Java tutorial
/* * Copyright 2012-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.apple.project_generator; import static org.hamcrest.Matchers.hasItem; import static org.hamcrest.Matchers.hasSize; import static org.junit.Assert.assertEquals; import static org.junit.Assert.assertNotNull; import static org.junit.Assert.assertNull; import static org.junit.Assert.assertThat; import static org.junit.Assert.fail; import com.facebook.buck.apple.xcode.xcodeproj.PBXBuildFile; import com.facebook.buck.apple.xcode.xcodeproj.PBXBuildPhase; import com.facebook.buck.apple.xcode.xcodeproj.PBXCopyFilesBuildPhase; import com.facebook.buck.apple.xcode.xcodeproj.PBXFileReference; import com.facebook.buck.apple.xcode.xcodeproj.PBXFrameworksBuildPhase; import com.facebook.buck.apple.xcode.xcodeproj.PBXProject; import com.facebook.buck.apple.xcode.xcodeproj.PBXReference; import com.facebook.buck.apple.xcode.xcodeproj.PBXTarget; import com.facebook.buck.apple.xcode.xcodeproj.XCBuildConfiguration; import com.facebook.buck.io.ProjectFilesystem; import com.facebook.buck.model.BuildTarget; import com.facebook.buck.rules.Description; import com.facebook.buck.rules.PathSourcePath; import com.facebook.buck.rules.SourcePath; import com.facebook.buck.testutil.FakeProjectFilesystem; import com.google.common.base.Preconditions; import com.google.common.collect.ImmutableList; import com.google.common.collect.ImmutableMap; import com.google.common.collect.ImmutableSortedSet; import com.google.common.collect.Iterables; import java.lang.reflect.Field; import java.nio.file.Path; import java.nio.file.Paths; import java.util.HashMap; import java.util.Optional; public final class ProjectGeneratorTestUtils { /** * Utility class should not be instantiated. */ private ProjectGeneratorTestUtils() { } public static <T> T createDescriptionArgWithDefaults(Description<T> description) { T arg = description.createUnpopulatedConstructorArg(); for (Field field : arg.getClass().getFields()) { Object value; if (field.getType().isAssignableFrom(ImmutableSortedSet.class)) { value = ImmutableSortedSet.of(); } else if (field.getType().isAssignableFrom(ImmutableList.class)) { value = ImmutableList.of(); } else if (field.getType().isAssignableFrom(ImmutableMap.class)) { value = ImmutableMap.of(); } else if (field.getType().isAssignableFrom(Optional.class)) { value = Optional.empty(); } else if (field.getType().isAssignableFrom(String.class)) { value = ""; } else if (field.getType().isAssignableFrom(Path.class)) { value = Paths.get(""); } else if (field.getType().isAssignableFrom(SourcePath.class)) { value = new PathSourcePath(new FakeProjectFilesystem(), Paths.get("")); } else if (field.getType().isPrimitive()) { // do nothing, these are initialized with a zero value continue; } else { // user should provide continue; } try { field.set(arg, value); } catch (IllegalAccessException e) { throw new RuntimeException(e); } } return arg; } public static PBXTarget assertTargetExistsAndReturnTarget(PBXProject generatedProject, String name) { PBXTarget target = getTargetByName(generatedProject, name); assertNotNull("No generated target with name: " + name, target); return target; } private static PBXTarget getTargetByName(PBXProject generatedProject, String name) { Preconditions.checkNotNull(name); for (PBXTarget target : generatedProject.getTargets()) { if (target.getName().equals(name)) { return target; } } return null; } public static void assertTargetExists(ProjectGenerator generator, String name) { assertNotNull("No generated target with name: " + name, getTargetByName(generator.getGeneratedProject(), name)); } public static void assertTargetDoesNotExists(ProjectGenerator generator, String name) { assertNull("There is generated target with name: " + name, getTargetByName(generator.getGeneratedProject(), name)); } public static void assertHasSingletonFrameworksPhaseWithFrameworkEntries(PBXTarget target, ImmutableList<String> frameworks) { assertHasSingletonPhaseWithEntries(target, PBXFrameworksBuildPhase.class, frameworks); } public static void assertHasSingletonCopyFilesPhaseWithFileEntries(PBXTarget target, ImmutableList<String> files) { assertHasSingletonPhaseWithEntries(target, PBXCopyFilesBuildPhase.class, files); } public static <T extends PBXBuildPhase> void assertHasSingletonPhaseWithEntries(PBXTarget target, final Class<T> cls, ImmutableList<String> entries) { PBXBuildPhase buildPhase = getSingletonPhaseByType(target, cls); assertThat("Phase should have right number of entries", buildPhase.getFiles(), hasSize(entries.size())); for (PBXBuildFile file : buildPhase.getFiles()) { PBXReference.SourceTree sourceTree = file.getFileRef().getSourceTree(); switch (sourceTree) { case GROUP: fail("Should not emit entries with sourceTree <group>"); break; case ABSOLUTE: fail("Should not emit entries with sourceTree <absolute>"); break; // $CASES-OMITTED$ default: String serialized = "$" + sourceTree + "/" + file.getFileRef().getPath(); assertThat("Source tree prefixed file references should exist in list of expected entries.", entries, hasItem(serialized)); break; } } } public static <T extends PBXBuildPhase> T getSingletonPhaseByType(PBXTarget target, final Class<T> cls) { Iterable<PBXBuildPhase> buildPhases = Iterables.filter(target.getBuildPhases(), cls::isInstance); assertEquals("Build phase should be singleton", 1, Iterables.size(buildPhases)); @SuppressWarnings("unchecked") T element = (T) Iterables.getOnlyElement(buildPhases); return element; } public static ImmutableMap<String, String> getBuildSettings(ProjectFilesystem projectFilesystem, BuildTarget buildTarget, PBXTarget target, String config) { XCBuildConfiguration configuration = target.getBuildConfigurationList().getBuildConfigurationsByName() .asMap().get(config); assertEquals(configuration.getBuildSettings().count(), 0); PBXFileReference xcconfigReference = configuration.getBaseConfigurationReference(); Path xcconfigPath = buildTarget.getBasePath().resolve(xcconfigReference.getPath()); String contents = projectFilesystem.readFileIfItExists(xcconfigPath).get(); // Use a HashMap to allow for duplicate keys. HashMap<String, String> builder = new HashMap<String, String>(); for (String line : contents.split("\n")) { String[] parts = line.split(" = "); builder.put(parts[0], parts[1]); } return ImmutableMap.copyOf(builder); } }