Mock test

test/Praktikum02/ExecutorTest.java

@@ -0,0 +1,32 @@
+package Praktikum02;
+
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.*;
+import static org.mockito.Mockito.*;
+
+class ExecutorTest {
+
+    @Test
+    void printHelloWorldOnStdOut() {
+        IHelloWorldWriter outMock = mock(OutWriter.class);
+        IHelloWorldWriter errMock = mock(ErrorWriter.class);
+
+        Executor.printHellowWorld(outMock, errMock ,false);
+
+        verify(outMock,times(1)).writeHelloWorld();
+        verify(errMock,times(0)).writeHelloWorld();
+
+    }
+    @Test
+    void printHelloWorldOnErrorOut() {
+        IHelloWorldWriter outMock = mock(OutWriter.class);
+        IHelloWorldWriter errMock = mock(ErrorWriter.class);
+
+        Executor.printHellowWorld(outMock, errMock ,true);
+
+        verify(outMock,times(0)).writeHelloWorld();
+        verify(errMock,times(1)).writeHelloWorld();
+
+    }
+}