1 #include <gtest/gtest.h> 2 #include <stdint.h> 3 #include <string.h> 4 5 using namespace testing::ext; 6 7 class StringMemchrTest : public testing::Test { SetUp()8 void SetUp() override {} TearDown()9 void TearDown() override {} 10 }; 11 12 /** 13 * @tc.name: memchr_001 14 * @tc.desc: Test the memchr function to verify if it correctly handles empty string input, and if the target character 15 * does not exist in an empty string, returns nullptr. 16 * @tc.type: FUNC 17 */ 18 HWTEST_F(StringMemchrTest, memchr_001, TestSize.Level1) 19 { 20 const char* sourceString = ""; 21 const void* foundChar = memchr(sourceString, 'w', strlen(sourceString)); 22 EXPECT_EQ(foundChar, nullptr); 23 } 24 25 /** 26 * @tc.name: memchr_002 27 * @tc.desc: Test the memchr function to verify if it correctly handles the case where the maximum number of bytes to 28 * search is 0 and returns nullptr. 29 * @tc.type: FUNC 30 */ 31 HWTEST_F(StringMemchrTest, memchr_002, TestSize.Level1) 32 { 33 const char* sourceString = "Hello, world"; 34 const void* foundChar = memchr(sourceString, 'w', 0); 35 EXPECT_EQ(foundChar, nullptr); 36 } 37 38 /** 39 * @tc.name: memchr_003 40 * @tc.desc: Verify memchr ability to correctly search for a specified character in a given string and return the 41 * correct result. 42 * @tc.type: FUNC 43 */ 44 HWTEST_F(StringMemchrTest, memchr_003, TestSize.Level1) 45 { 46 const char* sourceString = "Hello, world"; 47 const void* foundChar = memchr(sourceString, 'w', strlen(sourceString)); 48 ASSERT_NE(foundChar, nullptr); 49 }