test: add the `deps` fixture

[Saviq]

bors try

[bors[bot]]

try

Build succeeded:

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[Saviq]

@wmww so to run with only one server, you'd just go:

@pytest.mark.parameterize('server',
  (apps.snap('confined-shell', channel='edge'),)
)
@pytest.mark.parameterize('app',
  (apps.gedit(),)
)
def test_one_server(server, app):
  assert server == ('confined-shell',)
  assert app == ('gedit', '-s')

Or even simpler:

@pytest.mark.deps(snap='confined-shell', channel='edge')
@pytest.mark.parametrize('app',
  (apps.gedit(),)
)
def test_one_server(app):
  # assert server == ('confined-shell',)  # you don't get that, then
  assert app == ('gedit', '-s')

[bors[bot]]

Build succeeded:

• ProcessSnaps
• RunTests (self)