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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 09:22:09 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 09:22:09 +0000 |
commit | 43a97878ce14b72f0981164f87f2e35e14151312 (patch) | |
tree | 620249daf56c0258faa40cbdcf9cfba06de2a846 /mfbt/tests/TestDefineEnum.cpp | |
parent | Initial commit. (diff) | |
download | firefox-43a97878ce14b72f0981164f87f2e35e14151312.tar.xz firefox-43a97878ce14b72f0981164f87f2e35e14151312.zip |
Adding upstream version 110.0.1.upstream/110.0.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'mfbt/tests/TestDefineEnum.cpp')
-rw-r--r-- | mfbt/tests/TestDefineEnum.cpp | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/mfbt/tests/TestDefineEnum.cpp b/mfbt/tests/TestDefineEnum.cpp new file mode 100644 index 0000000000..b5fbe3a0fd --- /dev/null +++ b/mfbt/tests/TestDefineEnum.cpp @@ -0,0 +1,78 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this file, + * You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "mozilla/DefineEnum.h" + +// Sanity test for MOZ_DEFINE_ENUM. + +MOZ_DEFINE_ENUM(TestEnum1, (EnumeratorA, EnumeratorB, EnumeratorC)); + +static_assert(EnumeratorA == 0, "Unexpected enumerator value"); +static_assert(EnumeratorB == 1, "Unexpected enumerator value"); +static_assert(EnumeratorC == 2, "Unexpected enumerator value"); +static_assert(kHighestTestEnum1 == EnumeratorC, "Incorrect highest value"); +static_assert(kTestEnum1Count == 3, "Incorrect enumerator count"); + +// Sanity test for MOZ_DEFINE_ENUM_CLASS. + +MOZ_DEFINE_ENUM_CLASS(TestEnum2, (A, B, C)); + +static_assert(TestEnum2::A == TestEnum2(0), "Unexpected enumerator value"); +static_assert(TestEnum2::B == TestEnum2(1), "Unexpected enumerator value"); +static_assert(TestEnum2::C == TestEnum2(2), "Unexpected enumerator value"); +static_assert(kHighestTestEnum2 == TestEnum2::C, "Incorrect highest value"); +static_assert(kTestEnum2Count == 3, "Incorrect enumerator count"); + +// TODO: Test that the _WITH_BASE variants generate enumerators with the +// correct underlying types. To do this, we need an |UnderlyingType| +// type trait, which needs compiler support (recent versions of +// compilers in the GCC family provide an |__underlying_type| builtin +// for this purpose. + +// Sanity test for MOZ_DEFINE_ENUM[_CLASS]_AT_CLASS_SCOPE. + +struct TestClass { + // clang-format off + MOZ_DEFINE_ENUM_AT_CLASS_SCOPE( + TestEnum3, ( + EnumeratorA, + EnumeratorB, + EnumeratorC + )); + + MOZ_DEFINE_ENUM_CLASS_AT_CLASS_SCOPE( + TestEnum4, ( + A, + B, + C + )); + // clang-format on + + static_assert(EnumeratorA == 0, "Unexpected enumerator value"); + static_assert(EnumeratorB == 1, "Unexpected enumerator value"); + static_assert(EnumeratorC == 2, "Unexpected enumerator value"); + static_assert(sHighestTestEnum3 == EnumeratorC, "Incorrect highest value"); + static_assert(sTestEnum3Count == 3, "Incorrect enumerator count"); + + static_assert(TestEnum4::A == TestEnum4(0), "Unexpected enumerator value"); + static_assert(TestEnum4::B == TestEnum4(1), "Unexpected enumerator value"); + static_assert(TestEnum4::C == TestEnum4(2), "Unexpected enumerator value"); + static_assert(sHighestTestEnum4 == TestEnum4::C, "Incorrect highest value"); + static_assert(sTestEnum4Count == 3, "Incorrect enumerator count"); +}; + +// Test that MOZ_DEFINE_ENUM doesn't allow giving enumerators initializers. + +#ifdef CONFIRM_COMPILATION_ERRORS +MOZ_DEFINE_ENUM_CLASS(EnumWithInitializer1, (A = -1, B, C)) +MOZ_DEFINE_ENUM_CLASS(EnumWithInitializer2, (A = 1, B, C)) +MOZ_DEFINE_ENUM_CLASS(EnumWithInitializer3, (A, B = 6, C)) +#endif + +int main() { + // Nothing to do here, all tests are static_asserts. + return 0; +} |