test/jdk/java/nio/channels/FileChannel/Args.java
changeset 47216 71c04702a3d5
parent 7668 d4a77089c587
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/java/nio/channels/FileChannel/Args.java	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,104 @@
+/*
+ * Copyright (c) 2001, 2010, 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 4470017
+ * @summary Ensure that illegal arguments cause appropriate exceptions
+ *          to be thrown
+ */
+
+import java.io.*;
+import java.nio.channels.*;
+
+
+public class Args {
+
+    static void fail(String s) {
+        throw new RuntimeException(s);
+    }
+
+    static interface Thunk {
+        public void run() throws Exception;
+    }
+
+    private static void tryCatch(Class ex, Thunk thunk) {
+        boolean caught = false;
+        try {
+            thunk.run();
+        } catch (Throwable x) {
+            if (ex.isAssignableFrom(x.getClass())) {
+                caught = true;
+                System.err.println("Thrown as expected: " + x);
+            }
+        }
+        if (!caught)
+            fail(ex.getName() + " not thrown");
+    }
+
+    public static void main(String[] args) throws Exception {
+
+        File f = File.createTempFile("foo", null);
+        f.deleteOnExit();
+        final FileChannel fc = new RandomAccessFile(f, "rw").getChannel();
+
+        tryCatch(IllegalArgumentException.class, new Thunk() {
+                public void run() throws Exception {
+                    fc.transferFrom(fc, -1, 1);
+                }});
+
+        tryCatch(IllegalArgumentException.class, new Thunk() {
+                public void run() throws Exception {
+                    fc.transferFrom(fc, 0, -1);
+                }});
+
+        tryCatch(IllegalArgumentException.class, new Thunk() {
+                public void run() throws Exception {
+                    fc.transferTo(-1, 1, fc);
+                }});
+
+        tryCatch(IllegalArgumentException.class, new Thunk() {
+                public void run() throws Exception {
+                    fc.transferTo(0, -1, fc);
+                }});
+
+        tryCatch(IllegalArgumentException.class, new Thunk() {
+                public void run() throws Exception {
+                    fc.map(FileChannel.MapMode.READ_ONLY, -1, 0);
+                }});
+
+        tryCatch(IllegalArgumentException.class, new Thunk() {
+                public void run() throws Exception {
+                    fc.map(FileChannel.MapMode.READ_ONLY, 0, -1);
+                }});
+
+        tryCatch(IllegalArgumentException.class, new Thunk() {
+                public void run() throws Exception {
+                    fc.map(FileChannel.MapMode.READ_ONLY, 0,
+                           (long)Integer.MAX_VALUE << 3);
+                }});
+
+        fc.close();
+        f.delete();
+    }
+
+}