Ryan VanderMeulen
807c6f801c
Also add absl/strings/internal/utf8.cc to the sandbox source lists; the newer str_format wide-char path references WideToUtf8. Differential Revision: https://phabricator.services.mozilla.com/D309452
112 lines
3.2 KiB
C++
112 lines
3.2 KiB
C++
// Copyright 2026 The Abseil Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "absl/strings/internal/stringify_stream.h"
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#include <cstddef>
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#include <iomanip>
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#include <ostream>
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#include <sstream>
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#include "gtest/gtest.h"
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#include "absl/base/config.h"
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#include "absl/strings/str_format.h"
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#include "absl/strings/string_view.h"
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namespace absl {
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ABSL_NAMESPACE_BEGIN
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namespace strings_internal {
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namespace {
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// Exercises the Append(size_t, char) overload
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struct AppendNCharsTest {
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size_t count;
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char ch;
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template <typename Sink>
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friend void AbslStringify(Sink& sink, const AppendNCharsTest& t) {
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sink.Append(t.count, t.ch);
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}
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};
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TEST(StringifyStreamTest, AppendNChars) {
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std::ostringstream os;
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StringifyStream(os) << AppendNCharsTest{5, 'a'};
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EXPECT_EQ(os.str(), "aaaaa");
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}
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// Exercises the Append(absl::string_view) overload
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struct AppendStringViewTest {
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absl::string_view v;
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template <typename Sink>
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friend void AbslStringify(Sink& sink, const AppendStringViewTest& t) {
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sink.Append(t.v);
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}
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};
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TEST(StringifyStreamTest, AppendStringView) {
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std::ostringstream os;
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StringifyStream(os) << AppendStringViewTest{"abc"};
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EXPECT_EQ(os.str(), "abc");
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}
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// Exercises AbslFormatFlush(OStringStreamSink*, absl::string_view v)
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struct AbslFormatFlushTest {
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absl::string_view a, b, c;
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template <typename Sink>
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friend void AbslStringify(Sink& sink, const AbslFormatFlushTest& t) {
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absl::Format(&sink, "%s, %s, %s", t.a, t.b, t.c);
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}
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};
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TEST(StringifyStreamTest, AbslFormatFlush) {
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std::ostringstream os;
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StringifyStream(os) << AbslFormatFlushTest{"a", "b", "c"};
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EXPECT_EQ(os.str(), "a, b, c");
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}
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// If overloads of both AbslStringify and operator<< are defined for the type,
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// the operator<< overload should take precedence.
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struct PreferStreamInsertionOverAbslStringifyTest {
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friend std::ostream& operator<<( // NOLINT(clang-diagnostic-unused-function)
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std::ostream& os, const PreferStreamInsertionOverAbslStringifyTest&) {
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return os << "good";
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}
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template <typename Sink>
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friend void AbslStringify // NOLINT(clang-diagnostic-unused-function)
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(Sink& sink, const PreferStreamInsertionOverAbslStringifyTest&) {
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sink.Append("bad");
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}
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};
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TEST(StringifyStreamTest, PreferStreamInsertionOverAbslStringify) {
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std::ostringstream os;
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StringifyStream(os) << PreferStreamInsertionOverAbslStringifyTest{};
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EXPECT_EQ(os.str(), "good");
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}
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TEST(StringifyStreamTest, SupportEndl) {
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std::ostringstream os;
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StringifyStream(os) << std::endl;
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EXPECT_EQ(os.str(), "\n");
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}
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TEST(StringifyStreamTest, SupportSetbase) {
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std::ostringstream os;
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StringifyStream(os) << std::setbase(16) << 255;
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EXPECT_EQ(os.str(), "ff");
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}
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} // namespace
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} // namespace strings_internal
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ABSL_NAMESPACE_END
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} // namespace absl
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