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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.platform;
import static com.google.common.truth.Truth.assertThat;
import com.google.devtools.build.lib.analysis.ConfiguredTarget;
import com.google.devtools.build.lib.analysis.util.BuildViewTestCase;
import com.google.devtools.build.lib.cmdline.Label;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
/** Tests of {@link ConstraintSetting} and {@link ConstraintValue}. */
@RunWith(JUnit4.class)
public class ConstraintTest extends BuildViewTestCase {
@Before
public void createConstraints() throws Exception {
scratch.file(
"constraint/BUILD",
"constraint_setting(name = 'basic')",
"constraint_value(name = 'foo',",
" constraint_setting = ':basic',",
" )",
"constraint_value(name = 'bar',",
" constraint_setting = ':basic',",
" )");
}
@Test
public void testConstraint() throws Exception {
ConfiguredTarget setting = getConfiguredTarget("//constraint:basic");
assertThat(setting).isNotNull();
assertThat(ConstraintSetting.constraintSetting(setting)).isNotNull();
assertThat(ConstraintSetting.constraintSetting(setting)).isNotNull();
assertThat(ConstraintSetting.constraintSetting(setting).label())
.isEqualTo(Label.parseAbsolute("//constraint:basic"));
ConfiguredTarget fooValue = getConfiguredTarget("//constraint:foo");
assertThat(fooValue).isNotNull();
assertThat(ConstraintValue.constraintValue(fooValue)).isNotNull();
assertThat(ConstraintValue.constraintValue(fooValue).constraint().label())
.isEqualTo(Label.parseAbsolute("//constraint:basic"));
assertThat(ConstraintValue.constraintValue(fooValue).label())
.isEqualTo(Label.parseAbsolute("//constraint:foo"));
ConfiguredTarget barValue = getConfiguredTarget("//constraint:bar");
assertThat(barValue).isNotNull();
assertThat(ConstraintValue.constraintValue(barValue).constraint().label())
.isEqualTo(Label.parseAbsolute("//constraint:basic"));
assertThat(ConstraintValue.constraintValue(barValue).label())
.isEqualTo(Label.parseAbsolute("//constraint:bar"));
}
@Test
public void testConstraint_skylark() throws Exception {
scratch.file(
"test/platform/constraints.bzl",
"def _impl(ctx):",
" constraint_value = ctx.attr.constraint[platform_common.ConstraintValueInfo]",
" return struct(",
" setting = constraint_value.constraint.label,",
" value = constraint_value.label)",
"my_rule = rule(",
" implementation = _impl,",
" attrs = { 'constraint': attr.label(providers = [platform_common.ConstraintValueInfo])},",
")");
scratch.file(
"test/platform/BUILD",
"load('//test/platform:constraints.bzl', 'my_rule')",
"my_rule(name = 'r',",
" constraint = '//constraint:foo')");
ConfiguredTarget configuredTarget = getConfiguredTarget("//test/platform:r");
assertThat(configuredTarget).isNotNull();
Label settingLabel = (Label) configuredTarget.get("setting");
assertThat(settingLabel).isNotNull();
assertThat(settingLabel).isEqualTo(makeLabel("//constraint:basic"));
Label valueLabel = (Label) configuredTarget.get("value");
assertThat(valueLabel).isNotNull();
assertThat(valueLabel).isEqualTo(makeLabel("//constraint:foo"));
}
}
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