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// Copyright 2017 The Abseil Authors.
//
// 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.
#include "absl/strings/internal/resize_uninitialized.h"
#include "gtest/gtest.h"
namespace {
int resize_call_count = 0;
struct resizable_string {
void resize(size_t) { resize_call_count += 1; }
};
int resize_uninitialized_call_count = 0;
struct resize_uninitializable_string {
void resize(size_t) { resize_call_count += 1; }
void resize_uninitialized(size_t) { resize_uninitialized_call_count += 1; }
};
TEST(ResizeUninit, WithAndWithout) {
resize_call_count = 0;
resize_uninitialized_call_count = 0;
{
resizable_string rs;
EXPECT_EQ(resize_call_count, 0);
EXPECT_EQ(resize_uninitialized_call_count, 0);
EXPECT_FALSE(
absl::strings_internal::STLStringSupportsNontrashingResize(&rs));
EXPECT_EQ(resize_call_count, 0);
EXPECT_EQ(resize_uninitialized_call_count, 0);
absl::strings_internal::STLStringResizeUninitialized(&rs, 237);
EXPECT_EQ(resize_call_count, 1);
EXPECT_EQ(resize_uninitialized_call_count, 0);
}
resize_call_count = 0;
resize_uninitialized_call_count = 0;
{
resize_uninitializable_string rus;
EXPECT_EQ(resize_call_count, 0);
EXPECT_EQ(resize_uninitialized_call_count, 0);
EXPECT_TRUE(
absl::strings_internal::STLStringSupportsNontrashingResize(&rus));
EXPECT_EQ(resize_call_count, 0);
EXPECT_EQ(resize_uninitialized_call_count, 0);
absl::strings_internal::STLStringResizeUninitialized(&rus, 237);
EXPECT_EQ(resize_call_count, 0);
EXPECT_EQ(resize_uninitialized_call_count, 1);
}
}
} // namespace
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