From e8b07fea1dc1b44fcb904c3d0d33ae27ffd4ecd3 Mon Sep 17 00:00:00 2001
From: Ganesh Pagade <ganesh.pagade@tesco.com>
Date: Sun, 23 Dec 2018 12:05:51 +0530
Subject: [PATCH] unit tests for nest based access control

---
 .../src/main/java/com/baeldung/Outer.java     | 24 +++++++++
 .../test/java/com/baeldung/OuterUnitTest.java | 50 +++++++++++++++++++
 2 files changed, 74 insertions(+)
 create mode 100644 core-java-11/src/main/java/com/baeldung/Outer.java
 create mode 100644 core-java-11/src/test/java/com/baeldung/OuterUnitTest.java

diff --git a/core-java-11/src/main/java/com/baeldung/Outer.java b/core-java-11/src/main/java/com/baeldung/Outer.java
new file mode 100644
index 0000000000..e2f1479ab1
--- /dev/null
+++ b/core-java-11/src/main/java/com/baeldung/Outer.java
@@ -0,0 +1,24 @@
+package com.baeldung;
+
+import java.lang.reflect.Method;
+
+public class Outer {
+
+  public void outerPublic() {
+  }
+
+  private void outerPrivate() {
+  }
+
+  class Inner {
+
+    public void innerPublic() {
+      outerPrivate();
+    }
+
+  	public void innerPublicReflection(Outer ob) throws Exception {
+      Method method = ob.getClass().getDeclaredMethod("outerPrivate");
+      method.invoke(ob);
+  	}
+  }
+}
\ No newline at end of file
diff --git a/core-java-11/src/test/java/com/baeldung/OuterUnitTest.java b/core-java-11/src/test/java/com/baeldung/OuterUnitTest.java
new file mode 100644
index 0000000000..a954416f68
--- /dev/null
+++ b/core-java-11/src/test/java/com/baeldung/OuterUnitTest.java
@@ -0,0 +1,50 @@
+package com.baeldung;
+
+import static org.hamcrest.CoreMatchers.is;
+
+import java.util.Arrays;
+import java.util.List;
+import java.util.stream.Collectors;
+import org.junit.Test;
+
+public class OuterUnitTest {
+
+  private static final String NEST_HOST_NAME = "com.baeldung.Outer";
+
+  @Test
+  public void whenGetNestHostFromOuter_thenGetNestHost() {
+    is(Outer.class.getNestHost().getName()).equals(NEST_HOST_NAME);
+  }
+
+  @Test
+  public void whenGetNestHostFromInner_thenGetNestHost() {
+    is(Outer.Inner.class.getNestHost().getName()).equals(NEST_HOST_NAME);
+  }
+
+  @Test
+  public void whenCheckNestmatesForNestedClasses_thenGetTrue() {
+    is(Outer.Inner.class.isNestmateOf(Outer.class)).equals(true);
+  }
+
+  @Test
+  public void whenCheckNestmatesForUnrelatedClasses_thenGetFalse() {
+    is(Outer.Inner.class.isNestmateOf(Outer.class)).equals(false);
+  }
+
+  @Test
+  public void whenGetNestMembersForNestedClasses_thenGetAllNestedClasses() {
+    List<String> nestMembers = Arrays.stream(Outer.Inner.class.getNestMembers())
+        .map(Class::getName)
+        .collect(Collectors.toList());
+
+    is(nestMembers.size()).equals(2);
+
+    boolean containsOuter = nestMembers.stream()
+        .anyMatch("com.baeldung.Outer"::equals);
+    is(containsOuter).equals(true);
+
+    boolean containsInner = nestMembers.stream()
+        .anyMatch("com.baeldung.Outer$Inner"::equals);
+    is(containsInner).equals(true);
+  }
+}
\ No newline at end of file