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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.analysis;
import static com.google.common.truth.Truth.assertThat;
import com.google.devtools.build.lib.packages.AbstractRuleErrorConsumer;
import com.google.devtools.build.lib.packages.RuleErrorConsumer;
import java.util.ArrayList;
import java.util.List;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
/** Unit tests for {@link LocationExpander}. */
@RunWith(JUnit4.class)
public class LocationExpanderTest {
private static final class Capture extends AbstractRuleErrorConsumer
implements RuleErrorConsumer {
private final List<String> warnsOrErrors = new ArrayList<>();
@Override
public void ruleWarning(String message) {
warnsOrErrors.add("WARN: " + message);
}
@Override
public void ruleError(String message) {
warnsOrErrors.add("ERROR: " + message);
}
@Override
public void attributeWarning(String attrName, String message) {
warnsOrErrors.add("WARN-" + attrName + ": " + message);
}
@Override
public void attributeError(String attrName, String message) {
warnsOrErrors.add("ERROR-" + attrName + ": " + message);
}
@Override
public boolean hasErrors() {
return !warnsOrErrors.isEmpty();
}
}
private LocationExpander makeExpander(RuleErrorConsumer ruleErrorConsumer) throws Exception {
return new LocationExpander(
ruleErrorConsumer,
(String s) -> "one(" + s + ")",
(String s) -> "more(" + s + ")");
}
private String expand(String input) throws Exception {
return makeExpander(new Capture()).expand(input);
}
@Test
public void noExpansion() throws Exception {
assertThat(expand("abc")).isEqualTo("abc");
}
@Test
public void oneOrMore() throws Exception {
assertThat(expand("$(location a)")).isEqualTo("one(a)");
assertThat(expand("$(locations b)")).isEqualTo("more(b)");
assertThat(expand("---$(location a)---")).isEqualTo("---one(a)---");
}
@Test
public void twoInOne() throws Exception {
assertThat(expand("$(location a) $(locations b)")).isEqualTo("one(a) more(b)");
}
@Test
public void notAFunction() throws Exception {
assertThat(expand("$(locationz a)")).isEqualTo("$(locationz a)");
}
@Test
public void missingClosingParen() throws Exception {
Capture capture = new Capture();
String value = makeExpander(capture).expand("foo $(location a");
// In case of an error, no location expansion is performed.
assertThat(value).isEqualTo("foo $(location a");
assertThat(capture.warnsOrErrors).containsExactly("ERROR: unterminated $(location) expression");
}
// In case of errors, the exact return value is unspecified. However, we don't want to
// accidentally change the behavior even in this unspecified case - that's why I added a test
// here.
@Test
public void noExpansionOnError() throws Exception {
Capture capture = new Capture();
String value = makeExpander(capture).expand("foo $(location a) $(location a");
assertThat(value).isEqualTo("foo $(location a) $(location a");
assertThat(capture.warnsOrErrors).containsExactly("ERROR: unterminated $(location) expression");
}
}
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