Add Response unit tests

culminating-mastermind/app/src/test/java/mastermind/ResponseTest.java

@@ -0,0 +1,95 @@
+package mastermind;
+
+import mastermind.core.Code;
+import mastermind.core.Response;
+import org.junit.jupiter.api.Test;
+
+import java.util.List;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+class ResponseTest {
+    @Test
+    void guessAllCorrect() {
+        final Code code = new Code(List.of(0, 0, 0, 0));
+        final Code guess = new Code(List.of(0, 0, 0, 0));
+        final Response response = new Response(code, guess);
+        final int expectedCorrectCount = 4;
+        final int expectedMisplacementCount = 0;
+
+        assertEquals(expectedCorrectCount, response.getResponse().first);
+        assertEquals(expectedMisplacementCount, response.getResponse().second);
+    }
+
+    @Test
+    void guessPartialCorrectNoMisplacement() {
+        final Code code = new Code(List.of(0, 1, 2, 3));
+        final Code guess = new Code(List.of(0, 1, 4, 5));
+        final Response response = new Response(code, guess);
+        final int expectedCorrectCount = 2;
+        final int expectedMisplacementCount = 0;
+
+        assertEquals(expectedCorrectCount, response.getResponse().first);
+        assertEquals(expectedMisplacementCount, response.getResponse().second);
+    }
+
+    @Test
+    void guessNoCorrectNoMisplacement() {
+        final Code code = new Code(List.of(0, 0, 0, 0));
+        final Code guess = new Code(List.of(1, 1, 1, 1));
+        final Response response = new Response(code, guess);
+        final int expectedCorrectCount = 0;
+        final int expectedMisplacementCount = 0;
+
+        assertEquals(expectedCorrectCount, response.getResponse().first);
+        assertEquals(expectedMisplacementCount, response.getResponse().second);
+    }
+
+    @Test
+    void guessPartialCorrectWithMisplacement() {
+        final Code code = new Code(List.of(0, 1, 2, 3));
+        final Code guess = new Code(List.of(0, 1, 3, 2));
+        final Response response = new Response(code, guess);
+        final int expectedCorrectCount = 2;
+        final int expectedMisplacementCount = 2;
+
+        assertEquals(expectedCorrectCount, response.getResponse().first);
+        assertEquals(expectedMisplacementCount, response.getResponse().second);
+    }
+
+    @Test
+    void guessAllMisplacement() {
+        final Code code = new Code(List.of(0, 1, 2, 3));
+        final Code guess = new Code(List.of(3, 2, 1, 0));
+        final Response response = new Response(code, guess);
+        final int expectedCorrectCount = 0;
+        final int expectedMisplacementCount = 4;
+
+        assertEquals(expectedCorrectCount, response.getResponse().first);
+        assertEquals(expectedMisplacementCount, response.getResponse().second);
+    }
+
+    @Test
+    void guessAllMisplacementWithDuplicates() {
+        final Code code = new Code(List.of(0, 1, 2, 3));
+        final Code guess = new Code(List.of(3, 3, 3, 4));
+        final Response response = new Response(code, guess);
+        final int expectedCorrectCount = 0;
+        final int expectedMisplacementCount = 1;
+
+        assertEquals(expectedCorrectCount, response.getResponse().first);
+        assertEquals(expectedMisplacementCount, response.getResponse().second);
+    }
+
+    @Test
+    void guessMisplacementIsCorrect() {
+        final Code code = new Code(List.of(0, 1, 2, 3));
+        final Code guess = new Code(List.of(0, 0, 0, 0));
+        final Response response = new Response(code, guess);
+        final int expectedCorrectCount = 1;
+        final int expectedMisplacementCount = 0;
+
+        assertEquals(expectedCorrectCount, response.getResponse().first);
+        assertEquals(expectedMisplacementCount, response.getResponse().second);
+    }
+}