Fix test_exception_branch_exists

[a3626a]

Recently, I have ported a portion of nbgitpuller into Ruby On Rails compatible ruby version. Meanwhile, I have found that 'test_exception_branch_exists' doesn't test anything. Actually puller.gp.branch_exists("wrong") was not throwing any errors, and assert type(e) == ValueError was not called at all.

I refered test_exception_resolve_default_branch and test_git_lock, and introduced exception_raised variable and puller.gp.git_url = "" assignment.

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[yuvipanda]

Ah, thanks for looking into this!

Can you rework this to use https://docs.pytest.org/en/7.1.x/how-to/assert.html#assertions-about-expected-exceptions instead? That's the expected way to test for expected exceptions in pytest I think.

[a3626a]

Ah, thanks for looking into this!

Can you rework this to use https://docs.pytest.org/en/7.1.x/how-to/assert.html#assertions-about-expected-exceptions instead? That's the expected way to test for expected exceptions in pytest I think.

Of course, that is great. It is done.

[yuvipanda]

Thanks @a3626a. Looks like the test failures may be related?

[a3626a]

@yuvipanda

Thanks @a3626a. Looks like the test failures may be related?

It is really done!

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