Merge pull request #5439 from amit2103/BAEL-9514

[BAEL-9514] - Added Junit 5 @DisplayName annotation example

core-java/src/test/java/org/baeldung/java/customtestname/CustomNameUnitTest.java

@@ -0,0 +1,17 @@
+package org.baeldung.java.customtestname;
+
+import static org.junit.Assert.assertNotNull;
+
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.ValueSource;
+
+public class CustomNameUnitTest {
+
+    @ParameterizedTest
+    @ValueSource(strings = { "Hello", "World" })
+    @DisplayName("Test Method to check that the inputs are not nullable")
+    void givenString_TestNullOrNot(String word) {
+        assertNotNull(word);
+    }
+}

core-java/src/test/java/org/baeldung/java/parameterisedsource/ParameterizedUnitTest.java

@@ -0,0 +1,48 @@
+package org.baeldung.java.parameterisedsource;
+
+import static org.junit.Assert.assertNotEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertTrue;
+
+import java.util.EnumSet;
+import java.util.stream.Stream;
+
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.CsvSource;
+import org.junit.jupiter.params.provider.EnumSource;
+import org.junit.jupiter.params.provider.MethodSource;
+import org.junit.jupiter.params.provider.ValueSource;
+
+import com.baeldung.enums.PizzaDeliveryStrategy;
+
+public class ParameterizedUnitTest {
+
+    @ParameterizedTest
+    @ValueSource(strings = { "Hello", "World" })
+    void givenString_TestNullOrNot(String word) {
+        assertNotNull(word);
+    }
+    
+    @ParameterizedTest
+    @EnumSource(value = PizzaDeliveryStrategy.class, names = {"EXPRESS", "NORMAL"})
+    void givenEnum_TestContainsOrNot(PizzaDeliveryStrategy timeUnit) {
+        assertTrue(EnumSet.of(PizzaDeliveryStrategy.EXPRESS, PizzaDeliveryStrategy.NORMAL).contains(timeUnit));
+    }
+    
+    @ParameterizedTest
+    @MethodSource("wordDataProvider")
+    void givenMethodSource_TestInputStream(String argument) {
+        assertNotNull(argument);
+    }
+
+    static Stream<String> wordDataProvider() {
+        return Stream.of("foo", "bar");
+    }
+    
+    @ParameterizedTest
+    @CsvSource({ "1, Car", "2, House", "3, Train" })
+    void givenCSVSource_TestContent(int id, String word) {
+        assertNotNull(id);
+        assertNotNull(word);
+    }
+}

core-java/src/test/java/org/baeldung/java/suite/SelectClassesSuiteUnitTest.java

@@ -0,0 +1,13 @@
+package org.baeldung.java.suite;
+
+import org.baeldung.java.suite.childpackage1.Class1UnitTest;
+import org.baeldung.java.suite.childpackage2.Class2UnitTest;
+import org.junit.platform.runner.JUnitPlatform;
+import org.junit.platform.suite.api.SelectClasses;
+import org.junit.runner.RunWith;
+
+@RunWith(JUnitPlatform.class)
+@SelectClasses({Class1UnitTest.class, Class2UnitTest.class})
+public class SelectClassesSuiteUnitTest {
+
+}

core-java/src/test/java/org/baeldung/java/suite/SelectPackagesSuiteUnitTest.java

@@ -0,0 +1,11 @@
+package org.baeldung.java.suite;
+
+import org.junit.platform.runner.JUnitPlatform;
+import org.junit.platform.suite.api.SelectPackages;
+import org.junit.runner.RunWith;
+
+@RunWith(JUnitPlatform.class)
+@SelectPackages({ "org.baeldung.java.suite.childpackage1", "org.baeldung.java.suite.childpackage2" })
+public class SelectPackagesSuiteUnitTest {
+
+}

core-java/src/test/java/org/baeldung/java/suite/childpackage1/Class1UnitTest.java

@@ -0,0 +1,15 @@
+package org.baeldung.java.suite.childpackage1;
+
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+import org.junit.Test;
+
+
+public class Class1UnitTest {
+
+    @Test
+    public void testCase_InClass1UnitTest() {
+        assertTrue(true);
+    }
+    
+}

core-java/src/test/java/org/baeldung/java/suite/childpackage2/Class2UnitTest.java

@@ -0,0 +1,14 @@
+package org.baeldung.java.suite.childpackage2;
+
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+import org.junit.Test;
+
+public class Class2UnitTest {
+
+    @Test
+    public void testCase_InClass2UnitTest() {
+        assertTrue(true);
+    }
+    
+}