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// Copyright 2017 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.rules.config;
import static com.google.common.truth.Truth.assertThat;
import static com.google.common.truth.Truth8.assertThat;
import com.google.common.collect.ImmutableMap;
import com.google.devtools.build.lib.actions.util.LabelArtifactOwner;
import com.google.devtools.build.lib.cmdline.Label;
import java.util.Map;
import java.util.Optional;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
/** Tests for feature flag configuration fragments. */
@RunWith(JUnit4.class)
public final class ConfigFeatureFlagConfigurationTest {
@Test
public void getFeatureFlagValue_returnsValueOfFlagWhenRequestingSetFlag() throws Exception {
Label ruleLabel = Label.parseAbsoluteUnchecked("//a:a");
Optional<String> flagValue =
getConfigurationWithFlags(ImmutableMap.of(ruleLabel, "valued"))
.getFeatureFlagValue(new LabelArtifactOwner(ruleLabel));
assertThat(flagValue).isPresent();
assertThat(flagValue).hasValue("valued");
}
@Test
public void getFeatureFlagValue_returnsEmptyOptionalWhenRequestingUnsetFlag() throws Exception {
Optional<String> flagValue =
getConfigurationWithFlags(ImmutableMap.of(Label.parseAbsoluteUnchecked("//a:a"), "valued"))
.getFeatureFlagValue(new LabelArtifactOwner(Label.parseAbsoluteUnchecked("//b:b")));
assertThat(flagValue).isEmpty();
}
@Test
public void getOutputDirectoryName_returnsNullWhenFlagMapIsEmpty() throws Exception {
assertThat(getConfigurationWithFlags(ImmutableMap.<Label, String>of()).getOutputDirectoryName())
.isNull();
}
@Test
public void getOutputDirectoryName_returnsNonNullWhenFlagMapIsNonEmpty() throws Exception {
assertThat(
getConfigurationWithFlags(ImmutableMap.of(Label.parseAbsoluteUnchecked("//a:a"), "ok"))
.getOutputDirectoryName())
.isNotNull();
}
@Test
public void getOutputDirectoryName_returnsSameValueForTwoMapsWithSamePairsRegardlessOfOrder()
throws Exception {
Map<Label, String> firstOrder =
ImmutableMap.of(
Label.parseAbsoluteUnchecked("//b:b"), "first",
Label.parseAbsoluteUnchecked("//a:a"), "second");
Map<Label, String> reverseOrder =
ImmutableMap.of(
Label.parseAbsoluteUnchecked("//a:a"), "second",
Label.parseAbsoluteUnchecked("//b:b"), "first");
assertThat(getConfigurationWithFlags(reverseOrder).getOutputDirectoryName())
.isEqualTo(getConfigurationWithFlags(firstOrder).getOutputDirectoryName());
}
@Test
public void getOutputDirectoryName_returnsDifferentValueForDifferentFlags() throws Exception {
Map<Label, String> someFlags =
ImmutableMap.of(
Label.parseAbsoluteUnchecked("//a:a"), "first",
Label.parseAbsoluteUnchecked("//b:b"), "second");
Map<Label, String> otherFlags =
ImmutableMap.of(
Label.parseAbsoluteUnchecked("//c:c"), "first",
Label.parseAbsoluteUnchecked("//d:d"), "second");
assertThat(getConfigurationWithFlags(otherFlags).getOutputDirectoryName())
.isNotEqualTo(getConfigurationWithFlags(someFlags).getOutputDirectoryName());
}
@Test
public void getOutputDirectoryName_returnsDifferentValueForDifferentValues() throws Exception {
Map<Label, String> someFlags =
ImmutableMap.of(
Label.parseAbsoluteUnchecked("//a:a"), "first",
Label.parseAbsoluteUnchecked("//b:b"), "second");
Map<Label, String> otherFlags =
ImmutableMap.of(
Label.parseAbsoluteUnchecked("//a:a"), "worst",
Label.parseAbsoluteUnchecked("//b:b"), "heckin");
assertThat(getConfigurationWithFlags(otherFlags).getOutputDirectoryName())
.isNotEqualTo(getConfigurationWithFlags(someFlags).getOutputDirectoryName());
}
@Test
public void getOutputDirectoryName_differentiatesLabelAndValue() throws Exception {
Map<Label, String> someFlags =
ImmutableMap.of(
Label.parseAbsoluteUnchecked("//a:a"), "firestarter",
Label.parseAbsoluteUnchecked("//b:b"), "second");
Map<Label, String> otherFlags =
ImmutableMap.of(
Label.parseAbsoluteUnchecked("//a:afire"), "starter",
Label.parseAbsoluteUnchecked("//b:b"), "second");
assertThat(getConfigurationWithFlags(otherFlags).getOutputDirectoryName())
.isNotEqualTo(getConfigurationWithFlags(someFlags).getOutputDirectoryName());
}
@Test
public void getOutputDirectoryName_returnsDifferentValueForSubsetOfFlagValuePairs()
throws Exception {
Map<Label, String> someFlags = ImmutableMap.of(Label.parseAbsoluteUnchecked("//a:a"), "first");
Map<Label, String> moreFlags =
ImmutableMap.of(
Label.parseAbsoluteUnchecked("//a:a"), "first",
Label.parseAbsoluteUnchecked("//b:b"), "second");
assertThat(getConfigurationWithFlags(moreFlags).getOutputDirectoryName())
.isNotEqualTo(getConfigurationWithFlags(someFlags).getOutputDirectoryName());
}
/** Generates a configuration fragment with the given set of flag-value pairs. */
private static ConfigFeatureFlagConfiguration getConfigurationWithFlags(
Map<Label, String> flags) {
ConfigFeatureFlagOptions options = new ConfigFeatureFlagOptions();
options.replaceFlagValues(flags);
return new ConfigFeatureFlagConfiguration(options);
}
}
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