The question was more like what tests should I be writing, fine if I remove the
pexpect test I tried the test_guess & test_guesstoolow and still unable to get
it to work. So if i Want to ask for a number and typed a number which is at
random indicated by the top of the code, how do I proceed on with my tests?
On Thursday, September 26, 2013 9:16:32 PM UTC-4, Roy Smith wrote:
> In article ,
>
> wrote:
>
>
>
> > Initially I was shown pexpect, leaving that there, Can i make up 5 tests? I
>
> > tried tests two different ways and no luck. What am I supposed to be
> > writing
>
> > up when I do a test and is there a particular way I can/should be
> > referencing
>
> > it back to its main file?
>
>
>
> I'm not sure I understand your question. Are you asking:
>
>
>
> Q1: "What tests should I be writing?"
>
>
>
> or
>
>
>
> Q2: "Once I know what I want to test, how do I implement those tests?"
>
>
>
> I'm guessing Q1, so that's what I'm going to base the rest of this post
>
> on. Before you cat write a test, you have to understand what your code
>
> is supposed to do. So, for example, let's say the specification for
>
> your program runs something like this:
>
>
>
> When you run the program, it will print, "I have chosen a number from
>
> 1-10", and then it will print, "Guess a number: ". It will then wait
>
> for input. When you type an integer, it will print either, "That's too
>
> high.", "That's too low.", or "That's right!".
>
>
>
> Now, let's look at one of your tests:
>
>
>
> def test_guessing_hi_low_4(self):
>
>
>
> # Conversation assuming number is 4
>
> child = pe.spawn('python guess.py')
>
> child.expect(self.intro,timeout=5)
>
> child.expect(self.request,timeout=5)
>
> child.sendline('5')
>
> child.expect(self.responseHigh,timeout=5)
>
> child.sendline('3')
>
> child.expect(self.responseLow,timeout=5)
>
> child.sendline('4')
>
> child.expect(self.responseCorrect,timeout=5)
>
> child.expect(self.goodbye,timeout=5)
>
>
>
> It looks pretty reasonable up to the point where you do:
>
>
>
> child.sendline('5')
>
> child.expect(self.responseHigh,timeout=5)
>
>
>
> The problem is, you don't know what number it picked, so you can't
>
> predict what response it will have to an input of 5. This goes back to
>
> what I was saying earlier. You need some way to set the game to a known
>
> state, so you can test its responses, in that state, to various inputs.
>
>
>
> If you're going to stick with the pexpect interface, then maybe you need
>
> a command line argument to override the random number generator and set
>
> the game to a specific number. So, you can run:
>
>
>
> $ python guess.py --test 4
>
>
>
> and now you know the number it has picked is 4. If you send it 5, it
>
> should tell you too high. If you send it 3, it should tell you too low.
>
> And so on.
>
>
>
> This is standard procedure in all kinds of testing. You need some way
>
> to set the system being tested to a known state. Then (and only then)
>
> can you apply various inputs and observe what outputs you get. This is
>
> true of hardware was well. Integrated circuits often have a "test
>
> mode", where you can set the internal state of the chip to some known
>
> configuration before you perform a test.
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