| // Copyright 2017 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.buildjar; |
| |
| import static com.google.common.base.StandardSystemProperty.JAVA_HOME; |
| import static com.google.common.truth.Truth.assertThat; |
| import static java.nio.charset.StandardCharsets.UTF_8; |
| |
| import com.google.common.collect.ImmutableList; |
| import com.google.common.collect.ImmutableMap; |
| import com.google.common.io.ByteStreams; |
| import com.google.devtools.build.buildjar.VanillaJavaBuilder.VanillaJavaBuilderResult; |
| import java.io.File; |
| import java.io.IOException; |
| import java.io.OutputStream; |
| import java.nio.file.Files; |
| import java.nio.file.Path; |
| import java.nio.file.Paths; |
| import java.util.Enumeration; |
| import java.util.List; |
| import java.util.jar.JarEntry; |
| import java.util.jar.JarFile; |
| import java.util.jar.JarOutputStream; |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.rules.TemporaryFolder; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.JUnit4; |
| |
| /** {@link VanillaJavaBuilder}Test */ |
| @RunWith(JUnit4.class) |
| public class VanillaJavaBuilderTest { |
| @Rule public final TemporaryFolder temporaryFolder = new TemporaryFolder(); |
| |
| VanillaJavaBuilderResult run(List<String> args) throws Exception { |
| try (VanillaJavaBuilder builder = new VanillaJavaBuilder()) { |
| return builder.run(args); |
| } |
| } |
| |
| ImmutableMap<String, byte[]> readJar(File file) throws IOException { |
| ImmutableMap.Builder<String, byte[]> result = ImmutableMap.builder(); |
| try (JarFile jf = new JarFile(file)) { |
| Enumeration<JarEntry> entries = jf.entries(); |
| while (entries.hasMoreElements()) { |
| JarEntry je = entries.nextElement(); |
| result.put(je.getName(), ByteStreams.toByteArray(jf.getInputStream(je))); |
| } |
| } |
| return result.buildOrThrow(); |
| } |
| |
| @Test |
| public void hello() throws Exception { |
| Path source = temporaryFolder.newFile("Test.java").toPath(); |
| Path output = temporaryFolder.newFile("out.jar").toPath(); |
| Files.write( |
| source, |
| ImmutableList.of( |
| "class A {", // |
| "}"), |
| UTF_8); |
| Path sourceJar = temporaryFolder.newFile("src.srcjar").toPath(); |
| try (OutputStream os = Files.newOutputStream(sourceJar); |
| JarOutputStream jos = new JarOutputStream(os)) { |
| jos.putNextEntry(new JarEntry("B.java")); |
| jos.write("class B {}".getBytes(UTF_8)); |
| } |
| |
| VanillaJavaBuilderResult result = |
| run( |
| ImmutableList.of( |
| "--javacopts", |
| "-Xep:FallThrough:ERROR", |
| "--", |
| "--sources", |
| source.toString(), |
| "--source_jars", |
| sourceJar.toString(), |
| "--output", |
| output.toString(), |
| "--bootclasspath", |
| Paths.get(JAVA_HOME.value()).resolve("lib/rt.jar").toString())); |
| |
| assertThat(result.output()).isEmpty(); |
| assertThat(result.ok()).isTrue(); |
| |
| ImmutableMap<String, byte[]> outputEntries = readJar(output.toFile()); |
| assertThat(outputEntries.keySet()) |
| .containsExactly("META-INF/", "META-INF/MANIFEST.MF", "A.class", "B.class"); |
| } |
| |
| @Test |
| public void error() throws Exception { |
| Path source = temporaryFolder.newFile("Test.java").toPath(); |
| Path output = temporaryFolder.newFolder().toPath().resolve("out.jar"); |
| Files.write( |
| source, |
| ImmutableList.of( |
| "class A {", // |
| " void f(int x) {", |
| " switch (x) {", |
| " case 0:", |
| " System.err.println(0);", |
| " case 1:", |
| " System.err.println(0);", |
| " }", |
| " }", |
| "}"), |
| UTF_8); |
| |
| VanillaJavaBuilderResult result = |
| run( |
| ImmutableList.of( |
| "--javacopts", |
| "-Xlint:all", |
| "-Werror", |
| "--", |
| "--sources", |
| source.toString(), |
| "--output", |
| output.toString(), |
| "--bootclasspath", |
| Paths.get(System.getProperty("java.home")).resolve("lib/rt.jar").toString())); |
| |
| assertThat(result.output()).contains("possible fall-through"); |
| assertThat(result.ok()).isFalse(); |
| assertThat(Files.exists(output)).isFalse(); |
| } |
| |
| @Test |
| public void diagnosticWithoutSource() throws Exception { |
| Path source = temporaryFolder.newFile("Test.java").toPath(); |
| Path output = temporaryFolder.newFolder().toPath().resolve("out.jar"); |
| Files.write( |
| source, |
| ImmutableList.of( |
| "import java.util.ArrayList;", |
| "import java.util.List;", |
| "abstract class A {", |
| " void test() {", |
| " f(0L);", |
| " }", |
| " void f(int i) {}", |
| "}"), |
| UTF_8); |
| |
| VanillaJavaBuilderResult result = |
| run( |
| ImmutableList.of( |
| "--javacopts", |
| "-Xlint:none", |
| "--", |
| "--sources", |
| source.toString(), |
| "--output", |
| output.toString())); |
| |
| assertThat(result.output()).contains("note: Some messages have been simplified"); |
| assertThat(result.ok()).isFalse(); |
| assertThat(Files.exists(output)).isFalse(); |
| } |
| |
| @Test |
| public void cleanOutputDirectories() throws Exception { |
| Path source = temporaryFolder.newFile("Test.java").toPath(); |
| Path output = temporaryFolder.newFile("out.jar").toPath(); |
| Files.write( |
| source, |
| ImmutableList.of( |
| "class A {", // |
| "}"), |
| UTF_8); |
| Path sourceJar = temporaryFolder.newFile("src.srcjar").toPath(); |
| try (OutputStream os = Files.newOutputStream(sourceJar); |
| JarOutputStream jos = new JarOutputStream(os)) { |
| jos.putNextEntry(new JarEntry("B.java")); |
| jos.write("class B {}".getBytes(UTF_8)); |
| } |
| |
| Path classDir = temporaryFolder.newFolder().toPath(); |
| Files.write( |
| classDir.resolve("extra.class"), |
| new byte[] {(byte) 0xca, (byte) 0xfe, (byte) 0xba, (byte) 0xbe}); |
| |
| VanillaJavaBuilderResult result = |
| run( |
| ImmutableList.of( |
| "--javacopts", |
| "-Xep:FallThrough:ERROR", |
| "--", |
| "--sources", |
| source.toString(), |
| "--source_jars", |
| sourceJar.toString(), |
| "--output", |
| output.toString(), |
| "--bootclasspath", |
| Paths.get(System.getProperty("java.home")).resolve("lib/rt.jar").toString())); |
| |
| assertThat(result.output()).isEmpty(); |
| assertThat(result.ok()).isTrue(); |
| |
| ImmutableMap<String, byte[]> outputEntries = readJar(output.toFile()); |
| assertThat(outputEntries.keySet()) |
| .containsExactly("META-INF/", "META-INF/MANIFEST.MF", "A.class", "B.class"); |
| } |
| |
| // suppress unpopular deferred diagnostic notes for sunapi, deprecation, and unchecked |
| @Test |
| public void testDeferredDiagnostics() throws Exception { |
| Path b = temporaryFolder.newFile("B.java").toPath(); |
| Path a = temporaryFolder.newFile("A.java").toPath(); |
| Path output = temporaryFolder.newFile("out.jar").toPath(); |
| Files.write( |
| b, |
| ImmutableList.of( |
| "@Deprecated", // |
| "class B {}"), |
| UTF_8); |
| Files.write( |
| a, |
| ImmutableList.of( |
| "import java.util.*;", // |
| "public class A {", |
| " sun.misc.Unsafe theUnsafe;", |
| " B b;", |
| " List l = new ArrayList<>();", |
| "}"), |
| UTF_8); |
| |
| VanillaJavaBuilderResult result = |
| run( |
| ImmutableList.of( |
| "--sources", |
| a.toString(), |
| b.toString(), |
| "--output", |
| output.toString(), |
| "--bootclasspath", |
| Paths.get(System.getProperty("java.home")).resolve("lib/rt.jar").toString())); |
| |
| assertThat(result.output()).isEmpty(); |
| assertThat(result.ok()).isTrue(); |
| } |
| |
| @Test |
| public void nativeHeaders() throws Exception { |
| Path foo = temporaryFolder.newFile("FooWithNativeMethod.java").toPath(); |
| Path bar = temporaryFolder.newFile("BarWithNativeMethod.java").toPath(); |
| Path output = temporaryFolder.newFile("out.jar").toPath(); |
| Path nativeHeaderOutput = temporaryFolder.newFile("out-native-headers.jar").toPath(); |
| Files.write( |
| foo, |
| ImmutableList.of( |
| "package test;", |
| "public class FooWithNativeMethod {", |
| " public static native byte[] g(String s);", |
| "}"), |
| UTF_8); |
| Files.write( |
| bar, |
| ImmutableList.of( |
| "package test;", |
| "public class BarWithNativeMethod {", |
| " public static native byte[] g(String s);", |
| "}"), |
| UTF_8); |
| |
| VanillaJavaBuilderResult result = |
| run( |
| ImmutableList.of( |
| "--javacopts", |
| "-Xep:FallThrough:ERROR", |
| "--", |
| "--sources", |
| foo.toString(), |
| bar.toString(), |
| "--output", |
| output.toString(), |
| "--native_header_output", |
| nativeHeaderOutput.toString(), |
| "--bootclasspath", |
| Paths.get(System.getProperty("java.home")).resolve("lib/rt.jar").toString())); |
| |
| assertThat(result.output()).isEmpty(); |
| assertThat(result.ok()).isTrue(); |
| |
| ImmutableMap<String, byte[]> outputEntries = readJar(nativeHeaderOutput.toFile()); |
| assertThat(outputEntries.keySet()) |
| .containsAtLeast("test_BarWithNativeMethod.h", "test_FooWithNativeMethod.h"); |
| } |
| } |