Examples with HashCode com.google.common.hash.HashCode used on opensource projects

Example 21 with HashCode

use of com.google.common.hash.HashCode in project buck by facebook.

the class PrebuiltJarSymbolsFinderTest method contentsOfBinaryJarShouldAffectRuleKey.

@Test
public void contentsOfBinaryJarShouldAffectRuleKey() throws IOException {
    // The path to the JAR file to use as the binaryJar of the PrebuiltJarSymbolsFinder.
    final Path relativePathToJar = Paths.get("common.jar");
    final Path absolutePathToJar = tmp.getRoot().resolve(relativePathToJar);
    // Mock out calls to a SourcePathResolver so we can create a legitimate
    // DefaultRuleKeyFactory.
    final SourcePathRuleFinder ruleFinder = createMock(SourcePathRuleFinder.class);
    final SourcePathResolver pathResolver = new SourcePathResolver(ruleFinder);
    createMock(SourcePathResolver.class);
    expect(ruleFinder.getRule(anyObject(SourcePath.class))).andReturn(Optional.empty()).anyTimes();
    // Calculates the RuleKey for a JavaSymbolsRule with a PrebuiltJarSymbolsFinder whose binaryJar
    // is a JAR file with the specified entries.
    Function<ImmutableSet<String>, RuleKey> createRuleKey = entries -> {
        File jarFile = absolutePathToJar.toFile();
        JavaSymbolsRule javaSymbolsRule;
        FakeFileHashCache fileHashCache;
        try {
            PrebuiltJarSymbolsFinder finder = createFinderForFileWithEntries(relativePathToJar.getFileName().toString(), entries);
            HashCode hash = Files.hash(jarFile, Hashing.sha1());
            Map<Path, HashCode> pathsToHashes = ImmutableMap.of(absolutePathToJar, hash);
            fileHashCache = new FakeFileHashCache(pathsToHashes);
            javaSymbolsRule = new JavaSymbolsRule(BuildTargetFactory.newInstance("//foo:rule"), finder, ImmutableSortedSet.of(), ObjectMappers.newDefaultInstance(), new ProjectFilesystem(tmp.getRoot()));
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
        RuleKey ruleKey = new DefaultRuleKeyFactory(0, fileHashCache, pathResolver, ruleFinder).build(javaSymbolsRule);
        jarFile.delete();
        return ruleKey;
    };
    RuleKey key1 = createRuleKey.apply(ImmutableSet.of("entry1", "entry2"));
    RuleKey key2 = createRuleKey.apply(ImmutableSet.of("entry1", "entry2"));
    RuleKey key3 = createRuleKey.apply(ImmutableSet.of("entry1", "entry2", "entry3"));
    assertNotNull(key1);
    assertNotNull(key2);
    assertNotNull(key3);
    assertEquals("Two instances of a JavaSymbolsRule with the same inputs should have the same RuleKey.", key1, key2);
    assertNotEquals("Changing the contents of the binaryJar for the PrebuiltJarSymbolsFinder should change " + "the RuleKey of the JavaSymbolsRule that contains it.", key1, key3);
}

Example 22 with HashCode

use of com.google.common.hash.HashCode in project buck by facebook.

the class ParserTest method buildTargetGraphAndGetHashCodes.

private ImmutableMap<BuildTarget, HashCode> buildTargetGraphAndGetHashCodes(Parser parser, BuildTarget... buildTargets) throws Exception {
    // Build the target graph so we can access the hash code cache.
    ImmutableList<BuildTarget> buildTargetsList = ImmutableList.copyOf(buildTargets);
    TargetGraph targetGraph = parser.buildTargetGraph(eventBus, cell, false, executorService, buildTargetsList);
    ImmutableMap.Builder<BuildTarget, HashCode> toReturn = ImmutableMap.builder();
    for (TargetNode<?, ?> node : targetGraph.getNodes()) {
        toReturn.put(node.getBuildTarget(), node.getRawInputsHashCode());
    }
    return toReturn.build();
}

Example 23 with HashCode

use of com.google.common.hash.HashCode in project buck by facebook.

the class ParserTest method targetWithSourceFileChangesHash.

@Test
public void targetWithSourceFileChangesHash() throws Exception {
    tempDir.newFolder("foo");
    Path testFooBuckFile = tempDir.newFile("foo/BUCK");
    Files.write(testFooBuckFile, "java_library(name = 'lib', srcs=glob(['*.java']), visibility=['PUBLIC'])\n".getBytes(UTF_8));
    BuildTarget fooLibTarget = BuildTarget.builder(cellRoot, "//foo", "lib").build();
    HashCode original = buildTargetGraphAndGetHashCodes(parser, fooLibTarget).get(fooLibTarget);
    DefaultTypeCoercerFactory typeCoercerFactory = new DefaultTypeCoercerFactory(ObjectMappers.newDefaultInstance());
    parser = new Parser(new BroadcastEventListener(), cell.getBuckConfig().getView(ParserConfig.class), typeCoercerFactory, new ConstructorArgMarshaller(typeCoercerFactory));
    Path testFooJavaFile = tempDir.newFile("foo/Foo.java");
    Files.write(testFooJavaFile, "// Ceci n'est pas une Javafile\n".getBytes(UTF_8));
    HashCode updated = buildTargetGraphAndGetHashCodes(parser, fooLibTarget).get(fooLibTarget);
    assertNotEquals(original, updated);
}

Example 24 with HashCode

use of com.google.common.hash.HashCode in project buck by facebook.

the class ParserTest method addingDepToTargetChangesHashOfDependingTargetOnly.

@Test
public void addingDepToTargetChangesHashOfDependingTargetOnly() throws Exception {
    tempDir.newFolder("foo");
    Path testFooBuckFile = tempDir.newFile("foo/BUCK");
    Files.write(testFooBuckFile, ("java_library(name = 'lib', deps = [], visibility=['PUBLIC'])\n" + "java_library(name = 'lib2', deps = [], visibility=['PUBLIC'])\n").getBytes(UTF_8));
    BuildTarget fooLibTarget = BuildTarget.builder(cellRoot, "//foo", "lib").build();
    BuildTarget fooLib2Target = BuildTarget.builder(cellRoot, "//foo", "lib2").build();
    ImmutableMap<BuildTarget, HashCode> hashes = buildTargetGraphAndGetHashCodes(parser, fooLibTarget, fooLib2Target);
    HashCode libKey = hashes.get(fooLibTarget);
    HashCode lib2Key = hashes.get(fooLib2Target);
    DefaultTypeCoercerFactory typeCoercerFactory = new DefaultTypeCoercerFactory(ObjectMappers.newDefaultInstance());
    parser = new Parser(new BroadcastEventListener(), cell.getBuckConfig().getView(ParserConfig.class), typeCoercerFactory, new ConstructorArgMarshaller(typeCoercerFactory));
    Files.write(testFooBuckFile, ("java_library(name = 'lib', deps = [], visibility=['PUBLIC'])\n" + "java_library(name = 'lib2', deps = [':lib'], visibility=['PUBLIC'])\n").getBytes(UTF_8));
    hashes = buildTargetGraphAndGetHashCodes(parser, fooLibTarget, fooLib2Target);
    assertEquals(libKey, hashes.get(fooLibTarget));
    assertNotEquals(lib2Key, hashes.get(fooLib2Target));
}

Example 25 with HashCode

use of com.google.common.hash.HashCode in project buck by facebook.

the class ResolverIntegrationTest method shouldSetUpAPrivateLibraryIfGivenAMavenCoordWithoutDeps.

@Test
public void shouldSetUpAPrivateLibraryIfGivenAMavenCoordWithoutDeps() throws Exception {
    resolveWithArtifacts("com.example:no-deps:jar:1.0");
    Path groupDir = thirdParty.resolve("example");
    assertTrue(Files.exists(groupDir));
    Path original = repo.resolve("com/example/no-deps/1.0/no-deps-1.0.jar");
    HashCode expected = MorePaths.asByteSource(original).hash(Hashing.sha1());
    Path jarFile = groupDir.resolve("no-deps-1.0.jar");
    HashCode seen = MorePaths.asByteSource(jarFile).hash(Hashing.sha1());
    assertEquals(expected, seen);
    List<Map<String, Object>> rules = buildFileParser.getAll(groupDir.resolve("BUCK"));
    assertEquals(1, rules.size());
    Map<String, Object> rule = rules.get(0);
    // Name is derived from the project identifier
    assertEquals("no-deps", rule.get("name"));
    // The binary jar should be set
    assertEquals("no-deps-1.0.jar", rule.get("binaryJar"));
    // There was no source jar in the repo
    assertTrue(rule.containsKey("sourceJar"));
    assertNull(rule.get("sourceJar"));
    // It's a library that's requested on the CLI, so it gets full visibility.
    assertEquals(ImmutableList.of("PUBLIC"), rule.get("visibility"));
    // And it doesn't depend on anything
    assertNull(rule.get("deps"));
}