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// Copyright 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.analysis.actions;
import static com.google.common.truth.Truth.assertThat;
import static com.google.devtools.build.lib.actions.util.ActionsTestUtil.NULL_ACTION_OWNER;
import com.google.common.base.Joiner;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Lists;
import com.google.devtools.build.lib.actions.ActionExecutionContext;
import com.google.devtools.build.lib.actions.Artifact;
import com.google.devtools.build.lib.actions.Executor;
import com.google.devtools.build.lib.actions.Root;
import com.google.devtools.build.lib.analysis.BlazeDirectories;
import com.google.devtools.build.lib.analysis.actions.TemplateExpansionAction.Substitution;
import com.google.devtools.build.lib.analysis.actions.TemplateExpansionAction.Template;
import com.google.devtools.build.lib.analysis.config.BinTools;
import com.google.devtools.build.lib.exec.util.TestExecutorBuilder;
import com.google.devtools.build.lib.testutil.FoundationTestCase;
import com.google.devtools.build.lib.util.io.FileOutErr;
import com.google.devtools.build.lib.vfs.FileSystemUtils;
import com.google.devtools.build.lib.vfs.Path;
import java.util.List;
/**
* Tests {@link TemplateExpansionAction}.
*/
public class TemplateExpansionActionTest extends FoundationTestCase {
private static final String TEMPLATE = Joiner.on('\n').join("key=%key%", "value=%value%");
private Root outputRoot;
private Artifact inputArtifact;
private Artifact outputArtifact;
private Path output;
private List<Substitution> substitutions;
private BlazeDirectories directories;
private BinTools binTools;
@Override
protected void setUp() throws Exception {
super.setUp();
Root workspace = Root.asSourceRoot(scratch.dir("/workspace"));
outputRoot = Root.asDerivedRoot(scratch.dir("/workspace"), scratch.dir("/workspace/out"));
Path input = scratch.file("/workspace/input.txt", TEMPLATE);
inputArtifact = new Artifact(input, workspace);
output = scratch.resolve("/workspace/out/destination.txt");
outputArtifact = new Artifact(output, outputRoot);
substitutions = Lists.newArrayList();
substitutions.add(Substitution.of("%key%", "foo"));
substitutions.add(Substitution.of("%value%", "bar"));
directories = new BlazeDirectories(
scratch.resolve("/install"),
scratch.resolve("/base"),
scratch.resolve("/workspace"));
binTools = BinTools.empty(directories);
}
private TemplateExpansionAction create() {
TemplateExpansionAction result = new TemplateExpansionAction(NULL_ACTION_OWNER,
outputArtifact, Template.forString(TEMPLATE), substitutions, false);
return result;
}
public void testInputsIsEmpty() {
assertThat(create().getInputs()).isEmpty();
}
public void testDestinationArtifactIsOutput() {
assertEquals(ImmutableSet.of(outputArtifact), create().getOutputs());
}
public void testExpansion() throws Exception {
Executor executor = new TestExecutorBuilder(directories, binTools).build();
create().execute(createContext(executor));
String content = new String(FileSystemUtils.readContentAsLatin1(output));
String expected = Joiner.on('\n').join("key=foo", "value=bar");
assertEquals(expected, content);
}
public void testKeySameIfSame() throws Exception {
Artifact outputArtifact2 = new Artifact(scratch.resolve("/workspace/out/destination.txt"),
outputRoot);
TemplateExpansionAction a = new TemplateExpansionAction(NULL_ACTION_OWNER,
outputArtifact, Template.forString(TEMPLATE),
ImmutableList.of(Substitution.of("%key%", "foo")), false);
TemplateExpansionAction b = new TemplateExpansionAction(NULL_ACTION_OWNER,
outputArtifact2, Template.forString(TEMPLATE),
ImmutableList.of(Substitution.of("%key%", "foo")), false);
assertEquals(a.computeKey(), b.computeKey());
}
public void testKeyDiffersForSubstitution() throws Exception {
Artifact outputArtifact2 = new Artifact(scratch.resolve("/workspace/out/destination.txt"),
outputRoot);
TemplateExpansionAction a = new TemplateExpansionAction(NULL_ACTION_OWNER,
outputArtifact, Template.forString(TEMPLATE),
ImmutableList.of(Substitution.of("%key%", "foo")), false);
TemplateExpansionAction b = new TemplateExpansionAction(NULL_ACTION_OWNER,
outputArtifact2, Template.forString(TEMPLATE),
ImmutableList.of(Substitution.of("%key%", "foo2")), false);
assertFalse(a.computeKey().equals(b.computeKey()));
}
public void testKeyDiffersForExecutable() throws Exception {
Artifact outputArtifact2 = new Artifact(scratch.resolve("/workspace/out/destination.txt"),
outputRoot);
TemplateExpansionAction a = new TemplateExpansionAction(NULL_ACTION_OWNER,
outputArtifact, Template.forString(TEMPLATE),
ImmutableList.of(Substitution.of("%key%", "foo")), false);
TemplateExpansionAction b = new TemplateExpansionAction(NULL_ACTION_OWNER,
outputArtifact2, Template.forString(TEMPLATE),
ImmutableList.of(Substitution.of("%key%", "foo")), true);
assertFalse(a.computeKey().equals(b.computeKey()));
}
public void testKeyDiffersForTemplates() throws Exception {
Artifact outputArtifact2 = new Artifact(scratch.resolve("/workspace/out/destination.txt"),
outputRoot);
TemplateExpansionAction a = new TemplateExpansionAction(NULL_ACTION_OWNER,
outputArtifact, Template.forString(TEMPLATE),
ImmutableList.of(Substitution.of("%key%", "foo")), false);
TemplateExpansionAction b = new TemplateExpansionAction(NULL_ACTION_OWNER,
outputArtifact2, Template.forString(TEMPLATE + " "),
ImmutableList.of(Substitution.of("%key%", "foo")), false);
assertFalse(a.computeKey().equals(b.computeKey()));
}
private TemplateExpansionAction createWithArtifact() {
TemplateExpansionAction result = new TemplateExpansionAction(NULL_ACTION_OWNER,
inputArtifact, outputArtifact, substitutions, false);
return result;
}
public void testArtifactTemplateHasInput() {
assertEquals(ImmutableList.of(inputArtifact), createWithArtifact().getInputs());
}
public void testArtifactTemplateHasOutput() {
assertEquals(ImmutableSet.of(outputArtifact), createWithArtifact().getOutputs());
}
public void testArtifactTemplateExpansion() throws Exception {
Executor executor = new TestExecutorBuilder(directories, binTools).build();
createWithArtifact().execute(createContext(executor));
String content = new String(FileSystemUtils.readContentAsLatin1(output));
// The trailing "" is needed because scratch.file implicitly appends "\n".
String expected = Joiner.on('\n').join("key=foo", "value=bar", "");
assertEquals(expected, content);
}
private ActionExecutionContext createContext(Executor executor) {
return new ActionExecutionContext(executor, null, null, new FileOutErr(), null);
}
}
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