mirror of
https://github.com/abseil/abseil-cpp.git
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211 lines
8.0 KiB
C++
211 lines
8.0 KiB
C++
// Copyright 2024 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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//
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// -----------------------------------------------------------------------------
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// File: status_matchers_test.cc
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// -----------------------------------------------------------------------------
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#include "absl/status/status_matchers.h"
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#include <string>
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#include <vector>
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#include "gmock/gmock.h"
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#include "gtest/gtest-spi.h"
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#include "gtest/gtest.h"
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#include "absl/status/status.h"
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#include "absl/status/statusor.h"
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#include "absl/strings/string_view.h"
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namespace {
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using ::absl_testing::IsOk;
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using ::absl_testing::IsOkAndHolds;
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using ::absl_testing::StatusIs;
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using ::testing::ElementsAre;
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using ::testing::Eq;
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using ::testing::Gt;
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using ::testing::MatchesRegex;
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using ::testing::Not;
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using ::testing::Ref;
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TEST(StatusMatcherTest, AbslExpectAssertOk) {
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ABSL_EXPECT_OK(absl::OkStatus());
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ABSL_ASSERT_OK(absl::OkStatus());
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EXPECT_NONFATAL_FAILURE(ABSL_EXPECT_OK(absl::InternalError("Smigla error")),
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"Smigla error");
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EXPECT_FATAL_FAILURE(ABSL_ASSERT_OK(absl::InternalError("Smigla error")),
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"Smigla error");
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}
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TEST(StatusMatcherTest, ExpectAssertOk) {
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#ifdef ABSL_DEFINE_UNQUALIFIED_STATUS_TESTING_MACROS
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EXPECT_OK(absl::OkStatus());
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ASSERT_OK(absl::OkStatus());
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EXPECT_NONFATAL_FAILURE(EXPECT_OK(absl::InternalError("Smigla error")),
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"Smigla error");
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EXPECT_FATAL_FAILURE(ASSERT_OK(absl::InternalError("Smigla error")),
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"Smigla error");
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#else
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#ifdef EXPECT_OK
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static_assert(false, "EXPECT_OK defined despite being turned off.");
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#endif // EXPECT_OK
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#ifdef ASSERT_OK
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static_assert(false, "ASSERT_OK defined despite being turned off.");
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#endif // ASSERT_OK
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#endif // ABSL_DEFINE_UNQUALIFIED_STATUS_TESTING_MACROS
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}
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TEST(StatusMatcherTest, StatusIsOk) { EXPECT_THAT(absl::OkStatus(), IsOk()); }
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TEST(StatusMatcherTest, StatusOrIsOk) {
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absl::StatusOr<int> ok_int = {0};
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EXPECT_THAT(ok_int, IsOk());
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}
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TEST(StatusMatcherTest, StatusIsNotOk) {
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absl::Status error = absl::UnknownError("Smigla");
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EXPECT_NONFATAL_FAILURE(EXPECT_THAT(error, IsOk()), "Smigla");
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}
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TEST(StatusMatcherTest, StatusOrIsNotOk) {
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absl::StatusOr<int> error = absl::UnknownError("Smigla");
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EXPECT_NONFATAL_FAILURE(EXPECT_THAT(error, IsOk()), "Smigla");
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}
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TEST(StatusMatcherTest, IsOkAndHolds) {
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absl::StatusOr<int> ok_int = {4};
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absl::StatusOr<absl::string_view> ok_str = {"text"};
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EXPECT_THAT(ok_int, IsOkAndHolds(4));
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EXPECT_THAT(ok_int, IsOkAndHolds(Gt(0)));
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EXPECT_THAT(ok_str, IsOkAndHolds("text"));
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}
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TEST(StatusMatcherTest, IsOkAndHoldsFailure) {
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absl::StatusOr<int> ok_int = {502};
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absl::StatusOr<int> error = absl::UnknownError("Smigla");
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absl::StatusOr<absl::string_view> ok_str = {"actual"};
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EXPECT_NONFATAL_FAILURE(EXPECT_THAT(ok_int, IsOkAndHolds(0)), "502");
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EXPECT_NONFATAL_FAILURE(EXPECT_THAT(error, IsOkAndHolds(0)), "Smigla");
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EXPECT_NONFATAL_FAILURE(EXPECT_THAT(ok_str, IsOkAndHolds("expected")),
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"actual");
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}
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template <typename MatcherType, typename Value>
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std::string Explain(const MatcherType& m, const Value& x) {
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::testing::StringMatchResultListener listener;
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ExplainMatchResult(m, x, &listener);
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return listener.str();
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}
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TEST(StatusMatcherTest, StatusIs) {
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absl::Status unknown = absl::UnknownError("unbekannt");
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absl::Status invalid = absl::InvalidArgumentError("ungueltig");
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EXPECT_THAT(absl::OkStatus(), StatusIs(absl::StatusCode::kOk));
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EXPECT_THAT(absl::OkStatus(), StatusIs(0));
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EXPECT_THAT(unknown, StatusIs(absl::StatusCode::kUnknown));
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EXPECT_THAT(unknown, StatusIs(2));
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EXPECT_THAT(unknown, StatusIs(absl::StatusCode::kUnknown, "unbekannt"));
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EXPECT_THAT(invalid, StatusIs(absl::StatusCode::kInvalidArgument));
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EXPECT_THAT(invalid, StatusIs(3));
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EXPECT_THAT(invalid,
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StatusIs(absl::StatusCode::kInvalidArgument, "ungueltig"));
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auto m = StatusIs(absl::StatusCode::kInternal, "internal error");
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EXPECT_THAT(::testing::DescribeMatcher<absl::Status>(m),
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MatchesRegex("has a status code that is equal to INTERNAL, and "
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"has an error message that .*"));
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EXPECT_THAT(
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::testing::DescribeMatcher<absl::Status>(m, /*negation=*/true),
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MatchesRegex(
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"either has a status code that .*, or has an error message that .*"));
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EXPECT_THAT(Explain(m, absl::InvalidArgumentError("internal error")),
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Eq("whose status code is wrong"));
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EXPECT_THAT(Explain(m, absl::InternalError("unexpected error")),
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Eq("whose error message is wrong"));
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}
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TEST(StatusMatcherTest, StatusOrIs) {
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absl::StatusOr<int> ok = {42};
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absl::StatusOr<int> unknown = absl::UnknownError("unbekannt");
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absl::StatusOr<absl::string_view> invalid =
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absl::InvalidArgumentError("ungueltig");
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EXPECT_THAT(ok, StatusIs(absl::StatusCode::kOk));
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EXPECT_THAT(ok, StatusIs(0));
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EXPECT_THAT(unknown, StatusIs(absl::StatusCode::kUnknown));
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EXPECT_THAT(unknown, StatusIs(2));
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EXPECT_THAT(unknown, StatusIs(absl::StatusCode::kUnknown, "unbekannt"));
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EXPECT_THAT(invalid, StatusIs(absl::StatusCode::kInvalidArgument));
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EXPECT_THAT(invalid, StatusIs(3));
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EXPECT_THAT(invalid,
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StatusIs(absl::StatusCode::kInvalidArgument, "ungueltig"));
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auto m = StatusIs(absl::StatusCode::kInternal, "internal error");
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EXPECT_THAT(
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::testing::DescribeMatcher<absl::StatusOr<int>>(m),
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MatchesRegex(
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"has a status code that .*, and has an error message that .*"));
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EXPECT_THAT(
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::testing::DescribeMatcher<absl::StatusOr<int>>(m, /*negation=*/true),
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MatchesRegex(
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"either has a status code that .*, or has an error message that .*"));
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EXPECT_THAT(Explain(m, absl::StatusOr<int>(57)), Eq("which is OK"));
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EXPECT_THAT(Explain(m, absl::StatusOr<int>(
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absl::InvalidArgumentError("internal error"))),
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Eq("whose status code is wrong"));
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EXPECT_THAT(
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Explain(m, absl::StatusOr<int>(absl::InternalError("unexpected error"))),
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Eq("whose error message is wrong"));
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}
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TEST(StatusMatcherTest, StatusIsFailure) {
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absl::Status unknown = absl::UnknownError("unbekannt");
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absl::Status invalid = absl::InvalidArgumentError("ungueltig");
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EXPECT_NONFATAL_FAILURE(
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EXPECT_THAT(absl::OkStatus(),
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StatusIs(absl::StatusCode::kInvalidArgument)),
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"OK");
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EXPECT_NONFATAL_FAILURE(
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EXPECT_THAT(unknown, StatusIs(absl::StatusCode::kCancelled)), "UNKNOWN");
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EXPECT_NONFATAL_FAILURE(
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EXPECT_THAT(unknown, StatusIs(absl::StatusCode::kUnknown, "inconnu")),
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"unbekannt");
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EXPECT_NONFATAL_FAILURE(
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EXPECT_THAT(invalid, StatusIs(absl::StatusCode::kOutOfRange)), "INVALID");
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EXPECT_NONFATAL_FAILURE(
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EXPECT_THAT(invalid,
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StatusIs(absl::StatusCode::kInvalidArgument, "invalide")),
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"ungueltig");
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}
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TEST(StatusMatcherTest, ReferencesWork) {
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int i = 17;
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int j = 19;
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EXPECT_THAT(absl::StatusOr<int&>(i), IsOkAndHolds(17));
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EXPECT_THAT(absl::StatusOr<int&>(i), Not(IsOkAndHolds(19)));
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EXPECT_THAT(absl::StatusOr<const int&>(i), IsOkAndHolds(17));
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// Reference testing works as expected.
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EXPECT_THAT(absl::StatusOr<int&>(i), IsOkAndHolds(Ref(i)));
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EXPECT_THAT(absl::StatusOr<int&>(i), Not(IsOkAndHolds(Ref(j))));
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// Try a more complex one.
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std::vector<std::string> vec = {"A", "B", "C"};
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EXPECT_THAT(absl::StatusOr<std::vector<std::string>&>(vec),
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IsOkAndHolds(ElementsAre("A", "B", "C")));
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EXPECT_THAT(absl::StatusOr<std::vector<std::string>&>(vec),
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Not(IsOkAndHolds(ElementsAre("A", "X", "C"))));
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}
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} // namespace
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