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/*
* 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
* @bug 8149170
* @summary Test native functions return booleans as 0/1 but differently than java functions
* @modules java.base/jdk.internal.misc
* @library /test/lib
* @compile BoolConstructor.java
* @run main/native NativeSmallIntCallsTest
*/
// This test shows that returns from native calls for boolean truncate to JNI_TRUE if value != 0
// and JNI_FALSE if value returned is 0.
import jdk.test.lib.Asserts;
public class NativeSmallIntCallsTest {
static native boolean nativeCastToBoolCallTrue();
static native boolean nativeCastToBoolCallFalse();
static native boolean nativeCallBoolConstructor(int visible, boolean expected);
static {
System.loadLibrary("NativeSmallIntCalls");
}
public static void main(java.lang.String[] unused) throws Exception {
// Call through jni
// JNI makes all results != 0 true for compatibility
boolean nativeTrueVal = nativeCastToBoolCallTrue();
Asserts.assertTrue(nativeTrueVal, "trueval is false!");
boolean nativeFalseVal = nativeCastToBoolCallFalse();
Asserts.assertTrue(nativeFalseVal, "falseval is false in native!");
// Call a constructor or method that passes jboolean values into Java from native
nativeCallBoolConstructor(1, true);
nativeCallBoolConstructor(0x10, true);
nativeCallBoolConstructor(0x100, false);
nativeCallBoolConstructor(0x1000, false);
}
}
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