Initial commit for BAEL-1515

testing-modules/testing/src/test/java/com/baeldung/testing/assertj/custom/AssertJCarAssertUnitTest.java

@@ -0,0 +1,20 @@
+package com.baeldung.testing.assertj.custom;
+
+import static com.baeldung.testing.assertj.custom.CarAssert.assertThat;
+
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.rules.ExpectedException;
+
+public class AssertJCarAssertUnitTest {
+    @Rule
+    public ExpectedException thrown = ExpectedException.none();
+
+    @Test
+    public void whenCarTypeDoesNotMatch_thenIncorrect() {
+        thrown.expect(AssertionError.class);
+        thrown.expectMessage("Expected type SUV but was Sedan");
+        Car car = new Car("Sedan");
+        assertThat(car).hasType("SUV");
+    }
+}

testing-modules/testing/src/test/java/com/baeldung/testing/assertj/custom/AssertJCustomAssertionsUnitTest.java

@@ -0,0 +1,29 @@
+package com.baeldung.testing.assertj.custom;
+
+import static com.baeldung.testing.assertj.custom.Assertions.assertThat;
+
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.rules.ExpectedException;
+
+public class AssertJCustomAssertionsUnitTest {
+    @Rule
+    public ExpectedException thrown = ExpectedException.none();
+    
+    @Test
+    public void whenPersonDoesNotHaveAMatchingNickname_thenIncorrect() {
+        thrown.expect(AssertionError.class);
+        thrown.expectMessage("Expected nickname John but did not have");
+        Person person = new Person("John Doe", 20);
+        person.addNickname("Nick");
+        assertThat(person).hasNickname("John");
+    }
+
+    @Test
+    public void whenCarIsUsed_thenCorrect() {
+        Person person = new Person("Jane Roe", 16);
+        Car car = new Car("SUV");
+        car.setOwner(person);
+        assertThat(car).isUsed();
+    }
+}

testing-modules/testing/src/test/java/com/baeldung/testing/assertj/custom/AssertJPersonAssertUnitTest.java

@@ -0,0 +1,26 @@
+package com.baeldung.testing.assertj.custom;
+
+import static com.baeldung.testing.assertj.custom.PersonAssert.assertThat;
+
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.rules.ExpectedException;
+
+public class AssertJPersonAssertUnitTest {
+    @Rule
+    public ExpectedException thrown = ExpectedException.none();
+
+    @Test
+    public void whenPersonNameMatches_thenCorrect() {
+        Person person = new Person("John Doe", 20);
+        assertThat(person).hasFullName("John Doe");
+    }
+
+    @Test
+    public void whenPersonAgeLessThanEighteen_thenNotAdult() {
+        thrown.expect(AssertionError.class);
+        thrown.expectMessage("Expected adult but was juvenile");
+        Person person = new Person("Jane Roe", 16);
+        assertThat(person).isAdult();
+    }
+}