libc/test/UnitTest/TestLogger.h

   1 //===-- Utilities to log to standard output during tests --------*- C++ -*-===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #ifndef LLVM_LIBC_TEST_UNITTEST_TESTLOGGER_H
  10 #define LLVM_LIBC_TEST_UNITTEST_TESTLOGGER_H
  11
  12 namespace __llvm_libc {
  13 namespace testing {
  14
  15 // A class to log to standard output in the context of hermetic tests.
  16 struct TestLogger {
  17   constexpr TestLogger() = default;
  18   template <typename T> TestLogger &operator<<(T);
  19 };
  20
  21 // A global TestLogger instance to be used in tests.
  22 extern TestLogger tlog;
  23
  24 } // namespace testing
  25 } // namespace __llvm_libc
  26
  27 #endif /* LLVM_LIBC_TEST_UNITTEST_TESTLOGGER_H */