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add tests for #1642, refs #794, #796

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This commit is contained in:
Dane Springmeyer 2012-12-11 19:39:06 -08:00
parent 9abcda54c7
commit d716daa4d1
1 changed files with 73 additions and 0 deletions
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73
tests/python_tests/filter_test.py
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@ -192,5 +192,78 @@ def test_string_matching_on_precision():
expr = mapnik.Expression("[num].match('.*(^0|00)$')")
eq_(expr.evaluate(f),True)
def test_creation_of_null_value():
context = mapnik.Context()
context.push('nv')
f = mapnik.Feature(context,0)
f["nv"] = None
eq_(f["nv"],None)
eq_(f["nv"] is None,True)
# test boolean
f["nv"] = 0
eq_(f["nv"],0)
eq_(f["nv"] is not None,True)
def test_creation_of_bool():
context = mapnik.Context()
context.push('bool')
f = mapnik.Feature(context,0)
f["bool"] = True
eq_(f["bool"],True)
eq_(isinstance(f["bool"],bool),True)
f["bool"] = False
eq_(f["bool"],False)
eq_(isinstance(f["bool"],bool),True)
# test NoneType
f["bool"] = None
eq_(f["bool"],None)
eq_(isinstance(f["bool"],bool),False)
# test integer
f["bool"] = 0
eq_(f["bool"],0)
# ugh, boost_python's built into converter does not work right
#eq_(isinstance(f["bool"],bool),False)
null_equality = [
['hello',False,unicode],
[0,False,int],
[0.0,False,float],
[False,False,bool],
[None,True,None]
]
def test_expressions_with_null_equality():
for eq in null_equality:
context = mapnik.Context()
f = mapnik.Feature(context,0)
f["prop"] = eq[0]
eq_(f["prop"],eq[0])
if eq[0] is None:
eq_(f["prop"] is None, True)
else:
eq_(isinstance(f['prop'],eq[2]),True,'%s is not an instance of %s' % (f['prop'],eq[2]))
expr = mapnik.Expression("[prop] = null")
eq_(expr.evaluate(f),eq[1])
expr = mapnik.Expression("[prop] is null")
eq_(expr.evaluate(f),eq[1])
def test_expressions_with_null_equality():
for eq in null_equality:
context = mapnik.Context()
f = mapnik.Feature(context,0)
f["prop"] = eq[0]
eq_(f["prop"],eq[0])
if eq[0] is None:
eq_(f["prop"] is None, True)
else:
eq_(isinstance(f['prop'],eq[2]),True,'%s is not an instance of %s' % (f['prop'],eq[2]))
# TODO - support `is not` syntax:
# https://github.com/mapnik/mapnik/issues/796
expr = mapnik.Expression("not [prop] is null")
eq_(expr.evaluate(f),not eq[1])
# https://github.com/mapnik/mapnik/issues/1642
expr = mapnik.Expression("[prop] != null")
eq_(expr.evaluate(f),not eq[1])
if __name__ == "__main__":
[eval(run)() for run in dir() if 'test_' in run]