JUnit5 test classes and methods should have default package visibility

testing-modules/junit5-migration/src/test/java/com/baeldung/junit5vsjunit4assertions/Junit5AssertionsUnitTest.java

@@ -32,11 +32,11 @@ import org.junit.jupiter.api.Test;
  * Unit test that demonstrate the different assertions available within JUnit 4
  */
 @DisplayName("Test case for assertions")
-public class Junit5AssertionsUnitTest {
+class Junit5AssertionsUnitTest {
 
     @Test
     @DisplayName("Arrays should be equals")
-    public void whenAssertingArraysEquality_thenEqual() {
+    void whenAssertingArraysEquality_thenEqual() {
         char[] expected = {'J', 'u', 'p', 'i', 't', 'e', 'r'};
         char[] actual = "Jupiter".toCharArray();
 
@@ -45,7 +45,7 @@ public class Junit5AssertionsUnitTest {
 
     @Test
     @DisplayName("The area of two polygons should be equal")
-    public void whenAssertingEquality_thenEqual() {
+    void whenAssertingEquality_thenEqual() {
         float square = 2 * 2;
         float rectangle = 2 * 2;
 
@@ -53,7 +53,7 @@ public class Junit5AssertionsUnitTest {
     }
 
     @Test
-    public void whenAssertingEqualityWithDelta_thenEqual() {
+    void whenAssertingEqualityWithDelta_thenEqual() {
         float square = 2 * 2;
         float rectangle = 3 * 2;
         float delta = 2;
@@ -62,27 +62,27 @@ public class Junit5AssertionsUnitTest {
     }
 
     @Test
-    public void whenAssertingConditions_thenVerified() {
+    void whenAssertingConditions_thenVerified() {
         assertTrue(5 > 4, "5 is greater the 4");
         assertTrue(null == null, "null is equal to null");
     }
 
     @Test
-    public void whenAssertingNull_thenTrue() {
+    void whenAssertingNull_thenTrue() {
         Object cat = null;
 
         assertNull(cat, () -> "The cat should be null");
     }
 
     @Test
-    public void whenAssertingNotNull_thenTrue() {
+    void whenAssertingNotNull_thenTrue() {
         Object dog = new Object();
 
         assertNotNull(dog, () -> "The dog should not be null");
     }
 
     @Test
-    public void whenAssertingSameObject_thenSuccessfull() {
+    void whenAssertingSameObject_thenSuccessfull() {
         String language = "Java";
         Optional<String> optional = Optional.of(language);
 
@@ -90,7 +90,7 @@ public class Junit5AssertionsUnitTest {
     }
 
     @Test
-    public void givenBooleanSupplier_whenAssertingCondition_thenVerified() {
+    void givenBooleanSupplier_whenAssertingCondition_thenVerified() {
         BooleanSupplier condition = () -> 5 > 6;
 
         assertFalse(condition, "5 is not greater then 6");
@@ -98,13 +98,13 @@ public class Junit5AssertionsUnitTest {
 
     @Test
     @Disabled
-    public void whenFailingATest_thenFailed() {
+    void whenFailingATest_thenFailed() {
         // Test not completed
         fail("FAIL - test not completed");
     }
 
     @Test
-    public void givenMultipleAssertion_whenAssertingAll_thenOK() {
+    void givenMultipleAssertion_whenAssertingAll_thenOK() {
         Object obj = null;
         assertAll(
            "heading",
@@ -115,7 +115,7 @@ public class Junit5AssertionsUnitTest {
     }
 
     @Test
-    public void givenTwoLists_whenAssertingIterables_thenEquals() {
+    void givenTwoLists_whenAssertingIterables_thenEquals() {
         Iterable<String> al = new ArrayList<>(asList("Java", "Junit", "Test"));
         Iterable<String> ll = new LinkedList<>(asList("Java", "Junit", "Test"));
 
@@ -123,7 +123,7 @@ public class Junit5AssertionsUnitTest {
     }
 
     @Test
-    public void whenAssertingTimeout_thenNotExceeded() {
+    void whenAssertingTimeout_thenNotExceeded() {
         assertTimeout(
           ofSeconds(2),
           () -> {
@@ -134,7 +134,7 @@ public class Junit5AssertionsUnitTest {
     }
 
     @Test
-    public void whenAssertingTimeoutPreemptively_thenNotExceeded() {
+    void whenAssertingTimeoutPreemptively_thenNotExceeded() {
         assertTimeoutPreemptively(
           ofSeconds(2),
           () -> {
@@ -145,14 +145,14 @@ public class Junit5AssertionsUnitTest {
     }
 
     @Test
-    public void whenAssertingEquality_thenNotEqual() {
+    void whenAssertingEquality_thenNotEqual() {
         Integer value = 5; // result of an algorithm
 
         assertNotEquals(0, value, "The result cannot be 0");
     }
 
     @Test
-    public void whenAssertingEqualityListOfStrings_thenEqual() {
+    void whenAssertingEqualityListOfStrings_thenEqual() {
         List<String> expected = asList("Java", "\\d+", "JUnit");
         List<String> actual = asList("Java", "11", "JUnit");
 
@@ -171,7 +171,7 @@ public class Junit5AssertionsUnitTest {
     }
 
     @Test
-    public void testConvertToDoubleThrowException() {
+    void testConvertToDoubleThrowException() {
         String age = "eighteen";
         assertThrows(NumberFormatException.class, () -> {
             convertToInt(age);