Work around some unsigned->signed warnings in our tests/.

Thanks to Diego Barrios Romero <eldruin@gmail.com>.

test/gtest-death-test_test.cc

@@ -887,9 +887,9 @@ class MockDeathTestFactory : public DeathTestFactory {
   // Accessors.
   int AssumeRoleCalls() const { return assume_role_calls_; }
   int WaitCalls() const { return wait_calls_; }
-  int PassedCalls() const { return passed_args_.size(); }
+  size_t PassedCalls() const { return passed_args_.size(); }
   bool PassedArgument(int n) const { return passed_args_[n]; }
-  int AbortCalls() const { return abort_args_.size(); }
+  size_t AbortCalls() const { return abort_args_.size(); }
   DeathTest::AbortReason AbortArgument(int n) const {
     return abort_args_[n];
   }
@@ -1050,8 +1050,8 @@ TEST_F(MacroLogicDeathTest, NothingHappens) {
   EXPECT_FALSE(flag);
   EXPECT_EQ(0, factory_->AssumeRoleCalls());
   EXPECT_EQ(0, factory_->WaitCalls());
-  EXPECT_EQ(0, factory_->PassedCalls());
-  EXPECT_EQ(0, factory_->AbortCalls());
+  EXPECT_EQ(0U, factory_->PassedCalls());
+  EXPECT_EQ(0U, factory_->AbortCalls());
   EXPECT_FALSE(factory_->TestDeleted());
 }
 
@@ -1065,9 +1065,9 @@ TEST_F(MacroLogicDeathTest, ChildExitsSuccessfully) {
   EXPECT_FALSE(flag);
   EXPECT_EQ(1, factory_->AssumeRoleCalls());
   EXPECT_EQ(1, factory_->WaitCalls());
-  ASSERT_EQ(1, factory_->PassedCalls());
+  ASSERT_EQ(1U, factory_->PassedCalls());
   EXPECT_FALSE(factory_->PassedArgument(0));
-  EXPECT_EQ(0, factory_->AbortCalls());
+  EXPECT_EQ(0U, factory_->AbortCalls());
   EXPECT_TRUE(factory_->TestDeleted());
 }
 
@@ -1080,9 +1080,9 @@ TEST_F(MacroLogicDeathTest, ChildExitsUnsuccessfully) {
   EXPECT_FALSE(flag);
   EXPECT_EQ(1, factory_->AssumeRoleCalls());
   EXPECT_EQ(1, factory_->WaitCalls());
-  ASSERT_EQ(1, factory_->PassedCalls());
+  ASSERT_EQ(1U, factory_->PassedCalls());
   EXPECT_TRUE(factory_->PassedArgument(0));
-  EXPECT_EQ(0, factory_->AbortCalls());
+  EXPECT_EQ(0U, factory_->AbortCalls());
   EXPECT_TRUE(factory_->TestDeleted());
 }
 
@@ -1096,8 +1096,8 @@ TEST_F(MacroLogicDeathTest, ChildPerformsReturn) {
   EXPECT_TRUE(flag);
   EXPECT_EQ(1, factory_->AssumeRoleCalls());
   EXPECT_EQ(0, factory_->WaitCalls());
-  EXPECT_EQ(0, factory_->PassedCalls());
-  EXPECT_EQ(1, factory_->AbortCalls());
+  EXPECT_EQ(0U, factory_->PassedCalls());
+  EXPECT_EQ(1U, factory_->AbortCalls());
   EXPECT_EQ(DeathTest::TEST_ENCOUNTERED_RETURN_STATEMENT,
             factory_->AbortArgument(0));
   EXPECT_TRUE(factory_->TestDeleted());
@@ -1112,13 +1112,13 @@ TEST_F(MacroLogicDeathTest, ChildDoesNotDie) {
   EXPECT_TRUE(flag);
   EXPECT_EQ(1, factory_->AssumeRoleCalls());
   EXPECT_EQ(0, factory_->WaitCalls());
-  EXPECT_EQ(0, factory_->PassedCalls());
+  EXPECT_EQ(0U, factory_->PassedCalls());
   // This time there are two calls to Abort: one since the test didn't
   // die, and another from the ReturnSentinel when it's destroyed.  The
   // sentinel normally isn't destroyed if a test doesn't die, since
   // _exit(2) is called in that case by ForkingDeathTest, but not by
   // our MockDeathTest.
-  ASSERT_EQ(2, factory_->AbortCalls());
+  ASSERT_EQ(2U, factory_->AbortCalls());
   EXPECT_EQ(DeathTest::TEST_DID_NOT_DIE,
             factory_->AbortArgument(0));
   EXPECT_EQ(DeathTest::TEST_ENCOUNTERED_RETURN_STATEMENT,

test/gtest-listener_test.cc

@@ -176,16 +176,16 @@ using ::testing::internal::EventRecordingListener;
 
 void VerifyResults(const std::vector<std::string>& data,
                    const char* const* expected_data,
-                   int expected_data_size) {
-  const int actual_size = data.size();
+                   size_t expected_data_size) {
+  const size_t actual_size = data.size();
   // If the following assertion fails, a new entry will be appended to
   // data.  Hence we save data.size() first.
   EXPECT_EQ(expected_data_size, actual_size);
 
   // Compares the common prefix.
-  const int shorter_size = expected_data_size <= actual_size ?
+  const size_t shorter_size = expected_data_size <= actual_size ?
       expected_data_size : actual_size;
-  int i = 0;
+  size_t i = 0;
   for (; i < shorter_size; ++i) {
     ASSERT_STREQ(expected_data[i], data[i].c_str())
         << "at position " << i;
@@ -193,7 +193,8 @@ void VerifyResults(const std::vector<std::string>& data,
 
   // Prints extra elements in the actual data.
   for (; i < actual_size; ++i) {
-    printf("  Actual event #%d: %s\n", i, data[i].c_str());
+    printf("  Actual event #%lu: %s\n",
+        static_cast<unsigned long>(i), data[i].c_str());
   }
 }
 

test/gtest-port_test.cc

@@ -1219,11 +1219,11 @@ class DestructorTracker {
   }
 
  private:
-  static int GetNewIndex() {
+  static size_t GetNewIndex() {
     DestructorCall::List().push_back(new DestructorCall);
     return DestructorCall::List().size() - 1;
   }
-  const int index_;
+  const size_t index_;
 
   GTEST_DISALLOW_ASSIGN_(DestructorTracker);
 };