/*
* Copyright (c) 2014, 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.
*
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package com.oracle.truffle.api.test.profiles;
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.assertNotNull;
import static org.junit.Assert.assertNull;
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.ValueProfile;
@RunWith(Theories.class)
public class ExactClassValueProfileTest {
@DataPoint public static final String O1 = new String();
@DataPoint public static final String O2 = new String();
@DataPoint public static final Object O3 = new Object();
@DataPoint public static final Integer O4 = new Integer(1);
@DataPoint public static final Integer O5 = null;
@DataPoint public static final TestBaseClass O6 = new TestBaseClass();
@DataPoint public static final TestSubClass O7 = new TestSubClass();
private ValueProfile profile;
private static class TestBaseClass {
}
private static class TestSubClass extends TestBaseClass {
}
@Before
public void create() {
profile = (ValueProfile) invokeStatic(loadRelative(ExactClassValueProfileTest.class, "ValueProfile$ExactClass"), "create");
}
private static boolean isGeneric(ValueProfile profile) {
return (boolean) invoke(profile, "isGeneric");
}
private static boolean isUninitialized(ValueProfile profile) {
return (boolean) invoke(profile, "isUninitialized");
}
private static Object getCachedClass(ValueProfile profile) {
return invoke(profile, "getCachedClass");
}
@Test
public void testInitial() throws Exception {
assertThat(isGeneric(profile), is(false));
assertThat(isUninitialized(profile), is(true));
assertNull(getCachedClass(profile));
assertNotNull(profile.toString());
}
@Theory
public void testProfileOne(Object value) throws Exception {
Object result = profile.profile(value);
assertThat(result, is(value));
assertEquals(expectedClass(value), getCachedClass(profile));
assertThat(isUninitialized(profile), is(false));
assertNotNull(profile.toString());
}
@Theory
public void testProfileTwo(Object value0, Object value1) throws Exception {
Object result0 = profile.profile(value0);
Object result1 = profile.profile(value1);
assertThat(result0, is(value0));
assertThat(result1, is(value1));
Object expectedClass = expectedClass(value0) == expectedClass(value1) ? expectedClass(value0) : Object.class;
assertEquals(expectedClass, getCachedClass(profile));
assertThat(isUninitialized(profile), is(false));
assertThat(isGeneric(profile), is(expectedClass == Object.class));
assertNotNull(profile.toString());
}
@Theory
public void testProfileThree(Object value0, Object value1, Object value2) throws Exception {
Object result0 = profile.profile(value0);
Object result1 = profile.profile(value1);
Object result2 = profile.profile(value2);
assertThat(result0, is(value0));
assertThat(result1, is(value1));
assertThat(result2, is(value2));
Object expectedClass = expectedClass(value0) == expectedClass(value1) && expectedClass(value1) == expectedClass(value2) ? expectedClass(value0) : Object.class;
assertEquals(expectedClass, getCachedClass(profile));
assertThat(isUninitialized(profile), is(false));
assertThat(isGeneric(profile), is(expectedClass == Object.class));
assertNotNull(profile.toString());
}
private static Class<?> expectedClass(Object value) {
return value == null ? Object.class : value.getClass();
}
}