def test_orErrorTie(self):
"""
When branches of L{OMetaBase._or} produce errors that tie for rightmost
position, they are merged.
"""
data = "foozle"
o = OMetaBase(data)
v, e = o._or([lambda: o.token("fog"),
lambda: o.token("foz"),
lambda: o.token("f")])
self.assertEqual(e[0], 2)
self.assertEqual(e[1], [expected("token", "fog")[0], expected("token", "foz")[0]])
def test_orErrorTie(self):
"""
When branches of L{OMetaBase._or} produce errors that tie for rightmost
position, they are merged.
"""
data = "foozle"
o = OMetaBase(data)
v, e = o._or([lambda: o.token("fog"),
lambda: o.token("foz"),
lambda: o.token("f")])
self.assertEqual(e[0], 2)
self.assertEqual(e[1], [expected("token", "fog")[0], expected("token", "foz")[0]])
def test_orFalseSuccess(self):
"""
When a failing branch of L{OMetaBase._or} gets further than a
succeeding one, its error is returned instead of the success branch's.
"""
data = "foozle"
o = OMetaBase(data)
v, e = o._or([lambda: o.token("fog"),
lambda: o.token("foozik"),
lambda: o.token("f")])
self.assertEqual(e[0], 4)
self.assertEqual(e[1], expected("token", "foozik"))
def test_orFalseSuccess(self):
"""
When a failing branch of L{OMetaBase._or} gets further than a
succeeding one, its error is returned instead of the success branch's.
"""
data = "foozle"
o = OMetaBase(data)
v, e = o._or([lambda: o.token("fog"),
lambda: o.token("foozik"),
lambda: o.token("f")])
self.assertEqual(e[0], 4)
self.assertEqual(e[1], expected("token", "foozik"))
def test_orSimpleFailure(self):
"""
When none of the alternatives passed to L{OMetaBase._or} succeed, the
one that got the furthest is returned.
"""
data = "foozle"
o = OMetaBase(data)
e = self.assertRaises(ParseError, o._or,
[lambda: o.token("fog"),
lambda: o.token("foozik"),
lambda: o.token("woozle")])
self.assertEqual(e[0], 4)
self.assertEqual(e[1], expected("token", "foozik"))
def test_orSimpleFailure(self):
"""
When none of the alternatives passed to L{OMetaBase._or} succeed, the
one that got the furthest is returned.
"""
data = "foozle"
o = OMetaBase(data)
e = self.assertRaises(ParseError, o._or, [
lambda: o.token("fog"), lambda: o.token("foozik"),
lambda: o.token("woozle")
])
self.assertEqual(e[0], 4)
self.assertEqual(e[1], expected("token", "foozik"))
def test_orSimpleFailure(self):
"""
When none of the alternatives passed to L{OMetaBase._or} succeed, the
one that got the furthest is returned.
"""
data = "foozle"
o = OMetaBase(data)
try:
o._or([lambda: o.token("fog"),
lambda: o.token("foozik"),
lambda: o.token("woozle")])
except _MaybeParseError as e:
self.assertEqual(e[0], 4)
self.assertEqual(e[1], expected("token", "foozik"))
else:
self.fail('_MaybeParseError not raised')
def test_orSimpleFailure(self):
"""
When none of the alternatives passed to L{OMetaBase._or} succeed, the
one that got the furthest is returned.
"""
data = "foozle"
o = OMetaBase(data)
try:
o._or([lambda: o.token("fog"),
lambda: o.token("foozik"),
lambda: o.token("woozle")])
except _MaybeParseError as e:
self.assertEqual(e[0], 4)
self.assertEqual(e[1], expected("token", "foozik"))
else:
self.fail('_MaybeParseError not raised')
