Merge pull request #12114 from Alex-Golub/study/test-order

The Order of Tests in JUnit

testing-modules/junit-5/src/test/java/com/baeldung/junit5/order/AlphanumericOrderUnitTest.java

@@ -1,33 +1,34 @@
 package com.baeldung.junit5.order;
 
-import static org.junit.Assert.assertEquals;
-
 import org.junit.jupiter.api.AfterAll;
 import org.junit.jupiter.api.MethodOrderer;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.TestMethodOrder;
 
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
 @TestMethodOrder(MethodOrderer.MethodName.class)
 public class AlphanumericOrderUnitTest {
-    private static StringBuilder output = new StringBuilder("");
+
+    private static final StringBuilder output = new StringBuilder("");
 
     @Test
-    public void myATest() {
+    void myATest() {
         output.append("A");
     }
 
     @Test
-    public void myBTest() {
+    void myBTest() {
         output.append("B");
     }
 
     @Test
-    public void myaTest() {
+    void myaTest() {
         output.append("a");
     }
 
     @AfterAll
     public static void assertOutput() {
-        assertEquals(output.toString(), "ABa");
+        assertEquals("ABa", output.toString());
     }
 }

testing-modules/junit-5/src/test/java/com/baeldung/junit5/order/CustomOrderUnitTest.java

@@ -1,33 +1,33 @@
 package com.baeldung.junit5.order;
 
-import static org.junit.Assert.assertEquals;
-
 import org.junit.jupiter.api.AfterAll;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.TestMethodOrder;
 
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
 @TestMethodOrder(CustomOrder.class)
 public class CustomOrderUnitTest {
-    private static StringBuilder output = new StringBuilder("");
-    
+
+    private static final StringBuilder output = new StringBuilder("");
+
     @Test
-    public void myATest() {
+    void myATest() {
         output.append("A");
     }
-    
+
     @Test
-    public void myBTest() {
-        output.append("B");        
+    void myBTest() {
+        output.append("B");
     }
-    
+
     @Test
-    public void myaTest() {
+    void myaTest() {
         output.append("a");
     }
 
- 
     @AfterAll
     public static void assertOutput() {
-        assertEquals(output.toString(), "AaB");
+        assertEquals("AaB", output.toString());
     }
 }

testing-modules/junit-5/src/test/java/com/baeldung/junit5/order/DefaultOrderUnitTest.java

@@ -1,36 +1,36 @@
 package com.baeldung.junit5.order;
 
-import static org.junit.Assert.assertEquals;
-
 import org.junit.jupiter.api.AfterAll;
 import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Test;
 
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
 public class DefaultOrderUnitTest {
 
-    private static StringBuilder output = new StringBuilder("");
+    private static final StringBuilder output = new StringBuilder();
 
     @Test
     @DisplayName("Test A")
-    public void myATest() {
+    void myATest() {
         output.append("A");
     }
 
     @Test
     @DisplayName("Test B")
-    public void myBTest() {
+    void myBTest() {
         output.append("B");
     }
 
     @Test
     @DisplayName("Test C")
-    public void myCTest() {
+    void myCTest() {
         output.append("C");
     }
 
     @AfterAll
     public static void assertOutput() {
-        assertEquals(output.toString(), "ABC");
+        assertEquals("ABC", output.toString());
     }
 
 }

testing-modules/junit-5/src/test/java/com/baeldung/junit5/order/OrderAnnotationUnitTest.java

@@ -1,37 +1,35 @@
 package com.baeldung.junit5.order;
 
-import static org.junit.Assert.assertEquals;
-
-import org.junit.jupiter.api.AfterAll;
+import org.junit.jupiter.api.*;
 import org.junit.jupiter.api.MethodOrderer.OrderAnnotation;
-import org.junit.jupiter.api.Order;
-import org.junit.jupiter.api.Test;
-import org.junit.jupiter.api.TestMethodOrder;
+
+import static org.junit.jupiter.api.Assertions.*;
 
 @TestMethodOrder(OrderAnnotation.class)
 public class OrderAnnotationUnitTest {
-    private static StringBuilder output = new StringBuilder("");
-    
+
+    private static final StringBuilder output = new StringBuilder();
+
     @Test
-    @Order(1)    
-    public void firstTest() {
+    @Order(1)
+    void firstTest() {
         output.append("a");
     }
-    
+
     @Test
-    @Order(2)    
-    public void secondTest() {
+    @Order(2)
+    void secondTest() {
         output.append("b");
     }
- 
+
     @Test
-    @Order(3)    
-    public void thirdTest() {
+    @Order(3)
+    void thirdTest() {
         output.append("c");
     }
- 
+
     @AfterAll
     public static void assertOutput() {
-        assertEquals(output.toString(), "abc");
+        assertEquals("abc", output.toString());
     }
 }

testing-modules/junit-5/src/test/java/com/baeldung/junit5/order/RandomOrderUnitTest.java

@@ -1,35 +1,35 @@
 package com.baeldung.junit5.order;
 
-import static org.junit.Assert.assertEquals;
-
 import org.junit.jupiter.api.AfterAll;
 import org.junit.jupiter.api.MethodOrderer;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.TestMethodOrder;
 
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
 @TestMethodOrder(MethodOrderer.Random.class)
 public class RandomOrderUnitTest {
 
-    private static StringBuilder output = new StringBuilder("");
+    private static final StringBuilder output = new StringBuilder();
 
     @Test
-    public void myATest() {
+    void myATest() {
         output.append("A");
     }
 
     @Test
-    public void myBTest() {
+    void myBTest() {
         output.append("B");
     }
 
     @Test
-    public void myCTest() {
+    void myCTest() {
         output.append("C");
     }
 
     @AfterAll
     public static void assertOutput() {
-        assertEquals(output.toString(), "ACB");
+        assertEquals("ACB", output.toString());
     }
 
 }