How to use istestfunction method in pytest-play

Best Python code snippet using pytest-play_python

classes.py

Source:classes.py

...8# NOTE: these are defined here for reuse by both pytest's own machinery and our9# internal bits.10def istestclass(name):11    return not name.startswith("_")12def istestfunction(name):13    return not (name.startswith("_") or name in ("setup", "teardown"))14# All other classes in here currently inherit from PyCollector, and it is what15# defines the default istestfunction/istestclass, so makes sense to inherit16# from it for our mixin. (PyobjMixin, another commonly found class, offers17# nothing of interest to us however.)18class RelaxedMixin(PyCollector):19    """20    A mixin applying collection rules to both modules and inner/nested classes.21    """22    # TODO:23    # - worth calling super() in these? Difficult to know what to do with it;24    # it would say "no" to lots of stuff we want to say "yes" to.25    # - are there other tests to apply to 'obj' in a vacuum? so far only thing26    # we test 'obj' for is its membership in a module, which must happen inside27    # SpecModule's override.28    def istestclass(self, obj, name):29        return istestclass(name)30    def istestfunction(self, obj, name):31        return istestfunction(name)32class SpecModule(RelaxedMixin, Module):33    def _is_test_obj(self, test_func, obj, name):34        # First run our super() test, which should be RelaxedMixin's.35        good_name = getattr(super(SpecModule, self), test_func)(obj, name)36        # If RelaxedMixin said no, we can't really say yes, as the name itself37        # was bad - private, other non test name like setup(), etc38        if not good_name:39            return False40        # Here, we dig further based on our own wrapped module obj, by41        # rejecting anything not defined locally.42        if inspect.getmodule(obj) is not self.obj:43            return False44        # No other complaints -> it's probably good45        return True46    def istestfunction(self, obj, name):47        return self._is_test_obj("istestfunction", obj, name)48    def istestclass(self, obj, name):49        return self._is_test_obj("istestclass", obj, name)50    def collect(self):51        # Get whatever our parent picked up as valid test items (given our52        # relaxed name constraints above). It'll be nearly all module contents.53        items = super(SpecModule, self).collect()54        collected = []55        for item in items:56            # Replace Class objects with recursive SpecInstances (via57            # SpecClasses, so we don't lose some bits of parent Class).58            # TODO: this may be way more than is necessary; possible we can59            # recurse & unpack here, as long as we preserve parent/child60            # relationships correctly?61            # NOTE: we could explicitly skip unittest objects here (we'd want62            # them to be handled by pytest's own unittest support) but since63            # those are almost always in test_prefixed_filenames anyways...meh64            if isinstance(item, Class):65                item = SpecClass(item.name, item.parent)66            collected.append(item)67        return collected68# NOTE: no need to inherit from RelaxedMixin here as it doesn't do much by69# its lonesome70class SpecClass(Class):71    def collect(self):72        items = super(SpecClass, self).collect()73        collected = []74        # Replace Instance objects with SpecInstance objects that know how to75        # recurse into inner classes.76        # TODO: is this ever not a one-item list? Meh.77        for item in items:78            item = SpecInstance(name=item.name, parent=item.parent)79            collected.append(item)80        return collected81class SpecInstance(RelaxedMixin, Instance):82    def _getobj(self):83        # Regular object-making first84        obj = super(SpecInstance, self)._getobj()85        # Then decorate it with our parent's extra attributes, allowing nested86        # test classes to appear as an aggregate of parents' "scopes".87        # NOTE: need parent.parent due to instance->class hierarchy88        # NOTE: of course, skipping if we've gone out the top into a module etc89        if (90            not hasattr(self, "parent")91            or not hasattr(self.parent, "parent")92            or not isinstance(self.parent.parent, SpecInstance)93        ):94            return obj95        parent_obj = self.parent.parent.obj96        # Obtain parent attributes, etc not found on our obj (serves as both a97        # useful identifier of "stuff added to an outer class" and a way of98        # ensuring that we can override such attrs), and set them on obj99        delta = set(dir(parent_obj)).difference(set(dir(obj)))100        for name in delta:101            value = getattr(parent_obj, name)102            # Pytest's pytestmark attributes always get skipped, we don't want103            # to spread that around where it's not wanted. (Besides, it can104            # cause a lot of collection level warnings.)105            if name == "pytestmark":106                continue107            # Classes get skipped; they'd always just be other 'inner' classes108            # that we don't want to copy elsewhere.109            if isinstance(value, six.class_types):110                continue111            # Functions (methods) may get skipped, or not, depending:112            if isinstance(value, types.MethodType):113                # If they look like tests, they get skipped; don't want to copy114                # tests around!115                if istestfunction(name):116                    continue117                # Non-test == they're probably lifecycle methods118                # (setup/teardown) or helpers (_do_thing). Rebind them to the119                # target instance, otherwise the 'self' in the setup/helper is120                # not the same 'self' as that in the actual test method it runs121                # around or within!122                # TODO: arguably, all setup or helper methods should become123                # autouse class fixtures (see e.g. pytest docs under 'xunit124                # setup on steroids')125                func = six.get_method_function(value)126                setattr(obj, name, six.create_bound_method(func, obj))127            # Anything else should be some data-type attribute, which is copied128            # verbatim / by-value.129            else:...

test_python_function_task.py

Source:test_python_function_task.py

...14    assert isnested(inner_foo) is True15    # Uses tasks.tasks method16    with pytest.raises(ValueError):17        tasks.tasks()18def test_istestfunction():19    assert istestfunction(foo) is True20    assert istestfunction(isnested) is False21    assert istestfunction(tasks.tasks) is False22def test_container_image_conversion():23    default_img = Image(name="default", fqn="xyz.com/abc", tag="tag1")24    other_img = Image(name="other", fqn="xyz.com/other", tag="tag-other")25    cfg = ImageConfig(default_image=default_img, images=[default_img, other_img])26    assert get_registerable_container_image(None, cfg) == "xyz.com/abc:tag1"27    assert get_registerable_container_image("", cfg) == "xyz.com/abc:tag1"28    assert get_registerable_container_image("abc", cfg) == "abc"29    assert get_registerable_container_image("abc:latest", cfg) == "abc:latest"30    assert get_registerable_container_image("abc:{{.image.default.version}}", cfg) == "abc:tag1"31    assert (32        get_registerable_container_image("{{.image.default.fqn}}:{{.image.default.version}}", cfg) == "xyz.com/abc:tag1"33    )34    assert (35        get_registerable_container_image("{{.image.other.fqn}}:{{.image.other.version}}", cfg)...

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