libc/test/src/string/strlcpy_test.cpp

   1 //===-- Unittests for strlcpy ---------------------------------------------===//
   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 #include "src/string/strlcpy.h"
  10 #include "test/UnitTest/Test.h"
  11
  12 TEST(LlvmLibcStrlcpyTest, TooBig) {
  13   const char *str = "abc";
  14   char buf[2];
  15   EXPECT_EQ(LIBC_NAMESPACE::strlcpy(buf, str, 2), size_t(3));
  16   EXPECT_STREQ(buf, "a");
  17
  18   EXPECT_EQ(LIBC_NAMESPACE::strlcpy(nullptr, str, 0), size_t(3));
  19 }
  20
  21 TEST(LlvmLibcStrlcpyTest, Smaller) {
  22   const char *str = "abc";
  23   char buf[7]{"111111"};
  24
  25   EXPECT_EQ(LIBC_NAMESPACE::strlcpy(buf, str, 7), size_t(3));
  26   EXPECT_STREQ(buf, "abc");
  27   EXPECT_STREQ(buf + 4, "11");
  28 }