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// Author: Zhanyong Wan

// Tests the ScopedMockLog class.

#include "mock-log.h"

#include <string>

#include <gmock/gmock.h>

#include <gtest/gtest.h>

namespace {

using GOOGLE_NAMESPACE::INFO;

using GOOGLE_NAMESPACE::WARNING;

using GOOGLE_NAMESPACE::ERROR;

using GOOGLE_NAMESPACE::glog_testing::ScopedMockLog;

using std::string;

using testing::_;

using testing::HasSubstr;

using testing::InSequence;

using testing::InvokeWithoutArgs;

// Tests that ScopedMockLog intercepts LOG()s when it's alive.

TEST(ScopedMockLogTest, InterceptsLog) {

  ScopedMockLog log;

  InSequence s;

  EXPECT_CALL(log, Log(WARNING, HasSubstr("/mock-log_test.cc"), "Fishy."));

  EXPECT_CALL(log, Log(INFO, _, "Working..."))

      .Times(2);

  EXPECT_CALL(log, Log(ERROR, _, "Bad!!"));

  LOG(WARNING) << "Fishy.";

  LOG(INFO) << "Working...";

  LOG(INFO) << "Working...";

  LOG(ERROR) << "Bad!!";

}

void LogBranch() {

  LOG(INFO) << "Logging a branch...";

}

void LogTree() {

  LOG(INFO) << "Logging the whole tree...";

}

void LogForest() {

  LOG(INFO) << "Logging the entire forest.";

  LOG(INFO) << "Logging the entire forest..";

  LOG(INFO) << "Logging the entire forest...";

}

// The purpose of the following test is to verify that intercepting logging

// continues to work properly if a LOG statement is executed within the scope

// of a mocked call.

TEST(ScopedMockLogTest, LogDuringIntercept) {

  ScopedMockLog log;

  InSequence s;

  EXPECT_CALL(log, Log(INFO, __FILE__, "Logging a branch..."))

      .WillOnce(InvokeWithoutArgs(LogTree));

  EXPECT_CALL(log, Log(INFO, __FILE__, "Logging the whole tree..."))

      .WillOnce(InvokeWithoutArgs(LogForest));

  EXPECT_CALL(log, Log(INFO, __FILE__, "Logging the entire forest."));

  EXPECT_CALL(log, Log(INFO, __FILE__, "Logging the entire forest.."));

  EXPECT_CALL(log, Log(INFO, __FILE__, "Logging the entire forest..."));

  LogBranch();

}

}  // namespace

int main(int argc, char **argv) {

  GOOGLE_NAMESPACE::InitGoogleLogging(argv[0]);

  testing::InitGoogleMock(&argc, argv);

  return RUN_ALL_TESTS();

}