51 lines
1.2 KiB
C++
51 lines
1.2 KiB
C++
#include <gtest/gtest.h>
|
||
#include <solution/387.h>
|
||
|
||
class FirstUniqCharTest : public ::testing::Test
|
||
{
|
||
protected:
|
||
void AssertFirstUniqChar(const std::string &input, int expected)
|
||
{
|
||
char buf[1001];
|
||
strncpy(buf, input.c_str(), sizeof(buf));
|
||
buf[1000] = '\0'; // 防止越界
|
||
int result = firstUniqChar(buf);
|
||
EXPECT_EQ(result, expected);
|
||
}
|
||
};
|
||
|
||
// 示例 1：leetcode → 'l' 是第一个唯一字符，索引 0
|
||
TEST_F(FirstUniqCharTest, Example1)
|
||
{
|
||
AssertFirstUniqChar("leetcode", 0);
|
||
}
|
||
|
||
// 示例 2：loveleetcode → 'v' 是第一个唯一字符，索引 2
|
||
TEST_F(FirstUniqCharTest, Example2)
|
||
{
|
||
AssertFirstUniqChar("loveleetcode", 2);
|
||
}
|
||
|
||
// 示例 3：aabb → 没有唯一字符，返回 -1
|
||
TEST_F(FirstUniqCharTest, Example3)
|
||
{
|
||
AssertFirstUniqChar("aabb", -1);
|
||
}
|
||
|
||
// 边界测试：空字符串
|
||
TEST_F(FirstUniqCharTest, EmptyString)
|
||
{
|
||
AssertFirstUniqChar("", -1);
|
||
}
|
||
|
||
// 边界测试：单字符
|
||
TEST_F(FirstUniqCharTest, SingleChar)
|
||
{
|
||
AssertFirstUniqChar("z", 0);
|
||
}
|
||
|
||
// 更多测试：末尾唯一字符
|
||
TEST_F(FirstUniqCharTest, UniqueAtEnd)
|
||
{
|
||
AssertFirstUniqChar("aabbc", 4); // 'c' 是唯一字符
|
||
} |