Add the ClassLoader.

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/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) })
+    }
+}
+