/*
* Copyright 2013-present Facebook, Inc.
*
* 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.facebook.buck.jvm.java;
import static org.junit.Assert.assertTrue;
import com.facebook.buck.io.ProjectFilesystem;
import com.facebook.buck.model.BuildTarget;
import com.facebook.buck.model.BuildTargetFactory;
import com.facebook.buck.model.BuildTargets;
import com.facebook.buck.testutil.integration.ProjectWorkspace;
import com.facebook.buck.testutil.integration.ProjectWorkspace.ProcessResult;
import com.facebook.buck.testutil.integration.TemporaryPaths;
import com.facebook.buck.testutil.integration.TestDataHelper;
import com.google.common.base.Joiner;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Path;
import org.junit.Rule;
import org.junit.Test;
/**
* Integration test to verify that when a {@code java_library} rule is built, the classpath that is
* used to build it does not contain any leftover artifacts from the previous build.
*/
public class CleanClasspathIntegrationTest {
@Rule public TemporaryPaths tmp = new TemporaryPaths();
@Test
public void testJavaLibraryRuleDoesNotIncludeItsOwnOldOutputOnTheClasspath()
throws InterruptedException, IOException {
ProjectWorkspace workspace =
TestDataHelper.createProjectWorkspaceForScenario(
this, "classpath_corruption_regression", tmp);
workspace.setUp();
ProjectFilesystem filesystem = new ProjectFilesystem(tmp.getRoot());
// Build //:example so that content is written to buck-out/gen/.
BuildTarget target = BuildTargetFactory.newInstance("//:example");
ProcessResult processResult1 =
workspace.runBuckCommand("build", target.getFullyQualifiedName());
processResult1.assertSuccess();
assertTrue(
"example.jar should be written. This should not be on the classpath on the next build.",
Files.isRegularFile(
workspace.getPath(
BuildTargets.getGenPath(filesystem, target, "lib__%s__output/example.jar"))));
// Overwrite the existing BUCK file, redefining the java_library rule to exclude Bar.java from
// its srcs.
Path buildFile = workspace.getPath("BUCK");
String newBuildFileContents =
Joiner.on('\n')
.join("java_library(", " name = 'example',", " srcs = [ 'Foo.java' ], ", ")");
Files.write(buildFile, newBuildFileContents.getBytes(StandardCharsets.UTF_8));
// Rebuilding //:example should fail even though Bar.class is in
// buck-out/gen/lib__example__output/example.jar.
ProcessResult processResult2 =
workspace.runBuckCommand("build", target.getFullyQualifiedName());
processResult2.assertFailure("Build should fail because Foo.java depends on Bar.java.");
}
}