============================= test session starts ==============================
platform linux2 -- Python 2.7.12, pytest-3.0.5, py-1.4.31, pluggy-0.4.0 -- None
cachedir: .cache
rootdir: /tmp/bukzor, inifile: 
collecting ... collected 30 items

tests/cover/test_float_nastiness.py::test_floats_are_in_range[9.97920154767e+291-1.79769313486e+308] PASSED
tests/cover/test_float_nastiness.py::test_floats_are_in_range[-1.79769313486e+308-1.79769313486e+308] PASSED
tests/cover/test_float_nastiness.py::test_can_generate_both_zeros[-1] PASSED
tests/cover/test_float_nastiness.py::test_can_generate_both_zeros[1] PASSED
tests/cover/test_float_nastiness.py::test_can_generate_both_zeros_when_in_interval[-1--1.0-1.0] PASSED
tests/cover/test_float_nastiness.py::test_can_generate_both_zeros_when_in_interval[-1--0.0-1.0] PASSED
tests/cover/test_float_nastiness.py::test_can_generate_both_zeros_when_in_interval[-1--1.0-0.0] PASSED
tests/cover/test_float_nastiness.py::test_can_generate_both_zeros_when_in_interval[-1--2.22507385851e-308-2.22507385851e-308] PASSED
tests/cover/test_float_nastiness.py::test_can_generate_both_zeros_when_in_interval[1--1.0-1.0] PASSED
tests/cover/test_float_nastiness.py::test_can_generate_both_zeros_when_in_interval[1--0.0-1.0] PASSED
tests/cover/test_float_nastiness.py::test_can_generate_both_zeros_when_in_interval[1--1.0-0.0] PASSED
tests/cover/test_float_nastiness.py::test_can_generate_both_zeros_when_in_interval[1--2.22507385851e-308-2.22507385851e-308] PASSED
tests/cover/test_float_nastiness.py::test_does_not_generate_negative_if_right_boundary_is_positive PASSED
tests/cover/test_float_nastiness.py::test_does_not_generate_positive_if_right_boundary_is_negative PASSED
tests/cover/test_float_nastiness.py::test_can_generate_interval_endpoints[0.0-1.0] PASSED
tests/cover/test_float_nastiness.py::test_can_generate_interval_endpoints[-1.0-0.0] PASSED
tests/cover/test_float_nastiness.py::test_can_generate_interval_endpoints[-2.22507385851e-308-2.22507385851e-308] PASSED
tests/cover/test_float_nastiness.py::test_half_bounded_generates_endpoint FAILED
tests/cover/test_float_nastiness.py::test_half_bounded_generates_zero PASSED
tests/cover/test_float_nastiness.py::test_half_bounded_respects_sign_of_upper_bound PASSED
tests/cover/test_float_nastiness.py::test_half_bounded_respects_sign_of_lower_bound PASSED
tests/cover/test_float_nastiness.py::test_filter_nan PASSED
tests/cover/test_float_nastiness.py::test_filter_infinity PASSED
tests/cover/test_float_nastiness.py::test_can_guard_against_draws_of_nan PASSED
tests/cover/test_float_nastiness.py::test_very_narrow_interval PASSED
tests/cover/test_float_nastiness.py::test_up_means_greater PASSED
tests/cover/test_float_nastiness.py::test_down_means_lesser PASSED
tests/cover/test_float_nastiness.py::test_updown_roundtrip PASSED
tests/cover/test_float_nastiness.py::test_floats_in_tiny_interval_within_bounds PASSED
tests/cover/test_float_nastiness.py::test_float_free_interval_is_invalid PASSED
=========================== short test summary info ============================
FAIL tests/cover/test_float_nastiness.py::test_half_bounded_generates_endpoint

=========================== slowest 5 test durations ===========================
4.63s call     tests/cover/test_float_nastiness.py::test_half_bounded_generates_endpoint
0.94s call     tests/cover/test_float_nastiness.py::test_floats_in_tiny_interval_within_bounds
0.31s call     tests/cover/test_float_nastiness.py::test_floats_are_in_range[9.97920154767e+291-1.79769313486e+308]
0.30s call     tests/cover/test_float_nastiness.py::test_up_means_greater
0.27s call     tests/cover/test_float_nastiness.py::test_filter_infinity
=================================== FAILURES ===================================
_____________________ test_half_bounded_generates_endpoint _____________________
tests/cover/test_float_nastiness.py:93: in test_half_bounded_generates_endpoint
    find_any(st.floats(min_value=-1.0), lambda x: x == -1.0)
tests/common/debug.py:91: in find_any
    random=random,
src/hypothesis/core.py:1181: in find
    raise NoSuchExample(get_pretty_function_description(condition))
E   NoSuchExample: No examples found of condition lambda x: x == -1.0
===================== 1 failed, 29 passed in 10.76 seconds =====================