Python hypothesis.strategies.from_type() Examples

The following are 5 code examples of hypothesis.strategies.from_type(). You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may also want to check out all available functions/classes of the module hypothesis.strategies , or try the search function .
Example #1
Source File: conftest.py    From recruit with Apache License 2.0 5 votes vote down vote up 
def tick_classes(request):
    """
    Fixture for Tick based datetime offsets available for a time series.
    """
    return request.param

# ----------------------------------------------------------------
# Global setup for tests using Hypothesis


# Registering these strategies makes them globally available via st.from_type,
# which is use for offsets in tests/tseries/offsets/test_offsets_properties.py
Example #2
Source File: test-the-untestable.py    From escape-from-automanual-testing with GNU Affero General Public License v3.0 5 votes vote down vote up 
def test_mean_properties(data, type_, strat):
    strat = strat or st.from_type(type_)
    values = data.draw(st.lists(strat, min_size=1))
    result = mean(values)  # already testing no exceptions!
    # TODO: property assertions, e.g. bounds on result, etc.
    if type_ is Fraction:
        assert min(values) <= result <= max(values)
    # What constraints make sense for an integer mean?

    # TODO: metamorphic test assertions.  For example, how should result
    # change if you add the mean to values?  a number above or below result?
    # Remove some elements from values?
Example #3
Source File: conftest.py    From predictive-maintenance-using-machine-learning with Apache License 2.0 5 votes vote down vote up 
def tick_classes(request):
    """
    Fixture for Tick based datetime offsets available for a time series.
    """
    return request.param

# ----------------------------------------------------------------
# Global setup for tests using Hypothesis


# Registering these strategies makes them globally available via st.from_type,
# which is use for offsets in tests/tseries/offsets/test_offsets_properties.py
Example #4
Source File: __init__.py    From MyGrad with MIT License 5 votes vote down vote up 
def everything_except(
    excluded_types: Union[type, Tuple[type, ...]]
) -> st.SearchStrategy[Any]:
    """Returns hypothesis strategy that generates values of any type other than
    those specified in ``excluded_types``."""
    return (
        st.from_type(type)
        .flatmap(st.from_type)
        .filter(lambda x: not isinstance(x, excluded_types))
    )
Example #5
Source File: conftest.py    From coffeegrindsize with MIT License 5 votes vote down vote up 
def tick_classes(request):
    """
    Fixture for Tick based datetime offsets available for a time series.
    """
    return request.param

# ----------------------------------------------------------------
# Global setup for tests using Hypothesis


# Registering these strategies makes them globally available via st.from_type,
# which is use for offsets in tests/tseries/offsets/test_offsets_properties.py