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-rw-r--r--test/core/slice/slice_weak_hash_table_test.cc105
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diff --git a/test/core/slice/slice_weak_hash_table_test.cc b/test/core/slice/slice_weak_hash_table_test.cc
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+++ b/test/core/slice/slice_weak_hash_table_test.cc
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+/*
+ *
+ * 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;
+}