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jdk-24/test/jdk/java/lang/runtime/ExactnessConversionsSupportTest.java
Aggelos Biboudis 1733d2ea24 8303374: Implement JEP 455: Primitive Types in Patterns, instanceof, and switch (Preview) 
Co-authored-by: Jan Lahoda <jlahoda@openjdk.org>
Co-authored-by: Maurizio Cimadamore <mcimadamore@openjdk.org>
Co-authored-by: Gavin Bierman <gbierman@openjdk.org>
Co-authored-by: Brian Goetz <briangoetz@openjdk.org>
Co-authored-by: Raffaello Giulietti <rgiulietti@openjdk.org>
Co-authored-by: Aggelos Biboudis <abimpoudis@openjdk.org>
Reviewed-by: vromero, jlahoda
2024-01-31 14:18:13 +00:00

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/*
* Copyright (c) 2024, 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.
*/
import org.testng.annotations.Test;
import java.io.Serializable;
import java.lang.Enum.EnumDesc;
import java.lang.classfile.ClassFile;
import java.lang.constant.ClassDesc;
import java.lang.constant.ConstantDescs;
import java.lang.constant.MethodTypeDesc;
import java.lang.invoke.CallSite;
import java.lang.invoke.MethodHandle;
import java.lang.invoke.MethodHandles;
import java.lang.invoke.MethodType;
import java.lang.reflect.AccessFlag;
import java.lang.runtime.ExactConversionsSupport;
import java.lang.runtime.SwitchBootstraps;
import java.util.concurrent.atomic.AtomicBoolean;
import static org.testng.Assert.*;
/**
* @test
* @bug 8304487
* @summary Verify boundary and special cases of exact conversion predicates
* @enablePreview
* @modules java.base/jdk.internal.classfile
* @compile ExactnessConversionsSupportTest.java
* @run testng/othervm ExactnessConversionsSupportTest
*/
@Test
public class ExactnessConversionsSupportTest {
public static void main(String[] args) {
testByte();
testShort();
testChar();
testInt();
testLong();
testFloat();
testDouble();
}
public static void testByte() {
assertEquals(true, ExactConversionsSupport.isIntToByteExact((byte) (Byte.MAX_VALUE)));
assertEquals(true, ExactConversionsSupport.isIntToByteExact((byte) (0)));
assertEquals(true, ExactConversionsSupport.isIntToByteExact((byte) (Byte.MIN_VALUE)));
assertEquals(false, ExactConversionsSupport.isIntToByteExact((short) (Short.MAX_VALUE)));
assertEquals(true, ExactConversionsSupport.isIntToByteExact((short) (0)));
assertEquals(false, ExactConversionsSupport.isIntToByteExact((short) (Short.MIN_VALUE)));
assertEquals(false, ExactConversionsSupport.isIntToByteExact((char) (Character.MAX_VALUE)));
assertEquals(true, ExactConversionsSupport.isIntToByteExact((char) (Character.MIN_VALUE)));
assertEquals(false, ExactConversionsSupport.isIntToByteExact(Integer.MAX_VALUE));
assertEquals(true, ExactConversionsSupport.isIntToByteExact(0));
assertEquals(false, ExactConversionsSupport.isIntToByteExact(Integer.MIN_VALUE));
assertEquals(false, ExactConversionsSupport.isLongToByteExact(Long.MAX_VALUE));
assertEquals(true, ExactConversionsSupport.isLongToByteExact(0L));
assertEquals(false, ExactConversionsSupport.isLongToByteExact(Long.MIN_VALUE));
assertEquals(false, ExactConversionsSupport.isFloatToByteExact(Float.MAX_VALUE));
assertEquals(true, ExactConversionsSupport.isFloatToByteExact((float) 0));
assertEquals(false, ExactConversionsSupport.isFloatToByteExact(Float.MIN_VALUE));
assertEquals(false, ExactConversionsSupport.isFloatToByteExact(Float.NaN));
assertEquals(false, ExactConversionsSupport.isFloatToByteExact(Float.POSITIVE_INFINITY));
assertEquals(false, ExactConversionsSupport.isFloatToByteExact(Float.NEGATIVE_INFINITY));
assertEquals(false, ExactConversionsSupport.isFloatToByteExact(-0.0f));
assertEquals(true, ExactConversionsSupport.isFloatToByteExact(+0.0f));
assertEquals(false, ExactConversionsSupport.isDoubleToByteExact(Double.MAX_VALUE));
assertEquals(true, ExactConversionsSupport.isDoubleToByteExact(0d));
assertEquals(false, ExactConversionsSupport.isDoubleToByteExact(Double.MIN_VALUE));
assertEquals(false, ExactConversionsSupport.isDoubleToByteExact(Double.NaN));
assertEquals(false, ExactConversionsSupport.isDoubleToByteExact(Double.POSITIVE_INFINITY));
assertEquals(false, ExactConversionsSupport.isDoubleToByteExact(Double.NEGATIVE_INFINITY));
assertEquals(false, ExactConversionsSupport.isDoubleToByteExact(-0.0d));
assertEquals(true, ExactConversionsSupport.isDoubleToByteExact(+0.0d));
}
public static void testShort() {
assertEquals(true, ExactConversionsSupport.isIntToShortExact((byte) (Byte.MAX_VALUE)));
assertEquals(true, ExactConversionsSupport.isIntToShortExact((byte) (0)));
assertEquals(true, ExactConversionsSupport.isIntToShortExact((byte) (Byte.MIN_VALUE)));
assertEquals(true, ExactConversionsSupport.isIntToShortExact((short) (Short.MAX_VALUE)));
assertEquals(true, ExactConversionsSupport.isIntToShortExact((short) (0)));
assertEquals(true, ExactConversionsSupport.isIntToShortExact((short) (Short.MIN_VALUE)));
assertEquals(false, ExactConversionsSupport.isIntToShortExact((char) (Character.MAX_VALUE)));
assertEquals(true, ExactConversionsSupport.isIntToShortExact((char) (Character.MIN_VALUE)));
assertEquals(false, ExactConversionsSupport.isIntToShortExact((Integer.MAX_VALUE)));
assertEquals(true, ExactConversionsSupport.isIntToShortExact((0)));
assertEquals(false, ExactConversionsSupport.isIntToShortExact((Integer.MIN_VALUE)));
assertEquals(false, ExactConversionsSupport.isLongToShortExact(Long.MAX_VALUE));
assertEquals(true, ExactConversionsSupport.isLongToShortExact(0L));
assertEquals(false, ExactConversionsSupport.isLongToShortExact(Long.MIN_VALUE));
assertEquals(false, ExactConversionsSupport.isFloatToShortExact(Float.MAX_VALUE));
assertEquals(true, ExactConversionsSupport.isFloatToShortExact(0f));
assertEquals(false, ExactConversionsSupport.isFloatToShortExact(Float.MIN_VALUE));
assertEquals(false, ExactConversionsSupport.isFloatToShortExact(Float.MIN_VALUE));
assertEquals(false, ExactConversionsSupport.isFloatToShortExact(Float.NaN));
assertEquals(false, ExactConversionsSupport.isFloatToShortExact(Float.POSITIVE_INFINITY));
assertEquals(false, ExactConversionsSupport.isFloatToShortExact(Float.NEGATIVE_INFINITY));
assertEquals(false, ExactConversionsSupport.isFloatToShortExact(-0.0f));
assertEquals(true, ExactConversionsSupport.isFloatToShortExact(+0.0f));
assertEquals(false, ExactConversionsSupport.isDoubleToShortExact(Double.MAX_VALUE));
assertEquals(true, ExactConversionsSupport.isDoubleToShortExact((double) 0));
assertEquals(false, ExactConversionsSupport.isDoubleToShortExact(Double.MIN_VALUE));
assertEquals(false, ExactConversionsSupport.isDoubleToShortExact(Double.NaN));
assertEquals(false, ExactConversionsSupport.isDoubleToShortExact(Double.POSITIVE_INFINITY));
assertEquals(false, ExactConversionsSupport.isDoubleToShortExact(Double.NEGATIVE_INFINITY));
assertEquals(false, ExactConversionsSupport.isDoubleToShortExact(-0.0d));
assertEquals(true, ExactConversionsSupport.isDoubleToShortExact(+0.0d));
}
public static void testChar() {
assertEquals(true, ExactConversionsSupport.isIntToCharExact((byte) (Byte.MAX_VALUE)));
assertEquals(true, ExactConversionsSupport.isIntToCharExact((byte) (0)));
assertEquals(false, ExactConversionsSupport.isIntToCharExact((byte) (Byte.MIN_VALUE)));
assertEquals(true, ExactConversionsSupport.isIntToCharExact((short) (Short.MAX_VALUE)));
assertEquals(true, ExactConversionsSupport.isIntToCharExact((short) (0)));
assertEquals(false, ExactConversionsSupport.isIntToCharExact((short) (Short.MIN_VALUE)));
assertEquals(true, ExactConversionsSupport.isIntToCharExact((char) (Character.MAX_VALUE)));
assertEquals(true, ExactConversionsSupport.isIntToCharExact((char) (Character.MIN_VALUE)));
assertEquals(false, ExactConversionsSupport.isIntToCharExact (Integer.MAX_VALUE));
assertEquals(true, ExactConversionsSupport.isIntToCharExact(0));
assertEquals(false, ExactConversionsSupport.isIntToCharExact(Integer.MIN_VALUE));
assertEquals(false, ExactConversionsSupport.isLongToCharExact(Long.MAX_VALUE));
assertEquals(true, ExactConversionsSupport.isLongToCharExact(0l));
assertEquals(false, ExactConversionsSupport.isLongToCharExact(Long.MIN_VALUE));
assertEquals(false, ExactConversionsSupport.isFloatToCharExact(Float.MAX_VALUE));
assertEquals(true, ExactConversionsSupport.isFloatToCharExact((float) 0));
assertEquals(false, ExactConversionsSupport.isFloatToCharExact(Float.MIN_VALUE));
assertEquals(false, ExactConversionsSupport.isFloatToCharExact(Float.NaN));
assertEquals(false, ExactConversionsSupport.isFloatToCharExact(Float.POSITIVE_INFINITY));
assertEquals(false, ExactConversionsSupport.isFloatToCharExact(Float.NEGATIVE_INFINITY));
assertEquals(false, ExactConversionsSupport.isFloatToCharExact(-0.0f));
assertEquals(true, ExactConversionsSupport.isFloatToCharExact(+0.0f));
assertEquals(false, ExactConversionsSupport.isDoubleToCharExact(Double.MAX_VALUE));
assertEquals(true, ExactConversionsSupport.isDoubleToCharExact((double) 0));
assertEquals(false, ExactConversionsSupport.isDoubleToCharExact(Double.MIN_VALUE));
assertEquals(false, ExactConversionsSupport.isDoubleToCharExact(Double.NaN));
assertEquals(false, ExactConversionsSupport.isDoubleToCharExact(Double.POSITIVE_INFINITY));
assertEquals(false, ExactConversionsSupport.isDoubleToCharExact(Double.NEGATIVE_INFINITY));
assertEquals(false, ExactConversionsSupport.isDoubleToCharExact(-0.0d));
assertEquals(true, ExactConversionsSupport.isDoubleToCharExact(+0.0d));
}
public static void testInt() {
assertEquals(false, ExactConversionsSupport.isLongToIntExact((Long.MAX_VALUE)));
assertEquals(true, ExactConversionsSupport.isLongToIntExact((0L)));
assertEquals(false, ExactConversionsSupport.isLongToIntExact((Long.MIN_VALUE)));
assertEquals(false, ExactConversionsSupport.isFloatToIntExact((Float.MAX_VALUE)));
assertEquals(true, ExactConversionsSupport.isFloatToIntExact(((float) 0)));
assertEquals(false, ExactConversionsSupport.isFloatToIntExact((Float.MIN_VALUE)));
assertEquals(false, ExactConversionsSupport.isFloatToIntExact((Float.NaN)));
assertEquals(false, ExactConversionsSupport.isFloatToIntExact((Float.POSITIVE_INFINITY)));
assertEquals(false, ExactConversionsSupport.isFloatToIntExact((Float.NEGATIVE_INFINITY)));
assertEquals(false, ExactConversionsSupport.isFloatToIntExact((-0.0f)));
assertEquals(true, ExactConversionsSupport.isFloatToIntExact((+0.0f)));
assertEquals(false, ExactConversionsSupport.isDoubleToIntExact((Double.MAX_VALUE)));
assertEquals(true, ExactConversionsSupport.isDoubleToIntExact(((double) 0)));
assertEquals(false, ExactConversionsSupport.isDoubleToIntExact((Double.MIN_VALUE)));
assertEquals(false, ExactConversionsSupport.isDoubleToIntExact((Double.NaN)));
assertEquals(false, ExactConversionsSupport.isDoubleToIntExact((Double.POSITIVE_INFINITY)));
assertEquals(false, ExactConversionsSupport.isDoubleToIntExact((Double.NEGATIVE_INFINITY)));
assertEquals(false, ExactConversionsSupport.isDoubleToIntExact((-0.0d)));
assertEquals(true, ExactConversionsSupport.isDoubleToIntExact((+0.0d)));
}
public static void testLong() {
assertEquals(false, ExactConversionsSupport.isFloatToLongExact((Float.MAX_VALUE)));
assertEquals(true, ExactConversionsSupport.isFloatToLongExact(((float) 0)));
assertEquals(false, ExactConversionsSupport.isFloatToLongExact((Float.MIN_VALUE)));
assertEquals(false, ExactConversionsSupport.isFloatToLongExact((Float.NaN)));
assertEquals(false, ExactConversionsSupport.isFloatToLongExact((Float.POSITIVE_INFINITY)));
assertEquals(false, ExactConversionsSupport.isFloatToLongExact((Float.NEGATIVE_INFINITY)));
assertEquals(false, ExactConversionsSupport.isFloatToLongExact((-0.0f)));
assertEquals(true, ExactConversionsSupport.isFloatToLongExact((+0.0f)));
assertEquals(false, ExactConversionsSupport.isDoubleToLongExact((Double.MAX_VALUE)));
assertEquals(true, ExactConversionsSupport.isDoubleToLongExact(((double) 0)));
assertEquals(false, ExactConversionsSupport.isDoubleToLongExact((Double.MIN_VALUE)));
assertEquals(false, ExactConversionsSupport.isDoubleToLongExact((Double.NaN)));
assertEquals(false, ExactConversionsSupport.isDoubleToLongExact((Double.POSITIVE_INFINITY)));
assertEquals(false, ExactConversionsSupport.isDoubleToLongExact((Double.NEGATIVE_INFINITY)));
assertEquals(false, ExactConversionsSupport.isDoubleToLongExact((-0.0d)));
assertEquals(true, ExactConversionsSupport.isDoubleToLongExact((+0.0d)));
}
public static void testFloat() {
assertEquals(true, ExactConversionsSupport.isIntToFloatExact(((byte) (Byte.MAX_VALUE))));
assertEquals(true, ExactConversionsSupport.isIntToFloatExact(((byte) (0))));
assertEquals(true, ExactConversionsSupport.isIntToFloatExact(((byte) (Byte.MIN_VALUE))));
assertEquals(true, ExactConversionsSupport.isIntToFloatExact(((short) (Short.MAX_VALUE))));
assertEquals(true, ExactConversionsSupport.isIntToFloatExact(((short) (0))));
assertEquals(true, ExactConversionsSupport.isIntToFloatExact(((short) (Short.MIN_VALUE))));
assertEquals(true, ExactConversionsSupport.isIntToFloatExact(((char) (Character.MAX_VALUE))));
assertEquals(true, ExactConversionsSupport.isIntToFloatExact(((char) (Character.MIN_VALUE))));
assertEquals(false, ExactConversionsSupport.isIntToFloatExact( (Integer.MAX_VALUE)));
assertEquals(true, ExactConversionsSupport.isIntToFloatExact((0)));
assertEquals(true, ExactConversionsSupport.isIntToFloatExact((Integer.MIN_VALUE)));
assertEquals(false, ExactConversionsSupport.isLongToFloatExact((Long.MAX_VALUE)));
assertEquals(true, ExactConversionsSupport.isLongToFloatExact((0l)));
assertEquals(true, ExactConversionsSupport.isLongToFloatExact((Long.MIN_VALUE)));
assertEquals(false, ExactConversionsSupport.isDoubleToFloatExact((Double.MAX_VALUE)));
assertEquals(true, ExactConversionsSupport.isDoubleToFloatExact(((double) 0)));
assertEquals(false, ExactConversionsSupport.isDoubleToFloatExact((Double.MIN_VALUE)));
assertEquals(true, ExactConversionsSupport.isDoubleToFloatExact((Double.NaN)));
assertEquals(true, ExactConversionsSupport.isDoubleToFloatExact((Double.POSITIVE_INFINITY)));
assertEquals(true, ExactConversionsSupport.isDoubleToFloatExact((Double.NEGATIVE_INFINITY)));
assertEquals(true, ExactConversionsSupport.isDoubleToFloatExact((-0.0d)));
assertEquals(true, ExactConversionsSupport.isDoubleToFloatExact((+0.0d)));
}
public static void testDouble() {
assertEquals(false, ExactConversionsSupport.isLongToDoubleExact((Long.MAX_VALUE)));
assertEquals(true, ExactConversionsSupport.isLongToDoubleExact((0L)));
assertEquals(true, ExactConversionsSupport.isLongToDoubleExact((Long.MIN_VALUE)));
}
static void assertEquals(boolean expected, boolean actual) {
if (expected != actual) {
throw new AssertionError("Expected: " + expected + ", actual: " + actual);
}
}
}
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