def test_get_greatest_operative_mip_version_wrong_log_level_value(self):
class Source1(bt2._UserSourceComponent,
message_iterator_class=bt2._UserMessageIterator):
pass
descriptors = [bt2.ComponentDescriptor(Source1)]
with self.assertRaises(ValueError):
bt2.get_greatest_operative_mip_version(descriptors, 12345)
def test_get_greatest_operative_mip_version_wrong_descriptor_type(self):
class Source1(bt2._UserSourceComponent,
message_iterator_class=bt2._UserMessageIterator):
@classmethod
def _user_get_supported_mip_versions(cls, params, obj, log_level):
return [0, 1]
descriptors = [bt2.ComponentDescriptor(Source1), object()]
with self.assertRaises(TypeError):
bt2.get_greatest_operative_mip_version(descriptors)
def _get_greatest_operative_mip_version(self):
def append_comp_specs_descriptors(descriptors, comp_specs):
for comp_spec in comp_specs:
descriptors.append(
bt2.ComponentDescriptor(
comp_spec.component_class, comp_spec.params, comp_spec.obj
)
)
descriptors = []
append_comp_specs_descriptors(descriptors, self._src_comp_specs)
append_comp_specs_descriptors(descriptors, self._flt_comp_specs)
if self._stream_intersection_mode:
# we also need at least one `flt.utils.trimmer` component
comp_spec = ComponentSpec.from_named_plugin_and_component_class(
'utils', 'trimmer'
)
append_comp_specs_descriptors(descriptors, [comp_spec])
mip_version = bt2.get_greatest_operative_mip_version(descriptors)
if mip_version is None:
msg = 'failed to find an operative message interchange protocol version (components are not interoperable)'
raise RuntimeError(msg)
return mip_version
def test_get_greatest_operative_mip_version_no_match(self):
class Source1(bt2._UserSourceComponent,
message_iterator_class=bt2._UserMessageIterator):
@classmethod
def _user_get_supported_mip_versions(cls, params, obj, log_level):
return [0]
class Source2(bt2._UserSourceComponent,
message_iterator_class=bt2._UserMessageIterator):
@classmethod
def _user_get_supported_mip_versions(cls, params, obj, log_level):
return [1]
descriptors = [
bt2.ComponentDescriptor(Source1),
bt2.ComponentDescriptor(Source2),
]
version = bt2.get_greatest_operative_mip_version(descriptors)
self.assertIsNone(version)
def test_get_greatest_operative_mip_version_empty_descriptors(self):
with self.assertRaises(ValueError):
bt2.get_greatest_operative_mip_version([])
