127 lines
3.3 KiB
C++
127 lines
3.3 KiB
C++
// Copyright 2023 The Pigweed Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License"); you may not
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// use this file except in compliance with the License. You may obtain a copy of
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// the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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// License for the specific language governing permissions and limitations under
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// the License.
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#include "pw_function/pointer.h"
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#include "gtest/gtest.h"
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#include "pw_function/function.h"
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namespace pw::function {
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namespace {
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extern "C" void pw_function_test_InvokeFromCApi(void (*function)(void* context),
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void* context) {
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function(context);
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}
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extern "C" int pw_function_test_Sum(int (*summer)(int a, int b, void* context),
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void* context) {
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return summer(60, 40, context);
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}
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TEST(StaticInvoker, Function_NoArguments) {
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int value = 0;
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Function<void()> set_value_to_42([&value] { value += 42; });
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pw_function_test_InvokeFromCApi(GetFunctionPointer(set_value_to_42),
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&set_value_to_42);
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EXPECT_EQ(value, 42);
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pw_function_test_InvokeFromCApi(
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GetFunctionPointer<decltype(set_value_to_42)>(), &set_value_to_42);
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EXPECT_EQ(value, 84);
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}
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TEST(StaticInvoker, Function_WithArguments) {
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int sum = 0;
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Function<int(int, int)> sum_stuff([&sum](int a, int b) {
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sum += a + b;
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return a + b;
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});
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EXPECT_EQ(100,
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pw_function_test_Sum(GetFunctionPointer(sum_stuff), &sum_stuff));
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EXPECT_EQ(sum, 100);
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EXPECT_EQ(100,
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pw_function_test_Sum(GetFunctionPointer<decltype(sum_stuff)>(),
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&sum_stuff));
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EXPECT_EQ(sum, 200);
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}
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TEST(StaticInvoker, Callback_NoArguments) {
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int value = 0;
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Callback<void()> set_value_to_42([&value] { value += 42; });
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pw_function_test_InvokeFromCApi(GetFunctionPointer(set_value_to_42),
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&set_value_to_42);
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EXPECT_EQ(value, 42);
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}
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TEST(StaticInvoker, Callback_WithArguments) {
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int sum = 0;
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Callback<int(int, int)> sum_stuff([&sum](int a, int b) {
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sum += a + b;
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return a + b;
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});
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EXPECT_EQ(100,
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pw_function_test_Sum(GetFunctionPointer<decltype(sum_stuff)>(),
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&sum_stuff));
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EXPECT_EQ(sum, 100);
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}
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TEST(StaticInvoker, Lambda_NoArguments) {
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int value = 0;
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auto set_value_to_42([&value] { value += 42; });
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pw_function_test_InvokeFromCApi(GetFunctionPointer(set_value_to_42),
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&set_value_to_42);
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EXPECT_EQ(value, 42);
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pw_function_test_InvokeFromCApi(
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GetFunctionPointer<decltype(set_value_to_42)>(), &set_value_to_42);
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EXPECT_EQ(value, 84);
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}
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TEST(StaticInvoker, Lambda_WithArguments) {
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int sum = 0;
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auto sum_stuff = [&sum](int a, int b) {
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sum += a + b;
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return a + b;
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};
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EXPECT_EQ(100,
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pw_function_test_Sum(GetFunctionPointer(sum_stuff), &sum_stuff));
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EXPECT_EQ(sum, 100);
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EXPECT_EQ(100,
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pw_function_test_Sum(GetFunctionPointer<decltype(sum_stuff)>(),
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&sum_stuff));
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EXPECT_EQ(sum, 200);
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}
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} // namespace
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} // namespace pw::function
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