| // |
| // |
| // Copyright 2015 gRPC authors. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| // |
| // |
| |
| #include "test/core/end2end/cq_verifier.h" |
| |
| #include <inttypes.h> |
| #include <stdio.h> |
| #include <string.h> |
| |
| #include <algorithm> |
| #include <initializer_list> |
| #include <string> |
| #include <utility> |
| #include <vector> |
| |
| #include "absl/strings/str_cat.h" |
| #include "absl/strings/str_format.h" |
| #include "absl/strings/str_join.h" |
| |
| #include <grpc/byte_buffer.h> |
| #include <grpc/compression.h> |
| #include <grpc/grpc.h> |
| #include <grpc/slice_buffer.h> |
| #include <grpc/support/log.h> |
| #include <grpc/support/time.h> |
| |
| #include "src/core/lib/compression/message_compress.h" |
| #include "src/core/lib/gprpp/crash.h" |
| #include "src/core/lib/gprpp/debug_location.h" |
| #include "src/core/lib/gprpp/match.h" |
| #include "src/core/lib/surface/event_string.h" |
| #include "test/core/util/test_config.h" |
| |
| // a set of metadata we expect to find on an event |
| typedef struct metadata { |
| size_t count; |
| size_t cap; |
| char** keys; |
| char** values; |
| } metadata; |
| |
| static int has_metadata(const grpc_metadata* md, size_t count, const char* key, |
| const char* value) { |
| size_t i; |
| for (i = 0; i < count; i++) { |
| if (0 == grpc_slice_str_cmp(md[i].key, key) && |
| 0 == grpc_slice_str_cmp(md[i].value, value)) { |
| return 1; |
| } |
| } |
| return 0; |
| } |
| |
| int contains_metadata(grpc_metadata_array* array, const char* key, |
| const char* value) { |
| return has_metadata(array->metadata, array->count, key, value); |
| } |
| |
| static int has_metadata_slices(const grpc_metadata* md, size_t count, |
| grpc_slice key, grpc_slice value) { |
| size_t i; |
| for (i = 0; i < count; i++) { |
| if (grpc_slice_eq(md[i].key, key) && grpc_slice_eq(md[i].value, value)) { |
| return 1; |
| } |
| } |
| return 0; |
| } |
| |
| int contains_metadata_slices(grpc_metadata_array* array, grpc_slice key, |
| grpc_slice value) { |
| return has_metadata_slices(array->metadata, array->count, key, value); |
| } |
| |
| static grpc_slice merge_slices(grpc_slice* slices, size_t nslices) { |
| size_t i; |
| size_t len = 0; |
| uint8_t* cursor; |
| grpc_slice out; |
| |
| for (i = 0; i < nslices; i++) { |
| len += GRPC_SLICE_LENGTH(slices[i]); |
| } |
| |
| out = grpc_slice_malloc(len); |
| cursor = GRPC_SLICE_START_PTR(out); |
| |
| for (i = 0; i < nslices; i++) { |
| memcpy(cursor, GRPC_SLICE_START_PTR(slices[i]), |
| GRPC_SLICE_LENGTH(slices[i])); |
| cursor += GRPC_SLICE_LENGTH(slices[i]); |
| } |
| |
| return out; |
| } |
| |
| int raw_byte_buffer_eq_slice(grpc_byte_buffer* rbb, grpc_slice b) { |
| grpc_slice a; |
| int ok; |
| |
| if (!rbb) return 0; |
| |
| a = merge_slices(rbb->data.raw.slice_buffer.slices, |
| rbb->data.raw.slice_buffer.count); |
| ok = GRPC_SLICE_LENGTH(a) == GRPC_SLICE_LENGTH(b) && |
| 0 == memcmp(GRPC_SLICE_START_PTR(a), GRPC_SLICE_START_PTR(b), |
| GRPC_SLICE_LENGTH(a)); |
| grpc_slice_unref(a); |
| grpc_slice_unref(b); |
| return ok; |
| } |
| |
| int byte_buffer_eq_slice(grpc_byte_buffer* bb, grpc_slice b) { |
| if (bb == nullptr) return 0; |
| if (bb->data.raw.compression > GRPC_COMPRESS_NONE) { |
| grpc_slice_buffer decompressed_buffer; |
| grpc_slice_buffer_init(&decompressed_buffer); |
| GPR_ASSERT(grpc_msg_decompress(bb->data.raw.compression, |
| &bb->data.raw.slice_buffer, |
| &decompressed_buffer)); |
| grpc_byte_buffer* rbb = grpc_raw_byte_buffer_create( |
| decompressed_buffer.slices, decompressed_buffer.count); |
| int ret_val = raw_byte_buffer_eq_slice(rbb, b); |
| grpc_byte_buffer_destroy(rbb); |
| grpc_slice_buffer_destroy(&decompressed_buffer); |
| return ret_val; |
| } |
| return raw_byte_buffer_eq_slice(bb, b); |
| } |
| |
| int byte_buffer_eq_string(grpc_byte_buffer* bb, const char* str) { |
| return byte_buffer_eq_slice(bb, grpc_slice_from_copied_string(str)); |
| } |
| |
| namespace { |
| bool IsProbablyInteger(void* p) { |
| return reinterpret_cast<uintptr_t>(p) < 1000000; |
| } |
| |
| std::string TagStr(void* tag) { |
| if (IsProbablyInteger(tag)) { |
| return absl::StrFormat("tag(%" PRIdPTR ")", |
| reinterpret_cast<intptr_t>(tag)); |
| } else { |
| return absl::StrFormat("%p", tag); |
| } |
| } |
| } // namespace |
| |
| namespace grpc_core { |
| |
| CqVerifier::CqVerifier(grpc_completion_queue* cq) : cq_(cq) {} |
| |
| CqVerifier::~CqVerifier() { Verify(); } |
| |
| std::string CqVerifier::Expectation::ToString() const { |
| return absl::StrCat( |
| location.file(), ":", location.line(), ": ", TagStr(tag), " ", |
| Match( |
| result, |
| [](bool success) { |
| return absl::StrCat("success=", success ? "true" : "false"); |
| }, |
| [](Maybe) { return std::string("maybe"); }, |
| [](AnyStatus) { return std::string("any success value"); })); |
| } |
| |
| std::string CqVerifier::ToString() const { |
| std::vector<std::string> expectations; |
| expectations.reserve(expectations_.size()); |
| for (const auto& e : expectations_) { |
| expectations.push_back(e.ToString()); |
| } |
| return absl::StrJoin(expectations, "\n"); |
| } |
| |
| void CqVerifier::FailNoEventReceived(const SourceLocation& location) const { |
| Crash(absl::StrFormat("[%s:%d] no event received, but expected:%s", |
| location.file(), location.line(), ToString().c_str())); |
| } |
| |
| void CqVerifier::FailUnexpectedEvent(grpc_event* ev, |
| const SourceLocation& location) const { |
| gpr_log(GPR_ERROR, "[%s:%d] cq returned unexpected event: %s", |
| location.file(), location.line(), grpc_event_string(ev).c_str()); |
| Crash(absl::StrFormat("expected tags:\n%s", ToString().c_str())); |
| } |
| |
| void CqVerifier::Verify(Duration timeout, SourceLocation location) { |
| const gpr_timespec deadline = |
| grpc_timeout_milliseconds_to_deadline(timeout.millis()); |
| while (!expectations_.empty()) { |
| grpc_event ev = grpc_completion_queue_next(cq_, deadline, nullptr); |
| if (ev.type == GRPC_QUEUE_TIMEOUT) break; |
| if (ev.type != GRPC_OP_COMPLETE) { |
| FailUnexpectedEvent(&ev, location); |
| } |
| bool found = false; |
| for (auto it = expectations_.begin(); it != expectations_.end(); ++it) { |
| if (it->tag != ev.tag) continue; |
| const bool expected = Match( |
| it->result, [ev](bool success) { return ev.success == success; }, |
| [ev](Maybe m) { |
| if (m.seen != nullptr) *m.seen = true; |
| return ev.success != 0; |
| }, |
| [ev](AnyStatus a) { |
| if (a.result != nullptr) *a.result = ev.success; |
| return true; |
| }); |
| if (!expected) { |
| FailUnexpectedEvent(&ev, location); |
| } |
| expectations_.erase(it); |
| found = true; |
| break; |
| } |
| if (!found) FailUnexpectedEvent(&ev, location); |
| if (AllMaybes()) break; |
| } |
| expectations_.erase( |
| std::remove_if(expectations_.begin(), expectations_.end(), |
| [](const Expectation& e) { |
| return absl::holds_alternative<Maybe>(e.result); |
| }), |
| expectations_.end()); |
| if (!expectations_.empty()) FailNoEventReceived(location); |
| } |
| |
| bool CqVerifier::AllMaybes() const { |
| for (const auto& e : expectations_) { |
| if (!absl::holds_alternative<Maybe>(e.result)) return false; |
| } |
| return true; |
| } |
| |
| void CqVerifier::VerifyEmpty(Duration timeout, SourceLocation location) { |
| const gpr_timespec deadline = |
| gpr_time_add(gpr_now(GPR_CLOCK_MONOTONIC), timeout.as_timespec()); |
| GPR_ASSERT(expectations_.empty()); |
| grpc_event ev = grpc_completion_queue_next(cq_, deadline, nullptr); |
| if (ev.type != GRPC_QUEUE_TIMEOUT) { |
| FailUnexpectedEvent(&ev, location); |
| } |
| } |
| |
| void CqVerifier::Expect(void* tag, ExpectedResult result, |
| SourceLocation location) { |
| expectations_.push_back(Expectation{location, tag, result}); |
| } |
| |
| } // namespace grpc_core |