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/*
* Copyright 2018 Google Inc. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.turbine.binder;
import static com.google.common.base.StandardSystemProperty.JAVA_CLASS_VERSION;
import static com.google.common.collect.Iterables.getOnlyElement;
import static com.google.common.truth.Truth.assertThat;
import com.google.common.collect.ImmutableList;
import com.google.turbine.binder.bytecode.BytecodeBoundClass;
import com.google.turbine.binder.lookup.LookupKey;
import com.google.turbine.binder.lookup.LookupResult;
import com.google.turbine.binder.sym.ClassSymbol;
import com.google.turbine.tree.Tree.Ident;
import java.io.IOException;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
@RunWith(JUnit4.class)
public class JimageClassBinderTest {
@Test
public void testDefaultJimage() throws IOException {
if (Double.parseDouble(JAVA_CLASS_VERSION.value()) < 53) {
// only run on JDK 9 and later
return;
}
ClassPath binder = JimageClassBinder.bindDefault();
BytecodeBoundClass objectInfo = binder.env().get(new ClassSymbol("java/lang/Object"));
assertThat(objectInfo).isNotNull();
assertThat(objectInfo.jarFile()).isEqualTo("/modules/java.base/java/lang/Object.class");
assertThat(binder.env().get(new ClassSymbol("java/lang/NoSuch"))).isNull();
assertThat(binder.index().lookupPackage(ImmutableList.of("java", "nosuch"))).isNull();
LookupResult objectSym =
binder
.index()
.lookupPackage(ImmutableList.of("java", "lang"))
.lookup(new LookupKey(ImmutableList.of(new Ident(-1, "Object"))));
assertThat(((ClassSymbol) objectSym.sym()).binaryName()).isEqualTo("java/lang/Object");
assertThat(objectSym.remaining()).isEmpty();
LookupResult entrySym =
binder
.index()
.lookupPackage(ImmutableList.of("java", "util"))
.lookup(new LookupKey(ImmutableList.of(new Ident(-1, "Map"), new Ident(-1, "Entry"))));
assertThat(((ClassSymbol) entrySym.sym()).binaryName()).isEqualTo("java/util/Map");
assertThat(getOnlyElement(entrySym.remaining()).value()).isEqualTo("Entry");
entrySym =
binder
.index()
.scope()
.lookup(
new LookupKey(
ImmutableList.of(
new Ident(-1, "java"),
new Ident(-1, "util"),
new Ident(-1, "Map"),
new Ident(-1, "Entry"))));
assertThat(((ClassSymbol) entrySym.sym()).binaryName()).isEqualTo("java/util/Map");
assertThat(getOnlyElement(entrySym.remaining()).value()).isEqualTo("Entry");
}
}
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