/*
* Copyright (c) 2015, 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.
*/
package com.oracle.truffle.api.test.profiles;
import static com.oracle.truffle.api.test.ReflectionUtils.getStaticField;
import static com.oracle.truffle.api.test.ReflectionUtils.invoke;
import static com.oracle.truffle.api.test.ReflectionUtils.invokeStatic;
import static com.oracle.truffle.api.test.ReflectionUtils.loadRelative;
import static org.hamcrest.CoreMatchers.is;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertThat;
import org.junit.Before;
import org.junit.Test;
import org.junit.experimental.theories.DataPoint;
import org.junit.experimental.theories.Theories;
import org.junit.experimental.theories.Theory;
import org.junit.runner.RunWith;
import com.oracle.truffle.api.profiles.DoubleValueProfile;
import com.oracle.truffle.api.profiles.PrimitiveValueProfile;
@RunWith(Theories.class)
public class DoubleValueProfileTest {
@DataPoint public static final double VALUE0 = Double.MIN_VALUE;
@DataPoint public static final double VALUE1 = -0.0f;
@DataPoint public static final double VALUE2 = +0.0f;
@DataPoint public static final double VALUE3 = 14.5f;
@DataPoint public static final double VALUE4 = Double.MAX_VALUE;
private static final double FLOAT_DELTA = 0.00001f;
private DoubleValueProfile profile;
@Before
public void create() {
profile = (DoubleValueProfile) invokeStatic(loadRelative(DoubleValueProfileTest.class, "DoubleValueProfile$Enabled"), "create");
}
private static boolean isGeneric(DoubleValueProfile profile) {
return (boolean) invoke(profile, "isGeneric");
}
private static boolean isUninitialized(DoubleValueProfile profile) {
return (boolean) invoke(profile, "isUninitialized");
}
private static double getCachedValue(DoubleValueProfile profile) {
return (double) invoke(profile, "getCachedValue");
}
@Test
public void testInitial() {
assertThat(isGeneric(profile), is(false));
assertThat(isUninitialized(profile), is(true));
profile.toString(); // test that it is not crashing
}
@Theory
public void testProfileOneFloat(double value) {
double result = profile.profile(value);
assertThat(result, is(value));
assertEquals(getCachedValue(profile), value, FLOAT_DELTA);
assertThat(isUninitialized(profile), is(false));
profile.toString(); // test that it is not crashing
}
@SuppressWarnings("deprecation")
@Theory
public void testProfileTwoFloat(double value0, double value1) {
double result0 = profile.profile(value0);
double result1 = profile.profile(value1);
assertEquals(result0, value0, FLOAT_DELTA);
assertEquals(result1, value1, FLOAT_DELTA);
if (PrimitiveValueProfile.exactCompare(value0, value1)) {
assertEquals(getCachedValue(profile), value0, FLOAT_DELTA);
assertThat(isGeneric(profile), is(false));
} else {
assertThat(isGeneric(profile), is(true));
}
assertThat(isUninitialized(profile), is(false));
profile.toString(); // test that it is not crashing
}
@SuppressWarnings("deprecation")
@Theory
public void testProfileThreeFloat(double value0, double value1, double value2) {
double result0 = profile.profile(value0);
double result1 = profile.profile(value1);
double result2 = profile.profile(value2);
assertEquals(result0, value0, FLOAT_DELTA);
assertEquals(result1, value1, FLOAT_DELTA);
assertEquals(result2, value2, FLOAT_DELTA);
if (PrimitiveValueProfile.exactCompare(value0, value1) && PrimitiveValueProfile.exactCompare(value1, value2)) {
assertEquals(getCachedValue(profile), value0, FLOAT_DELTA);
assertThat(isGeneric(profile), is(false));
} else {
assertThat(isGeneric(profile), is(true));
}
assertThat(isUninitialized(profile), is(false));
profile.toString(); // test that it is not crashing
}
@Test
public void testDisabled() {
DoubleValueProfile p = (DoubleValueProfile) getStaticField(loadRelative(DoubleValueProfileTest.class, "DoubleValueProfile$Disabled"), "INSTANCE");
assertThat(p.profile(VALUE0), is(VALUE0));
assertThat(p.profile(VALUE1), is(VALUE1));
assertThat(p.profile(VALUE2), is(VALUE2));
assertThat(p.profile(VALUE3), is(VALUE3));
assertThat(p.profile(VALUE4), is(VALUE4));
p.toString(); // test that it is not crashing
}
}