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//===- Test.h - Simple macros for API unit tests ----------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file define simple macros for declaring test functions and running them.
// The actual checking must be performed on the outputs with FileCheck.
//
//===----------------------------------------------------------------------===//
#ifndef MLIR_TEST_TEST_H_
#define MLIR_TEST_TEST_H_
#include <functional>
#include <vector>
namespace test_detail {
// Returns a mutable list of known test functions. Used internally by test
// macros to add and run tests. This function is static to ensure it creates a
// new list in each test file.
static std::vector<std::function<void()>> &tests() {
static std::vector<std::function<void()>> list;
return list;
}
// Test registration class. Used internally by test macros to register tests
// during static allocation.
struct TestRegistration {
explicit TestRegistration(std::function<void()> func) {
test_detail::tests().push_back(func);
}
};
} // end namespace test_detail
/// Declares a test function with the given name and adds it to the list of
/// known tests. The body of the function must follow immediately. Example:
///
/// TEST_FUNC(mytest) {
/// // CHECK: expected-output-here
/// emitSomethingToStdOut();
/// }
///
#define TEST_FUNC(name) \
void name(); \
static test_detail::TestRegistration name##Registration(name); \
void name()
/// Runs all registered tests. Example:
///
/// int main() {
/// RUN_TESTS();
/// return 0;
/// }
#define RUN_TESTS \
[]() { \
for (auto f : test_detail::tests()) \
f(); \
}
#endif // MLIR_TEST_TEST_H_
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