Since the CLI parsing sets global variables which affect how your code
operates, you can just set those variables directly in your test functions.
func TestWithDots(t *testing.T) {
noDotsFlag = false
...
}
func TestWithNoDots(t *testing.T) {
noDotsFlag = true
...
}
On Saturday, 6 May 2023 at 21:50:16 UTC+1 Robert Solomon wrote:
> thank you
>
> On Saturday, May 6, 2023 at 4:32:57 PM UTC-4 Jason Phillips wrote:
>
>> The testing package documentation mentions this case explicitly:
>> https://pkg.go.dev/testing#hdr-Main
>>
>> In short, you can define a main function (called TestMain) for your test
>> package and call flag.Parse from there.
>>
>> On Saturday, May 6, 2023 at 4:03:59 PM UTC-4 Robert Solomon wrote:
>>
>>> A related issue:
>>> Now that I can run go test and it's running, how do I define the flag.
>>> Currently, I define it in main(), and also the flag.Parse() is in main().
>>> But main() is not run in go test, so I tried putting flag.BoolVar() and
>>> flag.Parse() in an init() function, but that doesn''t work either.
>>>
>>> How do I test the operations of the flag package when running go test?
>>>
>>>
>>>
>>> On Saturday, May 6, 2023 at 3:45:10 PM UTC-4 Robert Solomon wrote:
>>>
>>>> Looks like I didn't copy everything I have to the playground. But I do
>>>> have the correct imports and the top statement, package main.
>>>>
>>>> Thank you for answering, that's working.
>>>>
>>>> --rob solomon
>>>>
>>>>
>>>> On Saturday, May 6, 2023 at 11:24:11 AM UTC-4 Brian Candler wrote:
>>>>
>>>>> Your code is incomplete (it's missing all the imports), and "go test"
>>>>> doesn't run your main() function anyway, so it's not going to parse the
>>>>> flags.
>>>>>
>>>>> But otherwise I think it would be something like this: (single dash,
>>>>> -args not --args)
>>>>>
>>>>> go test . -v -args - -dots
>>>>>
>>>>> https://go.dev/play/p/HFJBO1j54iE
>>>>>
>>>>> On Saturday, 6 May 2023 at 14:02:35 UTC+1 Robert Solomon wrote:
>>>>>
>>>>>>
>>>>>> I have a routine that I want to test, that I have to pass a flag into
>>>>>> this test. This is on Win10 using Go 1.20.4. This code is here:
>>>>>> https://go.dev/play/p/p-YeGDk1KaM
>>>>>>
>>>>>> I want to pass a flag I call dots into the test code for this
>>>>>> function. I tried from within the correct directory
>>>>>>
>>>>>> go test --args -dots
>>>>>> or
>>>>>> go test . --args -dots
>>>>>>
>>>>>> Or from the top of my source tree where the go.mod file is :
>>>>>>
>>>>>> go test .\detox --args -dots
>>>>>> go test .\detox\... --args -dots
>>>>>>
>>>>>> I get an error message saying:
>>>>>>
>>>>>> flag provided but not defined: -dots.
>>>>>>
>>>>>> But that flag does show up when I run the program using the -h flag,
>>>>>> and it works when not in go test mode.
>>>>>> The full pgm is in the link above.
>>>>>>
>>>>>> What am I missing?
>>>>>>
>>>>>> --rob solomon
>>>>>>
>>>>>> PS: a stackoverflow question that's similar to this, from 2014, does
>>>>>> not work for me.
>>>>>>
>>>>>>
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