Add the main entry point.

.drone.yaml

@@ -0,0 +1,24 @@
+---
+kind: pipeline
+type: docker
+name: gradle
+
+steps:
+  - name: test
+    image: gradle:8.3.0-jdk17-graal
+    commands:
+      - gradle assemble
+      - gradle check
+
+---
+kind: pipeline
+type: docker
+name: maven
+
+steps:
+  - name: test
+    image: maven:3.9.4-eclipse-temurin-17-alpine
+    commands:
+      - mvn install -DskipTests=true -Dmaven.javadoc.skip=true -B -V
+      - mvn test -B
+

build.gradle

@@ -12,12 +12,18 @@ java {
     }
 }
 
+compileJava {
+    options.encoding = 'UTF-8'
+}
+
 repositories {
   // Spock releases are available from Maven Central
   mavenCentral()
 }
 
 dependencies {
+  implementation 'com.google.guava:guava:32.1.2-jre'
+  implementation 'org.apache.commons:commons-lang3:3.13.0'
   // mandatory dependencies for using Spock
   implementation platform('org.apache.groovy:groovy-bom:4.0.15')
   implementation 'org.apache.groovy:groovy'

pom.xml

@@ -12,6 +12,8 @@
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
     <groovy.version>4.0.15</groovy.version>
+    <maven.compiler.source>17</maven.compiler.source>
+    <maven.compiler.target>17</maven.compiler.target>
   </properties>
 
   <build>
@@ -77,6 +79,16 @@
   </dependencyManagement>
 
   <dependencies>
+    <dependency>
+      <groupId>com.google.guava</groupId>
+      <artifactId>guava</artifactId>
+      <version>32.1.2-jre</version>
+    </dependency>
+    <dependency>
+      <groupId>org.apache.commons</groupId>
+      <artifactId>commons-lang3</artifactId>
+      <version>3.13.0</version>
+    </dependency>
     <!-- Mandatory dependencies for using Spock -->
     <dependency>
       <groupId>org.spockframework</groupId>

src/main/java/space/kklochko/simple_jbdd/Main.java

@@ -0,0 +1,24 @@
+package space.kklochko.simple_jbdd;
+
+import space.kklochko.simple_jbdd.tests.factories.AbstractTestRunnerFactory;
+import space.kklochko.simple_jbdd.tests.factories.SimpleTestRunnerFactory;
+import space.kklochko.simple_jbdd.tests.loaders.NameClassLoader;
+import space.kklochko.simple_jbdd.tests.reports.AbstractReporter;
+import space.kklochko.simple_jbdd.tests.reports.CLIReporter;
+import space.kklochko.simple_jbdd.tests.reports.fmt.SimpleTestReportFormatter;
+import space.kklochko.simple_jbdd.tests.runners.CLITestRunner;
+
+public class Main {
+    public static void main(String[] args) {
+        NameClassLoader loader = new NameClassLoader();
+        AbstractTestRunnerFactory testRunnerFactory = new SimpleTestRunnerFactory();
+        AbstractReporter reporter = new CLIReporter(new SimpleTestReportFormatter());
+
+        CLITestRunner runner = new CLITestRunner(loader, testRunnerFactory, reporter);
+
+        boolean status = runner.run();
+
+        System.exit(status ? 0 : 1);
+    }
+}
+

src/main/java/space/kklochko/simple_jbdd/annotations/Title.java

@@ -0,0 +1,13 @@
+package space.kklochko.simple_jbdd.annotations;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+@Retention(RetentionPolicy.RUNTIME)
+@Target(ElementType.TYPE)
+public @interface Title {
+    String value() default "Title";
+}
+

src/main/java/space/kklochko/simple_jbdd/test_examples/Sum.java

@@ -1,8 +0,0 @@
-package space.kklochko.simple_jbdd.test_examples;
-
-public class Sum {
-    static int sum(int a, int b) {
-        return a + b;
-    }
-}
-

src/main/java/space/kklochko/simple_jbdd/test_examples/samples/Sum.java

@@ -0,0 +1,8 @@
+package space.kklochko.simple_jbdd.test_examples.samples;
+
+public class Sum {
+    public static int sum(int a, int b) {
+        return a + b;
+    }
+}
+

src/main/java/space/kklochko/simple_jbdd/test_examples/tests/SimpleFailedThenTest.java

@@ -0,0 +1,15 @@
+package space.kklochko.simple_jbdd.test_examples.tests;
+
+import space.kklochko.simple_jbdd.annotations.Then;
+import space.kklochko.simple_jbdd.annotations.Title;
+import space.kklochko.simple_jbdd.tests.Test;
+
+
+@Title("A Simple Failed GivenWhenTest for Sum")
+public class SimpleFailedThenTest extends Test {
+    @Then
+    public void check() {
+        assert 30 == 10 + 20 + 1;
+    }
+}
+

src/main/java/space/kklochko/simple_jbdd/test_examples/tests/SimpleGivenWhenThenTest.java

@@ -0,0 +1,32 @@
+package space.kklochko.simple_jbdd.test_examples.tests;
+
+import space.kklochko.simple_jbdd.annotations.Given;
+import space.kklochko.simple_jbdd.annotations.Then;
+import space.kklochko.simple_jbdd.annotations.Title;
+import space.kklochko.simple_jbdd.annotations.When;
+import space.kklochko.simple_jbdd.test_examples.samples.Sum;
+import space.kklochko.simple_jbdd.tests.Test;
+
+@Title("A Simple GivenWhenTest for Sum")
+public class SimpleGivenWhenThenTest extends Test {
+    private Sum sum;
+    private int a;
+    private int b;
+
+    @Given
+    void setup() {
+        sum = new Sum();
+    }
+
+    @When
+    void trigger() {
+        a = 10;
+        b = 20;
+    }
+
+    @Then
+    void check() {
+        assert 30 == sum.sum(a, b);
+    }
+}
+

src/main/java/space/kklochko/simple_jbdd/test_examples/tests/SimpleThenTest.java

@@ -0,0 +1,14 @@
+package space.kklochko.simple_jbdd.test_examples.tests;
+
+import space.kklochko.simple_jbdd.annotations.Then;
+import space.kklochko.simple_jbdd.annotations.Title;
+import space.kklochko.simple_jbdd.tests.Test;
+
+@Title("Simple test")
+public class SimpleThenTest extends Test {
+    @Then("The sum of 10 and 20 is 30.")
+    public void check() {
+        assert 30 == 10 + 20;
+    }
+}
+

src/main/java/space/kklochko/simple_jbdd/test_examples/tests/SimpleThenTestWithoutTitle.java

@@ -0,0 +1,13 @@
+package space.kklochko.simple_jbdd.test_examples.tests;
+
+import space.kklochko.simple_jbdd.annotations.Then;
+import space.kklochko.simple_jbdd.annotations.Title;
+import space.kklochko.simple_jbdd.tests.Test;
+
+public class SimpleThenTestWithoutTitle extends Test {
+    @Then("The sum of 10 and 20 is 30.")
+    public void check() {
+        assert 30 == 10 + 20;
+    }
+}
+

src/main/java/space/kklochko/simple_jbdd/tests/Test.java

@@ -0,0 +1,6 @@
+package space.kklochko.simple_jbdd.tests;
+
+public abstract class Test {
+
+}
+

src/main/java/space/kklochko/simple_jbdd/tests/commands/AbstractTestCommand.java

@@ -0,0 +1,43 @@
+package space.kklochko.simple_jbdd.tests.commands;
+
+import space.kklochko.simple_jbdd.tests.Test;
+import java.util.Map;
+import java.util.TreeMap;
+
+public abstract class AbstractTestCommand<T extends Test> {
+    protected String type;
+    protected String label;
+
+    public AbstractTestCommand(String label) {
+        setLabel(label);
+    }
+
+    public abstract boolean test();
+
+    public Map<String, String> getLabels() {
+        Map<String, String> labels = new TreeMap<String, String>();
+        labels.put(getType(), this.getLabel());
+        return labels;
+    }
+
+    public String getType() {
+        return type;
+    }
+
+    public void setType(String type) {
+        this.type = type;
+    }
+
+    public void setLabel(String label) {
+        this.label = label;
+    }
+
+    public String getLabel() {
+        return label;
+    }
+
+    public abstract void setObject(T object);
+
+    public abstract T getObject();
+}
+

src/main/java/space/kklochko/simple_jbdd/tests/commands/SimpleTestCommand.java

@@ -0,0 +1,27 @@
+package space.kklochko.simple_jbdd.tests.commands;
+
+import space.kklochko.simple_jbdd.tests.Test;
+
+public class SimpleTestCommand<T extends Test> extends AbstractTestCommand<T> {
+    protected T object;
+
+    public SimpleTestCommand(String label, T object) {
+        super(label);
+        setObject(object);
+        setType("Title");
+    }
+
+    @Override
+    public boolean test() {
+        return true;
+    }
+
+    public void setObject(T object) {
+        this.object = object;
+    }
+
+    public T getObject() {
+        return object;
+    }
+}
+

src/main/java/space/kklochko/simple_jbdd/tests/commands/decorators/AbstractDecorator.java

@@ -0,0 +1,55 @@
+package space.kklochko.simple_jbdd.tests.commands.decorators;
+
+import space.kklochko.simple_jbdd.tests.Test;
+import space.kklochko.simple_jbdd.tests.commands.AbstractTestCommand;
+
+import java.lang.reflect.Method;
+import java.util.Map;
+
+public abstract class AbstractDecorator<T extends Test> extends AbstractTestCommand<T> {
+    protected AbstractTestCommand<T> command;
+
+    protected Method method;
+
+    public AbstractDecorator(String label, AbstractTestCommand<T> command) {
+        super(label);
+        setCommand(command);
+    }
+
+    public abstract boolean test();
+
+    public Map<String, String> getLabels() {
+        Map<String, String> labels = getCommand().getLabels();
+        labels.put(getType(), this.getLabel());
+        return labels;
+    }
+
+    public abstract boolean runMethod();
+
+    public void setMethod(Method method) {
+        this.method = method;
+    }
+
+    public Method getMethod() {
+        return method;
+    }
+
+    @Override
+    public void setObject(T object) {
+        command.setObject(object);
+    }
+
+    @Override
+    public T getObject() {
+        return command.getObject();
+    }
+
+    public AbstractTestCommand<T> getCommand() {
+        return command;
+    }
+
+    public void setCommand(AbstractTestCommand<T> command) {
+        this.command = command;
+    }
+}
+

src/main/java/space/kklochko/simple_jbdd/tests/commands/decorators/BlockDecorator.java

@@ -0,0 +1,44 @@
+package space.kklochko.simple_jbdd.tests.commands.decorators;
+
+import space.kklochko.simple_jbdd.tests.Test;
+import space.kklochko.simple_jbdd.tests.commands.AbstractTestCommand;
+
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+
+public class BlockDecorator<T extends Test> extends AbstractDecorator<T> {
+    public BlockDecorator(String label, AbstractTestCommand<T> command, Method method, String type) {
+        super(label, command);
+        setType(type);
+        setMethod(method);
+    }
+
+    public boolean test() {
+        boolean result = runMethod();
+
+        if(!result)
+            return false;
+
+        return getCommand().test();
+    }
+
+    public boolean runMethod() {
+        try {
+            method.setAccessible(true);
+            method.invoke(getCommand().getObject());
+            return true;
+        } catch (InvocationTargetException e) {
+            Throwable exception = e.getCause();
+
+            if(exception instanceof AssertionError)
+                throw (AssertionError) exception;
+
+            System.err.println(e.getMessage());
+            throw new RuntimeException(e);
+        } catch (IllegalAccessException e) {
+            System.err.println("Check access modifiers.");
+            throw new RuntimeException(e);
+        }
+    };
+}
+

src/main/java/space/kklochko/simple_jbdd/tests/factories/AbstractTestRunnerFactory.java

@@ -0,0 +1,10 @@
+package space.kklochko.simple_jbdd.tests.factories;
+
+import space.kklochko.simple_jbdd.tests.Test;
+import space.kklochko.simple_jbdd.tests.commands.AbstractTestCommand;
+import space.kklochko.simple_jbdd.tests.runners.AbstractTestRunner;
+
+public abstract class AbstractTestRunnerFactory {
+    public abstract AbstractTestRunner create(AbstractTestCommand<Test> command);
+}
+

src/main/java/space/kklochko/simple_jbdd/tests/factories/SimpleTestRunnerFactory.java

@@ -0,0 +1,13 @@
+package space.kklochko.simple_jbdd.tests.factories;
+
+import space.kklochko.simple_jbdd.tests.Test;
+import space.kklochko.simple_jbdd.tests.commands.AbstractTestCommand;
+import space.kklochko.simple_jbdd.tests.runners.AbstractTestRunner;
+import space.kklochko.simple_jbdd.tests.runners.SimpleTestRunner;
+
+public class SimpleTestRunnerFactory extends AbstractTestRunnerFactory {
+    public AbstractTestRunner create(AbstractTestCommand<Test> command) {
+        return new SimpleTestRunner(command);
+    }
+}
+

src/main/java/space/kklochko/simple_jbdd/tests/factories/TestCommandFactory.java

@@ -0,0 +1,76 @@
+package space.kklochko.simple_jbdd.tests.factories;
+
+import space.kklochko.simple_jbdd.annotations.Given;
+import space.kklochko.simple_jbdd.annotations.Then;
+import space.kklochko.simple_jbdd.annotations.Title;
+import space.kklochko.simple_jbdd.annotations.When;
+import space.kklochko.simple_jbdd.tests.Test;
+import space.kklochko.simple_jbdd.tests.commands.AbstractTestCommand;
+import space.kklochko.simple_jbdd.tests.commands.SimpleTestCommand;
+import space.kklochko.simple_jbdd.tests.commands.decorators.BlockDecorator;
+
+import java.lang.annotation.Annotation;
+import java.lang.reflect.Method;
+import java.util.Map;
+import java.util.TreeMap;
+
+public class TestCommandFactory {
+    public AbstractTestCommand create(Test input) {
+	    Class<?> aClass = input.getClass();
+	    Map<String, Method> test_methods = this.getTestMethods(aClass);
+
+        AbstractTestCommand<Test> aTestCommand = createTest(aClass, input);
+
+        if(test_methods.containsKey("Then")) {
+            Method then = test_methods.get("Then");
+            String label = then.getAnnotation(Then.class).value();
+            aTestCommand = new BlockDecorator<Test>(label, aTestCommand, then, "Then");
+        }
+
+        if(test_methods.containsKey("When")) {
+            Method when = test_methods.get("When");
+            String label = when.getAnnotation(When.class).value();
+            aTestCommand = new BlockDecorator<Test>(label, aTestCommand, when, "When");
+        }
+
+        if(test_methods.containsKey("Given")) {
+            Method when = test_methods.get("Given");
+            String label = when.getAnnotation(Given.class).value();
+            aTestCommand = new BlockDecorator<Test>(label, aTestCommand, when, "Given");
+        }
+
+        return aTestCommand;
+    }
+
+    protected AbstractTestCommand<Test> createTest(Class<?> aClass, Test input) {
+        Title aTitle = aClass.getAnnotation(Title.class);
+        String title = aClass.getName();
+
+        if(aTitle != null)
+            title = aTitle.value();
+
+        return new SimpleTestCommand<Test>(title, input);
+    }
+
+    protected <T extends Test> Map<String, Method> getTestMethods(Class<?> aClass) {
+        Map<String, Method> test_methods = new TreeMap<String, Method>();
+
+        for(Method method : aClass.getDeclaredMethods()) {
+            Annotation[] annotations = method.getAnnotations();
+
+            if (annotations.length == 0)
+                continue;
+
+            if(method.isAnnotationPresent(Given.class))
+                test_methods.put("Given", method);
+
+            if(method.isAnnotationPresent(When.class))
+                test_methods.put("When", method);
+
+            if(method.isAnnotationPresent(Then.class))
+                test_methods.put("Then", method);
+        }
+
+        return test_methods;
+    }
+}

src/main/java/space/kklochko/simple_jbdd/tests/factories/TestCommandQueueFactory.java

@@ -0,0 +1,49 @@
+package space.kklochko.simple_jbdd.tests.factories;
+
+import space.kklochko.simple_jbdd.tests.Test;
+import space.kklochko.simple_jbdd.tests.commands.AbstractTestCommand;
+
+import java.util.*;
+
+public class TestCommandQueueFactory {
+    private ArrayList<Test> tests;
+    private TestCommandFactory factory;
+
+    public TestCommandQueueFactory(ArrayList<Test> tests) {
+        setTests(tests);
+        setFactory(new TestCommandFactory());
+    }
+
+    public TestCommandQueueFactory(ArrayList<Test> tests, TestCommandFactory factory) {
+        setTests(tests);
+        setFactory(factory);
+    }
+
+    public ArrayList<AbstractTestCommand<Test>> create() {
+        ArrayList<AbstractTestCommand<Test>> commands = new ArrayList<AbstractTestCommand<Test>>();
+
+        for(Test test : getTests()) {
+            AbstractTestCommand<Test> command = getFactory().create(test);
+            commands.add(command);
+        }
+
+        return commands;
+    }
+
+    public ArrayList<Test> getTests() {
+        return tests;
+    }
+
+    public void setTests(ArrayList<Test> tests) {
+        this.tests = tests;
+    }
+
+    public TestCommandFactory getFactory() {
+        return factory;
+    }
+
+    public void setFactory(TestCommandFactory factory) {
+        this.factory = factory;
+    }
+}
+

src/main/java/space/kklochko/simple_jbdd/tests/factories/meta/AbstractTestCommandMetaDataFactory.java

@@ -0,0 +1,9 @@
+package space.kklochko.simple_jbdd.tests.factories.meta;
+
+import java.util.AbstractMap;
+import java.util.ArrayList;
+
+public abstract class AbstractTestCommandMetaDataFactory {
+    abstract public ArrayList<AbstractMap.SimpleEntry<String, String>> create();
+}
+

src/main/java/space/kklochko/simple_jbdd/tests/factories/meta/TestCommandMetaDataFactory.java

@@ -0,0 +1,34 @@
+package space.kklochko.simple_jbdd.tests.factories.meta;
+
+import space.kklochko.simple_jbdd.tests.commands.AbstractTestCommand;
+import space.kklochko.simple_jbdd.tests.commands.decorators.AbstractDecorator;
+
+import java.util.AbstractMap;
+import java.util.ArrayList;
+
+public class TestCommandMetaDataFactory extends AbstractTestCommandMetaDataFactory {
+    private AbstractTestCommand command;
+
+    public TestCommandMetaDataFactory(AbstractTestCommand command) {
+        this.command = command;
+    }
+
+    public ArrayList<AbstractMap.SimpleEntry<String, String>> create() {
+        ArrayList<AbstractMap.SimpleEntry<String, String>> blocks = new ArrayList<>();
+        AbstractTestCommand currentCommand = command;
+        Class<?> aClass = command.getClass();
+
+        while(AbstractDecorator.class.isAssignableFrom(aClass)) {
+            AbstractDecorator block = (AbstractDecorator) currentCommand;
+            blocks.add(new AbstractMap.SimpleEntry<>(block.getType(), block.getLabel()));
+
+            currentCommand = block.getCommand();
+            aClass = currentCommand.getClass();
+        }
+
+        blocks.add(0, (new AbstractMap.SimpleEntry<>(currentCommand.getType(), currentCommand.getLabel())));
+
+        return blocks;
+    }
+}
+

src/main/java/space/kklochko/simple_jbdd/tests/loaders/AbstractNameClassLoader.java

@@ -0,0 +1,8 @@
+package space.kklochko.simple_jbdd.tests.loaders;
+
+import java.util.Set;
+
+public abstract class AbstractNameClassLoader {
+    public abstract Set<Class<?>> load();
+}
+

src/main/java/space/kklochko/simple_jbdd/tests/loaders/ClassLoader.java

@@ -0,0 +1,26 @@
+package space.kklochko.simple_jbdd.tests.loaders;
+
+import java.util.ArrayList;
+import java.util.Set;
+
+public class ClassLoader<T> {
+
+    AbstractNameClassLoader nameLoader;
+
+    public ClassLoader(AbstractNameClassLoader nameLoader) {
+        this.nameLoader = nameLoader;
+    }
+
+    public ArrayList<T> load() {
+        Set<Class<?>> names = nameLoader.load();
+        ArrayList<T> classes = new ArrayList<>();
+
+        for(Class<?> name : names) {
+            SingleClassLoader loader = new SingleClassLoader(name.getName());
+            classes.add((T) loader.load());
+        }
+
+        return classes;
+    }
+}
+

src/main/java/space/kklochko/simple_jbdd/tests/loaders/NameClassLoader.java

@@ -0,0 +1,28 @@
+package space.kklochko.simple_jbdd.tests.loaders;
+
+import com.google.common.reflect.ClassPath;
+
+import java.io.IOException;
+import java.util.stream.Collectors;
+import java.util.Set;
+
+public class NameClassLoader extends AbstractNameClassLoader {
+    public Set<Class<?>> load() {
+        try {
+            return ClassPath.from(java.lang.ClassLoader.getSystemClassLoader())
+                        .getAllClasses()
+                        .stream()
+		        // exclude the Test class, which indicate a Test class
+                        .filter(aClass -> !aClass.getName().endsWith(".Test"))
+                        .filter(aClass -> aClass.getName().endsWith("Test"))
+		        // include classes which extends the Test class
+                        .filter(aClass -> space.kklochko.simple_jbdd.tests.Test.class.isAssignableFrom(aClass.load()))
+                        .filter(aClass -> aClass.getName().startsWith("space"))
+                        .map(aClass -> aClass.load())
+                        .collect(Collectors.toSet());
+        } catch (IOException e) {
+            return null;
+        }
+    }
+}
+

src/main/java/space/kklochko/simple_jbdd/tests/loaders/SingleClassLoader.java

@@ -0,0 +1,26 @@
+package space.kklochko.simple_jbdd.tests.loaders;
+
+public class SingleClassLoader {
+    String className;
+
+    public SingleClassLoader(String className) {
+        setClassName(className);
+    }
+
+    public Class<?> load() {
+        try {
+            return Class.forName(getClassName());
+        } catch (ClassNotFoundException e) {
+            return null;
+        }
+    }
+
+    public String getClassName() {
+        return className;
+    }
+
+    public void setClassName(String className) {
+        this.className = className;
+    }
+}
+

src/main/java/space/kklochko/simple_jbdd/tests/loaders/SingleTestLoader.java

@@ -0,0 +1,50 @@
+package space.kklochko.simple_jbdd.tests.loaders;
+
+import space.kklochko.simple_jbdd.tests.Test;
+
+import java.lang.reflect.Constructor;
+import java.lang.reflect.InvocationTargetException;
+
+public class SingleTestLoader {
+    String className;
+
+    public SingleTestLoader(String className) {
+        setClassName(className);
+    }
+
+    public Test load() {
+        SingleClassLoader loader = new SingleClassLoader(getClassName());
+        Class<?> aClass = loader.load();
+
+        if(aClass == null)
+            return null;
+
+        Constructor defaultConstructor = null;
+
+        for(Constructor constructor : aClass.getDeclaredConstructors()) {
+            if(constructor.getParameterCount() == 0) {
+                defaultConstructor = constructor;
+                break;
+            }
+        }
+
+        try {
+            return (Test) defaultConstructor.newInstance();
+        } catch (InstantiationException e) {
+            throw new RuntimeException(e);
+        } catch (IllegalAccessException e) {
+            throw new RuntimeException(e);
+        } catch (InvocationTargetException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    public String getClassName() {
+        return className;
+    }
+
+    public void setClassName(String className) {
+        this.className = className;
+    }
+}
+

src/main/java/space/kklochko/simple_jbdd/tests/reports/AbstractReporter.java

@@ -0,0 +1,40 @@
+package space.kklochko.simple_jbdd.tests.reports;
+
+import space.kklochko.simple_jbdd.tests.factories.meta.AbstractTestCommandMetaDataFactory;
+import space.kklochko.simple_jbdd.tests.reports.fmt.AbstractTestReportFormatter;
+
+import java.util.AbstractMap;
+import java.util.ArrayList;
+
+public abstract class AbstractReporter {
+    ArrayList<AbstractMap.SimpleEntry<AbstractTestCommandMetaDataFactory, Boolean>> Metadata;
+    AbstractTestReportFormatter formatter;
+
+    public AbstractReporter(ArrayList<AbstractMap.SimpleEntry<AbstractTestCommandMetaDataFactory, Boolean>> metadata, AbstractTestReportFormatter formatter) {
+        setMetadata(metadata);
+        setFormatter(formatter);
+    }
+
+    abstract public void report();
+
+    public ArrayList<AbstractMap.SimpleEntry<AbstractTestCommandMetaDataFactory, Boolean>> getMetadata() {
+        return Metadata;
+    }
+
+    public void setMetadata(ArrayList<AbstractMap.SimpleEntry<AbstractTestCommandMetaDataFactory, Boolean>> metadata) {
+        Metadata = metadata;
+    }
+
+    public void addMetadata(AbstractTestCommandMetaDataFactory testMetaData, boolean isPassed) {
+        getMetadata().add(new AbstractMap.SimpleEntry<>(testMetaData, isPassed));
+    }
+
+    public AbstractTestReportFormatter getFormatter() {
+        return formatter;
+    }
+
+    public void setFormatter(AbstractTestReportFormatter formatter) {
+        this.formatter = formatter;
+    }
+}
+

src/main/java/space/kklochko/simple_jbdd/tests/reports/CLIReporter.java

@@ -0,0 +1,99 @@
+package space.kklochko.simple_jbdd.tests.reports;
+
+import space.kklochko.simple_jbdd.tests.factories.meta.AbstractTestCommandMetaDataFactory;
+import space.kklochko.simple_jbdd.tests.reports.fmt.AbstractTestReportFormatter;
+
+import java.util.AbstractMap;
+import java.util.ArrayList;
+import org.apache.commons.lang3.StringUtils;
+
+public class CLIReporter extends AbstractReporter {
+    final int terminalWidth = 80;
+
+    public CLIReporter(AbstractTestReportFormatter formatter) {
+        super(null, formatter);
+    }
+
+    public CLIReporter(ArrayList<AbstractMap.SimpleEntry<AbstractTestCommandMetaDataFactory, Boolean>> metadata, AbstractTestReportFormatter formatter) {
+        super(metadata, formatter);
+    }
+
+    public void report() {
+        ArrayList<AbstractMap.SimpleEntry<String, Boolean>> testData = format();
+        ArrayList<AbstractMap.SimpleEntry<String, Boolean>> failedTestData = getFailedTests(testData);
+        int passed = count(testData, true);
+        int failed = count(testData, false);
+
+        System.out.printf("%s\n\n", center(" Tests "));
+        printTests(testData);
+
+        if(failed != 0) {
+            System.out.printf("%s\n\n", center(" Errors "));
+            printTests(failedTestData);
+        }
+
+        System.out.printf("%s\n", center(" Summary "));
+        System.out.print(summary(passed, failed));
+    }
+
+    public ArrayList<AbstractMap.SimpleEntry<String, Boolean>> format() {
+        ArrayList<AbstractMap.SimpleEntry<String, Boolean>> data = new ArrayList<>();
+
+        for(var pair : getMetadata()) {
+            boolean isPassed = pair.getValue();
+
+            getFormatter().setTestMetaData(pair.getKey().create());
+            getFormatter().setPassed(isPassed);
+
+            data.add(new AbstractMap.SimpleEntry<>(getFormatter().format(), isPassed));
+        }
+
+        return data;
+    }
+
+    public ArrayList<AbstractMap.SimpleEntry<String, Boolean>> getFailedTests(ArrayList<AbstractMap.SimpleEntry<String, Boolean>> testData) {
+        ArrayList<AbstractMap.SimpleEntry<String, Boolean>> failed = new ArrayList<>();
+
+        for(var pair : testData) {
+            boolean isPassed = pair.getValue();
+
+            if(isPassed) continue;
+
+            failed.add(pair);
+        }
+
+        return failed;
+    }
+
+    public int count(ArrayList<AbstractMap.SimpleEntry<String, Boolean>> testData, boolean isPassedStatus) {
+        int count = 0;
+
+        for(var pair : testData) {
+            boolean isPassed = pair.getValue();
+
+            if(isPassed == isPassedStatus)
+                count++;
+        }
+
+        return count;
+    }
+
+    public void printTests(ArrayList<AbstractMap.SimpleEntry<String, Boolean>> testData) {
+        for(var pair : testData) {
+            System.out.print(pair.getKey());
+        }
+    }
+
+    public String center(String content) {
+        return StringUtils.center(content, 80, '=');
+    }
+
+    public String summary(int passed, int failed) {
+        int all = passed + failed;
+        double passedPercent = (double) passed / (double) all * 100.0;
+        double failedPercent = (double) failed / (double) all * 100.0;
+
+        return String.format("Ran %d tests.\nPassed: %d (%.2f%%)\nFailed: %d (%.2f%%)\n", all, passed, passedPercent, failed, failedPercent);
+    }
+}
+

src/main/java/space/kklochko/simple_jbdd/tests/reports/fmt/AbstractTestReportFormatter.java

@@ -0,0 +1,33 @@
+package space.kklochko.simple_jbdd.tests.reports.fmt;
+
+import java.util.AbstractMap;
+import java.util.ArrayList;
+
+abstract public class AbstractTestReportFormatter {
+    private ArrayList<AbstractMap.SimpleEntry<String, String>> testMetaData;
+    private boolean isPassed;
+
+    public AbstractTestReportFormatter(ArrayList<AbstractMap.SimpleEntry<String, String>> testMetaData, boolean isPassed) {
+        setTestMetaData(testMetaData);
+        setPassed(isPassed);
+    }
+
+    public abstract String format();
+
+    public ArrayList<AbstractMap.SimpleEntry<String, String>> getTestMetaData() {
+        return testMetaData;
+    }
+
+    public void setTestMetaData(ArrayList<AbstractMap.SimpleEntry<String, String>> testMetaData) {
+        this.testMetaData = testMetaData;
+    }
+
+    public boolean isPassed() {
+        return isPassed;
+    }
+
+    public void setPassed(boolean passed) {
+        isPassed = passed;
+    }
+}
+

src/main/java/space/kklochko/simple_jbdd/tests/reports/fmt/SimpleTestReportFormatter.java

@@ -0,0 +1,42 @@
+package space.kklochko.simple_jbdd.tests.reports.fmt;
+
+import space.kklochko.simple_jbdd.tests.Test;
+
+import java.util.AbstractMap;
+import java.util.ArrayList;
+
+public class SimpleTestReportFormatter extends AbstractTestReportFormatter {
+    final private String passedIcon = "✓";
+    final private String failedIcon = "⨯";
+
+    public SimpleTestReportFormatter() {
+        super(null, false);
+    }
+
+    public SimpleTestReportFormatter(ArrayList<AbstractMap.SimpleEntry<String, String>> testMetaData, boolean isPassed) {
+        super(testMetaData, isPassed);
+    }
+
+    public String format() {
+        String status = (isPassed()) ? getPassedIcon() : getFailedIcon();
+        String title = getTestMetaData().get(0).getValue();
+
+        String result = String.format("%s %s\n", status, title);
+
+        for(int i=1; i<getTestMetaData().size(); ++i) {
+            AbstractMap.SimpleEntry<String, String> pair = getTestMetaData().get(i);
+            result += String.format("\t%s: %s\n", pair.getKey(), pair.getValue());
+        }
+
+        return result + '\n';
+    }
+
+    public String getPassedIcon() {
+        return passedIcon;
+    }
+
+    public String getFailedIcon() {
+        return failedIcon;
+    }
+}
+

src/main/java/space/kklochko/simple_jbdd/tests/runners/AbstractTestRunner.java

@@ -0,0 +1,6 @@
+package space.kklochko.simple_jbdd.tests.runners;
+
+public abstract class AbstractTestRunner {
+    public abstract boolean run();
+}
+

src/main/java/space/kklochko/simple_jbdd/tests/runners/CLITestRunner.java

@@ -0,0 +1,102 @@
+package space.kklochko.simple_jbdd.tests.runners;
+
+import space.kklochko.simple_jbdd.tests.Test;
+import space.kklochko.simple_jbdd.tests.commands.AbstractTestCommand;
+import space.kklochko.simple_jbdd.tests.factories.AbstractTestRunnerFactory;
+import space.kklochko.simple_jbdd.tests.factories.TestCommandQueueFactory;
+import space.kklochko.simple_jbdd.tests.factories.meta.AbstractTestCommandMetaDataFactory;
+import space.kklochko.simple_jbdd.tests.factories.meta.TestCommandMetaDataFactory;
+import space.kklochko.simple_jbdd.tests.loaders.AbstractNameClassLoader;
+import space.kklochko.simple_jbdd.tests.loaders.SingleTestLoader;
+import space.kklochko.simple_jbdd.tests.reports.AbstractReporter;
+
+import java.util.AbstractMap;
+import java.util.ArrayList;
+import java.util.Set;
+import java.util.stream.Collectors;
+import java.util.stream.IntStream;
+
+public class CLITestRunner extends AbstractTestRunner {
+    private ArrayList<AbstractTestCommand<Test>> commands;
+    private AbstractNameClassLoader classLoader;
+    private AbstractTestRunnerFactory runnerFactory;
+    private AbstractReporter reporter;
+
+    public CLITestRunner(AbstractNameClassLoader classLoader, AbstractTestRunnerFactory runnerFactory, AbstractReporter reporter) {
+        setClassLoader(classLoader);
+        setRunnerFactory(runnerFactory);
+        setReporter(reporter);
+    }
+
+    public boolean run() {
+        commands = createCommands(load());
+        ArrayList<Boolean> testStatuses = runTests(commands);
+        report(createMetadata(commands, testStatuses));
+
+        return isFailed(testStatuses);
+    }
+
+    public ArrayList<Test> load() {
+        Set<Class<?>> classes = this.classLoader.load();
+        ArrayList<Test> tests = new ArrayList();
+
+        for(var aClass : classes) {
+            tests.add((new SingleTestLoader(aClass.getName())).load());
+        }
+
+        return tests;
+    }
+
+    public ArrayList<AbstractTestCommand<Test>> createCommands(ArrayList<Test> tests) {
+        TestCommandQueueFactory factory = new TestCommandQueueFactory(tests);
+        return factory.create();
+    }
+
+    public ArrayList<Boolean> runTests(ArrayList<AbstractTestCommand<Test>> commands) {
+        return commands.stream()
+                       .map(c -> runnerFactory.create(c).run())
+                       .collect(Collectors.toCollection(ArrayList::new));
+    }
+
+    public ArrayList<AbstractMap.SimpleEntry<AbstractTestCommandMetaDataFactory, Boolean>> createMetadata(ArrayList<AbstractTestCommand<Test>> commands, ArrayList<Boolean> testStatuses) {
+        return IntStream.range(0, commands.size())
+                        .mapToObj(i -> new AbstractMap.SimpleEntry<AbstractTestCommandMetaDataFactory, Boolean>(
+                                            new TestCommandMetaDataFactory(commands.get(i)),
+                                            testStatuses.get(i)))
+                        .collect(Collectors.toCollection(ArrayList::new));
+    }
+
+    public void report(ArrayList<AbstractMap.SimpleEntry<AbstractTestCommandMetaDataFactory, Boolean>> metadata) {
+        reporter.setMetadata(metadata);
+        reporter.report();
+    }
+
+    public boolean isFailed(ArrayList<Boolean> testStatuses) {
+        return !testStatuses.stream().anyMatch(b -> b == false);
+    }
+
+    public AbstractNameClassLoader getClassLoader() {
+        return classLoader;
+    }
+
+    public void setClassLoader(AbstractNameClassLoader classLoader) {
+        this.classLoader = classLoader;
+    }
+
+    public AbstractTestRunnerFactory getRunnerFactory() {
+        return runnerFactory;
+    }
+
+    public void setRunnerFactory(AbstractTestRunnerFactory runnerFactory) {
+        this.runnerFactory = runnerFactory;
+    }
+
+    public AbstractReporter getReporter() {
+        return reporter;
+    }
+
+    public void setReporter(AbstractReporter reporter) {
+        this.reporter = reporter;
+    }
+}
+

src/main/java/space/kklochko/simple_jbdd/tests/runners/SimpleTestRunner.java

@@ -0,0 +1,29 @@
+package space.kklochko.simple_jbdd.tests.runners;
+
+import space.kklochko.simple_jbdd.tests.Test;
+import space.kklochko.simple_jbdd.tests.commands.AbstractTestCommand;
+
+public class SimpleTestRunner extends AbstractTestRunner {
+    private AbstractTestCommand<Test> command;
+
+    public SimpleTestRunner(AbstractTestCommand<Test> command) {
+        setCommand(command);
+    }
+
+    public boolean run() {
+        try {
+            return getCommand().test();
+        }catch (AssertionError e) {
+            return false;
+        }
+    }
+
+    public AbstractTestCommand<Test> getCommand() {
+        return command;
+    }
+
+    public void setCommand(AbstractTestCommand<Test> command) {
+        this.command = command;
+    }
+}
+

src/test/groovy/space/kklochko/simple_jbdd/test_examples/samples/SumSpec.groovy

@@ -1,5 +1,6 @@
-package space.kklochko.simple_jbdd.test_examples
+package space.kklochko.simple_jbdd.test_examples.samples
 
+import space.kklochko.simple_jbdd.test_examples.samples.Sum
 import spock.lang.Specification
 
 class SumSpec extends Specification {

src/test/groovy/space/kklochko/simple_jbdd/tests/factories/IntegratedTestCommandQueueFactorySpec.groovy

@@ -0,0 +1,54 @@
+package space.kklochko.simple_jbdd.tests.factories
+
+import space.kklochko.simple_jbdd.test_examples.tests.SimpleGivenWhenThenTest
+import space.kklochko.simple_jbdd.test_examples.tests.SimpleThenTest
+import space.kklochko.simple_jbdd.test_examples.tests.SimpleThenTestWithoutTitle
+import space.kklochko.simple_jbdd.tests.Test
+import spock.lang.Narrative
+import spock.lang.Specification
+import spock.lang.Subject
+import spock.lang.Title
+
+@Narrative("""The factory must generate a queue of the test commands, so
+those tests check if factory generate them right.
+""")
+@Title("Integrated tests for TestCommandQueueFactory")
+class IntegratedTestCommandQueueFactorySpec extends Specification {
+    def "Factory generate the queue and its size is 2."() {
+        given: "I have a list of tests"
+        def tests = [new SimpleThenTest(), new SimpleThenTestWithoutTitle()]
+
+        and: "I have a test factory"
+        def testFactory = new TestCommandFactory()
+
+        and: "I have a factory"
+        @Subject
+        def factory = new TestCommandQueueFactory(tests, testFactory)
+
+        when: "Factory build the queue"
+        def queue = factory.create()
+
+        then: "the size is 2"
+        2 == queue.size()
+    }
+
+    def "Factory generate the queue and the commands and test order is the same."() {
+        given: "I have a list of tests with first methods [check, setup]"
+        def tests = [new SimpleThenTest(), new SimpleGivenWhenThenTest()]
+
+        and: "I have a test factory"
+        def testFactory = new TestCommandFactory()
+
+        and: "I have a factory"
+        @Subject
+        def factory = new TestCommandQueueFactory(tests, testFactory)
+
+        when: "Factory build the queue"
+        def queue = factory.create()
+
+        then: "the order is the same"
+        queue[0].method.getName() == "check"
+        queue[1].method.getName() == "setup"
+    }
+}
+

src/test/groovy/space/kklochko/simple_jbdd/tests/factories/TestCommandFactorySpec.groovy

@@ -0,0 +1,96 @@
+package space.kklochko.simple_jbdd.tests.factories
+
+import space.kklochko.simple_jbdd.test_examples.tests.SimpleGivenWhenThenTest
+import space.kklochko.simple_jbdd.test_examples.tests.SimpleThenTest
+import space.kklochko.simple_jbdd.test_examples.tests.SimpleThenTestWithoutTitle
+import space.kklochko.simple_jbdd.tests.factories.TestCommandFactory
+import spock.lang.Narrative;
+import spock.lang.Specification
+import spock.lang.Subject
+import spock.lang.Title
+
+@Narrative("""The factory must generate a test command, so
+those tests check if factory generate them right.
+""")
+@Title("Unit tests for TestCommandFactory")
+class TestCommandFactorySpec extends Specification {
+    def "If the map of methods have one test block."() {
+        given: "I have a TestCommandFactory object"
+        @Subject
+        def factory = new TestCommandFactory();
+
+        and: "I also have a SimpleThenTest object"
+        def simpleThenTest = new SimpleThenTest()
+
+        when: "If a test have only one block"
+        def map = factory.getTestMethods(simpleThenTest.getClass())
+
+        then: "the map size is 1 method"
+        1 == map.size()
+    }
+
+    def "createTest() sets the title to a class name if no Title annotation."() {
+        given: "I have a test factory"
+        @Subject
+        def factory = new TestCommandFactory()
+
+        and: "I have a test class without Title"
+        def testClass = new SimpleThenTestWithoutTitle()
+
+        when: "I build a test"
+        def test = factory.create(testClass)
+
+        then: "The test have title as the test class"
+        testClass.class.getName() == test.getLabels()['Title']
+    }
+
+    def "createTest() sets the title to a value of the Title annotation."() {
+        given: "I have a test factory"
+        @Subject
+        def factory = new TestCommandFactory()
+
+        and: "I have a test class with Title"
+        def testClass = new SimpleThenTest()
+
+        and: "and the title of the annotation"
+        def titleClass = space.kklochko.simple_jbdd.annotations.Title.class
+        def title = testClass.getClass().getAnnotation(titleClass).value()
+
+        when: "I build a test"
+        def test = factory.create(testClass)
+
+        then: "The test have title as the test class"
+        title == test.getLabels()['Title']
+    }
+
+    def "createTest() build a Test with only Then."() {
+        given: "I have a test factory"
+        @Subject
+        def factory = new TestCommandFactory()
+
+        and: "I have a test class with Title"
+        def testClass = new SimpleThenTest()
+
+        when: "I build a test"
+        def test = factory.create(testClass)
+
+        then: "The test have title and then method"
+        ['Title', 'Then'].toSet() == test.getLabels().keySet()
+    }
+
+    def "createTest() build a Test with Given-When-Then."() {
+        given: "I have a test factory"
+        @Subject
+        def factory = new TestCommandFactory()
+
+        and: "I have a test class with Title and Given-When-Then"
+        def testClass = new SimpleGivenWhenThenTest()
+
+        when: "I build a test"
+        def test = factory.create(testClass)
+
+        then: "The test have title and then method"
+        ['Title', 'Given', 'When', 'Then'].toSet() == test.getLabels().keySet()
+    }
+}
+

src/test/groovy/space/kklochko/simple_jbdd/tests/factories/TestCommandQueueFactorySpec.groovy

@@ -0,0 +1,36 @@
+package space.kklochko.simple_jbdd.tests.factories
+
+import space.kklochko.simple_jbdd.test_examples.tests.SimpleThenTest
+import space.kklochko.simple_jbdd.test_examples.tests.SimpleThenTestWithoutTitle
+import space.kklochko.simple_jbdd.tests.Test
+import space.kklochko.simple_jbdd.tests.commands.decorators.BlockDecorator
+import spock.lang.Narrative
+import spock.lang.Specification
+import spock.lang.Subject
+import spock.lang.Title
+
+@Narrative("""The factory must generate a queue of the test commands, so
+those tests check if factory generate them right.
+""")
+@Title("Unit tests for TestCommandQueueFactory")
+class TestCommandQueueFactorySpec extends Specification {
+    def "Factory generate the queue and its size is 2."() {
+        given: "I have a list of tests"
+        def tests = [Mock(SimpleThenTest), Mock(SimpleThenTestWithoutTitle)]
+
+        and: "I have a test factory"
+        def testFactory = Stub(TestCommandFactory)
+        testFactory.create() >>> [Mock(BlockDecorator<Test>)]*2
+
+        and: "I have the factory"
+        @Subject
+        def factory = new TestCommandQueueFactory(tests, testFactory)
+
+        when: "Factory build the queue"
+        def queue = factory.create()
+
+        then: "the size is 2"
+        2 == queue.size()
+    }
+}
+

src/test/groovy/space/kklochko/simple_jbdd/tests/factories/meta/IntegratedTestCommandMetaDataFactorySpec.groovy

@@ -0,0 +1,46 @@
+package space.kklochko.simple_jbdd.tests.factories.meta
+
+import space.kklochko.simple_jbdd.test_examples.tests.SimpleFailedThenTest
+import space.kklochko.simple_jbdd.test_examples.tests.SimpleGivenWhenThenTest
+import space.kklochko.simple_jbdd.test_examples.tests.SimpleThenTest
+import space.kklochko.simple_jbdd.test_examples.tests.SimpleThenTestWithoutTitle
+import space.kklochko.simple_jbdd.tests.commands.AbstractTestCommand
+import space.kklochko.simple_jbdd.tests.commands.decorators.BlockDecorator
+import space.kklochko.simple_jbdd.tests.factories.TestCommandFactory
+import space.kklochko.simple_jbdd.tests.runners.SimpleTestRunner
+import spock.lang.Narrative
+import spock.lang.Specification
+import spock.lang.Subject
+import spock.lang.Title
+
+@Narrative("""The factory must generate a test command metadata, so
+those tests check if the factory generate it right.
+""")
+@Title("Integrated tests for TestCommandMetaDataFactory")
+class IntegratedTestCommandMetaDataFactorySpec extends Specification {
+    def "Metadata have  the map of methods have one test block."() {
+        given: "I have a command factory"
+        def commandFactory = new TestCommandFactory();
+
+        and: "I have a command of a test"
+        def command = commandFactory.create(testObject)
+
+        and: "I have a TestCommandMetaDataFactory object"
+        @Subject
+        def factory = new TestCommandMetaDataFactory(command)
+
+        when: "Parse the command to get metadata"
+        def metadata = factory.create()
+
+        then: "the metadata have only two labels for Title and Then"
+        expectedCount == metadata.size()
+
+        where: "Possible variants of tests"
+        testObject                       || expectedCount
+        new SimpleThenTest()             || 2
+        new SimpleGivenWhenThenTest()    || 4
+        new SimpleThenTestWithoutTitle() || 2
+        new SimpleFailedThenTest()       || 2
+    }
+}
+

src/test/groovy/space/kklochko/simple_jbdd/tests/factories/meta/TestCommandMetaDataFactorySpec.groovy

@@ -0,0 +1,93 @@
+package space.kklochko.simple_jbdd.tests.factories.meta
+
+import space.kklochko.simple_jbdd.test_examples.tests.SimpleGivenWhenThenTest
+import space.kklochko.simple_jbdd.test_examples.tests.SimpleThenTest
+import space.kklochko.simple_jbdd.tests.commands.AbstractTestCommand
+import space.kklochko.simple_jbdd.tests.commands.decorators.BlockDecorator
+import space.kklochko.simple_jbdd.tests.factories.TestCommandFactory
+import spock.lang.Narrative;
+import spock.lang.Specification
+import spock.lang.Subject
+import spock.lang.Title
+
+@Narrative("""The factory must generate a test command metadata, so
+those tests check if the factory generate it right.
+""")
+@Title("Unit tests for TestCommandMetaDataFactory")
+class TestCommandMetaDataFactorySpec extends Specification {
+    def "If the map of methods have one test block."() {
+        given: "I have a simple test with only Then block and its command."
+        def test = Mock(AbstractTestCommand) {
+            getType() >> "Title"
+            getLabel() >> "A simple test"
+        }
+
+        def command = GroovyMock(BlockDecorator) {
+            getType() >> "Then"
+            getLabel() >> "Then block"
+            getCommand() >> test
+        }
+
+        and: "I have a TestCommandMetaDataFactory object"
+        @Subject
+        def factory = new TestCommandMetaDataFactory(command)
+
+        when: "Parse the command to get metadata"
+        def metadata = factory.create()
+
+        then: "The metadata have only two labels for Title and Then"
+        2 == metadata.size()
+
+        and: "The format and the order must be the same"
+        metadata == [
+                new AbstractMap.SimpleEntry<>("Title", "A simple test"),
+                new AbstractMap.SimpleEntry<>("Then", "Then block")
+        ]
+    }
+
+    def "If the map of methods have GivenWhenThen blocks."() {
+        given: "I have a simple test with only Then block and its command."
+        def test = Mock(AbstractTestCommand) {
+            getType() >> "Title"
+            getLabel() >> "A simple test"
+        }
+
+        and: "Bootstrapping the test command"
+        def then = GroovyMock(BlockDecorator) {
+            getType() >> "Then"
+            getLabel() >> "Then block"
+            getCommand() >> test
+        }
+
+        def when = GroovyMock(BlockDecorator) {
+            getType() >> "When"
+            getLabel() >> "When block"
+            getCommand() >> then
+        }
+
+        def command = GroovyMock(BlockDecorator) {
+            getType() >> "Given"
+            getLabel() >> "Given block"
+            getCommand() >> when
+        }
+
+        and: "I have a TestCommandMetaDataFactory object"
+        @Subject
+        def factory = new TestCommandMetaDataFactory(command)
+
+        when: "Parse the command to get metadata"
+        def metadata = factory.create()
+
+        then: "The metadata have only two labels for Title and Then"
+        4 == metadata.size()
+
+        and: "The format and the order must be the same"
+        metadata == [
+                new AbstractMap.SimpleEntry<>("Title", "A simple test"),
+                new AbstractMap.SimpleEntry<>("Given", "Given block"),
+                new AbstractMap.SimpleEntry<>("When", "When block"),
+                new AbstractMap.SimpleEntry<>("Then", "Then block")
+        ]
+    }
+}
+

src/test/groovy/space/kklochko/simple_jbdd/tests/loaders/IntegratedClassLoader.groovy

@@ -0,0 +1,43 @@
+package space.kklochko.simple_jbdd.tests.loaders
+
+import spock.lang.Narrative
+import spock.lang.Specification
+import spock.lang.Subject
+import spock.lang.Title
+
+@Narrative("""The loader must return a test classes or null, so
+those tests check if responses are right.
+""")
+@Title("Integrated tests for ClassLoader.")
+class IntegratedClassLoader extends Specification {
+    def "The classes have been loaded."() {
+        given: "I have a name class loader"
+        def nameLoader = new NameClassLoader()
+
+        and: "I have a loader for classes"
+        @Subject
+        def loader = new ClassLoader(nameLoader)
+
+        when: "The classes were loaded"
+        def classes = loader.load()
+
+        then: "Checking that the test result is expected"
+        3 == classes.size()
+    }
+
+    def "The classes must be represent the Test interface."() {
+        given: "I have a name class loader"
+        def nameLoader = new NameClassLoader()
+
+        and: "I have a loader for classes"
+        @Subject
+        def loader = new ClassLoader(nameLoader)
+
+        when: "The classes were loaded"
+        def classes = loader.load()
+
+        then: "Checking that the test result is expected"
+        classes.every({ space.kklochko.simple_jbdd.tests.Test.class.isAssignableFrom(it) })
+    }
+}
+

src/test/groovy/space/kklochko/simple_jbdd/tests/loaders/IntegratedNameClassLoader.groovy

@@ -0,0 +1,25 @@
+package space.kklochko.simple_jbdd.tests.loaders
+
+import spock.lang.Narrative
+import spock.lang.Specification
+import spock.lang.Subject
+import spock.lang.Title
+
+@Narrative("""The loader must return a test class names or null, so
+those tests check if responses are right.
+""")
+@Title("Integrated tests for NameClassLoader.")
+class IntegratedNameClassLoader extends Specification {
+    def "The class names have been loaded."() {
+        given: "I have a class loader"
+        @Subject
+        def loader = new NameClassLoader()
+
+        when: "The class names were loaded"
+        def classNames = loader.load()
+
+        then: "Checking that the test result is expected"
+        3 == classNames.size()
+    }
+}
+

src/test/groovy/space/kklochko/simple_jbdd/tests/loaders/IntegratedSingleClassLoader.groovy

@@ -0,0 +1,31 @@
+package space.kklochko.simple_jbdd.tests.loaders
+
+import space.kklochko.simple_jbdd.test_examples.tests.SimpleThenTest
+import spock.lang.Narrative
+import spock.lang.Specification
+import spock.lang.Subject
+import spock.lang.Title
+
+@Narrative("""The loader must return a class or null, so
+those tests check if responses are right.
+""")
+@Title("Integrated tests for SingleClassLoader.")
+class IntegratedSingleClassLoader extends Specification {
+    def "The class has been loaded."() {
+        given: "I have a class loader"
+        @Subject
+        def loader = new SingleClassLoader(className)
+
+        when: "The class was loaded"
+        def aClass = loader.load()
+
+        then: "Checking that the test result is expected"
+        aClass == expectedClass
+
+        where: "Possible variants of tests"
+        className                                                       || expectedClass
+        "fourHundredFour"                                               || null
+        "space.kklochko.simple_jbdd.test_examples.tests.SimpleThenTest" || SimpleThenTest
+    }
+}
+

src/test/groovy/space/kklochko/simple_jbdd/tests/loaders/IntegratedSingleTestLoader.groovy

@@ -0,0 +1,31 @@
+package space.kklochko.simple_jbdd.tests.loaders
+
+import space.kklochko.simple_jbdd.test_examples.tests.SimpleThenTest
+import spock.lang.Narrative
+import spock.lang.Specification
+import spock.lang.Subject
+import spock.lang.Title
+
+@Narrative("""The loader must return a class or null, so
+those tests check if responses are right.
+""")
+@Title("Integrated tests for SingleTestLoader.")
+class IntegratedSingleTestLoader extends Specification {
+    def "The class has been loaded."() {
+        given: "I have a class loader"
+        @Subject
+        def loader = new SingleTestLoader(className)
+
+        when: "The class was loaded"
+        def aClass = loader.load()
+
+        then: "Checking that the test result is expected"
+        aClass?.class == expectedClass
+
+        where: "Possible variants of tests"
+        className                                                       || expectedClass
+        "fourHundredFour"                                               || null
+        "space.kklochko.simple_jbdd.test_examples.tests.SimpleThenTest" || SimpleThenTest
+    }
+}
+

src/test/groovy/space/kklochko/simple_jbdd/tests/reports/CLIReporterFormatMethodSpec.groovy

@@ -0,0 +1,72 @@
+package space.kklochko.simple_jbdd.tests.reports
+
+import space.kklochko.simple_jbdd.tests.factories.meta.AbstractTestCommandMetaDataFactory
+import space.kklochko.simple_jbdd.tests.reports.fmt.AbstractTestReportFormatter
+import space.kklochko.simple_jbdd.tests.reports.fmt.SimpleTestReportFormatter
+import spock.lang.Narrative
+import spock.lang.Specification
+import spock.lang.Subject
+import spock.lang.Title
+
+@Narrative("""The reporter must generate a report in the same format, so
+those tests check if the reporter generate it right.
+""")
+@Title("Unit tests for CLIReporter.format()")
+class CLIReporterFormatMethodSpec extends Specification {
+    private metaData
+
+    def setup() {
+        def factory = Mock(AbstractTestCommandMetaDataFactory) {
+            create() >> [
+                    new AbstractMap.SimpleEntry<>("Title", "A simple test"),
+                    new AbstractMap.SimpleEntry<>("Then", "Then block")
+            ]
+        }
+
+        def metaData = [
+                new AbstractMap.SimpleEntry<>(factory, true),
+                new AbstractMap.SimpleEntry<>(factory, false)
+        ]
+
+        this.metaData = metaData
+    }
+
+    def "Format function use formatter twice."() {
+        given: "I have a formatter"
+        def formatter = Mock(AbstractTestReportFormatter)
+
+        and: "I have a reporter"
+        @Subject
+        def reporter = new CLIReporter(metaData, formatter)
+
+        when: "Generate the summary format"
+        def formattedTestData = reporter.format()
+
+        then: "The methods must called 2 times"
+        2 * formatter.format()
+        2 * formatter.setPassed(_)
+        2 * formatter.setTestMetaData(_)
+
+        and: "The data must have 2 elements"
+        2 == formattedTestData.size()
+    }
+
+    def "Format function returns the formatted data."() {
+        given: "I have a formatter"
+        def formatter = new SimpleTestReportFormatter()
+
+        and: "I have a reporter"
+        @Subject
+        def reporter = new CLIReporter(metaData, formatter)
+
+        when: "Generate the summary format"
+        def formattedTestData = reporter.format()
+
+        then: "The format must have not null values"
+        formattedTestData.every({ it.getKey() != null })
+
+        and: "The data must have 2 elements"
+        2 == formattedTestData.size()
+    }
+}
+

src/test/groovy/space/kklochko/simple_jbdd/tests/reports/CLIReporterSpec.groovy

@@ -0,0 +1,77 @@
+package space.kklochko.simple_jbdd.tests.reports
+
+import space.kklochko.simple_jbdd.tests.factories.meta.AbstractTestCommandMetaDataFactory
+import space.kklochko.simple_jbdd.tests.reports.fmt.AbstractTestReportFormatter
+import space.kklochko.simple_jbdd.tests.reports.fmt.SimpleTestReportFormatter
+import spock.lang.Narrative
+import spock.lang.Specification
+import spock.lang.Subject
+import spock.lang.Title
+
+@Narrative("""The reporter must generate a report in the same format, so
+those tests check if the reporter generate it right.
+""")
+@Title("Unit tests for CLIReporter")
+class CLIReporterSpec extends Specification {
+    def "Function, getFailedTest, returns the data of failed tests."() {
+        given: "I have a reporter"
+        @Subject
+        def reporter = new CLIReporter(null, null)
+
+        and: "I have a testData"
+        def passedTestPair = new AbstractMap.SimpleEntry<>("Passed", true)
+        def failedTestPair = new AbstractMap.SimpleEntry<>("Failed", false)
+        def testData = Collections.nCopies(countPassed, passedTestPair) + Collections.nCopies(countFailed, failedTestPair)
+
+        when: "Generate the summary format"
+        def failedTestData = reporter.getFailedTests(testData)
+
+        then: "The format must be the same"
+        failedTestData.every({ it.getKey() == "Failed" && it.getValue() == false})
+        expectedFailedCount == failedTestData.size()
+
+        where: "Possible variants of tests"
+        countPassed | countFailed || expectedFailedCount
+        5           | 10          || 10
+    }
+
+    def "Count function returns the count of passed or failed tests."() {
+        given: "I have a reporter"
+        @Subject
+        def reporter = new CLIReporter(null, null)
+
+        and: "I have a testData"
+        def passedTestPair = new AbstractMap.SimpleEntry<>("Passed", true)
+        def failedTestPair = new AbstractMap.SimpleEntry<>("Failed", false)
+        def testData = Collections.nCopies(countPassed, passedTestPair) + Collections.nCopies(countFailed, failedTestPair)
+
+        when: "Generate the summary format"
+        def count = reporter.count(testData, isPassed)
+
+        then: "The format must be the same"
+        expectedCount == count
+
+        where: "Possible variants of tests"
+        countPassed | countFailed | isPassed || expectedCount
+        10          | 20          | true     || 10
+        10          | 20          | false    || 20
+    }
+
+    def "Summary format."() {
+        given: "I have a reporter"
+        @Subject
+        def reporter = new CLIReporter(null, null)
+
+        when: "Generate the summary format"
+        def format = reporter.summary(passed, failed)
+
+        then: "The format must be the same"
+        expectedFormat == format
+
+        where: "Possible variants of tests"
+        passed | failed || expectedFormat
+        10     | 20     || "Ran 30 tests.\nPassed: 10 (33.33%)\nFailed: 20 (66.67%)\n"
+        10     | 10     || "Ran 20 tests.\nPassed: 10 (50.00%)\nFailed: 10 (50.00%)\n"
+    }
+}
+

src/test/groovy/space/kklochko/simple_jbdd/tests/reports/fmt/SimpleTestReportFormatterSpec.groovy

@@ -0,0 +1,68 @@
+package space.kklochko.simple_jbdd.tests.reports.fmt
+
+import space.kklochko.simple_jbdd.test_examples.tests.SimpleFailedThenTest
+import space.kklochko.simple_jbdd.test_examples.tests.SimpleGivenWhenThenTest
+import space.kklochko.simple_jbdd.test_examples.tests.SimpleThenTest
+import space.kklochko.simple_jbdd.test_examples.tests.SimpleThenTestWithoutTitle
+import space.kklochko.simple_jbdd.tests.commands.AbstractTestCommand
+import space.kklochko.simple_jbdd.tests.commands.decorators.BlockDecorator
+import space.kklochko.simple_jbdd.tests.factories.meta.TestCommandMetaDataFactory
+import spock.lang.Narrative
+import spock.lang.Specification
+import spock.lang.Subject
+import spock.lang.Title
+
+@Narrative("""The formatter must generate a format for the test command metadata, so
+those tests check if the formatter generate it right.
+""")
+@Title("Unit tests for SimpleTestReportFormatter")
+class SimpleTestReportFormatterSpec extends Specification {
+    def "If the map of methods have one test block."() {
+        given: "I have a metaData"
+        def metaData = [
+            new AbstractMap.SimpleEntry<>("Title", "A simple test"),
+            new AbstractMap.SimpleEntry<>("Then", "Then block")
+        ]
+
+        and: "I have the formatter object"
+        @Subject
+        def formatter = new SimpleTestReportFormatter(metaData, isPassed)
+
+        when: "Generate the format"
+        def format = formatter.format()
+
+        then: "The format must be the same"
+        expectedFormat == format
+
+        where: "Possible variants of tests"
+        isPassed || expectedFormat
+        true     || "✓ A simple test\n\tThen: Then block\n\n"
+        false    || "⨯ A simple test\n\tThen: Then block\n\n"
+    }
+
+    def "If the map of methods have GivenWhenThen blocks."() {
+        given: "I have a metaData"
+        def metaData = [
+            new AbstractMap.SimpleEntry<>("Title", "A simple test"),
+            new AbstractMap.SimpleEntry<>("Given", "Given block"),
+            new AbstractMap.SimpleEntry<>("When", "When block"),
+            new AbstractMap.SimpleEntry<>("Then", "Then block")
+        ]
+
+        and: "I have the formatter object"
+        @Subject
+        def formatter = new SimpleTestReportFormatter(metaData, isPassed)
+
+        when: "Generate the format"
+        def format = formatter.format()
+
+        then: "The format must be the same"
+        expectedFormat == format
+
+        where: "Possible variants of tests"
+        isPassed || expectedFormat
+        true     || "✓ A simple test\n\tGiven: Given block\n\tWhen: When block\n\tThen: Then block\n\n"
+        false    || "⨯ A simple test\n\tGiven: Given block\n\tWhen: When block\n\tThen: Then block\n\n"
+    }
+}
+

src/test/groovy/space/kklochko/simple_jbdd/tests/runners/IntegratedSimpleTestRunnerSpec.groovy

@@ -0,0 +1,42 @@
+package space.kklochko.simple_jbdd.tests.runners
+
+import space.kklochko.simple_jbdd.test_examples.tests.SimpleFailedThenTest
+import space.kklochko.simple_jbdd.test_examples.tests.SimpleGivenWhenThenTest
+import space.kklochko.simple_jbdd.test_examples.tests.SimpleThenTest
+import space.kklochko.simple_jbdd.test_examples.tests.SimpleThenTestWithoutTitle
+import space.kklochko.simple_jbdd.tests.factories.TestCommandFactory
+import spock.lang.Narrative
+import spock.lang.Specification
+import spock.lang.Subject
+import spock.lang.Title
+
+@Narrative("""The runner must return a result of test, so
+those tests check if passed and failed test generate the right result.
+""")
+@Title("Integrated tests for SimpleTestRunner with TestCommandFactory and test examples")
+class IntegratedSimpleTestRunnerSpec extends Specification {
+    def "The real test has been run."() {
+        given: "I have a factory"
+        def factory = new TestCommandFactory();
+
+        and: "I have a testCommand created from a test object"
+        def test = factory.create(testObject)
+
+        and: "I have a test runner"
+        @Subject
+        def runner = new SimpleTestRunner(test)
+
+        when: "The testCommand has been run"
+        def result = runner.run()
+
+        then: "Checking that the test result is expected"
+        result == expectedResult
+
+        where: "Possible variants of tests"
+        testObject                       || expectedResult
+        new SimpleThenTest()             || true
+        new SimpleGivenWhenThenTest()    || true
+        new SimpleThenTestWithoutTitle() || true
+        new SimpleFailedThenTest()       || false
+    }
+}

src/test/groovy/space/kklochko/simple_jbdd/tests/runners/SimpleTestRunnerSpec.groovy

@@ -0,0 +1,47 @@
+package space.kklochko.simple_jbdd.tests.runners
+
+import space.kklochko.simple_jbdd.tests.commands.SimpleTestCommand
+import space.kklochko.simple_jbdd.tests.factories.TestCommandFactory
+import spock.lang.Narrative
+import spock.lang.Specification
+import spock.lang.Subject
+import spock.lang.Title
+
+@Narrative("""The runner must return a result of test, so
+those tests check if passed and failed test generate the right result.
+""")
+@Title("Unit tests for SimpleTestRunner")
+class SimpleTestRunnerSpec extends Specification {
+    def "The test with then has been passed."() {
+        given: "I have a testCommand"
+        def test = Stub(SimpleTestCommand)
+        test.test() >>> [true]
+
+        and: "I have a test runner"
+        @Subject
+        def runner = new SimpleTestRunner(test)
+
+        when: "The testCommand has been run"
+        def result = runner.run()
+
+        then: "The result is true"
+        result
+    }
+
+    def "The test with then that has not been passed."() {
+        given: "I have a failed testCommand"
+        def test = Stub(SimpleTestCommand)
+        test.test() >> { assert 1 == 0 }
+
+        and: "I have a test runner"
+        @Subject
+        def runner = new SimpleTestRunner(test)
+
+        when: "The testCommand has been run"
+        def result = runner.run()
+
+        then: "The result is false"
+        !result
+    }
+}
+