| /* |
| * Copyright (c) 2016, 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 |
| * @requires os.family == "linux" & vm.bits == "64" & os.arch == "amd64" |
| * @modules jdk.aot/jdk.tools.jaotc.utils |
| * @run junit/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI jdk.tools.jaotc.test.NativeOrderOutputStreamTest |
| */ |
| |
| package jdk.tools.jaotc.test; |
| |
| import jdk.tools.jaotc.utils.NativeOrderOutputStream; |
| import org.junit.Assert; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| import java.nio.ByteBuffer; |
| import java.nio.ByteOrder; |
| |
| public class NativeOrderOutputStreamTest { |
| |
| private NativeOrderOutputStream target; |
| |
| @Before |
| public void setup() { |
| target = new NativeOrderOutputStream(); |
| } |
| |
| @Test |
| public void shouldAdd4BytesForInt() { |
| target.putInt(5); |
| Assert.assertEquals(4, target.position()); |
| } |
| |
| @Test |
| public void shouldAdd8BytesForLong() { |
| target.putLong(8); |
| Assert.assertEquals(8, target.position()); |
| } |
| |
| @Test |
| public void shouldHaveCorrectSizeBeforePatch() { |
| target.patchableInt(); |
| Assert.assertEquals(4, target.position()); |
| } |
| |
| @Test |
| public void shouldHaveCorrectSizeAfterPatch() { |
| NativeOrderOutputStream.PatchableInt patchableInt = target.patchableInt(); |
| patchableInt.set(12); |
| Assert.assertEquals(4, target.position()); |
| } |
| |
| @Test |
| public void shouldSetCorrectValueInPatch() { |
| NativeOrderOutputStream.PatchableInt patchableInt = target.patchableInt(); |
| patchableInt.set(42); |
| Assert.assertEquals(42, getInt(0)); |
| } |
| |
| private int getInt(int pos) { |
| ByteBuffer buffer = ByteBuffer.wrap(target.array()); |
| buffer.order(ByteOrder.nativeOrder()); |
| return buffer.getInt(pos); |
| } |
| |
| @Test |
| public void shouldPutArrayCorrectly() { |
| target.put(new byte[]{42, 5, 43, 44}); |
| Assert.assertEquals(4, target.position()); |
| Assert.assertEquals(42, target.array()[0]); |
| Assert.assertEquals(4, target.position()); |
| } |
| |
| @Test |
| public void shouldOnlyPatchSlot() { |
| NativeOrderOutputStream.PatchableInt patchableInt = target.patchableInt(); |
| target.putInt(7); |
| patchableInt.set(39); |
| Assert.assertEquals(39, getInt(0)); |
| Assert.assertEquals(7, getInt(4)); |
| } |
| |
| @Test |
| public void shouldBeAbleToPatchAnywhere() { |
| target.putInt(19); |
| NativeOrderOutputStream.PatchableInt patchableInt = target.patchableInt(); |
| patchableInt.set(242); |
| |
| Assert.assertEquals(19, getInt(0)); |
| Assert.assertEquals(242, getInt(4)); |
| } |
| |
| @Test |
| public void shouldHavePatchableAtRightOffset() { |
| target.putInt(27); |
| Assert.assertEquals(4, target.position()); |
| NativeOrderOutputStream.PatchableInt patchableInt = target.patchableInt(); |
| Assert.assertEquals(4, patchableInt.position()); |
| } |
| |
| @Test |
| public void shouldAlign() { |
| target.putInt(9); |
| target.align(16); |
| target.put(new byte[]{3}); |
| target.align(8); |
| Assert.assertEquals(24, target.position()); |
| } |
| } |