remove file extensions

2020-11-25 00:03:34 +01:00
parent 641f7759b7
commit 4c06b8ec5e
2 changed files with 86 additions and 0 deletions
--- a/core-java-modules/core-java-io-3/src/test/java/com/baeldung/filenamewithoutextension/FileNameDelExtensionUnitTest.java
+++ b/core-java-modules/core-java-io-3/src/test/java/com/baeldung/filenamewithoutextension/FileNameDelExtensionUnitTest.java
@@ -0,0 +1,72 @@
+package com.baeldung.filenamewithoutextension;
+
+import com.google.common.io.Files;
+import org.apache.commons.io.FilenameUtils;
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotEquals;
+
+public class FileNameDelExtensionUnitTest {
+
+    @Test
+    public void givenDotFileWithoutExt_whenCallGuavaMethod_thenCannotGetDesiredResult() {
+        //negative assertion
+        assertNotEquals(".baeldung", Files.getNameWithoutExtension(".baeldung"));
+    }
+
+    @Test
+    public void givenFileWithoutMultipleExt_whenCallGuavaMethod_thenCannotRemoveAllExtensions() {
+        //negative assertion
+        assertNotEquals("baeldung", Files.getNameWithoutExtension("baeldung.tar.gz"));
+    }
+
+    @Test
+    public void givenDotFileWithoutExt_whenCallApacheCommonsMethod_thenCannotGetDesiredResult() {
+        //negative assertion
+        assertNotEquals(".baeldung", FilenameUtils.removeExtension(".baeldung"));
+    }
+
+    @Test
+    public void givenFileWithoutMultipleExt_whenCallApacheCommonsMethod_thenCannotRemoveAllExtensions() {
+        //negative assertion
+        assertNotEquals("baeldung", FilenameUtils.removeExtension("baeldung.tar.gz"));
+    }
+
+    @Test
+    public void givenFilenameNoExt_whenCallFilenameUtilMethod_thenGetExpectedFilename() {
+        assertEquals("baeldung", MyFilenameUtil.removeFileExtension("baeldung", true));
+        assertEquals("baeldung", MyFilenameUtil.removeFileExtension("baeldung", false));
+    }
+
+    @Test
+    public void givenSingleExt_whenCallFilenameUtilMethod_thenGetExpectedFilename() {
+        assertEquals("baeldung", MyFilenameUtil.removeFileExtension("baeldung.txt", true));
+        assertEquals("baeldung", MyFilenameUtil.removeFileExtension("baeldung.txt", false));
+    }
+
+
+    @Test
+    public void givenDotFile_whenCallFilenameUtilMethod_thenGetExpectedFilename() {
+        assertEquals(".baeldung", MyFilenameUtil.removeFileExtension(".baeldung", true));
+        assertEquals(".baeldung", MyFilenameUtil.removeFileExtension(".baeldung", false));
+    }
+
+    @Test
+    public void givenDotFileWithExt_whenCallFilenameUtilMethod_thenGetExpectedFilename() {
+        assertEquals(".baeldung", MyFilenameUtil.removeFileExtension(".baeldung.conf", true));
+        assertEquals(".baeldung", MyFilenameUtil.removeFileExtension(".baeldung.conf", false));
+    }
+
+    @Test
+    public void givenDoubleExt_whenCallFilenameUtilMethod_thenGetExpectedFilename() {
+        assertEquals("baeldung", MyFilenameUtil.removeFileExtension("baeldung.tar.gz", true));
+        assertEquals("baeldung.tar", MyFilenameUtil.removeFileExtension("baeldung.tar.gz", false));
+    }
+
+    @Test
+    public void givenDotFileWithDoubleExt_whenCallFilenameUtilMethod_thenGetExpectedFilename() {
+        assertEquals(".baeldung", MyFilenameUtil.removeFileExtension(".baeldung.conf.bak", true));
+        assertEquals(".baeldung.conf", MyFilenameUtil.removeFileExtension(".baeldung.conf.bak", false));
+    }
+}