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import test_appliance, sys, StringIO
from yaml import *
import yaml
class TestEmitter(test_appliance.TestAppliance):
def _testEmitterOnData(self, test_name, canonical_filename, data_filename):
self._testEmitter(test_name, data_filename)
def _testEmitterOnCanonicalNormally(self, test_name, canonical_filename):
self._testEmitter(test_name, canonical_filename, False)
def _testEmitterOnCanonicalCanonically(self, test_name, canonical_filename):
self._testEmitter(test_name, canonical_filename, True)
def _testEmitter(self, test_name, filename, canonical=None):
events = list(parse(file(filename, 'rb')))
#self._dump(filename, events, canonical)
stream = StringIO.StringIO()
emit(events, stream, canonical=canonical)
data = stream.getvalue()
new_events = list(parse(data))
for event, new_event in zip(events, new_events):
self.failUnlessEqual(event.__class__, new_event.__class__)
if isinstance(event, NodeEvent):
self.failUnlessEqual(event.anchor, new_event.anchor)
if isinstance(event, CollectionStartEvent):
self.failUnlessEqual(event.tag, new_event.tag)
if isinstance(event, ScalarEvent):
#self.failUnlessEqual(event.implicit, new_event.implicit)
if True not in event.implicit+new_event.implicit:
self.failUnlessEqual(event.tag, new_event.tag)
self.failUnlessEqual(event.value, new_event.value)
def _testEmitterStyles(self, test_name, canonical_filename, data_filename):
for filename in [canonical_filename, data_filename]:
events = list(parse(file(filename, 'rb')))
for flow_style in [False, True]:
for style in ['|', '>', '"', '\'', '']:
styled_events = []
for event in events:
if isinstance(event, ScalarEvent):
event = ScalarEvent(event.anchor, event.tag,
event.implicit, event.value, style=style)
elif isinstance(event, SequenceStartEvent):
event = SequenceStartEvent(event.anchor, event.tag,
event.implicit, flow_style=flow_style)
elif isinstance(event, MappingStartEvent):
event = MappingStartEvent(event.anchor, event.tag,
event.implicit, flow_style=flow_style)
styled_events.append(event)
stream = StringIO.StringIO()
emit(styled_events, stream)
data = stream.getvalue()
#print data
new_events = list(parse(data))
for event, new_event in zip(events, new_events):
self.failUnlessEqual(event.__class__, new_event.__class__)
if isinstance(event, NodeEvent):
self.failUnlessEqual(event.anchor, new_event.anchor)
if isinstance(event, CollectionStartEvent):
self.failUnlessEqual(event.tag, new_event.tag)
if isinstance(event, ScalarEvent):
#self.failUnlessEqual(event.implicit, new_event.implicit)
if True not in event.implicit+new_event.implicit:
self.failUnlessEqual(event.tag, new_event.tag)
self.failUnlessEqual(event.value, new_event.value)
def _dump(self, filename, events, canonical):
print "="*30
print "ORIGINAL DOCUMENT:"
print file(filename, 'rb').read()
print '-'*30
print "EMITTED DOCUMENT:"
emit(events, sys.stdout, canonical=canonical)
TestEmitter.add_tests('testEmitterOnData', '.canonical', '.data')
TestEmitter.add_tests('testEmitterOnCanonicalNormally', '.canonical')
TestEmitter.add_tests('testEmitterOnCanonicalCanonically', '.canonical')
TestEmitter.add_tests('testEmitterStyles', '.canonical', '.data')
class EventsLoader(Loader):
def construct_event(self, node):
if isinstance(node, ScalarNode):
mapping = {}
else:
mapping = self.construct_mapping(node)
class_name = str(node.tag[1:])+'Event'
if class_name in ['AliasEvent', 'ScalarEvent', 'SequenceStartEvent', 'MappingStartEvent']:
mapping.setdefault('anchor', None)
if class_name in ['ScalarEvent', 'SequenceStartEvent', 'MappingStartEvent']:
mapping.setdefault('tag', None)
if class_name in ['SequenceStartEvent', 'MappingStartEvent']:
mapping.setdefault('implicit', True)
if class_name == 'ScalarEvent':
mapping.setdefault('implicit', (False, True))
mapping.setdefault('value', '')
value = getattr(yaml, class_name)(**mapping)
return value
EventsLoader.add_constructor(None, EventsLoader.construct_event)
class TestEmitterEvents(test_appliance.TestAppliance):
def _testEmitterEvents(self, test_name, events_filename):
events = list(load(file(events_filename, 'rb'), Loader=EventsLoader))
#self._dump(events_filename, events)
stream = StringIO.StringIO()
emit(events, stream)
data = stream.getvalue()
new_events = list(parse(data))
self.failUnlessEqual(len(events), len(new_events))
for event, new_event in zip(events, new_events):
self.failUnlessEqual(event.__class__, new_event.__class__)
if isinstance(event, NodeEvent):
self.failUnlessEqual(event.anchor, new_event.anchor)
if isinstance(event, CollectionStartEvent):
self.failUnlessEqual(event.tag, new_event.tag)
if isinstance(event, ScalarEvent):
self.failUnless(event.implicit == new_event.implicit
or event.tag == new_event.tag)
self.failUnlessEqual(event.value, new_event.value)
def _dump(self, events_filename, events):
print "="*30
print "EVENTS:"
print file(events_filename, 'rb').read()
print '-'*30
print "OUTPUT:"
emit(events, sys.stdout)
TestEmitterEvents.add_tests('testEmitterEvents', '.events')
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