def test_evaluate_condition(self):
parser = QueryLanguage()
#------------------------------------------------------------------------------------------------------
# Set up the search strings for different queries:
# These include main query, a list of or queries and a list of and queries
#------------------------------------------------------------------------------------------------------
field = 'voltage'
instrument = 'instrument'
#------------------------------------------------------------------------------------------------------
# main query
#------------------------------------------------------------------------------------------------------
lower_bound = 5
upper_bound = 10
search_string1 = "SEARCH '%s' VALUES FROM %s TO %s FROM '%s'"\
% (field, lower_bound, upper_bound, instrument)
#------------------------------------------------------------------------------------------------------
# or queries
#------------------------------------------------------------------------------------------------------
value = 15
search_string2 = "or search '%s' is '%s' from '%s'" % (field, value, instrument)
value = 17
search_string3 = "or search '%s' is '%s' from '%s'" % (field, value, instrument)
lower_bound = 20
upper_bound = 30
search_string4 = "or SEARCH '%s' VALUES FROM %s TO %s FROM '%s'"\
% (field, lower_bound, upper_bound, instrument)
#------------------------------------------------------------------------------------------------------
# and queries
#------------------------------------------------------------------------------------------------------
lower_bound = 5
upper_bound = 6
search_string5 = "and SEARCH '%s' VALUES FROM %s TO %s FROM '%s'"\
% (field, lower_bound, upper_bound, instrument)
lower_bound = 6
upper_bound = 7
search_string6 = "and SEARCH '%s' VALUES FROM %s TO %s FROM '%s'"\
% (field, lower_bound, upper_bound, instrument)
#------------------------------------------------------------------------------------------------------
# Construct queries by parsing different search strings and test the evaluate_condition()
# for each such complex query
#------------------------------------------------------------------------------------------------------
search_string = search_string1+search_string2+search_string3+search_string4+search_string5+search_string6
query = parser.parse(search_string)
# the main query as well as the 'and' queries pass for this case
event = ExampleDetectableEvent('TestEvent', voltage=6)
self.assertTrue(QueryLanguage.evaluate_condition(event, query))
# check true conditions. If any one of the 'or' conditions passes, evaluate_condition()
# will return True
event = ExampleDetectableEvent('TestEvent', voltage=15)
self.assertTrue(QueryLanguage.evaluate_condition(event, query))
event = ExampleDetectableEvent('TestEvent', voltage=17)
self.assertTrue(QueryLanguage.evaluate_condition(event, query))
event = ExampleDetectableEvent('TestEvent', voltage=25)
self.assertTrue(QueryLanguage.evaluate_condition(event, query))
# check fail conditions arising from the 'and' condition (happens if any one of the 'and' conditions fail)
# note: the 'and' queries are attached to the main query
event = ExampleDetectableEvent('TestEvent', voltage=5)
self.assertFalse(QueryLanguage.evaluate_condition(event, query))
event = ExampleDetectableEvent('TestEvent', voltage=7)
self.assertFalse(QueryLanguage.evaluate_condition(event, query))
event = ExampleDetectableEvent('TestEvent', voltage=9)
self.assertFalse(QueryLanguage.evaluate_condition(event, query))
