public void FindUniqChar_WitNullArg_Test()
{
// arrange
string str = "abhcir";
string str2 = null;
string expected = "abchir";
// act
string result = FindUniqChar.Exec(str, str2);
// assert
Assert.AreEqual(expected, result);
}
public void FindUniqChar_TwoArgs_Test()
{
// arrange
string str = ("abhcir");
string str2 = ("hi");
string expected = "abchir";
// act
string result = FindUniqChar.Exec(str, str2);
// assert
Assert.AreEqual(expected, result);
}