Merge pull request #7741 from kevinkraus/master

BAEL-3227

core-java-modules/core-java-io-2/src/test/java/com/baeldung/createfiles/CreateFilesUnitTest.java

@@ -0,0 +1,48 @@
+package com.baeldung.createfiles;
+
+import com.google.common.io.Files;
+import org.junit.Test;
+
+import java.io.File;
+import java.io.IOException;
+
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+
+public class CreateFilesUnitTest {
+    @Test
+    public void givenAnExistingDirectory_whenCreatingAFileWithAbsolutePath_thenFileIsCreated() throws IOException {
+        File tempDirectory = new File(System.getProperty("java.io.tmpdir"));
+        File fileWithAbsolutePath = new File(tempDirectory.getAbsolutePath() + "/myDirectory/testFile.txt");
+
+        assertFalse(fileWithAbsolutePath.exists());
+
+        Files.touch(fileWithAbsolutePath);
+
+        assertTrue(fileWithAbsolutePath.exists());
+    }
+
+    @Test
+    public void givenAnExistingDirectory_whenCreatingANewDirectoryAndFileWithRelativePath_thenFileIsCreated() throws IOException {
+        File tempDirectory = new File(System.getProperty("java.io.tmpdir"));
+        File fileWithRelativePath = new File(tempDirectory, "myDirectory/newFile.txt");
+
+        assertFalse(fileWithRelativePath.exists());
+
+        Files.touch(fileWithRelativePath);
+
+        assertTrue(fileWithRelativePath.exists());
+    }
+
+    @Test
+    public void whenCreatingAFileWithFileSeparator_thenFileIsCreated() throws IOException {
+        File tempDirectory = new File(System.getProperty("java.io.tmpdir"));
+        File newFile = new File(tempDirectory.getAbsolutePath() + File.separator + "newFile.txt");
+
+        assertFalse(newFile.exists());
+
+        Files.touch(newFile);
+
+        assertTrue(newFile.exists());
+    }
+}