af1315c28f
This part of the effort to make all test related pieces into the `test` directory. This helps is excluding test related pieces in a straight forward manner if LLVM_INCLUDE_TESTS is OFF. Future patches will also move the MPFR wrapper and testutils into the 'test' directory.
51 lines
2.1 KiB
C++
51 lines
2.1 KiB
C++
//===-- Unittests for strcspn ---------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "src/string/strcspn.h"
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#include "test/UnitTest/Test.h"
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TEST(LlvmLibcStrCSpnTest, ComplementarySpanShouldNotGoPastNullTerminator) {
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const char src[5] = {'a', 'b', '\0', 'c', 'd'};
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EXPECT_EQ(__llvm_libc::strcspn(src, "b"), size_t{1});
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EXPECT_EQ(__llvm_libc::strcspn(src, "d"), size_t{2});
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// Same goes for the segment to be searched for.
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const char segment[5] = {'1', '2', '\0', '3', '4'};
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EXPECT_EQ(__llvm_libc::strcspn("123", segment), size_t{0});
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}
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TEST(LlvmLibcStrCSpnTest, ComplementarySpanForEachIndividualCharacter) {
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const char *src = "12345";
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// The complementary span size should increment accordingly.
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EXPECT_EQ(__llvm_libc::strcspn(src, "1"), size_t{0});
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EXPECT_EQ(__llvm_libc::strcspn(src, "2"), size_t{1});
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EXPECT_EQ(__llvm_libc::strcspn(src, "3"), size_t{2});
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EXPECT_EQ(__llvm_libc::strcspn(src, "4"), size_t{3});
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EXPECT_EQ(__llvm_libc::strcspn(src, "5"), size_t{4});
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}
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TEST(LlvmLibcStrCSpnTest, ComplementarySpanIsStringLengthIfNoCharacterFound) {
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// Null terminator.
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EXPECT_EQ(__llvm_libc::strcspn("", ""), size_t{0});
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EXPECT_EQ(__llvm_libc::strcspn("", "_"), size_t{0});
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// Single character.
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EXPECT_EQ(__llvm_libc::strcspn("a", "b"), size_t{1});
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// Multiple characters.
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EXPECT_EQ(__llvm_libc::strcspn("abc", "1"), size_t{3});
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}
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TEST(LlvmLibcStrCSpnTest, DuplicatedCharactersNotPartOfComplementarySpan) {
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// Complementary span should be zero in all these cases.
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EXPECT_EQ(__llvm_libc::strcspn("a", "aa"), size_t{0});
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EXPECT_EQ(__llvm_libc::strcspn("aa", "a"), size_t{0});
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EXPECT_EQ(__llvm_libc::strcspn("aaa", "aa"), size_t{0});
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EXPECT_EQ(__llvm_libc::strcspn("aaaa", "aa"), size_t{0});
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EXPECT_EQ(__llvm_libc::strcspn("aaaa", "baa"), size_t{0});
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}
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