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// Copyright 2011 Google Inc. 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.

#ifndef NINJA_TEST_H_
#define NINJA_TEST_H_

#include <gtest/gtest.h>

#include "ninja.h"

// Support utilites for tests.

struct Node;

/// A base test fixture that includes a State object with a
/// builtin "cat" rule.
struct StateTestWithBuiltinRules : public testing::Test {
  StateTestWithBuiltinRules();
  Node* GetNode(const string& path);

  State state_;
};

void AssertParse(State* state, const char* input);

/// An implementation of DiskInterface that uses an in-memory representation
/// of disk state.  It also logs file accesses and directory creations
/// so it can be used by tests to verify disk access patterns.
struct VirtualFileSystem : public DiskInterface {
  /// "Create" a file with a given mtime and contents.
  void Create(const string& path, int time, const string& contents);

  // DiskInterface
  virtual int Stat(const string& path);
  virtual bool MakeDir(const string& path);
  virtual string ReadFile(const string& path, string* err);
  virtual int RemoveFile(const string& path);

  /// An entry for a single in-memory file.
  struct Entry {
    int mtime;
    string contents;
  };

  vector<string> directories_made_;
  vector<string> files_read_;
  typedef map<string, Entry> FileMap;
  FileMap files_;
  set<string> files_removed_;
};

#endif // NINJA_TEST_H_