[BAEL-4720] Java File.separator vs File.pathSeparator (#10330)

* [BAEL-4720] Java File.separator vs File.pathSeparator Removed src code and modified junit tests * [BAEL-4720] Java File.separator vs File.pathSeparator Code formatting: Removed extra spaces in the code * [BAEL-4720] Java File.separator vs File.pathSeparator Added more junit tests * [BAEL-4720] Java File.separator vs File.pathSeparator Added new module core-java-io4 and moved the code from core-java-io3 module. Co-authored-by: MeenaGawande <MeenaGawande@users.noreply.github.com>
2021-01-06 23:36:07 +05:30
parent 0c7b0dfdf5
commit 8e7f37775c
6 changed files with 189 additions and 0 deletions
--- a/core-java-modules/core-java-io-4/src/test/java/com/baeldung/fileseparator/FilePathSeparatorUnitTest.java
+++ b/core-java-modules/core-java-io-4/src/test/java/com/baeldung/fileseparator/FilePathSeparatorUnitTest.java
@@ -0,0 +1,63 @@
+package com.baeldung.fileseparator;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+import java.io.File;
+import java.io.IOException;
+import java.util.StringJoiner;
+
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.condition.EnabledOnOs;
+import org.junit.jupiter.api.condition.OS;
+
+public class FilePathSeparatorUnitTest {
+
+    @Test
+    @EnabledOnOs(OS.WINDOWS)
+    public void whenCheckPathSeparator_thenResultIsAsExpectedOnWindows() throws IOException {
+        assertEquals(";", File.pathSeparator);
+        assertEquals(';', File.pathSeparatorChar);
+    }
+    
+    @Test
+    @EnabledOnOs({ OS.LINUX, OS.MAC })
+    public void whenCheckPathSeparator_thenResultIsAsExpected() throws IOException {
+        assertEquals(":", File.pathSeparator);
+        assertEquals(':', File.pathSeparatorChar);
+    }
+    
+    @Test
+    @EnabledOnOs(OS.WINDOWS)
+    public void whenBuildPathUsingString_thenResultIsAsExpectedOnWindows() throws IOException {
+        String[] pathNames = { "path1", "path2", "path3" };
+        String path = String.join(File.pathSeparator, pathNames);
+        assertEquals("path1;path2;path3",path);
+    }
+
+    @Test
+    @EnabledOnOs({ OS.LINUX, OS.MAC })
+    public void whenBuildPathUsingString_thenResultIsAsExpected() throws IOException {
+        String[] pathNames = { "path1", "path2", "path3" };
+        String path = String.join(File.pathSeparator, pathNames);
+        assertEquals("path1:path2:path3", path);
+    }
+
+    @Test
+    @EnabledOnOs(OS.WINDOWS)
+    public void whenbuildPathUsingStringJoiner_thenResultIsAsExpectedOnWindows() throws IOException {
+        assertEquals("path1;path2", buildPathUsingStringJoiner("path1", "path2"));
+    }
+
+    @Test
+    @EnabledOnOs({ OS.LINUX, OS.MAC })
+    public void whenbuildPathUsingStringJoiner_thenResultIsAsExpected() throws IOException {
+        assertEquals("path1:path2", buildPathUsingStringJoiner("path1", "path2"));
+    }
+    
+    private String buildPathUsingStringJoiner(String path1, String path2) {
+        StringJoiner joiner = new StringJoiner(File.pathSeparator);
+        joiner.add(path1);
+        joiner.add(path2);
+        return joiner.toString();
+    }
+}
--- a/core-java-modules/core-java-io-4/src/test/java/com/baeldung/fileseparator/FileSeparatorUnitTest.java
+++ b/core-java-modules/core-java-io-4/src/test/java/com/baeldung/fileseparator/FileSeparatorUnitTest.java
@@ -0,0 +1,63 @@
+package com.baeldung.fileseparator;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+import java.io.File;
+import java.nio.file.FileSystems;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.condition.EnabledOnOs;
+import org.junit.jupiter.api.condition.OS;
+
+public class FileSeparatorUnitTest {
+
+    @Test
+    @EnabledOnOs(OS.WINDOWS)
+    public void whenCheckFileSeparator_thenCorrectOnWindows() {
+        assertEquals("\\", File.separator);
+        assertEquals('\\', File.separatorChar);
+        
+        String fileSeparator = FileSystems.getDefault().getSeparator();
+        assertEquals("\\",fileSeparator);
+    }
+    
+    @Test
+    @EnabledOnOs({ OS.LINUX, OS.MAC })
+    public void whenCheckFileSeparator_thenCorrect() {
+        assertEquals("/", File.separator);
+        assertEquals('/', File.separatorChar);
+        
+        String fileSeparator = FileSystems.getDefault().getSeparator();
+        assertEquals("/",fileSeparator);
+    }
+    
+    @Test
+    @EnabledOnOs(OS.WINDOWS)
+    public void whenBuildFilePathUsingPathsClass_thenCorrectOnWindows() {
+        Path path = Paths.get("dir1", "dir2");
+        assertEquals("dir1\\dir2", path.toString());
+    }
+
+    @Test
+    @EnabledOnOs({ OS.LINUX, OS.MAC })
+    public void whenBuildFilePathUsingPathsClass_thenCorrect() {
+        Path path = Paths.get("dir1", "dir2");
+        assertEquals("dir1/dir2", path.toString());
+    }
+
+    @Test
+    @EnabledOnOs(OS.WINDOWS)
+    public void whenBuildFilePathUsingFileClass_thenOutputIsAsExpectedOnWindows() {
+        File file = new File("file1", "file2");
+        assertEquals("file1\\file2", file.toString());
+    }
+
+    @Test
+    @EnabledOnOs({ OS.LINUX, OS.MAC })
+    public void whenBuildFilePathUsingFileClass_thenOutputIsAsExpected() {
+        File file = new File("file1", "file2");
+        assertEquals("file1/file2", file.toString());
+    }
+}