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// Copyright 2006-2015 Google Inc. 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.packages;
import static com.google.common.truth.Truth.assertThat;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
import com.google.common.base.Joiner;
import com.google.devtools.build.lib.events.util.EventCollectionApparatus;
import com.google.devtools.build.lib.packages.util.PackageFactoryApparatus;
import com.google.devtools.build.lib.testutil.Scratch;
import com.google.devtools.build.lib.vfs.Path;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
/**
* A test for the {@code exports_files} function defined in
* {@link PackageFactory}.
*/
@RunWith(JUnit4.class)
public class ExportsFilesTest {
private Scratch scratch = new Scratch("/workspace");
private EventCollectionApparatus events = new EventCollectionApparatus();
private PackageFactoryApparatus packages = new PackageFactoryApparatus(events.reporter());
private Package pkg() throws Exception {
Path buildFile = scratch.file("pkg/BUILD",
"exports_files(['foo.txt', 'bar.txt'])");
return packages.createPackage("pkg", buildFile);
}
@Test
public void testExportsFilesRegistersFilesWithPackage() throws Exception {
List<String> names = getFileNamesOf(pkg());
String expected = "//pkg:BUILD //pkg:bar.txt //pkg:foo.txt";
assertEquals(expected, Joiner.on(' ').join(names));
}
/**
* Returns the names of the input files that are known to pkg.
*/
private static List<String> getFileNamesOf(Package pkg) {
List<String> names = new ArrayList<>();
for (FileTarget target : pkg.getTargets(FileTarget.class)) {
names.add(target.getLabel().toString());
}
Collections.sort(names);
return names;
}
@Test
public void testFileThatsNotRegisteredYieldsUnknownTargetException() throws Exception {
try {
pkg().getTarget("baz.txt");
fail();
} catch (NoSuchTargetException e) {
assertThat(e).hasMessage("no such target '//pkg:baz.txt':"
+ " target 'baz.txt' not declared in package 'pkg' defined by /workspace/pkg/BUILD");
}
}
@Test
public void testRegisteredFilesAreRetrievable() throws Exception {
Package pkg = pkg();
assertEquals("foo.txt", pkg.getTarget("foo.txt").getName());
assertEquals("bar.txt", pkg.getTarget("bar.txt").getName());
}
@Test
public void testExportsFilesAndRuleNameConflict() throws Exception {
events.setFailFast(false);
Path buildFile = scratch.file("pkg2/BUILD",
"exports_files(['foo'])",
"genrule(name = 'foo', srcs = ['bar'], outs = [],",
" cmd = '/bin/true')");
Package pkg = packages.createPackage("pkg2", buildFile);
events.assertContainsEvent("rule 'foo' in package 'pkg2' conflicts with "
+ "existing source file");
assertTrue(pkg.getTarget("foo") instanceof InputFile);
}
}
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