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/*
* Copyright 2014 Google LLC
*
* 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.auto.common;
import static com.google.auto.common.Visibility.DEFAULT;
import static com.google.auto.common.Visibility.PRIVATE;
import static com.google.auto.common.Visibility.PROTECTED;
import static com.google.auto.common.Visibility.PUBLIC;
import static com.google.common.truth.Truth.assertThat;
import com.google.testing.compile.CompilationRule;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import javax.lang.model.element.Element;
import javax.lang.model.util.Elements;
import org.junit.Rule;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
@RunWith(JUnit4.class)
public class VisibilityTest {
@Rule public CompilationRule compilation = new CompilationRule();
@Test
public void packageVisibility() {
assertThat(Visibility.ofElement(compilation.getElements().getPackageElement("java.lang")))
.isEqualTo(PUBLIC);
assertThat(
Visibility.ofElement(
compilation.getElements().getPackageElement("com.google.auto.common")))
.isEqualTo(PUBLIC);
}
@Test
public void moduleVisibility() throws IllegalAccessException, InvocationTargetException {
Method getModuleElement;
try {
getModuleElement = Elements.class.getMethod("getModuleElement", CharSequence.class);
} catch (NoSuchMethodException e) {
// TODO(ronshapiro): rewrite this test without reflection once we're on Java 9
return;
}
Element moduleElement =
(Element) getModuleElement.invoke(compilation.getElements(), "java.base");
assertThat(Visibility.ofElement(moduleElement)).isEqualTo(PUBLIC);
}
@SuppressWarnings("unused")
public static class PublicClass {
public static class NestedPublicClass {}
protected static class NestedProtectedClass {}
static class NestedDefaultClass {}
private static class NestedPrivateClass {}
}
@SuppressWarnings("unused")
protected static class ProtectedClass {
public static class NestedPublicClass {}
protected static class NestedProtectedClass {}
static class NestedDefaultClass {}
private static class NestedPrivateClass {}
}
@SuppressWarnings("unused")
static class DefaultClass {
public static class NestedPublicClass {}
protected static class NestedProtectedClass {}
static class NestedDefaultClass {}
private static class NestedPrivateClass {}
}
@SuppressWarnings("unused")
private static class PrivateClass {
public static class NestedPublicClass {}
protected static class NestedProtectedClass {}
static class NestedDefaultClass {}
private static class NestedPrivateClass {}
}
@Test
public void classVisibility() {
assertThat(Visibility.ofElement(compilation.getElements().getTypeElement("java.util.Map")))
.isEqualTo(PUBLIC);
assertThat(
Visibility.ofElement(compilation.getElements().getTypeElement("java.util.Map.Entry")))
.isEqualTo(PUBLIC);
assertThat(
Visibility.ofElement(
compilation.getElements().getTypeElement(PublicClass.class.getCanonicalName())))
.isEqualTo(PUBLIC);
assertThat(
Visibility.ofElement(
compilation.getElements().getTypeElement(ProtectedClass.class.getCanonicalName())))
.isEqualTo(PROTECTED);
assertThat(
Visibility.ofElement(
compilation.getElements().getTypeElement(DefaultClass.class.getCanonicalName())))
.isEqualTo(DEFAULT);
assertThat(
Visibility.ofElement(
compilation.getElements().getTypeElement(PrivateClass.class.getCanonicalName())))
.isEqualTo(PRIVATE);
}
@Test
public void effectiveClassVisibility() {
assertThat(effectiveVisiblityOfClass(PublicClass.class)).isEqualTo(PUBLIC);
assertThat(effectiveVisiblityOfClass(ProtectedClass.class)).isEqualTo(PROTECTED);
assertThat(effectiveVisiblityOfClass(DefaultClass.class)).isEqualTo(DEFAULT);
assertThat(effectiveVisiblityOfClass(PrivateClass.class)).isEqualTo(PRIVATE);
assertThat(effectiveVisiblityOfClass(PublicClass.NestedPublicClass.class)).isEqualTo(PUBLIC);
assertThat(effectiveVisiblityOfClass(PublicClass.NestedProtectedClass.class))
.isEqualTo(PROTECTED);
assertThat(effectiveVisiblityOfClass(PublicClass.NestedDefaultClass.class)).isEqualTo(DEFAULT);
assertThat(effectiveVisiblityOfClass(PublicClass.NestedPrivateClass.class)).isEqualTo(PRIVATE);
assertThat(effectiveVisiblityOfClass(ProtectedClass.NestedPublicClass.class))
.isEqualTo(PROTECTED);
assertThat(effectiveVisiblityOfClass(ProtectedClass.NestedProtectedClass.class))
.isEqualTo(PROTECTED);
assertThat(effectiveVisiblityOfClass(ProtectedClass.NestedDefaultClass.class))
.isEqualTo(DEFAULT);
assertThat(effectiveVisiblityOfClass(ProtectedClass.NestedPrivateClass.class))
.isEqualTo(PRIVATE);
assertThat(effectiveVisiblityOfClass(DefaultClass.NestedPublicClass.class)).isEqualTo(DEFAULT);
assertThat(effectiveVisiblityOfClass(DefaultClass.NestedProtectedClass.class))
.isEqualTo(DEFAULT);
assertThat(effectiveVisiblityOfClass(DefaultClass.NestedDefaultClass.class)).isEqualTo(DEFAULT);
assertThat(effectiveVisiblityOfClass(DefaultClass.NestedPrivateClass.class)).isEqualTo(PRIVATE);
assertThat(effectiveVisiblityOfClass(PrivateClass.NestedPublicClass.class)).isEqualTo(PRIVATE);
assertThat(effectiveVisiblityOfClass(PrivateClass.NestedProtectedClass.class))
.isEqualTo(PRIVATE);
assertThat(effectiveVisiblityOfClass(PrivateClass.NestedDefaultClass.class)).isEqualTo(PRIVATE);
assertThat(effectiveVisiblityOfClass(PrivateClass.NestedPrivateClass.class)).isEqualTo(PRIVATE);
}
private Visibility effectiveVisiblityOfClass(Class<?> clazz) {
return Visibility.effectiveVisibilityOfElement(
compilation.getElements().getTypeElement(clazz.getCanonicalName()));
}
}
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