[BAEL-6284_tmpDir] add tests for the cleanup option (#13752)

testing-modules/junit-5-basics/src/test/java/com/baeldung/extensions/tempdir/TemporaryDirectoryWithCleanupUnitTest.java

@@ -0,0 +1,36 @@
+package com.baeldung.extensions.tempdir;
+
+import org.junit.jupiter.api.MethodOrderer;
+import org.junit.jupiter.api.Order;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.TestInstance;
+import org.junit.jupiter.api.TestMethodOrder;
+import org.junit.jupiter.api.io.TempDir;
+
+import java.nio.file.Path;
+
+import static org.junit.Assert.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.junit.jupiter.api.io.CleanupMode.NEVER;
+
+@TestMethodOrder(MethodOrderer.OrderAnnotation.class)
+@TestInstance(TestInstance.Lifecycle.PER_CLASS)
+class TemporaryDirectoryWithCleanupUnitTest {
+
+    private Path theTempDirToBeChecked = null;
+
+    @Test
+    @Order(1)
+    void whenTestMethodWithTempDirNeverCleanup_thenSetInstanceVariable(@TempDir(cleanup = NEVER) Path tempDir) {
+        theTempDirToBeChecked = tempDir;
+        System.out.println(tempDir.toFile().getAbsolutePath());
+    }
+
+    @Test
+    @Order(2)
+    void whenTestMethodWithTempDirNeverCleanup_thenTempDirShouldNotBeRemoved() {
+        assertNotNull(theTempDirToBeChecked);
+        assertTrue(theTempDirToBeChecked.toFile().isDirectory());
+    }
+
+}