test/jdk/javax/imageio/EmptyFileTest.java
changeset 47216 71c04702a3d5
parent 5506 202f599c92aa
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/javax/imageio/EmptyFileTest.java	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,69 @@
+/*
+ * Copyright (c) 2007, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/**
+ * @test
+ * @bug     6438508
+ * @summary Test verifies that ImageIO.write() does not create new
+ *          empty file if requested image format is not supported.
+ *
+ * @run     main EmptyFileTest
+ */
+
+import java.awt.image.BufferedImage;
+import java.io.File;
+import java.io.IOException;
+import javax.imageio.ImageIO;
+
+public class EmptyFileTest {
+    public static void main(String[] args) throws IOException {
+        String format = "MY_IMG";
+
+        File out = new File("output.myimg");
+
+        System.out.printf("File %s: %s\n", out.getAbsolutePath(),
+                          out.exists() ? "EXISTS" : "NEW");
+
+        BufferedImage img = createTestImage();
+
+        boolean status = false;
+        try {
+            status = ImageIO.write(img, format, out);
+        } catch (IOException e) {
+            throw new RuntimeException("Test FAILED: unexpected exception", e);
+        }
+        if (status) {
+            throw new RuntimeException("Test FAILED: Format " +
+                                       format + " is supported.");
+        }
+
+        if (out.exists()) {
+            throw new RuntimeException("Test FAILED.");
+        }
+        System.out.println("Test PASSED.");
+    }
+
+    private static BufferedImage createTestImage() {
+        return new BufferedImage(100, 100, BufferedImage.TYPE_INT_RGB);
+    }
+}