Question about String.Equals()

Question

Why the following code(#1) returns false but code (#2) returns true. (#1) string temp = sbTemp.ToString(); return temp.Equals(expectedOutputStream.ReadToEnd()); (#2) string temp = sbTemp.ToString(); string expectedOutput = expectedOutputStream.ReadToEnd(); return temp.Equals(expectedOutput);

Nilanka Dharmadasa · Answer

I could not recreate the said problem. Anyway it seems when you directly call 'ReadToEnd()' it returns some unnecessary characters too with the expected outout. If you call a Trim() and see whether it works. expectedOutputStream.ReadToEnd().Trim()

jinge · Answer

Hi Jack Li The best way to know why is to place a breakpoint in temp.Equals(expectStream.ReadToEnd()) and see what expectStream.ReadToEnd() returns. Actually It's not a good practice to write code like that. expectStream.ReadToEnd() may throw exceptions. So the statement is not stable. I think the problem is caused by not closing the stream using expectStream.Close method.