1 #include <gtest/gtest.h> 2 #include <string.h> 3 4 using namespace testing::ext; 5 6 constexpr size_t SRC_SIZE = 1024; 7 8 class StringMemcpyTest : public testing::Test { SetUp()9 void SetUp() override {} TearDown()10 void TearDown() override {} 11 }; 12 13 /** 14 * @tc.name: memcpy_001 15 * @tc.desc: Verify that memcpy can accurately copy an entire string including the null terminator. 16 * @tc.type: FUNC 17 */ 18 HWTEST_F(StringMemcpyTest, memcpy_001, TestSize.Level1) 19 { 20 char dst[] = "Hello, World!"; 21 char src[SRC_SIZE]; 22 memcpy(src, dst, sizeof(dst)); 23 EXPECT_STREQ(src, dst); 24 } 25 26 /** 27 * @tc.name: memcpy_002 28 * @tc.desc: Check if memcpy does not alter the source string when copying zero bytes. 29 * @tc.type: FUNC 30 */ 31 HWTEST_F(StringMemcpyTest, memcpy_002, TestSize.Level1) 32 { 33 const char* dst = "Hello, World!"; 34 char src[SRC_SIZE] = {}; 35 memcpy(src, dst, 0); 36 EXPECT_STREQ(src, ""); 37 }