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Diffstat (limited to 'absl/status/status_test.cc')
| -rw-r--r-- | absl/status/status_test.cc | 401 |
1 files changed, 401 insertions, 0 deletions
diff --git a/absl/status/status_test.cc b/absl/status/status_test.cc new file mode 100644 index 00000000..7cc65e45 --- /dev/null +++ b/absl/status/status_test.cc @@ -0,0 +1,401 @@ +// Copyright 2019 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 "absl/status/status.h" + +#include "gmock/gmock.h" +#include "gtest/gtest.h" +#include "absl/strings/str_cat.h" + +namespace { + +using ::testing::Eq; +using ::testing::HasSubstr; +using ::testing::Optional; +using ::testing::UnorderedElementsAreArray; + +TEST(StatusCode, InsertionOperator) { + const absl::StatusCode code = absl::StatusCode::kUnknown; + std::ostringstream oss; + oss << code; + EXPECT_EQ(oss.str(), absl::StatusCodeToString(code)); +} + +// This structure holds the details for testing a single error code, +// its creator, and its classifier. +struct ErrorTest { + absl::StatusCode code; + using Creator = absl::Status (*)(absl::string_view); + using Classifier = bool (*)(const absl::Status&); + Creator creator; + Classifier classifier; +}; + +constexpr ErrorTest kErrorTests[]{ + {absl::StatusCode::kCancelled, absl::CancelledError, absl::IsCancelled}, + {absl::StatusCode::kUnknown, absl::UnknownError, absl::IsUnknown}, + {absl::StatusCode::kInvalidArgument, absl::InvalidArgumentError, + absl::IsInvalidArgument}, + {absl::StatusCode::kDeadlineExceeded, absl::DeadlineExceededError, + absl::IsDeadlineExceeded}, + {absl::StatusCode::kNotFound, absl::NotFoundError, absl::IsNotFound}, + {absl::StatusCode::kAlreadyExists, absl::AlreadyExistsError, + absl::IsAlreadyExists}, + {absl::StatusCode::kPermissionDenied, absl::PermissionDeniedError, + absl::IsPermissionDenied}, + {absl::StatusCode::kResourceExhausted, absl::ResourceExhaustedError, + absl::IsResourceExhausted}, + {absl::StatusCode::kFailedPrecondition, absl::FailedPreconditionError, + absl::IsFailedPrecondition}, + {absl::StatusCode::kAborted, absl::AbortedError, absl::IsAborted}, + {absl::StatusCode::kOutOfRange, absl::OutOfRangeError, absl::IsOutOfRange}, + {absl::StatusCode::kUnimplemented, absl::UnimplementedError, + absl::IsUnimplemented}, + {absl::StatusCode::kInternal, absl::InternalError, absl::IsInternal}, + {absl::StatusCode::kUnavailable, absl::UnavailableError, + absl::IsUnavailable}, + {absl::StatusCode::kDataLoss, absl::DataLossError, absl::IsDataLoss}, + {absl::StatusCode::kUnauthenticated, absl::UnauthenticatedError, + absl::IsUnauthenticated}, +}; + +TEST(Status, CreateAndClassify) { + for (const auto& test : kErrorTests) { + SCOPED_TRACE(absl::StatusCodeToString(test.code)); + + // Ensure that the creator does, in fact, create status objects with the + // expected error code and message. + std::string message = + absl::StrCat("error code ", test.code, " test message"); + absl::Status status = test.creator(message); + EXPECT_EQ(test.code, status.code()); + EXPECT_EQ(message, status.message()); + + // Ensure that the classifier returns true for a status produced by the + // creator. + EXPECT_TRUE(test.classifier(status)); + + // Ensure that the classifier returns false for status with a different + // code. + for (const auto& other : kErrorTests) { + if (other.code != test.code) { + EXPECT_FALSE(test.classifier(absl::Status(other.code, ""))) + << " other.code = " << other.code; + } + } + } +} + +TEST(Status, DefaultConstructor) { + absl::Status status; + EXPECT_TRUE(status.ok()); + EXPECT_EQ(absl::StatusCode::kOk, status.code()); + EXPECT_EQ("", status.message()); +} + +TEST(Status, OkStatus) { + absl::Status status = absl::OkStatus(); + EXPECT_TRUE(status.ok()); + EXPECT_EQ(absl::StatusCode::kOk, status.code()); + EXPECT_EQ("", status.message()); +} + +TEST(Status, ConstructorWithCodeMessage) { + { + absl::Status status(absl::StatusCode::kCancelled, ""); + EXPECT_FALSE(status.ok()); + EXPECT_EQ(absl::StatusCode::kCancelled, status.code()); + EXPECT_EQ("", status.message()); + } + { + absl::Status status(absl::StatusCode::kInternal, "message"); + EXPECT_FALSE(status.ok()); + EXPECT_EQ(absl::StatusCode::kInternal, status.code()); + EXPECT_EQ("message", status.message()); + } +} + +TEST(Status, ConstructOutOfRangeCode) { + const int kRawCode = 9999; + absl::Status status(static_cast<absl::StatusCode>(kRawCode), ""); + EXPECT_EQ(absl::StatusCode::kUnknown, status.code()); + EXPECT_EQ(kRawCode, status.raw_code()); +} + +constexpr char kUrl1[] = "url.payload.1"; +constexpr char kUrl2[] = "url.payload.2"; +constexpr char kUrl3[] = "url.payload.3"; +constexpr char kUrl4[] = "url.payload.xx"; + +constexpr char kPayload1[] = "aaaaa"; +constexpr char kPayload2[] = "bbbbb"; +constexpr char kPayload3[] = "ccccc"; + +using PayloadsVec = std::vector<std::pair<std::string, absl::Cord>>; + +TEST(Status, TestGetSetPayload) { + absl::Status ok_status = absl::OkStatus(); + ok_status.SetPayload(kUrl1, absl::Cord(kPayload1)); + ok_status.SetPayload(kUrl2, absl::Cord(kPayload2)); + + EXPECT_FALSE(ok_status.GetPayload(kUrl1)); + EXPECT_FALSE(ok_status.GetPayload(kUrl2)); + + absl::Status bad_status(absl::StatusCode::kInternal, "fail"); + bad_status.SetPayload(kUrl1, absl::Cord(kPayload1)); + bad_status.SetPayload(kUrl2, absl::Cord(kPayload2)); + + EXPECT_THAT(bad_status.GetPayload(kUrl1), Optional(Eq(kPayload1))); + EXPECT_THAT(bad_status.GetPayload(kUrl2), Optional(Eq(kPayload2))); + + EXPECT_FALSE(bad_status.GetPayload(kUrl3)); + + bad_status.SetPayload(kUrl1, absl::Cord(kPayload3)); + EXPECT_THAT(bad_status.GetPayload(kUrl1), Optional(Eq(kPayload3))); + + // Testing dynamically generated type_url + bad_status.SetPayload(absl::StrCat(kUrl1, ".1"), absl::Cord(kPayload1)); + EXPECT_THAT(bad_status.GetPayload(absl::StrCat(kUrl1, ".1")), + Optional(Eq(kPayload1))); +} + +TEST(Status, TestErasePayload) { + absl::Status bad_status(absl::StatusCode::kInternal, "fail"); + bad_status.SetPayload(kUrl1, absl::Cord(kPayload1)); + bad_status.SetPayload(kUrl2, absl::Cord(kPayload2)); + bad_status.SetPayload(kUrl3, absl::Cord(kPayload3)); + + EXPECT_FALSE(bad_status.ErasePayload(kUrl4)); + + EXPECT_TRUE(bad_status.GetPayload(kUrl2)); + EXPECT_TRUE(bad_status.ErasePayload(kUrl2)); + EXPECT_FALSE(bad_status.GetPayload(kUrl2)); + EXPECT_FALSE(bad_status.ErasePayload(kUrl2)); + + EXPECT_TRUE(bad_status.ErasePayload(kUrl1)); + EXPECT_TRUE(bad_status.ErasePayload(kUrl3)); + + bad_status.SetPayload(kUrl1, absl::Cord(kPayload1)); + EXPECT_TRUE(bad_status.ErasePayload(kUrl1)); +} + +TEST(Status, TestComparePayloads) { + absl::Status bad_status1(absl::StatusCode::kInternal, "fail"); + bad_status1.SetPayload(kUrl1, absl::Cord(kPayload1)); + bad_status1.SetPayload(kUrl2, absl::Cord(kPayload2)); + bad_status1.SetPayload(kUrl3, absl::Cord(kPayload3)); + + absl::Status bad_status2(absl::StatusCode::kInternal, "fail"); + bad_status2.SetPayload(kUrl2, absl::Cord(kPayload2)); + bad_status2.SetPayload(kUrl3, absl::Cord(kPayload3)); + bad_status2.SetPayload(kUrl1, absl::Cord(kPayload1)); + + EXPECT_EQ(bad_status1, bad_status2); +} + +PayloadsVec AllVisitedPayloads(const absl::Status& s) { + PayloadsVec result; + + s.ForEachPayload([&](absl::string_view type_url, const absl::Cord& payload) { + result.push_back(std::make_pair(std::string(type_url), payload)); + }); + + return result; +} + +TEST(Status, TestForEachPayload) { + absl::Status bad_status(absl::StatusCode::kInternal, "fail"); + bad_status.SetPayload(kUrl1, absl::Cord(kPayload1)); + bad_status.SetPayload(kUrl2, absl::Cord(kPayload2)); + bad_status.SetPayload(kUrl3, absl::Cord(kPayload3)); + + int count = 0; + + bad_status.ForEachPayload( + [&count](absl::string_view, const absl::Cord&) { ++count; }); + + EXPECT_EQ(count, 3); + + PayloadsVec expected_payloads = {{kUrl1, absl::Cord(kPayload1)}, + {kUrl2, absl::Cord(kPayload2)}, + {kUrl3, absl::Cord(kPayload3)}}; + + // Test that we visit all the payloads in the status. + PayloadsVec visited_payloads = AllVisitedPayloads(bad_status); + EXPECT_THAT(visited_payloads, UnorderedElementsAreArray(expected_payloads)); + + // Test that visitation order is not consistent between run. + std::vector<absl::Status> scratch; + while (true) { + scratch.emplace_back(absl::StatusCode::kInternal, "fail"); + + scratch.back().SetPayload(kUrl1, absl::Cord(kPayload1)); + scratch.back().SetPayload(kUrl2, absl::Cord(kPayload2)); + scratch.back().SetPayload(kUrl3, absl::Cord(kPayload3)); + + if (AllVisitedPayloads(scratch.back()) != visited_payloads) { + break; + } + } +} + +TEST(Status, ToString) { + absl::Status s(absl::StatusCode::kInternal, "fail"); + EXPECT_EQ("INTERNAL: fail", s.ToString()); + s.SetPayload("foo", absl::Cord("bar")); + EXPECT_EQ("INTERNAL: fail [foo='bar']", s.ToString()); + s.SetPayload("bar", absl::Cord("\377")); + EXPECT_THAT(s.ToString(), + AllOf(HasSubstr("INTERNAL: fail"), HasSubstr("[foo='bar']"), + HasSubstr("[bar='\\xff']"))); +} + +TEST(Status, CopyConstructor) { + { + absl::Status status; + absl::Status copy(status); + EXPECT_EQ(copy, status); + } + { + absl::Status status(absl::StatusCode::kInvalidArgument, "message"); + absl::Status copy(status); + EXPECT_EQ(copy, status); + } + { + absl::Status status(absl::StatusCode::kInvalidArgument, "message"); + status.SetPayload(kUrl1, absl::Cord(kPayload1)); + absl::Status copy(status); + EXPECT_EQ(copy, status); + } +} + +TEST(Status, CopyAssignment) { + absl::Status assignee; + { + absl::Status status; + assignee = status; + EXPECT_EQ(assignee, status); + } + { + absl::Status status(absl::StatusCode::kInvalidArgument, "message"); + assignee = status; + EXPECT_EQ(assignee, status); + } + { + absl::Status status(absl::StatusCode::kInvalidArgument, "message"); + status.SetPayload(kUrl1, absl::Cord(kPayload1)); + assignee = status; + EXPECT_EQ(assignee, status); + } +} + +TEST(Status, MoveConstructor) { + { + absl::Status status; + absl::Status copy(absl::Status{}); + EXPECT_EQ(copy, status); + } + { + absl::Status status(absl::StatusCode::kInvalidArgument, "message"); + absl::Status copy( + absl::Status(absl::StatusCode::kInvalidArgument, "message")); + EXPECT_EQ(copy, status); + } + { + absl::Status status(absl::StatusCode::kInvalidArgument, "message"); + status.SetPayload(kUrl1, absl::Cord(kPayload1)); + absl::Status copy1(status); + absl::Status copy2(std::move(status)); + EXPECT_EQ(copy1, copy2); + } +} + +TEST(Status, MoveAssignment) { + absl::Status assignee; + { + absl::Status status; + assignee = absl::Status(); + EXPECT_EQ(assignee, status); + } + { + absl::Status status(absl::StatusCode::kInvalidArgument, "message"); + assignee = absl::Status(absl::StatusCode::kInvalidArgument, "message"); + EXPECT_EQ(assignee, status); + } + { + absl::Status status(absl::StatusCode::kInvalidArgument, "message"); + status.SetPayload(kUrl1, absl::Cord(kPayload1)); + absl::Status copy(status); + assignee = std::move(status); + EXPECT_EQ(assignee, copy); + } +} + +TEST(Status, Update) { + absl::Status s; + s.Update(absl::OkStatus()); + EXPECT_TRUE(s.ok()); + const absl::Status a(absl::StatusCode::kCancelled, "message"); + s.Update(a); + EXPECT_EQ(s, a); + const absl::Status b(absl::StatusCode::kInternal, "other message"); + s.Update(b); + EXPECT_EQ(s, a); + s.Update(absl::OkStatus()); + EXPECT_EQ(s, a); + EXPECT_FALSE(s.ok()); +} + +TEST(Status, Equality) { + absl::Status ok; + absl::Status no_payload = absl::CancelledError("no payload"); + absl::Status one_payload = absl::InvalidArgumentError("one payload"); + one_payload.SetPayload(kUrl1, absl::Cord(kPayload1)); + absl::Status two_payloads = one_payload; + two_payloads.SetPayload(kUrl2, absl::Cord(kPayload2)); + const std::array<absl::Status, 4> status_arr = {ok, no_payload, one_payload, + two_payloads}; + for (int i = 0; i < status_arr.size(); i++) { + for (int j = 0; j < status_arr.size(); j++) { + if (i == j) { + EXPECT_TRUE(status_arr[i] == status_arr[j]); + EXPECT_FALSE(status_arr[i] != status_arr[j]); + } else { + EXPECT_TRUE(status_arr[i] != status_arr[j]); + EXPECT_FALSE(status_arr[i] == status_arr[j]); + } + } + } +} + +TEST(Status, Swap) { + auto test_swap = [](const absl::Status& s1, const absl::Status& s2) { + absl::Status copy1 = s1, copy2 = s2; + swap(copy1, copy2); + EXPECT_EQ(copy1, s2); + EXPECT_EQ(copy2, s1); + }; + const absl::Status ok; + const absl::Status no_payload(absl::StatusCode::kAlreadyExists, "no payload"); + absl::Status with_payload(absl::StatusCode::kInternal, "with payload"); + with_payload.SetPayload(kUrl1, absl::Cord(kPayload1)); + test_swap(ok, no_payload); + test_swap(no_payload, ok); + test_swap(ok, with_payload); + test_swap(with_payload, ok); + test_swap(no_payload, with_payload); + test_swap(with_payload, no_payload); +} + +} // namespace |