Getting a handle on inf
Getting a handle on inf
- Subject: Getting a handle on inf
- From: Ian Piper <email@hidden>
- Date: Mon, 26 Oct 2009 18:26:47 +0000
Hi all,
Following up on my query about unit tests yesterday... I am writing
another test checking boundary conditions for a calculation. In the
normal running program I am feeding a very large number
(1000000000000000000000000000000000000000) into one text field and the
result displayed in the other text field is "inf". I want to write a
test to explore this, so I did this:
- (void)testVeryLargeNumberShouldReturnInf {
testConverter = Converter.new;
[testConverter setValue:[NSNumber numberWithFloat:
1000000000000000000000000000000000000000.0] forKey:@"originalTemp"];
NSNumber *newTemperatureInC = [NSNumber numberWithFloat:(float)
[testConverter convertFToC]];
STAssertEquals("inf", [newTemperatureInC floatValue], @"Expecting
inf; we got %f", [newTemperatureInC floatValue]);
[testTempConverter release];
}
When I run this test I see this message: Expecting inf; we got inf
I tried this:
STAssertEquals("inf", [newTemperatureInC stringValue], @"Expecting
inf; we got %s", [newTemperatureInC stringValue]);
and saw this message: Expecting inf; we got ¿√Ωpˇ
So I am guessing that when I get a float displayed as "inf" this is
not the string it seems to be. Also, it looks like the string value of
whatever is coming back is not something that I can use. Can anyone
suggest how I might handle a test case like this?
Thanks,
Ian.
--_______________________________________________
Cocoa-dev mailing list (email@hidden)
Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden