From 38f4cf3464f510827963c59e84b8e1756c1cce43 Mon Sep 17 00:00:00 2001
From: KKlochko <KKlochko@protonmail.com>
Date: Sat, 30 Sep 2023 21:25:37 +0300
Subject: [PATCH] Add the NameClassLoader.

---
 .../loaders/AbstractNameClassLoader.java      |  8 ++++++
 .../tests/loaders/NameClassLoader.java        | 28 +++++++++++++++++++
 .../loaders/IntegratedNameClassLoader.groovy  | 25 +++++++++++++++++
 3 files changed, 61 insertions(+)
 create mode 100644 src/main/java/space/kklochko/simple_jbdd/tests/loaders/AbstractNameClassLoader.java
 create mode 100644 src/main/java/space/kklochko/simple_jbdd/tests/loaders/NameClassLoader.java
 create mode 100644 src/test/groovy/space/kklochko/simple_jbdd/tests/loaders/IntegratedNameClassLoader.groovy

diff --git a/src/main/java/space/kklochko/simple_jbdd/tests/loaders/AbstractNameClassLoader.java b/src/main/java/space/kklochko/simple_jbdd/tests/loaders/AbstractNameClassLoader.java
new file mode 100644
index 0000000..9103306
--- /dev/null
+++ b/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();
+}
+
diff --git a/src/main/java/space/kklochko/simple_jbdd/tests/loaders/NameClassLoader.java b/src/main/java/space/kklochko/simple_jbdd/tests/loaders/NameClassLoader.java
new file mode 100644
index 0000000..cba6b15
--- /dev/null
+++ b/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;
+        }
+    }
+}
+
diff --git a/src/test/groovy/space/kklochko/simple_jbdd/tests/loaders/IntegratedNameClassLoader.groovy b/src/test/groovy/space/kklochko/simple_jbdd/tests/loaders/IntegratedNameClassLoader.groovy
new file mode 100644
index 0000000..4f9111d
--- /dev/null
+++ b/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 has been run."() {
+        given: "I have a class loader"
+        @Subject
+        def loader = new NameClassLoader();
+
+        when: "The class names ware loaded"
+        def classNames = loader.load()
+
+        then: "Checking that the test result is expected"
+        3 == classNames.size()
+    }
+}
+