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Diffstat (limited to 'absl/log/log_format_test.cc')
| -rw-r--r-- | absl/log/log_format_test.cc | 1872 |
1 files changed, 1872 insertions, 0 deletions
diff --git a/absl/log/log_format_test.cc b/absl/log/log_format_test.cc new file mode 100644 index 00000000..dbad5d97 --- /dev/null +++ b/absl/log/log_format_test.cc @@ -0,0 +1,1872 @@ +// +// Copyright 2022 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 +// +// https://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 <math.h> + +#include <iomanip> +#include <ios> +#include <limits> +#include <ostream> +#include <sstream> +#include <string> +#include <type_traits> + +#ifdef __ANDROID__ +#include <android/api-level.h> +#endif +#include "gmock/gmock.h" +#include "gtest/gtest.h" +#include "absl/log/check.h" +#include "absl/log/internal/test_matchers.h" +#include "absl/log/log.h" +#include "absl/log/scoped_mock_log.h" +#include "absl/strings/match.h" +#include "absl/strings/str_cat.h" +#include "absl/strings/str_format.h" +#include "absl/strings/string_view.h" +#include "absl/types/optional.h" + +namespace { +using ::absl::log_internal::AsString; +using ::absl::log_internal::MatchesOstream; +using ::absl::log_internal::RawEncodedMessage; +using ::absl::log_internal::TextMessage; +using ::absl::log_internal::TextPrefix; +using ::testing::AllOf; +using ::testing::AnyOf; +using ::testing::Each; +using ::testing::EndsWith; +using ::testing::Eq; +using ::testing::Ge; +using ::testing::IsEmpty; +using ::testing::Le; +using ::testing::SizeIs; +using ::testing::Types; + +// Some aspects of formatting streamed data (e.g. pointer handling) are +// implementation-defined. Others are buggy in supported implementations. +// These tests validate that the formatting matches that performed by a +// `std::ostream` and also that the result is one of a list of expected formats. + +std::ostringstream ComparisonStream() { + std::ostringstream str; + str.setf(std::ios_base::showbase | std::ios_base::boolalpha | + std::ios_base::internal); + return str; +} + +TEST(LogFormatTest, NoMessage) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + const int log_line = __LINE__ + 1; + auto do_log = [] { LOG(INFO); }; + + EXPECT_CALL(test_sink, + Send(AllOf(TextMessage(MatchesOstream(ComparisonStream())), + TextPrefix(AsString(EndsWith(absl::StrCat( + " log_format_test.cc:", log_line, "] ")))), + TextMessage(IsEmpty()), + ENCODED_MESSAGE(EqualsProto(R"pb()pb"))))); + + test_sink.StartCapturingLogs(); + do_log(); +} + +template <typename T> +class CharLogFormatTest : public testing::Test {}; +using CharTypes = Types<char, signed char, unsigned char>; +TYPED_TEST_SUITE(CharLogFormatTest, CharTypes); + +TYPED_TEST(CharLogFormatTest, Printable) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + const TypeParam value = 'x'; + auto comparison_stream = ComparisonStream(); + comparison_stream << value; + + EXPECT_CALL( + test_sink, + Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(Eq("x")), + ENCODED_MESSAGE(EqualsProto(R"pb(value { str: "x" })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << value; +} + +TYPED_TEST(CharLogFormatTest, Unprintable) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + constexpr auto value = static_cast<TypeParam>(0xeeu); + auto comparison_stream = ComparisonStream(); + comparison_stream << value; + + EXPECT_CALL( + test_sink, Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(Eq("\xee")), + ENCODED_MESSAGE(EqualsProto(R"pb(value { + str: "\xee" + })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << value; +} + +template <typename T> +class UnsignedIntLogFormatTest : public testing::Test {}; +using UnsignedIntTypes = Types<unsigned short, unsigned int, // NOLINT + unsigned long, unsigned long long>; // NOLINT +TYPED_TEST_SUITE(UnsignedIntLogFormatTest, UnsignedIntTypes); + +TYPED_TEST(UnsignedIntLogFormatTest, Positive) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + const TypeParam value = 224; + auto comparison_stream = ComparisonStream(); + comparison_stream << value; + + EXPECT_CALL( + test_sink, + Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(Eq("224")), + ENCODED_MESSAGE(EqualsProto(R"pb(value { str: "224" })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << value; +} + +TYPED_TEST(UnsignedIntLogFormatTest, BitfieldPositive) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + const struct { + TypeParam bits : 6; + } value{42}; + auto comparison_stream = ComparisonStream(); + comparison_stream << value.bits; + + EXPECT_CALL( + test_sink, + Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(Eq("42")), + ENCODED_MESSAGE(EqualsProto(R"pb(value { str: "42" })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << value.bits; +} + +template <typename T> +class SignedIntLogFormatTest : public testing::Test {}; +using SignedIntTypes = + Types<signed short, signed int, signed long, signed long long>; // NOLINT +TYPED_TEST_SUITE(SignedIntLogFormatTest, SignedIntTypes); + +TYPED_TEST(SignedIntLogFormatTest, Positive) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + const TypeParam value = 224; + auto comparison_stream = ComparisonStream(); + comparison_stream << value; + + EXPECT_CALL( + test_sink, + Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(Eq("224")), + ENCODED_MESSAGE(EqualsProto(R"pb(value { str: "224" })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << value; +} + +TYPED_TEST(SignedIntLogFormatTest, Negative) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + const TypeParam value = -112; + auto comparison_stream = ComparisonStream(); + comparison_stream << value; + + EXPECT_CALL( + test_sink, Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(Eq("-112")), + ENCODED_MESSAGE(EqualsProto(R"pb(value { + str: "-112" + })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << value; +} + +TYPED_TEST(SignedIntLogFormatTest, BitfieldPositive) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + const struct { + TypeParam bits : 6; + } value{21}; + auto comparison_stream = ComparisonStream(); + comparison_stream << value.bits; + + EXPECT_CALL( + test_sink, + Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(Eq("21")), + ENCODED_MESSAGE(EqualsProto(R"pb(value { str: "21" })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << value.bits; +} + +TYPED_TEST(SignedIntLogFormatTest, BitfieldNegative) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + const struct { + TypeParam bits : 6; + } value{-21}; + auto comparison_stream = ComparisonStream(); + comparison_stream << value.bits; + + EXPECT_CALL( + test_sink, + Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(Eq("-21")), + ENCODED_MESSAGE(EqualsProto(R"pb(value { str: "-21" })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << value.bits; +} + +// Ignore these test cases on GCC due to "is too small to hold all values ..." +// warning. +#if !defined(__GNUC__) || defined(__clang__) +// The implementation may choose a signed or unsigned integer type to represent +// this enum, so it may be tested by either `UnsignedEnumLogFormatTest` or +// `SignedEnumLogFormatTest`. +enum MyUnsignedEnum { + MyUnsignedEnum_ZERO = 0, + MyUnsignedEnum_FORTY_TWO = 42, + MyUnsignedEnum_TWO_HUNDRED_TWENTY_FOUR = 224, +}; +enum MyUnsignedIntEnum : unsigned int { + MyUnsignedIntEnum_ZERO = 0, + MyUnsignedIntEnum_FORTY_TWO = 42, + MyUnsignedIntEnum_TWO_HUNDRED_TWENTY_FOUR = 224, +}; + +template <typename T> +class UnsignedEnumLogFormatTest : public testing::Test {}; +using UnsignedEnumTypes = std::conditional< + std::is_signed<std::underlying_type<MyUnsignedEnum>::type>::value, + Types<MyUnsignedIntEnum>, Types<MyUnsignedEnum, MyUnsignedIntEnum>>::type; +TYPED_TEST_SUITE(UnsignedEnumLogFormatTest, UnsignedEnumTypes); + +TYPED_TEST(UnsignedEnumLogFormatTest, Positive) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + const TypeParam value = static_cast<TypeParam>(224); + auto comparison_stream = ComparisonStream(); + comparison_stream << value; + + EXPECT_CALL( + test_sink, + Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(Eq("224")), + ENCODED_MESSAGE(EqualsProto(R"pb(value { str: "224" })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << value; +} + +TYPED_TEST(UnsignedEnumLogFormatTest, BitfieldPositive) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + const struct { + TypeParam bits : 6; + } value{static_cast<TypeParam>(42)}; + auto comparison_stream = ComparisonStream(); + comparison_stream << value.bits; + + EXPECT_CALL( + test_sink, + Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(Eq("42")), + ENCODED_MESSAGE(EqualsProto(R"pb(value { str: "42" })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << value.bits; +} + +enum MySignedEnum { + MySignedEnum_NEGATIVE_ONE_HUNDRED_TWELVE = -112, + MySignedEnum_NEGATIVE_TWENTY_ONE = -21, + MySignedEnum_ZERO = 0, + MySignedEnum_TWENTY_ONE = 21, + MySignedEnum_TWO_HUNDRED_TWENTY_FOUR = 224, +}; +enum MySignedIntEnum : signed int { + MySignedIntEnum_NEGATIVE_ONE_HUNDRED_TWELVE = -112, + MySignedIntEnum_NEGATIVE_TWENTY_ONE = -21, + MySignedIntEnum_ZERO = 0, + MySignedIntEnum_TWENTY_ONE = 21, + MySignedIntEnum_TWO_HUNDRED_TWENTY_FOUR = 224, +}; + +template <typename T> +class SignedEnumLogFormatTest : public testing::Test {}; +using SignedEnumTypes = std::conditional< + std::is_signed<std::underlying_type<MyUnsignedEnum>::type>::value, + Types<MyUnsignedEnum, MySignedEnum, MySignedIntEnum>, + Types<MySignedEnum, MySignedIntEnum>>::type; +TYPED_TEST_SUITE(SignedEnumLogFormatTest, SignedEnumTypes); + +TYPED_TEST(SignedEnumLogFormatTest, Positive) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + const TypeParam value = static_cast<TypeParam>(224); + auto comparison_stream = ComparisonStream(); + comparison_stream << value; + + EXPECT_CALL( + test_sink, + Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(Eq("224")), + ENCODED_MESSAGE(EqualsProto(R"pb(value { str: "224" })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << value; +} + +TYPED_TEST(SignedEnumLogFormatTest, Negative) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + const TypeParam value = static_cast<TypeParam>(-112); + auto comparison_stream = ComparisonStream(); + comparison_stream << value; + + EXPECT_CALL( + test_sink, Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(Eq("-112")), + ENCODED_MESSAGE(EqualsProto(R"pb(value { + str: "-112" + })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << value; +} + +TYPED_TEST(SignedEnumLogFormatTest, BitfieldPositive) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + const struct { + TypeParam bits : 6; + } value{static_cast<TypeParam>(21)}; + auto comparison_stream = ComparisonStream(); + comparison_stream << value.bits; + + EXPECT_CALL( + test_sink, + Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(Eq("21")), + ENCODED_MESSAGE(EqualsProto(R"pb(value { str: "21" })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << value.bits; +} + +TYPED_TEST(SignedEnumLogFormatTest, BitfieldNegative) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + const struct { + TypeParam bits : 6; + } value{static_cast<TypeParam>(-21)}; + auto comparison_stream = ComparisonStream(); + comparison_stream << value.bits; + + EXPECT_CALL( + test_sink, + Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(Eq("-21")), + ENCODED_MESSAGE(EqualsProto(R"pb(value { str: "-21" })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << value.bits; +} +#endif + +TEST(FloatLogFormatTest, Positive) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + const float value = 6.02e23f; + auto comparison_stream = ComparisonStream(); + comparison_stream << value; + + EXPECT_CALL(test_sink, + Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(Eq("6.02e+23")), + ENCODED_MESSAGE(EqualsProto(R"pb(value { + str: "6.02e+23" + })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << value; +} + +TEST(FloatLogFormatTest, Negative) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + const float value = -6.02e23f; + auto comparison_stream = ComparisonStream(); + comparison_stream << value; + + EXPECT_CALL(test_sink, + Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(Eq("-6.02e+23")), + ENCODED_MESSAGE(EqualsProto(R"pb(value { + str: "-6.02e+23" + })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << value; +} + +TEST(FloatLogFormatTest, NegativeExponent) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + const float value = 6.02e-23f; + auto comparison_stream = ComparisonStream(); + comparison_stream << value; + + EXPECT_CALL(test_sink, + Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(Eq("6.02e-23")), + ENCODED_MESSAGE(EqualsProto(R"pb(value { + str: "6.02e-23" + })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << value; +} + +TEST(DoubleLogFormatTest, Positive) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + const double value = 6.02e23; + auto comparison_stream = ComparisonStream(); + comparison_stream << value; + + EXPECT_CALL(test_sink, + Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(Eq("6.02e+23")), + ENCODED_MESSAGE(EqualsProto(R"pb(value { + str: "6.02e+23" + })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << value; +} + +TEST(DoubleLogFormatTest, Negative) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + const double value = -6.02e23; + auto comparison_stream = ComparisonStream(); + comparison_stream << value; + + EXPECT_CALL(test_sink, + Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(Eq("-6.02e+23")), + ENCODED_MESSAGE(EqualsProto(R"pb(value { + str: "-6.02e+23" + })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << value; +} + +TEST(DoubleLogFormatTest, NegativeExponent) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + const double value = 6.02e-23; + auto comparison_stream = ComparisonStream(); + comparison_stream << value; + + EXPECT_CALL(test_sink, + Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(Eq("6.02e-23")), + ENCODED_MESSAGE(EqualsProto(R"pb(value { + str: "6.02e-23" + })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << value; +} + +template <typename T> +class FloatingPointLogFormatTest : public testing::Test {}; +using FloatingPointTypes = Types<float, double>; +TYPED_TEST_SUITE(FloatingPointLogFormatTest, FloatingPointTypes); + +TYPED_TEST(FloatingPointLogFormatTest, Zero) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + const TypeParam value = 0.0; + auto comparison_stream = ComparisonStream(); + comparison_stream << value; + + EXPECT_CALL( + test_sink, + Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(Eq("0")), + ENCODED_MESSAGE(EqualsProto(R"pb(value { str: "0" })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << value; +} + +TYPED_TEST(FloatingPointLogFormatTest, Integer) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + const TypeParam value = 1.0; + auto comparison_stream = ComparisonStream(); + comparison_stream << value; + + EXPECT_CALL( + test_sink, + Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(Eq("1")), + ENCODED_MESSAGE(EqualsProto(R"pb(value { str: "1" })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << value; +} + +TYPED_TEST(FloatingPointLogFormatTest, Infinity) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + const TypeParam value = std::numeric_limits<TypeParam>::infinity(); + auto comparison_stream = ComparisonStream(); + comparison_stream << value; + + EXPECT_CALL( + test_sink, + Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(AnyOf(Eq("inf"), Eq("Inf"))), + ENCODED_MESSAGE(EqualsProto(R"pb(value { str: "inf" })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << value; +} + +TYPED_TEST(FloatingPointLogFormatTest, NegativeInfinity) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + const TypeParam value = -std::numeric_limits<TypeParam>::infinity(); + auto comparison_stream = ComparisonStream(); + comparison_stream << value; + + EXPECT_CALL( + test_sink, Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(AnyOf(Eq("-inf"), Eq("-Inf"))), + ENCODED_MESSAGE(EqualsProto(R"pb(value { + str: "-inf" + })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << value; +} + +TYPED_TEST(FloatingPointLogFormatTest, NaN) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + const TypeParam value = std::numeric_limits<TypeParam>::quiet_NaN(); + auto comparison_stream = ComparisonStream(); + comparison_stream << value; + + EXPECT_CALL( + test_sink, + Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(AnyOf(Eq("nan"), Eq("NaN"))), + ENCODED_MESSAGE(EqualsProto(R"pb(value { str: "nan" })pb"))))); + test_sink.StartCapturingLogs(); + LOG(INFO) << value; +} + +TYPED_TEST(FloatingPointLogFormatTest, NegativeNaN) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + const TypeParam value = + std::copysign(std::numeric_limits<TypeParam>::quiet_NaN(), -1.0); + auto comparison_stream = ComparisonStream(); + comparison_stream << value; + + EXPECT_CALL( + test_sink, + Send(AllOf( + TextMessage(MatchesOstream(comparison_stream)), + TextMessage(AnyOf(Eq("-nan"), Eq("nan"), Eq("NaN"), Eq("-nan(ind)"))), + ENCODED_MESSAGE( + AnyOf(EqualsProto(R"pb(value { str: "-nan" })pb"), + EqualsProto(R"pb(value { str: "nan" })pb"), + EqualsProto(R"pb(value { str: "-nan(ind)" })pb")))))); + test_sink.StartCapturingLogs(); + LOG(INFO) << value; +} + +template <typename T> +class VoidPtrLogFormatTest : public testing::Test {}; +using VoidPtrTypes = Types<void *, const void *>; +TYPED_TEST_SUITE(VoidPtrLogFormatTest, VoidPtrTypes); + +TYPED_TEST(VoidPtrLogFormatTest, Null) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + const TypeParam value = nullptr; + auto comparison_stream = ComparisonStream(); + comparison_stream << value; + + EXPECT_CALL( + test_sink, + Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(AnyOf(Eq("(nil)"), Eq("0"), Eq("0x0"), + Eq("00000000"), Eq("0000000000000000")))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << value; +} + +TYPED_TEST(VoidPtrLogFormatTest, NonNull) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + const TypeParam value = reinterpret_cast<TypeParam>(0xdeadbeefULL); + auto comparison_stream = ComparisonStream(); + comparison_stream << value; + + EXPECT_CALL( + test_sink, + Send(AllOf( + TextMessage(MatchesOstream(comparison_stream)), + TextMessage( + AnyOf(Eq("0xdeadbeef"), Eq("DEADBEEF"), Eq("00000000DEADBEEF"))), + ENCODED_MESSAGE(AnyOf( + EqualsProto(R"pb(value { str: "0xdeadbeef" })pb"), + EqualsProto(R"pb(value { str: "00000000DEADBEEF" })pb")))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << value; +} + +template <typename T> +class VolatilePtrLogFormatTest : public testing::Test {}; +using VolatilePtrTypes = + Types<volatile void*, const volatile void*, volatile char*, + const volatile char*, volatile signed char*, + const volatile signed char*, volatile unsigned char*, + const volatile unsigned char*>; +TYPED_TEST_SUITE(VolatilePtrLogFormatTest, VolatilePtrTypes); + +TYPED_TEST(VolatilePtrLogFormatTest, Null) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + const TypeParam value = nullptr; + auto comparison_stream = ComparisonStream(); + comparison_stream << value; + + EXPECT_CALL( + test_sink, Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(Eq("false")), + ENCODED_MESSAGE(EqualsProto(R"pb(value { + str: "false" + })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << value; +} + +TYPED_TEST(VolatilePtrLogFormatTest, NonNull) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + const TypeParam value = reinterpret_cast<TypeParam>(0xdeadbeefLL); + auto comparison_stream = ComparisonStream(); + comparison_stream << value; + + EXPECT_CALL( + test_sink, Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(Eq("true")), + ENCODED_MESSAGE(EqualsProto(R"pb(value { + str: "true" + })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << value; +} + +template <typename T> +class CharPtrLogFormatTest : public testing::Test {}; +using CharPtrTypes = Types<char, const char, signed char, const signed char, + unsigned char, const unsigned char>; +TYPED_TEST_SUITE(CharPtrLogFormatTest, CharPtrTypes); + +TYPED_TEST(CharPtrLogFormatTest, Null) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + // Streaming `([cv] char *)nullptr` into a `std::ostream` is UB, and some C++ + // standard library implementations choose to crash. We take measures to log + // something useful instead of crashing, even when that differs from the + // standard library in use (and thus the behavior of `std::ostream`). + TypeParam* const value = nullptr; + + EXPECT_CALL( + test_sink, + Send(AllOf( + // `MatchesOstream` deliberately omitted since we deliberately differ. + TextMessage(Eq("(null)")), + ENCODED_MESSAGE(EqualsProto(R"pb(value { str: "(null)" })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << value; +} + +TYPED_TEST(CharPtrLogFormatTest, NonNull) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + TypeParam data[] = {'v', 'a', 'l', 'u', 'e', '\0'}; + TypeParam* const value = data; + auto comparison_stream = ComparisonStream(); + comparison_stream << value; + + EXPECT_CALL( + test_sink, Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(Eq("value")), + ENCODED_MESSAGE(EqualsProto(R"pb(value { + str: "value" + })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << value; +} + +TEST(BoolLogFormatTest, True) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + const bool value = true; + auto comparison_stream = ComparisonStream(); + comparison_stream << value; + + EXPECT_CALL( + test_sink, Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(Eq("true")), + ENCODED_MESSAGE(EqualsProto(R"pb(value { + str: "true" + })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << value; +} + +TEST(BoolLogFormatTest, False) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + const bool value = false; + auto comparison_stream = ComparisonStream(); + comparison_stream << value; + + EXPECT_CALL( + test_sink, Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(Eq("false")), + ENCODED_MESSAGE(EqualsProto(R"pb(value { + str: "false" + })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << value; +} + +TEST(LogFormatTest, StringLiteral) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + auto comparison_stream = ComparisonStream(); + comparison_stream << "value"; + + EXPECT_CALL(test_sink, + Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(Eq("value")), + ENCODED_MESSAGE(EqualsProto(R"pb(value { + literal: "value" + })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << "value"; +} + +TEST(LogFormatTest, CharArray) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + char value[] = "value"; + auto comparison_stream = ComparisonStream(); + comparison_stream << value; + + EXPECT_CALL( + test_sink, Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(Eq("value")), + ENCODED_MESSAGE(EqualsProto(R"pb(value { + str: "value" + })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << value; +} + +class CustomClass {}; +std::ostream& operator<<(std::ostream& os, const CustomClass&) { + return os << "CustomClass{}"; +} + +TEST(LogFormatTest, Custom) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + CustomClass value; + auto comparison_stream = ComparisonStream(); + comparison_stream << value; + + EXPECT_CALL(test_sink, + Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(Eq("CustomClass{}")), + ENCODED_MESSAGE(EqualsProto(R"pb(value { + str: "CustomClass{}" + })pb"))))); + test_sink.StartCapturingLogs(); + LOG(INFO) << value; +} + +class CustomClassNonCopyable { + public: + CustomClassNonCopyable() = default; + CustomClassNonCopyable(const CustomClassNonCopyable&) = delete; + CustomClassNonCopyable& operator=(const CustomClassNonCopyable&) = delete; +}; +std::ostream& operator<<(std::ostream& os, const CustomClassNonCopyable&) { + return os << "CustomClassNonCopyable{}"; +} + +TEST(LogFormatTest, CustomNonCopyable) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + CustomClassNonCopyable value; + auto comparison_stream = ComparisonStream(); + comparison_stream << value; + + EXPECT_CALL( + test_sink, + Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(Eq("CustomClassNonCopyable{}")), + ENCODED_MESSAGE(EqualsProto( + R"pb(value { str: "CustomClassNonCopyable{}" })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << value; +} + +struct Point { + template <typename Sink> + friend void AbslStringify(Sink& sink, const Point& p) { + absl::Format(&sink, "(%d, %d)", p.x, p.y); + } + + int x = 10; + int y = 20; +}; + +TEST(LogFormatTest, AbslStringifyExample) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + Point p; + + EXPECT_CALL( + test_sink, + Send(AllOf( + TextMessage(Eq("(10, 20)")), TextMessage(Eq(absl::StrCat(p))), + ENCODED_MESSAGE(EqualsProto(R"pb(value { str: "(10, 20)" })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << p; +} + +struct PointWithAbslStringifiyAndOstream { + template <typename Sink> + friend void AbslStringify(Sink& sink, + const PointWithAbslStringifiyAndOstream& p) { + absl::Format(&sink, "(%d, %d)", p.x, p.y); + } + + int x = 10; + int y = 20; +}; + +ABSL_ATTRIBUTE_UNUSED std::ostream& operator<<( + std::ostream& os, const PointWithAbslStringifiyAndOstream&) { + return os << "Default to AbslStringify()"; +} + +TEST(LogFormatTest, CustomWithAbslStringifyAndOstream) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + PointWithAbslStringifiyAndOstream p; + + EXPECT_CALL( + test_sink, + Send(AllOf( + TextMessage(Eq("(10, 20)")), TextMessage(Eq(absl::StrCat(p))), + ENCODED_MESSAGE(EqualsProto(R"pb(value { str: "(10, 20)" })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << p; +} + +struct PointStreamsNothing { + template <typename Sink> + friend void AbslStringify(Sink&, const PointStreamsNothing&) {} + + int x = 10; + int y = 20; +}; + +TEST(LogFormatTest, AbslStringifyStreamsNothing) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + PointStreamsNothing p; + + EXPECT_CALL( + test_sink, + Send(AllOf(TextMessage(Eq("77")), TextMessage(Eq(absl::StrCat(p, 77))), + ENCODED_MESSAGE(EqualsProto(R"pb(value { str: "77" })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << p << 77; +} + +struct PointMultipleAppend { + template <typename Sink> + friend void AbslStringify(Sink& sink, const PointMultipleAppend& p) { + sink.Append("("); + sink.Append(absl::StrCat(p.x, ", ", p.y, ")")); + } + + int x = 10; + int y = 20; +}; + +TEST(LogFormatTest, AbslStringifyMultipleAppend) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + PointMultipleAppend p; + + EXPECT_CALL( + test_sink, + Send(AllOf( + TextMessage(Eq("(10, 20)")), TextMessage(Eq(absl::StrCat(p))), + ENCODED_MESSAGE(EqualsProto(R"pb(value { str: "(" } + value { str: "10, 20)" })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << p; +} + +TEST(ManipulatorLogFormatTest, BoolAlphaTrue) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + const bool value = true; + auto comparison_stream = ComparisonStream(); + comparison_stream << std::noboolalpha << value << " " // + << std::boolalpha << value << " " // + << std::noboolalpha << value; + + EXPECT_CALL(test_sink, + Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(Eq("1 true 1")), + ENCODED_MESSAGE(EqualsProto( + R"pb(value { str: "1" } + value { literal: " " } + value { str: "true" } + value { literal: " " } + value { str: "1" })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << std::noboolalpha << value << " " // + << std::boolalpha << value << " " // + << std::noboolalpha << value; +} + +TEST(ManipulatorLogFormatTest, BoolAlphaFalse) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + const bool value = false; + auto comparison_stream = ComparisonStream(); + comparison_stream << std::noboolalpha << value << " " // + << std::boolalpha << value << " " // + << std::noboolalpha << value; + + EXPECT_CALL(test_sink, + Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(Eq("0 false 0")), + ENCODED_MESSAGE(EqualsProto( + R"pb(value { str: "0" } + value { literal: " " } + value { str: "false" } + value { literal: " " } + value { str: "0" })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << std::noboolalpha << value << " " // + << std::boolalpha << value << " " // + << std::noboolalpha << value; +} + +TEST(ManipulatorLogFormatTest, ShowPoint) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + const double value = 77.0; + auto comparison_stream = ComparisonStream(); + comparison_stream << std::noshowpoint << value << " " // + << std::showpoint << value << " " // + << std::noshowpoint << value; + + EXPECT_CALL( + test_sink, + Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(Eq("77 77.0000 77")), + ENCODED_MESSAGE(EqualsProto(R"pb(value { str: "77" } + value { literal: " " } + value { str: "77.0000" } + value { literal: " " } + value { str: "77" })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << std::noshowpoint << value << " " // + << std::showpoint << value << " " // + << std::noshowpoint << value; +} + +TEST(ManipulatorLogFormatTest, ShowPos) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + const int value = 77; + auto comparison_stream = ComparisonStream(); + comparison_stream << std::noshowpos << value << " " // + << std::showpos << value << " " // + << std::noshowpos << value; + + EXPECT_CALL( + test_sink, + Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(Eq("77 +77 77")), + ENCODED_MESSAGE(EqualsProto(R"pb(value { str: "77" } + value { literal: " " } + value { str: "+77" } + value { literal: " " } + value { str: "77" })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << std::noshowpos << value << " " // + << std::showpos << value << " " // + << std::noshowpos << value; +} + +TEST(ManipulatorLogFormatTest, UppercaseFloat) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + const double value = 7.7e7; + auto comparison_stream = ComparisonStream(); + comparison_stream << std::nouppercase << value << " " // + << std::uppercase << value << " " // + << std::nouppercase << value; + + EXPECT_CALL(test_sink, + Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(Eq("7.7e+07 7.7E+07 7.7e+07")), + ENCODED_MESSAGE(EqualsProto( + R"pb(value { str: "7.7e+07" } + value { literal: " " } + value { str: "7.7E+07" } + value { literal: " " } + value { str: "7.7e+07" })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << std::nouppercase << value << " " // + << std::uppercase << value << " " // + << std::nouppercase << value; +} + +TEST(ManipulatorLogFormatTest, Hex) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + const int value = 0x77; + auto comparison_stream = ComparisonStream(); + comparison_stream << std::hex << value; + + EXPECT_CALL( + test_sink, Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(Eq("0x77")), + ENCODED_MESSAGE(EqualsProto(R"pb(value { + str: "0x77" + })pb"))))); + test_sink.StartCapturingLogs(); + LOG(INFO) << std::hex << value; +} + +TEST(ManipulatorLogFormatTest, Oct) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + const int value = 077; + auto comparison_stream = ComparisonStream(); + comparison_stream << std::oct << value; + + EXPECT_CALL( + test_sink, + Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(Eq("077")), + ENCODED_MESSAGE(EqualsProto(R"pb(value { str: "077" })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << std::oct << value; +} + +TEST(ManipulatorLogFormatTest, Dec) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + const int value = 77; + auto comparison_stream = ComparisonStream(); + comparison_stream << std::hex << std::dec << value; + + EXPECT_CALL( + test_sink, + Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(Eq("77")), + ENCODED_MESSAGE(EqualsProto(R"pb(value { str: "77" })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << std::hex << std::dec << value; +} + +TEST(ManipulatorLogFormatTest, ShowbaseHex) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + const int value = 0x77; + auto comparison_stream = ComparisonStream(); + comparison_stream << std::hex // + << std::noshowbase << value << " " // + << std::showbase << value << " " // + << std::noshowbase << value; + + EXPECT_CALL( + test_sink, + Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(Eq("77 0x77 77")), + ENCODED_MESSAGE(EqualsProto(R"pb(value { str: "77" } + value { literal: " " } + value { str: "0x77" } + value { literal: " " } + value { str: "77" })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << std::hex // + << std::noshowbase << value << " " // + << std::showbase << value << " " // + << std::noshowbase << value; +} + +TEST(ManipulatorLogFormatTest, ShowbaseOct) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + const int value = 077; + auto comparison_stream = ComparisonStream(); + comparison_stream << std::oct // + << std::noshowbase << value << " " // + << std::showbase << value << " " // + << std::noshowbase << value; + + EXPECT_CALL( + test_sink, + Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(Eq("77 077 77")), + ENCODED_MESSAGE(EqualsProto(R"pb(value { str: "77" } + value { literal: " " } + value { str: "077" } + value { literal: " " } + value { str: "77" })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << std::oct // + << std::noshowbase << value << " " // + << std::showbase << value << " " // + << std::noshowbase << value; +} + +TEST(ManipulatorLogFormatTest, UppercaseHex) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + const int value = 0xbeef; + auto comparison_stream = ComparisonStream(); + comparison_stream // + << std::hex // + << std::nouppercase << value << " " // + << std::uppercase << value << " " // + << std::nouppercase << value; + + EXPECT_CALL(test_sink, + Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(Eq("0xbeef 0XBEEF 0xbeef")), + ENCODED_MESSAGE(EqualsProto( + R"pb(value { str: "0xbeef" } + value { literal: " " } + value { str: "0XBEEF" } + value { literal: " " } + value { str: "0xbeef" })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << std::hex // + << std::nouppercase << value << " " // + << std::uppercase << value << " " // + << std::nouppercase << value; +} + +TEST(ManipulatorLogFormatTest, FixedFloat) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + const double value = 7.7e7; + auto comparison_stream = ComparisonStream(); + comparison_stream << std::fixed << value; + + EXPECT_CALL( + test_sink, + Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(Eq("77000000.000000")), + ENCODED_MESSAGE(EqualsProto(R"pb(value { + str: "77000000.000000" + })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << std::fixed << value; +} + +TEST(ManipulatorLogFormatTest, ScientificFloat) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + const double value = 7.7e7; + auto comparison_stream = ComparisonStream(); + comparison_stream << std::scientific << value; + + EXPECT_CALL(test_sink, + Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(Eq("7.700000e+07")), + ENCODED_MESSAGE(EqualsProto(R"pb(value { + str: "7.700000e+07" + })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << std::scientific << value; +} + +#if defined(__BIONIC__) && (!defined(__ANDROID_API__) || __ANDROID_API__ < 22) +// Bionic doesn't support `%a` until API 22, so this prints 'a' even if the +// C++ standard library implements it correctly (by forwarding to printf). +#elif defined(__GLIBCXX__) && __cplusplus < 201402L +// libstdc++ shipped C++11 support without `std::hexfloat`. +#else +TEST(ManipulatorLogFormatTest, FixedAndScientificFloat) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + const double value = 7.7e7; + auto comparison_stream = ComparisonStream(); + comparison_stream << std::setiosflags(std::ios_base::scientific | + std::ios_base::fixed) + << value; + + EXPECT_CALL( + test_sink, + Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(AnyOf(Eq("0x1.25bb50p+26"), Eq("0x1.25bb5p+26"), + Eq("0x1.25bb500000000p+26"))), + ENCODED_MESSAGE( + AnyOf(EqualsProto(R"pb(value { str: "0x1.25bb5p+26" })pb"), + EqualsProto(R"pb(value { + str: "0x1.25bb500000000p+26" + })pb")))))); + + test_sink.StartCapturingLogs(); + + // This combination should mean the same thing as `std::hexfloat`. + LOG(INFO) << std::setiosflags(std::ios_base::scientific | + std::ios_base::fixed) + << value; +} +#endif + +#if defined(__BIONIC__) && (!defined(__ANDROID_API__) || __ANDROID_API__ < 22) +// Bionic doesn't support `%a` until API 22, so this prints 'a' even if the C++ +// standard library supports `std::hexfloat` (by forwarding to printf). +#elif defined(__GLIBCXX__) && __cplusplus < 201402L +// libstdc++ shipped C++11 support without `std::hexfloat`. +#else +TEST(ManipulatorLogFormatTest, HexfloatFloat) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + const double value = 7.7e7; + auto comparison_stream = ComparisonStream(); + comparison_stream << std::hexfloat << value; + + EXPECT_CALL( + test_sink, + Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(AnyOf(Eq("0x1.25bb50p+26"), Eq("0x1.25bb5p+26"), + Eq("0x1.25bb500000000p+26"))), + ENCODED_MESSAGE( + AnyOf(EqualsProto(R"pb(value { str: "0x1.25bb5p+26" })pb"), + EqualsProto(R"pb(value { + str: "0x1.25bb500000000p+26" + })pb")))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << std::hexfloat << value; +} +#endif + +TEST(ManipulatorLogFormatTest, DefaultFloatFloat) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + const double value = 7.7e7; + auto comparison_stream = ComparisonStream(); + comparison_stream << std::hexfloat << std::defaultfloat << value; + + EXPECT_CALL(test_sink, + Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(Eq("7.7e+07")), + ENCODED_MESSAGE(EqualsProto(R"pb(value { + str: "7.7e+07" + })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << std::hexfloat << std::defaultfloat << value; +} + +TEST(ManipulatorLogFormatTest, Ends) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + auto comparison_stream = ComparisonStream(); + comparison_stream << std::ends; + + EXPECT_CALL( + test_sink, + Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(Eq(absl::string_view("\0", 1))), + ENCODED_MESSAGE(EqualsProto(R"pb(value { str: "\0" })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << std::ends; +} + +TEST(ManipulatorLogFormatTest, Endl) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + auto comparison_stream = ComparisonStream(); + comparison_stream << std::endl; + + EXPECT_CALL( + test_sink, + Send(AllOf( + TextMessage(MatchesOstream(comparison_stream)), + TextMessage(Eq("\n")), + ENCODED_MESSAGE(EqualsProto(R"pb(value { str: "\n" })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << std::endl; +} + +TEST(ManipulatorLogFormatTest, SetIosFlags) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + const int value = 0x77; + auto comparison_stream = ComparisonStream(); + comparison_stream << std::resetiosflags(std::ios_base::basefield) + << std::setiosflags(std::ios_base::hex) << value << " " // + << std::resetiosflags(std::ios_base::basefield) + << std::setiosflags(std::ios_base::dec) << value; + + EXPECT_CALL( + test_sink, + Send(AllOf( + TextMessage(MatchesOstream(comparison_stream)), + TextMessage(Eq("0x77 119")), + // `std::setiosflags` and `std::resetiosflags` aren't manipulators. + // We're unable to distinguish their return type(s) from arbitrary + // user-defined types and thus don't suppress the empty str value. + ENCODED_MESSAGE(EqualsProto(R"pb(value { str: "0x77" } + value { literal: " " } + value { str: "119" } + )pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << std::resetiosflags(std::ios_base::basefield) + << std::setiosflags(std::ios_base::hex) << value << " " // + << std::resetiosflags(std::ios_base::basefield) + << std::setiosflags(std::ios_base::dec) << value; +} + +TEST(ManipulatorLogFormatTest, SetBase) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + const int value = 0x77; + auto comparison_stream = ComparisonStream(); + comparison_stream << std::setbase(16) << value << " " // + << std::setbase(0) << value; + + EXPECT_CALL( + test_sink, + Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(Eq("0x77 119")), + // `std::setbase` isn't a manipulator. We're unable to + // distinguish its return type from arbitrary user-defined + // types and thus don't suppress the empty str value. + ENCODED_MESSAGE(EqualsProto( + R"pb(value { str: "0x77" } + value { literal: " " } + value { str: "119" })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << std::setbase(16) << value << " " // + << std::setbase(0) << value; +} + +TEST(ManipulatorLogFormatTest, SetPrecision) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + const double value = 6.022140857e23; + auto comparison_stream = ComparisonStream(); + comparison_stream << std::setprecision(4) << value; + + EXPECT_CALL( + test_sink, + Send(AllOf( + TextMessage(MatchesOstream(comparison_stream)), + TextMessage(Eq("6.022e+23")), + // `std::setprecision` isn't a manipulator. We're unable to + // distinguish its return type from arbitrary user-defined + // types and thus don't suppress the empty str value. + ENCODED_MESSAGE(EqualsProto(R"pb(value { str: "6.022e+23" })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << std::setprecision(4) << value; +} + +TEST(ManipulatorLogFormatTest, SetPrecisionOverflow) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + const double value = 6.022140857e23; + auto comparison_stream = ComparisonStream(); + comparison_stream << std::setprecision(200) << value; + + EXPECT_CALL( + test_sink, + Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(Eq("602214085700000015187968")), + ENCODED_MESSAGE(EqualsProto( + R"pb(value { str: "602214085700000015187968" })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << std::setprecision(200) << value; +} + +TEST(ManipulatorLogFormatTest, SetW) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + const int value = 77; + auto comparison_stream = ComparisonStream(); + comparison_stream << std::setw(8) << value; + + EXPECT_CALL( + test_sink, + Send(AllOf( + TextMessage(MatchesOstream(comparison_stream)), + TextMessage(Eq(" 77")), + // `std::setw` isn't a manipulator. We're unable to + // distinguish its return type from arbitrary user-defined + // types and thus don't suppress the empty str value. + ENCODED_MESSAGE(EqualsProto(R"pb(value { str: " 77" })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << std::setw(8) << value; +} + +TEST(ManipulatorLogFormatTest, Left) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + const int value = -77; + auto comparison_stream = ComparisonStream(); + comparison_stream << std::left << std::setw(8) << value; + + EXPECT_CALL(test_sink, + Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(Eq("-77 ")), + ENCODED_MESSAGE(EqualsProto(R"pb(value { + str: "-77 " + })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << std::left << std::setw(8) << value; +} + +TEST(ManipulatorLogFormatTest, Right) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + const int value = -77; + auto comparison_stream = ComparisonStream(); + comparison_stream << std::right << std::setw(8) << value; + + EXPECT_CALL(test_sink, + Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(Eq(" -77")), + ENCODED_MESSAGE(EqualsProto(R"pb(value { + str: " -77" + })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << std::right << std::setw(8) << value; +} + +TEST(ManipulatorLogFormatTest, Internal) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + const int value = -77; + auto comparison_stream = ComparisonStream(); + comparison_stream << std::internal << std::setw(8) << value; + + EXPECT_CALL(test_sink, + Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(Eq("- 77")), + ENCODED_MESSAGE(EqualsProto(R"pb(value { + str: "- 77" + })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << std::internal << std::setw(8) << value; +} + +TEST(ManipulatorLogFormatTest, SetFill) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + const int value = 77; + auto comparison_stream = ComparisonStream(); + comparison_stream << std::setfill('0') << std::setw(8) << value; + + EXPECT_CALL(test_sink, + Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(Eq("00000077")), + // `std::setfill` isn't a manipulator. We're + // unable to distinguish its return + // type from arbitrary user-defined types and + // thus don't suppress the empty str value. + ENCODED_MESSAGE(EqualsProto(R"pb(value { + str: "00000077" + })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << std::setfill('0') << std::setw(8) << value; +} + +class FromCustomClass {}; +std::ostream& operator<<(std::ostream& os, const FromCustomClass&) { + return os << "FromCustomClass{}" << std::hex; +} + +TEST(ManipulatorLogFormatTest, FromCustom) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + FromCustomClass value; + auto comparison_stream = ComparisonStream(); + comparison_stream << value << " " << 0x77; + + EXPECT_CALL(test_sink, + Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(Eq("FromCustomClass{} 0x77")), + ENCODED_MESSAGE(EqualsProto( + R"pb(value { str: "FromCustomClass{}" } + value { literal: " " } + value { str: "0x77" })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << value << " " << 0x77; +} + +class StreamsNothing {}; +std::ostream& operator<<(std::ostream& os, const StreamsNothing&) { return os; } + +TEST(ManipulatorLogFormatTest, CustomClassStreamsNothing) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + StreamsNothing value; + auto comparison_stream = ComparisonStream(); + comparison_stream << value << 77; + + EXPECT_CALL( + test_sink, + Send(AllOf(TextMessage(MatchesOstream(comparison_stream)), + TextMessage(Eq("77")), + ENCODED_MESSAGE(EqualsProto(R"pb(value { str: "77" })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << value << 77; +} + +struct PointPercentV { + template <typename Sink> + friend void AbslStringify(Sink& sink, const PointPercentV& p) { + absl::Format(&sink, "(%v, %v)", p.x, p.y); + } + + int x = 10; + int y = 20; +}; + +TEST(ManipulatorLogFormatTest, IOManipsDoNotAffectAbslStringify) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + PointPercentV p; + + EXPECT_CALL( + test_sink, + Send(AllOf( + TextMessage(Eq("(10, 20)")), TextMessage(Eq(absl::StrCat(p))), + ENCODED_MESSAGE(EqualsProto(R"pb(value { str: "(10, 20)" })pb"))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << std::hex << p; +} + +TEST(StructuredLoggingOverflowTest, TruncatesStrings) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + // This message is too long and should be truncated to some unspecified size + // no greater than the buffer size but not too much less either. It should be + // truncated rather than discarded. + EXPECT_CALL( + test_sink, + Send(AllOf( + TextMessage(AllOf( + SizeIs(AllOf(Ge(absl::log_internal::kLogMessageBufferSize - 256), + Le(absl::log_internal::kLogMessageBufferSize))), + Each(Eq('x')))), + ENCODED_MESSAGE(HasOneStrThat(AllOf( + SizeIs(AllOf(Ge(absl::log_internal::kLogMessageBufferSize - 256), + Le(absl::log_internal::kLogMessageBufferSize))), + Each(Eq('x')))))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << std::string(2 * absl::log_internal::kLogMessageBufferSize, 'x'); +} + +struct StringLike { + absl::string_view data; +}; +std::ostream& operator<<(std::ostream& os, StringLike str) { + return os << str.data; +} + +TEST(StructuredLoggingOverflowTest, TruncatesInsertionOperators) { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + + // This message is too long and should be truncated to some unspecified size + // no greater than the buffer size but not too much less either. It should be + // truncated rather than discarded. + EXPECT_CALL( + test_sink, + Send(AllOf( + TextMessage(AllOf( + SizeIs(AllOf(Ge(absl::log_internal::kLogMessageBufferSize - 256), + Le(absl::log_internal::kLogMessageBufferSize))), + Each(Eq('x')))), + ENCODED_MESSAGE(HasOneStrThat(AllOf( + SizeIs(AllOf(Ge(absl::log_internal::kLogMessageBufferSize - 256), + Le(absl::log_internal::kLogMessageBufferSize))), + Each(Eq('x')))))))); + + test_sink.StartCapturingLogs(); + LOG(INFO) << StringLike{ + std::string(2 * absl::log_internal::kLogMessageBufferSize, 'x')}; +} + +// Returns the size of the largest string that will fit in a `LOG` message +// buffer with no prefix. +size_t MaxLogFieldLengthNoPrefix() { + class StringLengthExtractorSink : public absl::LogSink { + public: + void Send(const absl::LogEntry& entry) override { + CHECK(!size_.has_value()); + CHECK_EQ(entry.text_message().find_first_not_of('x'), + absl::string_view::npos); + size_.emplace(entry.text_message().size()); + } + size_t size() const { + CHECK(size_.has_value()); + return *size_; + } + + private: + absl::optional<size_t> size_; + } extractor_sink; + LOG(INFO).NoPrefix().ToSinkOnly(&extractor_sink) + << std::string(2 * absl::log_internal::kLogMessageBufferSize, 'x'); + return extractor_sink.size(); +} + +TEST(StructuredLoggingOverflowTest, TruncatesStringsCleanly) { + const size_t longest_fit = MaxLogFieldLengthNoPrefix(); + // To log a second value field, we need four bytes: two tag/type bytes and two + // sizes. To put any data in the field we need a fifth byte. + { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + EXPECT_CALL(test_sink, + Send(AllOf(ENCODED_MESSAGE(HasOneStrThat( + AllOf(SizeIs(longest_fit), Each(Eq('x'))))), + RawEncodedMessage(AsString(EndsWith("x")))))); + test_sink.StartCapturingLogs(); + // x fits exactly, no part of y fits. + LOG(INFO).NoPrefix() << std::string(longest_fit, 'x') << "y"; + } + { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + EXPECT_CALL(test_sink, + Send(AllOf(ENCODED_MESSAGE(HasOneStrThat( + AllOf(SizeIs(longest_fit - 1), Each(Eq('x'))))), + RawEncodedMessage(AsString(EndsWith("x")))))); + test_sink.StartCapturingLogs(); + // x fits, one byte from y's header fits but shouldn't be visible. + LOG(INFO).NoPrefix() << std::string(longest_fit - 1, 'x') << "y"; + } + { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + EXPECT_CALL(test_sink, + Send(AllOf(ENCODED_MESSAGE(HasOneStrThat( + AllOf(SizeIs(longest_fit - 2), Each(Eq('x'))))), + RawEncodedMessage(AsString(EndsWith("x")))))); + test_sink.StartCapturingLogs(); + // x fits, two bytes from y's header fit but shouldn't be visible. + LOG(INFO).NoPrefix() << std::string(longest_fit - 2, 'x') << "y"; + } + { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + EXPECT_CALL(test_sink, + Send(AllOf(ENCODED_MESSAGE(HasOneStrThat( + AllOf(SizeIs(longest_fit - 3), Each(Eq('x'))))), + RawEncodedMessage(AsString(EndsWith("x")))))); + test_sink.StartCapturingLogs(); + // x fits, three bytes from y's header fit but shouldn't be visible. + LOG(INFO).NoPrefix() << std::string(longest_fit - 3, 'x') << "y"; + } + { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + EXPECT_CALL(test_sink, + Send(AllOf(ENCODED_MESSAGE(HasOneStrAndOneLiteralThat( + AllOf(SizeIs(longest_fit - 4), Each(Eq('x'))), + IsEmpty())), + RawEncodedMessage(Not(AsString(EndsWith("x"))))))); + test_sink.StartCapturingLogs(); + // x fits, all four bytes from y's header fit but no data bytes do, so we + // encode an empty string. + LOG(INFO).NoPrefix() << std::string(longest_fit - 4, 'x') << "y"; + } + { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + EXPECT_CALL( + test_sink, + Send(AllOf(ENCODED_MESSAGE(HasOneStrAndOneLiteralThat( + AllOf(SizeIs(longest_fit - 5), Each(Eq('x'))), Eq("y"))), + RawEncodedMessage(AsString(EndsWith("y")))))); + test_sink.StartCapturingLogs(); + // x fits, y fits exactly. + LOG(INFO).NoPrefix() << std::string(longest_fit - 5, 'x') << "y"; + } +} + +TEST(StructuredLoggingOverflowTest, TruncatesInsertionOperatorsCleanly) { + const size_t longest_fit = MaxLogFieldLengthNoPrefix(); + // To log a second value field, we need four bytes: two tag/type bytes and two + // sizes. To put any data in the field we need a fifth byte. + { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + EXPECT_CALL(test_sink, + Send(AllOf(ENCODED_MESSAGE(HasOneStrThat( + AllOf(SizeIs(longest_fit), Each(Eq('x'))))), + RawEncodedMessage(AsString(EndsWith("x")))))); + test_sink.StartCapturingLogs(); + // x fits exactly, no part of y fits. + LOG(INFO).NoPrefix() << std::string(longest_fit, 'x') << StringLike{"y"}; + } + { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + EXPECT_CALL(test_sink, + Send(AllOf(ENCODED_MESSAGE(HasOneStrThat( + AllOf(SizeIs(longest_fit - 1), Each(Eq('x'))))), + RawEncodedMessage(AsString(EndsWith("x")))))); + test_sink.StartCapturingLogs(); + // x fits, one byte from y's header fits but shouldn't be visible. + LOG(INFO).NoPrefix() << std::string(longest_fit - 1, 'x') + << StringLike{"y"}; + } + { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + EXPECT_CALL(test_sink, + Send(AllOf(ENCODED_MESSAGE(HasOneStrThat( + AllOf(SizeIs(longest_fit - 2), Each(Eq('x'))))), + RawEncodedMessage(AsString(EndsWith("x")))))); + test_sink.StartCapturingLogs(); + // x fits, two bytes from y's header fit but shouldn't be visible. + LOG(INFO).NoPrefix() << std::string(longest_fit - 2, 'x') + << StringLike{"y"}; + } + { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + EXPECT_CALL(test_sink, + Send(AllOf(ENCODED_MESSAGE(HasOneStrThat( + AllOf(SizeIs(longest_fit - 3), Each(Eq('x'))))), + RawEncodedMessage(AsString(EndsWith("x")))))); + test_sink.StartCapturingLogs(); + // x fits, three bytes from y's header fit but shouldn't be visible. + LOG(INFO).NoPrefix() << std::string(longest_fit - 3, 'x') + << StringLike{"y"}; + } + { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + EXPECT_CALL(test_sink, + Send(AllOf(ENCODED_MESSAGE(HasOneStrThat( + AllOf(SizeIs(longest_fit - 4), Each(Eq('x'))))), + RawEncodedMessage(AsString(EndsWith("x")))))); + test_sink.StartCapturingLogs(); + // x fits, all four bytes from y's header fit but no data bytes do. We + // don't encode an empty string here because every I/O manipulator hits this + // codepath and those shouldn't leave empty strings behind. + LOG(INFO).NoPrefix() << std::string(longest_fit - 4, 'x') + << StringLike{"y"}; + } + { + absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected); + EXPECT_CALL( + test_sink, + Send(AllOf(ENCODED_MESSAGE(HasTwoStrsThat( + AllOf(SizeIs(longest_fit - 5), Each(Eq('x'))), Eq("y"))), + RawEncodedMessage(AsString(EndsWith("y")))))); + test_sink.StartCapturingLogs(); + // x fits, y fits exactly. + LOG(INFO).NoPrefix() << std::string(longest_fit - 5, 'x') + << StringLike{"y"}; + } +} + +} // namespace |