| //===-- Unittests for memcmp ----------------------------------------------===// |
| // |
| // 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 |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "src/string/memcmp.h" |
| #include "utils/UnitTest/Test.h" |
| |
| TEST(LlvmLibcMemcmpTest, CmpZeroByte) { |
| const char *lhs = "ab"; |
| const char *rhs = "bc"; |
| EXPECT_EQ(__llvm_libc::memcmp(lhs, rhs, 0), 0); |
| } |
| |
| TEST(LlvmLibcMemcmpTest, LhsRhsAreTheSame) { |
| const char *lhs = "ab"; |
| const char *rhs = "ab"; |
| EXPECT_EQ(__llvm_libc::memcmp(lhs, rhs, 2), 0); |
| } |
| |
| TEST(LlvmLibcMemcmpTest, LhsBeforeRhsLexically) { |
| const char *lhs = "ab"; |
| const char *rhs = "ac"; |
| EXPECT_EQ(__llvm_libc::memcmp(lhs, rhs, 2), -1); |
| } |
| |
| TEST(LlvmLibcMemcmpTest, LhsAfterRhsLexically) { |
| const char *lhs = "ac"; |
| const char *rhs = "ab"; |
| EXPECT_EQ(__llvm_libc::memcmp(lhs, rhs, 2), 1); |
| } |