BAEL-6587 Code for the Mockito Exception article

testing-modules/mockito-2/src/test/java/com/baeldung/wantedbutnotinvocked/MainUnitTest.java

@@ -0,0 +1,38 @@
+package com.baeldung.wantedbutnotinvocked;
+
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.mockito.InjectMocks;
+import org.mockito.Mock;
+import org.mockito.Mockito;
+import org.mockito.MockitoAnnotations;
+
+class MainUnitTest {
+
+    @Mock
+    Helper helper;
+
+    @InjectMocks
+    Main main = new Main();
+
+    @BeforeEach
+    void setUp() {
+        MockitoAnnotations.openMocks(this);
+    }
+
+    @Test
+    void givenValueUpperThan5_WhenMethodUnderTest_ThenDelegatesToHelperClass() {
+        main.methodUnderTest(7);
+        Mockito.verify(helper)
+          .getBaeldungString();
+    }
+
+    // Uncomment the next line to see the error
+    // @Test
+    void givenValueLowerThan5_WhenMethodUnderTest_ThenDelegatesToGetBaeldungString() {
+        main.methodUnderTest(3);
+        Mockito.verify(helper)
+          .getBaeldungString();
+    }
+
+}