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//* 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.
#ifndef MOCK_WEBGPU_H
#define MOCK_WEBGPU_H
#include <dawn/dawn_proc_table.h>
#include <dawn/webgpu.h>
#include <gmock/gmock.h>
#include <memory>
// An abstract base class representing a proc table so that API calls can be mocked. Most API calls
// are directly represented by a delete virtual method but others need minimal state tracking to be
// useful as mocks.
class ProcTableAsClass {
public:
virtual ~ProcTableAsClass();
void GetProcTableAndDevice(DawnProcTable* table, WGPUDevice* device);
// Creates an object that can be returned by a mocked call as in WillOnce(Return(foo)).
// It returns an object of the write type that isn't equal to any previously returned object.
// Otherwise some mock expectation could be triggered by two different objects having the same
// value.
{% for type in by_category["object"] %}
{{as_cType(type.name)}} GetNew{{type.name.CamelCase()}}();
{% endfor %}
{% for type in by_category["object"] %}
{% for method in type.methods if not has_callback_arguments(method) %}
virtual {{as_cType(method.return_type.name)}} {{as_MethodSuffix(type.name, method.name)}}(
{{-as_cType(type.name)}} {{as_varName(type.name)}}
{%- for arg in method.arguments -%}
, {{as_annotated_cType(arg)}}
{%- endfor -%}
) = 0;
{% endfor %}
virtual void {{as_MethodSuffix(type.name, Name("reference"))}}({{as_cType(type.name)}} self) = 0;
virtual void {{as_MethodSuffix(type.name, Name("release"))}}({{as_cType(type.name)}} self) = 0;
{% for method in type.methods if has_callback_arguments(method) %}
{% set Suffix = as_MethodSuffix(type.name, method.name) %}
//* Stores callback and userdata and calls the On* method.
{{as_cType(method.return_type.name)}} {{Suffix}}(
{{-as_cType(type.name)}} {{as_varName(type.name)}}
{%- for arg in method.arguments -%}
, {{as_annotated_cType(arg)}}
{%- endfor -%}
);
//* The virtual function to call after saving the callback and userdata in the proc.
//* This function can be mocked.
virtual {{as_cType(method.return_type.name)}} On{{Suffix}}(
{{-as_cType(type.name)}} {{as_varName(type.name)}}
{%- for arg in method.arguments -%}
, {{as_annotated_cType(arg)}}
{%- endfor -%}
) = 0;
//* Calls the stored callback.
{% for callback_arg in method.arguments if callback_arg.type.category == 'function pointer' %}
void Call{{as_MethodSuffix(type.name, method.name)}}Callback(
{{-as_cType(type.name)}} {{as_varName(type.name)}}
{%- for arg in callback_arg.type.arguments -%}
{%- if not loop.last -%}, {{as_annotated_cType(arg)}}{%- endif -%}
{%- endfor -%}
);
{% endfor %}
{% endfor %}
{% endfor %}
struct Object {
ProcTableAsClass* procs = nullptr;
{% for type in by_category["object"] %}
{% for method in type.methods if has_callback_arguments(method) %}
{% for callback_arg in method.arguments if callback_arg.type.category == 'function pointer' %}
{{as_cType(callback_arg.type.name)}} m{{as_MethodSuffix(type.name, method.name)}}Callback = nullptr;
{% endfor %}
{% endfor %}
{% endfor %}
void* userdata = 0;
};
private:
// Remembers the values returned by GetNew* so they can be freed.
std::vector<std::unique_ptr<Object>> mObjects;
};
class MockProcTable : public ProcTableAsClass {
public:
MockProcTable();
~MockProcTable() override;
void IgnoreAllReleaseCalls();
{% for type in by_category["object"] %}
{% for method in type.methods if not has_callback_arguments(method) %}
MOCK_METHOD({{as_cType(method.return_type.name)}},{{" "}}
{{-as_MethodSuffix(type.name, method.name)}}, (
{{-as_cType(type.name)}} {{as_varName(type.name)}}
{%- for arg in method.arguments -%}
, {{as_annotated_cType(arg)}}
{%- endfor -%}
), (override));
{% endfor %}
MOCK_METHOD(void, {{as_MethodSuffix(type.name, Name("reference"))}}, ({{as_cType(type.name)}} self), (override));
MOCK_METHOD(void, {{as_MethodSuffix(type.name, Name("release"))}}, ({{as_cType(type.name)}} self), (override));
{% for method in type.methods if has_callback_arguments(method) %}
MOCK_METHOD({{as_cType(method.return_type.name)}},{{" "-}}
On{{as_MethodSuffix(type.name, method.name)}}, (
{{-as_cType(type.name)}} {{as_varName(type.name)}}
{%- for arg in method.arguments -%}
, {{as_annotated_cType(arg)}}
{%- endfor -%}
), (override));
{% endfor %}
{% endfor %}
};
#endif // MOCK_WEBGPU_H