| 1 | //===-- Unittests for strlcat ---------------------------------------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | #include "src/string/strlcat.h" |
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| 10 | #include "test/UnitTest/Test.h" |
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| 11 | |
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| 12 | TEST(LlvmLibcStrlcatTest, TooBig) { |
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| 13 | const char *str = "cd" ; |
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| 14 | char buf[4]{"ab" }; |
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| 15 | EXPECT_EQ(LIBC_NAMESPACE::strlcat(buf, str, 3), size_t(4)); |
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| 16 | EXPECT_STREQ(buf, "ab" ); |
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| 17 | EXPECT_EQ(LIBC_NAMESPACE::strlcat(buf, str, 4), size_t(4)); |
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| 18 | EXPECT_STREQ(buf, "abc" ); |
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| 19 | } |
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| 20 | |
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| 21 | TEST(LlvmLibcStrlcatTest, Smaller) { |
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| 22 | const char *str = "cd" ; |
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| 23 | char buf[7]{"ab" }; |
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| 24 | |
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| 25 | EXPECT_EQ(LIBC_NAMESPACE::strlcat(buf, str, 7), size_t(4)); |
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| 26 | EXPECT_STREQ(buf, "abcd" ); |
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| 27 | } |
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| 28 | |
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| 29 | TEST(LlvmLibcStrlcatTest, SmallerNoOverwriteAfter0) { |
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| 30 | const char *str = "cd" ; |
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| 31 | char buf[8]{"ab\0\0efg" }; |
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| 32 | |
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| 33 | EXPECT_EQ(LIBC_NAMESPACE::strlcat(buf, str, 8), size_t(4)); |
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| 34 | EXPECT_STREQ(buf, "abcd" ); |
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| 35 | EXPECT_STREQ(buf + 5, "fg" ); |
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| 36 | } |
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| 37 | |
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| 38 | TEST(LlvmLibcStrlcatTest, No0) { |
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| 39 | const char *str = "cd" ; |
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| 40 | char buf[7]{"ab" }; |
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| 41 | EXPECT_EQ(LIBC_NAMESPACE::strlcat(buf, str, 1), size_t(3)); |
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| 42 | EXPECT_STREQ(buf, "ab" ); |
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| 43 | EXPECT_EQ(LIBC_NAMESPACE::strlcat(buf, str, 2), size_t(4)); |
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| 44 | EXPECT_STREQ(buf, "ab" ); |
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| 45 | } |
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| 46 | |
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