| // Copyright 2017 The Dawn 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 <utility> |
| |
| #include "dawn/webgpu_cpp.h" |
| #include "gtest/gtest.h" |
| |
| class Object : public wgpu::ObjectBase<Object, int*> { |
| public: |
| using ObjectBase::ObjectBase; |
| using ObjectBase::operator=; |
| |
| static void WGPUReference(int* handle) { |
| ASSERT_LE(0, *handle); |
| *handle += 1; |
| } |
| static void WGPURelease(int* handle) { |
| ASSERT_LT(0, *handle); |
| *handle -= 1; |
| } |
| }; |
| |
| // Test that creating an C++ object from a C object takes a ref. |
| // Also test that the C++ object destructor removes a ref. |
| TEST(ObjectBase, CTypeConstructor) { |
| int refcount = 1; |
| { |
| Object obj(&refcount); |
| ASSERT_EQ(2, refcount); |
| } |
| ASSERT_EQ(1, refcount); |
| } |
| |
| // Test consuming a C object into a C++ object doesn't take a ref. |
| TEST(ObjectBase, AcquireConstruction) { |
| int refcount = 1; |
| { |
| Object object = Object::Acquire(&refcount); |
| ASSERT_EQ(1, refcount); |
| } |
| ASSERT_EQ(0, refcount); |
| } |
| |
| // Test .Get(). |
| TEST(ObjectBase, Get) { |
| int refcount = 1; |
| { |
| Object obj1(&refcount); |
| |
| ASSERT_EQ(2, refcount); |
| ASSERT_EQ(&refcount, obj1.Get()); |
| } |
| ASSERT_EQ(1, refcount); |
| } |
| |
| // Test that Release consumes the C++ object into a C object and doesn't release |
| TEST(ObjectBase, Release) { |
| int refcount = 1; |
| { |
| Object obj(&refcount); |
| ASSERT_EQ(2, refcount); |
| |
| ASSERT_EQ(&refcount, obj.Release()); |
| ASSERT_EQ(nullptr, obj.Get()); |
| ASSERT_EQ(2, refcount); |
| } |
| ASSERT_EQ(2, refcount); |
| } |
| |
| // Test using C++ objects in conditions |
| TEST(ObjectBase, OperatorBool) { |
| int refcount = 1; |
| Object trueObj(&refcount); |
| Object falseObj; |
| |
| if (falseObj || !trueObj) { |
| ASSERT_TRUE(false); |
| } |
| } |
| |
| // Test the copy constructor of C++ objects |
| TEST(ObjectBase, CopyConstructor) { |
| int refcount = 1; |
| |
| Object source(&refcount); |
| Object destination(source); |
| |
| ASSERT_EQ(source.Get(), &refcount); |
| ASSERT_EQ(destination.Get(), &refcount); |
| ASSERT_EQ(3, refcount); |
| |
| destination = Object(); |
| ASSERT_EQ(refcount, 2); |
| } |
| |
| // Test the copy assignment of C++ objects |
| TEST(ObjectBase, CopyAssignment) { |
| int refcount = 1; |
| Object source(&refcount); |
| |
| Object destination; |
| destination = source; |
| |
| ASSERT_EQ(source.Get(), &refcount); |
| ASSERT_EQ(destination.Get(), &refcount); |
| ASSERT_EQ(3, refcount); |
| |
| destination = Object(); |
| ASSERT_EQ(refcount, 2); |
| } |
| |
| // Test the repeated copy assignment of C++ objects |
| TEST(ObjectBase, RepeatedCopyAssignment) { |
| int refcount = 1; |
| Object source(&refcount); |
| |
| Object destination; |
| for (int i = 0; i < 10; i++) { |
| destination = source; |
| } |
| |
| ASSERT_EQ(source.Get(), &refcount); |
| ASSERT_EQ(destination.Get(), &refcount); |
| ASSERT_EQ(3, refcount); |
| |
| destination = Object(); |
| ASSERT_EQ(refcount, 2); |
| } |
| |
| // Test the copy assignment of C++ objects onto themselves |
| TEST(ObjectBase, CopyAssignmentSelf) { |
| int refcount = 1; |
| |
| Object obj(&refcount); |
| |
| // Fool the compiler to avoid a -Wself-assign-overload |
| Object* objPtr = &obj; |
| obj = *objPtr; |
| |
| ASSERT_EQ(obj.Get(), &refcount); |
| ASSERT_EQ(refcount, 2); |
| } |
| |
| // Test the move constructor of C++ objects |
| TEST(ObjectBase, MoveConstructor) { |
| int refcount = 1; |
| Object source(&refcount); |
| Object destination(std::move(source)); |
| |
| ASSERT_EQ(destination.Get(), &refcount); |
| ASSERT_EQ(2, refcount); |
| |
| destination = Object(); |
| ASSERT_EQ(refcount, 1); |
| } |
| |
| // Test the move assignment of C++ objects |
| TEST(ObjectBase, MoveAssignment) { |
| int refcount = 1; |
| Object source(&refcount); |
| |
| Object destination; |
| destination = std::move(source); |
| |
| ASSERT_EQ(destination.Get(), &refcount); |
| ASSERT_EQ(2, refcount); |
| |
| destination = Object(); |
| ASSERT_EQ(refcount, 1); |
| } |
| |
| // Test the move assignment of C++ objects onto themselves |
| TEST(ObjectBase, MoveAssignmentSelf) { |
| int refcount = 1; |
| |
| Object obj(&refcount); |
| |
| // Fool the compiler to avoid a -Wself-move |
| Object* objPtr = &obj; |
| obj = std::move(*objPtr); |
| |
| ASSERT_EQ(obj.Get(), &refcount); |
| ASSERT_EQ(refcount, 2); |
| } |
| |
| // Test the constructor using nullptr |
| TEST(ObjectBase, NullptrConstructor) { |
| Object obj(nullptr); |
| ASSERT_EQ(obj.Get(), nullptr); |
| } |
| |
| // Test assigning nullptr to the object |
| TEST(ObjectBase, AssignNullptr) { |
| int refcount = 1; |
| |
| Object obj(&refcount); |
| ASSERT_EQ(refcount, 2); |
| |
| obj = nullptr; |
| ASSERT_EQ(refcount, 1); |
| } |