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// Copyright 2015 The Bazel Authors. 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.devtools.build.lib.analysis;
import static com.google.common.truth.Truth.assertThat;
import static com.google.devtools.build.lib.packages.Attribute.attr;
import static org.junit.Assert.fail;
import com.google.common.collect.ImmutableList;
import com.google.devtools.build.lib.cmdline.Label;
import com.google.devtools.build.lib.packages.AspectDefinition;
import com.google.devtools.build.lib.packages.AspectParameters;
import com.google.devtools.build.lib.packages.Attribute;
import com.google.devtools.build.lib.packages.Attribute.ConfigurationTransition;
import com.google.devtools.build.lib.packages.Attribute.LateBoundLabel;
import com.google.devtools.build.lib.packages.AttributeMap;
import com.google.devtools.build.lib.packages.BuildType;
import com.google.devtools.build.lib.packages.ConfigurationFragmentPolicy.MissingFragmentPolicy;
import com.google.devtools.build.lib.packages.NativeAspectClass;
import com.google.devtools.build.lib.packages.Rule;
import com.google.devtools.build.lib.skylarkinterface.SkylarkModule;
import com.google.devtools.build.lib.util.FileTypeSet;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
/**
* Tests for aspect definitions.
*/
@RunWith(JUnit4.class)
public class AspectDefinitionTest {
/**
* A dummy aspect factory. Is there to demonstrate how to define aspects and so that we can test
* {@code attributeAspect}.
*/
public static final class TestAspectFactory implements ConfiguredNativeAspectFactory {
private final AspectDefinition definition;
/**
* Normal aspects will have an argumentless constructor and their definition will be hard-wired
* as a static member. This one is different so that we can create the definition in a test
* method.
*/
private TestAspectFactory(AspectDefinition definition) {
this.definition = definition;
}
@Override
public ConfiguredAspect create(
ConfiguredTarget base, RuleContext context, AspectParameters parameters) {
throw new IllegalStateException();
}
@Override
public AspectDefinition getDefinition(AspectParameters aspectParameters) {
return definition;
}
}
@Test
public void testAspectWithImplicitOrLateboundAttribute_AddsToAttributeMap() throws Exception {
Attribute implicit = attr("$runtime", BuildType.LABEL)
.value(Label.parseAbsoluteUnchecked("//run:time"))
.build();
LateBoundLabel<String> latebound = new LateBoundLabel<String>() {
@Override
public Label getDefault(Rule rule, AttributeMap attributes, String configuration) {
return Label.parseAbsoluteUnchecked("//run:away");
}
};
AspectDefinition simple = new AspectDefinition.Builder("simple")
.add(implicit)
.add(attr(":latebound", BuildType.LABEL).value(latebound))
.build();
assertThat(simple.getAttributes()).containsEntry("$runtime", implicit);
assertThat(simple.getAttributes()).containsKey(":latebound");
assertThat(simple.getAttributes().get(":latebound").getLateBoundDefault())
.isEqualTo(latebound);
}
@Test
public void testAspectWithDuplicateAttribute_FailsToAdd() throws Exception {
try {
new AspectDefinition.Builder("clash")
.add(attr("$runtime", BuildType.LABEL).value(Label.parseAbsoluteUnchecked("//run:time")))
.add(attr("$runtime", BuildType.LABEL).value(Label.parseAbsoluteUnchecked("//oops")));
fail(); // expected IllegalArgumentException
} catch (IllegalArgumentException e) {
// expected
}
}
@Test
public void testAspectWithUserVisibleAttribute_FailsToAdd() throws Exception {
try {
new AspectDefinition.Builder("user_visible_attribute")
.add(
attr("invalid", BuildType.LABEL)
.value(Label.parseAbsoluteUnchecked("//run:time"))
.allowedFileTypes(FileTypeSet.NO_FILE))
.build();
fail(); // expected IllegalArgumentException
} catch (IllegalArgumentException e) {
// expected
}
}
@Test
public void testAttributeAspect_WrapsAndAddsToMap() throws Exception {
AspectDefinition withAspects = new AspectDefinition.Builder("attribute_aspect")
.attributeAspect("srcs", TestAspectFactory.class)
.attributeAspect("deps", new NativeAspectClass<TestAspectFactory>(TestAspectFactory.class))
.build();
assertThat(withAspects.getAttributeAspects())
.containsEntry("srcs", new NativeAspectClass<TestAspectFactory>(TestAspectFactory.class));
assertThat(withAspects.getAttributeAspects())
.containsEntry("deps", new NativeAspectClass<TestAspectFactory>(TestAspectFactory.class));
}
@Test
public void testRequireProvider_AddsToSetOfRequiredProvidersAndNames() throws Exception {
AspectDefinition requiresProviders = new AspectDefinition.Builder("required_providers")
.requireProvider(String.class)
.requireProvider(Integer.class)
.build();
assertThat(requiresProviders.getRequiredProviders())
.containsExactly(String.class, Integer.class);
assertThat(requiresProviders.getRequiredProviderNames())
.containsExactly("java.lang.String", "java.lang.Integer");
}
@Test
public void testNoConfigurationFragmentPolicySetup_ReturnsNull() throws Exception {
AspectDefinition noPolicy = new AspectDefinition.Builder("no_policy")
.build();
assertThat(noPolicy.getConfigurationFragmentPolicy()).isNull();
}
@Test
public void testMissingFragmentPolicy_PropagatedToConfigurationFragmentPolicy() throws Exception {
AspectDefinition missingFragments = new AspectDefinition.Builder("missing_fragments")
.setMissingFragmentPolicy(MissingFragmentPolicy.IGNORE)
.build();
assertThat(missingFragments.getConfigurationFragmentPolicy()).isNotNull();
assertThat(missingFragments.getConfigurationFragmentPolicy().getMissingFragmentPolicy())
.isEqualTo(MissingFragmentPolicy.IGNORE);
}
@Test
public void testRequiresConfigurationFragments_PropagatedToConfigurationFragmentPolicy()
throws Exception {
AspectDefinition requiresFragments = new AspectDefinition.Builder("requires_fragments")
.requiresConfigurationFragments(Integer.class, String.class)
.build();
assertThat(requiresFragments.getConfigurationFragmentPolicy()).isNotNull();
assertThat(
requiresFragments.getConfigurationFragmentPolicy().getRequiredConfigurationFragments())
.containsExactly(Integer.class, String.class);
}
@Test
public void testRequiresHostConfigurationFragments_PropagatedToConfigurationFragmentPolicy()
throws Exception {
AspectDefinition requiresFragments = new AspectDefinition.Builder("requires_fragments")
.requiresHostConfigurationFragments(Integer.class, String.class)
.build();
assertThat(requiresFragments.getConfigurationFragmentPolicy()).isNotNull();
assertThat(
requiresFragments.getConfigurationFragmentPolicy().getRequiredConfigurationFragments())
.containsExactly(Integer.class, String.class);
}
@Test
public void testRequiresConfigurationFragmentNames_PropagatedToConfigurationFragmentPolicy()
throws Exception {
AspectDefinition requiresFragments = new AspectDefinition.Builder("requires_fragments")
.requiresConfigurationFragmentsBySkylarkModuleName(ImmutableList.of("test_fragment"))
.build();
assertThat(requiresFragments.getConfigurationFragmentPolicy()).isNotNull();
assertThat(
requiresFragments.getConfigurationFragmentPolicy()
.isLegalConfigurationFragment(TestFragment.class, ConfigurationTransition.NONE))
.isTrue();
}
@Test
public void testRequiresHostConfigurationFragmentNames_PropagatedToConfigurationFragmentPolicy()
throws Exception {
AspectDefinition requiresFragments = new AspectDefinition.Builder("requires_fragments")
.requiresHostConfigurationFragmentsBySkylarkModuleName(ImmutableList.of("test_fragment"))
.build();
assertThat(requiresFragments.getConfigurationFragmentPolicy()).isNotNull();
assertThat(
requiresFragments.getConfigurationFragmentPolicy()
.isLegalConfigurationFragment(TestFragment.class, ConfigurationTransition.HOST))
.isTrue();
}
@Test
public void testEmptySkylarkConfigurationFragmentPolicySetup_ReturnsNull() throws Exception {
AspectDefinition noPolicy = new AspectDefinition.Builder("no_policy")
.requiresConfigurationFragmentsBySkylarkModuleName(ImmutableList.<String>of())
.requiresHostConfigurationFragmentsBySkylarkModuleName(ImmutableList.<String>of())
.build();
assertThat(noPolicy.getConfigurationFragmentPolicy()).isNull();
}
@SkylarkModule(name = "test_fragment", doc = "test fragment")
private static final class TestFragment {}
}
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