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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.packages;
import static com.google.common.truth.Truth.assertThat;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.fail;
import com.google.common.collect.ImmutableList;
import com.google.devtools.build.lib.events.Event;
import com.google.devtools.build.lib.events.StoredEventHandler;
import com.google.devtools.build.lib.packages.Package.Builder;
import com.google.devtools.build.lib.syntax.Mutability;
import com.google.devtools.build.lib.syntax.ParserInputSource;
import com.google.devtools.build.lib.testutil.Scratch;
import com.google.devtools.build.lib.testutil.TestRuleClassProvider;
import com.google.devtools.build.lib.vfs.Path;
import java.io.IOException;
import java.util.List;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
/**
* Tests for WorkspaceFactory.
*/
@RunWith(JUnit4.class)
public class WorkspaceFactoryTest {
@Test
public void testLoadError() throws Exception {
// WS with a syntax error: '//a' should end with .bzl.
WorkspaceFactoryHelper helper = parse("load('//a', 'a')");
helper.assertLexingExceptionThrown();
assertThat(helper.getLexerError())
.contains("The label must reference a file with extension '.bzl'");
}
@Test
public void testWorkspaceName() throws Exception {
WorkspaceFactoryHelper helper = parse("workspace(name = 'my_ws')");
assertEquals("my_ws", helper.getPackage().getWorkspaceName());
}
@Test
public void testWorkspaceStartsWithNumber() throws Exception {
WorkspaceFactoryHelper helper = parse("workspace(name = '123abc')");
assertThat(helper.getParserError()).contains("123abc is not a legal workspace name");
}
@Test
public void testWorkspaceWithIllegalCharacters() throws Exception {
WorkspaceFactoryHelper helper = parse("workspace(name = 'a.b.c')");
assertThat(helper.getParserError()).contains("a.b.c is not a legal workspace name");
}
@Test
public void testIllegalRepoName() throws Exception {
WorkspaceFactoryHelper helper = parse("local_repository(",
" name = 'foo/bar',",
" path = '/foo/bar',",
")");
assertThat(helper.getParserError()).contains(
"local_repository rule //external:foo/bar's name field must be a legal workspace name");
}
@Test
public void testIllegalWorkspaceFunctionPosition() throws Exception {
WorkspaceFactoryHelper helper = new WorkspaceFactoryHelper(
false, "workspace(name = 'foo')");
assertThat(helper.getParserError()).contains(
"workspace() function should be used only at the top of the WORKSPACE file");
}
private WorkspaceFactoryHelper parse(String... args) {
return new WorkspaceFactoryHelper(args);
}
/**
* Parses a WORKSPACE file with the given content.
*/
private class WorkspaceFactoryHelper {
private final Builder builder;
private final WorkspaceFactory factory;
private final Exception exception;
private final ImmutableList<Event> events;
public WorkspaceFactoryHelper(String... args) {
this(true, args);
}
public WorkspaceFactoryHelper(boolean allowOverride, String... args) {
Path root = null;
Path workspaceFilePath = null;
try {
Scratch scratch = new Scratch("/");
root = scratch.dir("/workspace");
workspaceFilePath = scratch.file("/workspace/WORKSPACE", args);
} catch (IOException e) {
fail("Shouldn't happen: " + e.getMessage());
}
StoredEventHandler eventHandler = new StoredEventHandler();
builder = Package.newExternalPackageBuilder(
Package.Builder.DefaultHelper.INSTANCE, workspaceFilePath, "");
this.factory = new WorkspaceFactory(
builder,
TestRuleClassProvider.getRuleClassProvider(),
ImmutableList.<PackageFactory.EnvironmentExtension>of(),
Mutability.create("test"),
allowOverride,
root,
root);
Exception exception = null;
try {
factory.parse(ParserInputSource.create(workspaceFilePath), eventHandler);
} catch (BuildFileContainsErrorsException e) {
exception = e;
} catch (IOException | InterruptedException e) {
fail("Shouldn't happen: " + e.getMessage());
}
this.events = eventHandler.getEvents();
this.exception = exception;
}
public Package getPackage() throws InterruptedException {
return builder.build();
}
public void assertLexingExceptionThrown() {
assertNotNull(exception);
assertThat(exception.getMessage()).contains("Failed to parse /workspace/WORKSPACE");
}
public String getLexerError() {
assertEquals(1, events.size());
return events.get(0).getMessage();
}
public String getParserError() {
List<Event> events = builder.getEvents();
assertThat(events.size()).isGreaterThan(0);
return events.get(0).getMessage();
}
}
}
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