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"""requirements.py
This file is used by the SQLAlchemy 0.8 testing suite to mark various
optional behaviors as non-supported.
"""
from sqlalchemy.testing.requirements import SuiteRequirements
from sqlalchemy.testing import exclusions
class Requirements(SuiteRequirements):
@property
def on_update_cascade(self):
""""target database must support ON UPDATE..CASCADE behavior in
foreign keys."""
return exclusions.closed()
@property
def datetime_microseconds(self):
"""target dialect supports representation of Python
datetime.datetime() with microsecond objects."""
return exclusions.closed()
@property
def time_microseconds(self):
"""target dialect supports representation of Python
datetime.time() with microsecond objects."""
return exclusions.closed()
@property
def unbounded_varchar(self):
"""Target database must support VARCHAR with no length"""
return exclusions.closed()
#@property
#def offset(self):
# return exclusions.closed()
@property
def window_functions(self):
"""Target database must support window functions."""
return exclusions.open()
@property
def precision_numerics_enotation_small(self):
"""target backend supports Decimal() objects using E notation
to represent very small values."""
return exclusions.open()
@property
def precision_numerics_enotation_large(self):
"""target backend supports Decimal() objects using E notation
to represent very large values."""
return exclusions.closed()
@property
def precision_numerics_many_significant_digits(self):
"""target backend supports values with many digits on both sides,
such as 319438950232418390.273596, 87673.594069654243
"""
return exclusions.fails_if(lambda: True,
"Throws error SQL0604N, regarding Decimal(38, 12)"
)
@property
def precision_numerics_retains_significant_digits(self):
"""A precision numeric type will return empty significant digits,
i.e. a value such as 10.000 will come back in Decimal form with
the .000 maintained."""
return exclusions.open()
|
