Add ReferenceCountedPtr class.

2 files changed, 149 insertions, 0 deletions

diff --git a/test/core/support/BUILD b/test/core/support/BUILD
index ee20ef8692..1a8d2a1359 100644
--- a/test/core/support/BUILD
+++ b/test/core/support/BUILD
@@ -246,3 +246,17 @@ grpc_cc_test(
         "gtest",
     ],
 )
+
+grpc_cc_test(
+    name = "reference_counted_ptr_test",
+    srcs = ["reference_counted_ptr_test.cc"],
+    language = "C++",
+    deps = [
+        "//:reference_counted",
+        "//:reference_counted_ptr",
+        "//test/core/util:gpr_test_util",
+    ],
+    external_deps = [
+        "gtest",
+    ],
+)
diff --git a/test/core/support/reference_counted_ptr_test.cc b/test/core/support/reference_counted_ptr_test.cc
new file mode 100644
index 0000000000..7347ef5e4b
--- /dev/null
+++ b/test/core/support/reference_counted_ptr_test.cc
@@ -0,0 +1,135 @@
+/*
+ *
+ * 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/support/reference_counted_ptr.h"
+
+#include <gtest/gtest.h>
+
+#include <grpc/support/log.h>
+
+#include "src/core/lib/support/memory.h"
+#include "src/core/lib/support/reference_counted.h"
+#include "test/core/util/test_config.h"
+
+namespace grpc_core {
+namespace testing {
+
+class Foo : public ReferenceCounted {
+ public:
+  Foo() : ReferenceCounted(nullptr) {}
+
+  void log() { 
+    gpr_log(GPR_INFO, "==> log()");
+  }
+};
+
+TEST(ReferenceCountedPtr, DefaultConstructor) {
+  ReferenceCountedPtr<Foo> foo;
+}
+
+TEST(ReferenceCountedPtr, ExplicitConstructorEmpty) {
+  ReferenceCountedPtr<Foo> foo(nullptr);
+}
+
+TEST(ReferenceCountedPtr, ExplicitConstructor) {
+  ReferenceCountedPtr<Foo> foo(New<Foo>());
+}
+
+TEST(ReferenceCountedPtr, MoveConstructor) {
+  ReferenceCountedPtr<Foo> foo(New<Foo>());
+  ReferenceCountedPtr<Foo> foo2(std::move(foo));
+  EXPECT_EQ(nullptr, foo.get());
+  EXPECT_NE(nullptr, foo2.get());
+}
+
+TEST(ReferenceCountedPtr, MoveAssignment) {
+  ReferenceCountedPtr<Foo> foo(New<Foo>());
+  ReferenceCountedPtr<Foo> foo2 = std::move(foo);
+  EXPECT_EQ(nullptr, foo.get());
+  EXPECT_NE(nullptr, foo2.get());
+}
+
+TEST(ReferenceCountedPtr, CopyConstructor) {
+  ReferenceCountedPtr<Foo> foo(New<Foo>());
+  ReferenceCountedPtr<Foo> foo2(foo);
+  EXPECT_NE(nullptr, foo.get());
+  EXPECT_EQ(foo.get(), foo2.get());
+}
+
+TEST(ReferenceCountedPtr, CopyAssignment) {
+  ReferenceCountedPtr<Foo> foo(New<Foo>());
+  ReferenceCountedPtr<Foo> foo2 = foo;
+  EXPECT_NE(nullptr, foo.get());
+  EXPECT_EQ(foo.get(), foo2.get());
+}
+
+TEST(ReferenceCountedPtr, EnclosedScope) {
+  ReferenceCountedPtr<Foo> foo(New<Foo>());
+  {
+    ReferenceCountedPtr<Foo> foo2(std::move(foo));
+    EXPECT_EQ(nullptr, foo.get());
+    EXPECT_NE(nullptr, foo2.get());
+  }
+  EXPECT_EQ(nullptr, foo.get());
+}
+
+TEST(ReferenceCountedPtr, ResetFromNullToNonNull) {
+  ReferenceCountedPtr<Foo> foo;
+  EXPECT_EQ(nullptr, foo.get());
+  foo.reset(New<Foo>());
+  EXPECT_NE(nullptr, foo.get());
+}
+
+TEST(ReferenceCountedPtr, ResetFromNonNullToNonNull) {
+  ReferenceCountedPtr<Foo> foo(New<Foo>());
+  EXPECT_NE(nullptr, foo.get());
+  Foo* original = foo.get();
+  foo.reset(New<Foo>());
+  EXPECT_NE(nullptr, foo.get());
+  EXPECT_NE(original, foo.get());
+}
+
+TEST(ReferenceCountedPtr, ResetFromNonNullToNull) {
+  ReferenceCountedPtr<Foo> foo(New<Foo>());
+  EXPECT_NE(nullptr, foo.get());
+  foo.reset();
+  EXPECT_EQ(nullptr, foo.get());
+}
+
+TEST(ReferenceCountedPtr, ResetFromNullToNull) {
+  ReferenceCountedPtr<Foo> foo;
+  EXPECT_EQ(nullptr, foo.get());
+  foo.reset(nullptr);
+  EXPECT_EQ(nullptr, foo.get());
+}
+
+TEST(ReferenceCountedPtr, DerefernceOperators) {
+  ReferenceCountedPtr<Foo> foo(New<Foo>());
+  foo->log();
+  Foo& foo_ref = *foo;
+  foo_ref.log();
+}
+
+}  // namespace testing
+}  // namespace grpc_core
+
+int main(int argc, char** argv) {
+  grpc_test_init(argc, argv);
+  ::testing::InitGoogleTest(&argc, argv);
+  return RUN_ALL_TESTS();
+}