mock-log_unittest.cc

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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::GLOG_ERROR;
using GOOGLE_NAMESPACE::GLOG_INFO;
using GOOGLE_NAMESPACE::GLOG_WARNING;
using GOOGLE_NAMESPACE::glog_testing::ScopedMockLog;
using std::string;
using testing::_;
using testing::EndsWith;
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(GLOG_WARNING, EndsWith("mock-log_unittest.cc"), "Fishy."));
  EXPECT_CALL(log, Log(GLOG_INFO, _, "Working..."))
      .Times(2);
  EXPECT_CALL(log, Log(GLOG_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(GLOG_INFO, __FILE__, "Logging a branch..."))
      .WillOnce(InvokeWithoutArgs(LogTree));
  EXPECT_CALL(log, Log(GLOG_INFO, __FILE__, "Logging the whole tree..."))
      .WillOnce(InvokeWithoutArgs(LogForest));
  EXPECT_CALL(log, Log(GLOG_INFO, __FILE__, "Logging the entire forest."));
  EXPECT_CALL(log, Log(GLOG_INFO, __FILE__, "Logging the entire forest.."));
  EXPECT_CALL(log, Log(GLOG_INFO, __FILE__, "Logging the entire forest..."));
  LogBranch();
}
 
}  // namespace
 
int main(int argc, char **argv) {
  GOOGLE_NAMESPACE::InitGoogleLogging(argv[0]);
  testing::InitGoogleTest(&argc, argv);
  testing::InitGoogleMock(&argc, argv);
 
  return RUN_ALL_TESTS();
}