diff options
Diffstat (limited to 'test/core/slice/slice_weak_hash_table_test.cc')
-rw-r--r-- | test/core/slice/slice_weak_hash_table_test.cc | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/test/core/slice/slice_weak_hash_table_test.cc b/test/core/slice/slice_weak_hash_table_test.cc new file mode 100644 index 0000000000..4711d2fd26 --- /dev/null +++ b/test/core/slice/slice_weak_hash_table_test.cc @@ -0,0 +1,105 @@ +/* + * + * Copyright 2017 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 "src/core/lib/slice/slice_weak_hash_table.h" + +#include <cstring> +#include <sstream> + +#include <gtest/gtest.h> + +#include <grpc/support/alloc.h> +#include <grpc/support/log.h> +#include <grpc/support/string_util.h> + +#include "src/core/lib/gpr/useful.h" +#include "src/core/lib/slice/slice_internal.h" +#include "test/core/util/test_config.h" + +namespace grpc_core { +namespace { + +grpc_slice BuildRefCountedKey(const char* key_str) { + const size_t key_length = strlen(key_str); + grpc_slice key = grpc_slice_malloc_large(key_length); + memcpy(GRPC_SLICE_START_PTR(key), key_str, key_length); + return key; +} + +TEST(SliceWeakHashTable, Basic) { + auto table = SliceWeakHashTable<UniquePtr<char>, 10>::Create(); + // Single key-value insertion. + grpc_slice key = BuildRefCountedKey("key"); + grpc_slice_ref(key); // Get doesn't own. + table->Add(key, UniquePtr<char>(gpr_strdup("value"))); + ASSERT_NE(table->Get(key), nullptr); + ASSERT_STREQ(table->Get(key)->get(), "value"); + grpc_slice_unref(key); + // Unknown key. + ASSERT_EQ(table->Get(grpc_slice_from_static_string("unknown_key")), nullptr); +} + +TEST(SliceWeakHashTable, ValueTypeConstructor) { + struct Value { + Value() : a(123) {} + int a; + }; + auto table = SliceWeakHashTable<Value, 1>::Create(); + grpc_slice key = BuildRefCountedKey("key"); + grpc_slice_ref(key); // Get doesn't own. + table->Add(key, Value()); + ASSERT_EQ(table->Get(key)->a, 123); + grpc_slice_unref(key); +} + +TEST(SliceWeakHashTable, ForceOverload) { + constexpr int kTableSize = 10; + auto table = SliceWeakHashTable<UniquePtr<char>, kTableSize>::Create(); + // Insert a multiple of the maximum size table. + for (int i = 0; i < kTableSize * 2; ++i) { + std::ostringstream oss; + oss << "key-" << i; + grpc_slice key = BuildRefCountedKey(oss.str().c_str()); + oss.clear(); + oss << "value-" << i; + table->Add(key, UniquePtr<char>(gpr_strdup(oss.str().c_str()))); + } + // Verify that some will have been replaced. + int num_missing = 0; + for (int i = 0; i < kTableSize * 2; ++i) { + std::ostringstream oss; + oss << "key-" << i; + grpc_slice key = BuildRefCountedKey(oss.str().c_str()); + if (table->Get(key) == nullptr) num_missing++; + grpc_slice_unref(key); + } + // At least kTableSize elements will be missing. + ASSERT_GE(num_missing, kTableSize); +} + +} // namespace +} // namespace grpc_core + +int main(int argc, char** argv) { + ::testing::InitGoogleTest(&argc, argv); + grpc_test_init(argc, argv); + grpc_core::ExecCtx::GlobalInit(); + int result = RUN_ALL_TESTS(); + grpc_core::ExecCtx::GlobalShutdown(); + return result; +} |