tools/aapt2/test/Common.h

/*
 * Copyright (C) 2015 The Android Open Source Project
 *
 * 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.
 */

#ifndef AAPT_TEST_COMMON_H
#define AAPT_TEST_COMMON_H

#include "ConfigDescription.h"
#include "Debug.h"
#include "ResourceTable.h"
#include "ResourceUtils.h"
#include "ValueVisitor.h"
#include "io/File.h"
#include "process/IResourceTableConsumer.h"
#include "util/StringPiece.h"

#include <gtest/gtest.h>
#include <iostream>

//
// GTEST 1.7 doesn't explicitly cast to bool, which causes explicit operators to
// fail to compile.
//
#define AAPT_ASSERT_TRUE(v) ASSERT_TRUE(bool(v))
#define AAPT_ASSERT_FALSE(v) ASSERT_FALSE(bool(v))
#define AAPT_EXPECT_TRUE(v) EXPECT_TRUE(bool(v))
#define AAPT_EXPECT_FALSE(v) EXPECT_FALSE(bool(v))

namespace aapt {
namespace test {

struct DummyDiagnosticsImpl : public IDiagnostics {
  void log(Level level, DiagMessageActual& actualMsg) override {
    switch (level) {
      case Level::Note:
        return;

      case Level::Warn:
        std::cerr << actualMsg.source << ": warn: " << actualMsg.message << "."
                  << std::endl;
        break;

      case Level::Error:
        std::cerr << actualMsg.source << ": error: " << actualMsg.message << "."
                  << std::endl;
        break;
    }
  }
};

inline IDiagnostics* getDiagnostics() {
  static DummyDiagnosticsImpl diag;
  return &diag;
}

inline ResourceName parseNameOrDie(const StringPiece& str) {
  ResourceNameRef ref;
  bool result = ResourceUtils::parseResourceName(str, &ref);
  assert(result && "invalid resource name");
  return ref.toResourceName();
}

inline ConfigDescription parseConfigOrDie(const StringPiece& str) {
  ConfigDescription config;
  bool result = ConfigDescription::parse(str, &config);
  assert(result && "invalid configuration");
  return config;
}

template <typename T>
T* getValueForConfigAndProduct(ResourceTable* table, const StringPiece& resName,
                               const ConfigDescription& config,
                               const StringPiece& product) {
  Maybe<ResourceTable::SearchResult> result =
      table->findResource(parseNameOrDie(resName));
  if (result) {
    ResourceConfigValue* configValue =
        result.value().entry->findValue(config, product);
    if (configValue) {
      return valueCast<T>(configValue->value.get());
    }
  }
  return nullptr;
}

template <typename T>
T* getValueForConfig(ResourceTable* table, const StringPiece& resName,
                     const ConfigDescription& config) {
  return getValueForConfigAndProduct<T>(table, resName, config, {});
}

template <typename T>
T* getValue(ResourceTable* table, const StringPiece& resName) {
  return getValueForConfig<T>(table, resName, {});
}

class TestFile : public io::IFile {
 private:
  Source mSource;

 public:
  explicit TestFile(const StringPiece& path) : mSource(path) {}

  std::unique_ptr<io::IData> openAsData() override { return {}; }

  const Source& getSource() const override { return mSource; }
};

}  // namespace test
}  // namespace aapt

#endif /* AAPT_TEST_COMMON_H */