BAEL-3227

core-java-modules/core-java/src/test/java/com/baeldung/files/CreatingFilesTest.java

@@ -0,0 +1,29 @@
+import com.google.common.io.Files;
+import org.junit.Test;
+
+import java.io.File;
+import java.io.IOException;
+
+public class CreateFilesTest {
+    @Test(expected = IOException.class)
+    public void whenCreatingAFileWithAbsolutePath_thenExceptionIsThrown() throws IOException {
+        File fileWithAbsolutePath = new File("/myDirectory/testFile.txt");
+
+        Files.touch(fileWithAbsolutePath);
+    }
+
+    @Test(expected = IOException.class)
+    public void givenAnExistingDirectory_whenCreatingANewDirectoryAndFile_thenExceptionIsThrown() throws IOException {
+        File tempDirectory = new File(System.getProperty("java.io.tmpdir"));
+        File fileWithRelativePath = new File(tempDirectory, "myDirectory/newFile.txt");
+
+        Files.touch(fileWithRelativePath);
+    }
+
+    @Test(expected = IOException.class)
+    public void whenCreatingAFileWithFileSeparator_thenPathIsCreated() throws IOException {
+        File newFile = new File("src" + File.separator + "test" + File.separator + "resources" + File.separator + "newFile.txt");
+
+        Files.touch(newFile);
+    }
+}