def test_coveragedata(coverage_fileobj):
import coverage
from covimerage.coveragepy import (CoverageData, CoveragePyData,
CoverageWrapperException)
with pytest.raises(TypeError) as excinfo:
CoverageData(data_file='foo', cov_data=CoveragePyData())
assert excinfo.value.args == (
'data and data_file are mutually exclusive.', )
data = CoverageData()
try:
from coverage.data import CoverageJsonData
except ImportError:
assert isinstance(data.cov_data, coverage.data.CoverageData)
else:
assert isinstance(data.cov_data, CoverageJsonData)
with pytest.raises(TypeError) as excinfo:
CoverageData(cov_data='foo')
try:
from coverage.data import CoverageJsonData
except ImportError:
assert excinfo.value.args == (
'data needs to be of type coverage.data.CoverageData', )
else:
assert excinfo.value.args == (
'data needs to be of type coverage.data.CoverageJsonData', )
with pytest.raises(CoverageWrapperException) as excinfo:
CoverageData(data_file='/does/not/exist')
assert excinfo.value.args == (
'Coverage could not read data_file: /does/not/exist', )
assert isinstance(excinfo.value.orig_exc, coverage.misc.CoverageException)
f = StringIO()
with pytest.raises(CoverageWrapperException) as excinfo:
CoverageData(data_file=f)
e = excinfo.value
assert isinstance(e.orig_exc, coverage.misc.CoverageException)
assert e.message == 'Coverage could not read data_file: %s' % f
assert e.format_message(
) == "%s (CoverageException: Doesn't seem to be a coverage.py data file)" % (
e.message, )
assert str(e) == e.format_message()
assert repr(e) == 'CoverageWrapperException(message=%r, orig_exc=%r)' % (
e.message, e.orig_exc)
cov_data = CoverageData(data_file=coverage_fileobj)
with pytest.raises(attr.exceptions.FrozenInstanceError):
cov_data.data = 'foo'
assert cov_data.lines == {
'/test_plugin/conditional_function.vim':
[3, 8, 9, 11, 13, 14, 15, 17, 23]
}
def test_coveragedata_empty(covdata_empty):
from covimerage.coveragepy import CoverageData
f = StringIO()
data = CoverageData()
data.cov_data.write_fileobj(f)
f.seek(0)
assert f.read() == covdata_empty
def test_coveragedata_empty(covdata_empty):
from covimerage.coveragepy import CoverageData
f = StringIO()
data = CoverageData()
try:
write_fileobj = data.cov_data.write_fileobj
except AttributeError:
# coveragepy 5
write_fileobj = data.cov_data._write_fileobj
write_fileobj(f)
f.seek(0)
assert f.read() == covdata_empty
def test_coveragewrapper(coverage_fileobj, devnull):
import coverage
from covimerage.coveragepy import (CoverageData, CoverageWrapper,
CoverageWrapperException)
cov_data = CoverageWrapper()
assert cov_data.lines == {}
assert isinstance(cov_data.data, CoverageData)
cov_data = CoverageWrapper(data=coverage.data.CoverageData())
assert cov_data.lines == {}
assert isinstance(cov_data.data, CoverageData)
with pytest.raises(TypeError):
CoverageWrapper(data_file='foo', data='bar')
with pytest.raises(TypeError):
CoverageWrapper(data_file='foo', data=CoverageData())
cov = CoverageWrapper(data_file=coverage_fileobj)
with pytest.raises(attr.exceptions.FrozenInstanceError):
cov.data = 'foo'
assert cov.lines == {
'/test_plugin/conditional_function.vim':
[3, 8, 9, 11, 13, 14, 15, 17, 23]
}
assert isinstance(cov._cov_obj, coverage.control.Coverage)
assert cov._cov_obj.data is cov.data.cov_data
with pytest.raises(CoverageWrapperException) as excinfo:
CoverageWrapper(data_file=devnull.name)
assert excinfo.value.args == (
'Coverage could not read data_file: /dev/null', )
f = StringIO()
with pytest.raises(CoverageWrapperException) as excinfo:
CoverageWrapper(data_file=f)
e = excinfo.value
assert isinstance(e.orig_exc, coverage.misc.CoverageException)
assert e.message == 'Coverage could not read data_file: %s' % f
assert e.format_message(
) == "%s (CoverageException: Doesn't seem to be a coverage.py data file)" % (
e.message, )
assert str(e) == e.format_message()
assert repr(e) == 'CoverageWrapperException(message=%r, orig_exc=%r)' % (
e.message, e.orig_exc)
def test_coveragewrapper_accepts_data():
from covimerage.coveragepy import CoverageData, CoverageWrapper
data = CoverageData()
cov = CoverageWrapper(data=data)
assert cov.data is data