support.h

#pragma once

#include <c10/util/Exception.h>

#include <gtest/gtest.h>

#include <stdexcept>
#include <string>

namespace torch {
namespace test {
#define ASSERT_THROWS_WITH(statement, substring)                        \
  {                                                                     \
    std::string assert_throws_with_error_message;                       \
    try {                                                               \
      (void)statement;                                                  \
      FAIL() << "Expected statement `" #statement                       \
                "` to throw an exception, but it did not";              \
    } catch (const c10::Error& e) {                                     \
      assert_throws_with_error_message = e.what_without_backtrace();    \
    } catch (const std::exception& e) {                                 \
      assert_throws_with_error_message = e.what();                      \
    }                                                                   \
    if (assert_throws_with_error_message.find(substring) ==             \
        std::string::npos) {                                            \
      FAIL() << "Error message \"" << assert_throws_with_error_message  \
             << "\" did not contain expected substring \"" << substring \
             << "\"";                                                   \
    }                                                                   \
  }

} // namespace test
} // namespace torch