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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.rules.repository;
import static com.google.common.truth.Truth.assertThat;
import com.google.common.annotations.VisibleForTesting;
import com.google.common.io.BaseEncoding;
import com.google.devtools.build.lib.actions.FileContentsProxy;
import com.google.devtools.build.lib.actions.FileStateValue;
import com.google.devtools.build.lib.actions.FileStateValue.RegularFileStateValue;
import com.google.devtools.build.lib.actions.FileValue;
import com.google.devtools.build.lib.actions.FileValue.RegularFileValue;
import com.google.devtools.build.lib.analysis.BlazeDirectories;
import com.google.devtools.build.lib.analysis.RuleDefinition;
import com.google.devtools.build.lib.analysis.util.BuildViewTestCase;
import com.google.devtools.build.lib.packages.Rule;
import com.google.devtools.build.lib.vfs.FileSystemUtils;
import com.google.devtools.build.lib.vfs.Path;
import com.google.devtools.build.lib.vfs.PathFragment;
import com.google.devtools.build.lib.vfs.Root;
import com.google.devtools.build.lib.vfs.RootedPath;
import com.google.devtools.build.skyframe.SkyFunction;
import com.google.devtools.build.skyframe.SkyFunctionException;
import java.util.Map;
import javax.annotation.Nullable;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
/**
* Tests for @{link RepositoryFunction}
*/
@RunWith(JUnit4.class)
public class RepositoryFunctionTest extends BuildViewTestCase {
/**
* Exposes RepositoryFunction's protected methods to this class.
*/
@VisibleForTesting
static class TestingRepositoryFunction extends RepositoryFunction {
@Nullable
@Override
public RepositoryDirectoryValue.Builder fetch(Rule rule, Path outputDirectory,
BlazeDirectories directories, SkyFunction.Environment env, Map<String, String> markerData)
throws SkyFunctionException, InterruptedException {
return null;
}
@Override
protected boolean isLocal(Rule rule) {
return false;
}
@Override
public Class<? extends RuleDefinition> getRuleDefinition() {
return null;
}
}
@Test
public void testGetTargetPathRelative() throws Exception {
Rule rule = scratchRule("external", "z", "local_repository(",
" name = 'z',",
" path = 'a/b/c',",
")");
assertThat(TestingRepositoryFunction.getTargetPath(rule, rootDirectory))
.isEqualTo(rootDirectory.getRelative("a/b/c").asFragment());
}
@Test
public void testGetTargetPathAbsolute() throws Exception {
Rule rule = scratchRule("external", "w", "local_repository(",
" name = 'w',",
" path = '/a/b/c',",
")");
assertThat(TestingRepositoryFunction.getTargetPath(rule, rootDirectory))
.isEqualTo(PathFragment.create("/a/b/c"));
}
@Test
public void testGenerateWorkspaceFile() throws Exception {
Rule rule = scratchRule("external", "abc", "local_repository(",
" name = 'abc',",
" path = '/a/b/c',",
")");
RepositoryFunction.createWorkspaceFile(rootDirectory, rule.getTargetKind(), rule.getName());
String workspaceContent = new String(
FileSystemUtils.readContentAsLatin1(rootDirectory.getRelative("WORKSPACE")));
assertThat(workspaceContent).contains("workspace(name = \"abc\")");
}
private static void assertMarkerFileEscaping(String testCase) {
String escaped = RepositoryDelegatorFunction.escape(testCase);
assertThat(RepositoryDelegatorFunction.unescape(escaped)).isEqualTo(testCase);
}
@Test
public void testMarkerFileEscaping() throws Exception {
assertMarkerFileEscaping(null);
assertMarkerFileEscaping("\\0");
assertMarkerFileEscaping("a\\0");
assertMarkerFileEscaping("a b");
assertMarkerFileEscaping("a b c");
assertMarkerFileEscaping("a \\b");
assertMarkerFileEscaping("a \\nb");
assertMarkerFileEscaping("a \\\\nb");
assertMarkerFileEscaping("a \\\nb");
assertMarkerFileEscaping("a \nb");
}
@Test
public void testFileValueToMarkerValue() throws Exception {
RootedPath path =
RootedPath.toRootedPath(Root.fromPath(rootDirectory), scratch.file("foo", "bar"));
// Digest should be returned if the FileStateValue has it.
FileStateValue fsv = new RegularFileStateValue(3, new byte[] {1, 2, 3, 4}, null);
FileValue fv = new RegularFileValue(path, fsv);
assertThat(RepositoryFunction.fileValueToMarkerValue(fv)).isEqualTo("01020304");
// Digest should also be returned if the FileStateValue doesn't have it.
fsv = new RegularFileStateValue(3, null, new FileContentsProxy(100, 200));
fv = new RegularFileValue(path, fsv);
String expectedDigest = BaseEncoding.base16().lowerCase().encode(path.asPath().getDigest());
assertThat(RepositoryFunction.fileValueToMarkerValue(fv)).isEqualTo(expectedDigest);
}
}
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