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#!/usr/bin/env python
# GF Python bindings
# Jordi Saludes 2010
#
import gf
import unittest
samples = [
(['Odd', ['Number', 89]],
{'eng': "is 89 odd",
'spa': "89 es impar"}),
(['Prime', ['Number', 21]],
{'eng': "is 21 prime",
'spa': "21 es primo"})]
def lang2iso(l):
s = rmprefix(l)
assert s[:5]=="Query"
return s[5:].lower()
def exp2str(e):
def e2s(e,n):
if type(e) == type([2]):
f = e[0]
sr = ' '.join([e2s(arg,n+1) for arg in e[1:]])
ret =f + ' ' + sr
return n and '('+ret+')' or ret
elif type(e) == type('2'):
return e
elif type(e) == type(2):
return `e`
else:
raise ValueError, "Do not know how to render " + `e`
return e2s(e,0)
import re
hexre = re.compile('0x[0-9a-f]+:[ ]*')
def rmprefix(obj):
return `obj`
# s = `obj`
# m = hexre.match(s)
# return m and s[m.end(0):]
class TestPgfInfo(unittest.TestCase):
def pgf(self, path=None):
path = path or self.path
return gf.read_pgf(path)
def setUp(self):
self.path = 'Query.pgf'
def test_readPgf(self):
pgf = self.pgf()
self.assertNotEqual(pgf,None)
def test_readNonExistent(self):
nopath = 'x' + self.path
self.assertRaises(IOError, self.pgf, nopath)
def test_startcat(self):
pgf = self.pgf()
cat = pgf.startcat()
self.assertEqual(rmprefix(cat),'Question')
def test_categories(self):
pgf = self.pgf()
cats = [`c` for c in pgf.categories()]
self.failUnless('Float' in cats)
self.failUnless('Int' in cats)
self.failUnless('String' in cats)
def test_createLanguage(self):
pgf = self.pgf()
for lang in 'QueryEng QuerySpa'.split():
l = gf.read_language(lang)
self.assertEqual(rmprefix(l),lang)
def test_functions(self):
pgf = self.pgf()
self.assertTrue('Even' in [`f` for f in pgf.functions()])
def test_function_types(self):
pgf = self.pgf()
gftypes = dict((`f`,`pgf.fun_type(f)`) for f in pgf.functions())
for p in "Prime : Object -> Question; Yes : Answer".split(';'):
lhs,rhs = [s.strip() for s in p.split(':')]
self.assertEqual(gftypes[lhs],rhs)
class TestParsing(unittest.TestCase):
def setUp(self):
self.lexed = samples
self.lang = 'QueryEng'
self.pgf = "Query.pgf"
def test_parse(self):
pgf = gf.read_pgf(self.pgf)
l = gf.read_language(self.lang)
for abs,cnc in self.lexed:
rabs = exp2str(abs)
ps = pgf.parse(l, cnc['eng'])
self.failUnless(ps)
pt = rmprefix(ps[0])
self.assertEqual(pt,rabs)
class TestLinearize(unittest.TestCase):
def setUp(self):
self.samples = samples
self.pgf = gf.read_pgf('Query.pgf')
self.lang = gf.read_language('QueryEng')
def test_Linearize(self):
l = self.lang
for abs,cnc in self.samples:
ts = self.pgf.parse(l, cnc['eng'])
self.assertEqual(cnc['eng'],self.pgf.linearize(l,ts[0]))
class TestTranslate(unittest.TestCase):
def setUp(self):
self.samples = samples
self.pgf = gf.read_pgf('Query.pgf')
self.langs = [(lang2iso(l),l) for l in self.pgf.languages()]
def test_translate(self):
for abs,cnc in self.samples:
for i,l in self.langs:
for j,m in self.langs:
if i==j: continue
parsed = self.pgf.parse(l, cnc[i])
assert len(parsed) == 1
lin = self.pgf.linearize(m,parsed[0])
self.assertEqual(lin,cnc[j])
class TestUnapplyExpr(unittest.TestCase):
def setUp(self):
self.samples = samples
self.pgf = gf.read_pgf('Query.pgf')
self.langs = dict([(lang2iso(l),l) for l in self.pgf.languages()])
def deep_unapp(self,exp):
exp = exp.unapply()
if type(exp) == type([2]):
f = exp[0]
return [`f`] + map(self.deep_unapp,exp[1:])
else:
return exp
def test_unapply(self):
lg = 'eng'
lang = self.langs[lg]
for abs,cnc in self.samples:
parsed = self.pgf.parse(lang, cnc[lg])
uparsed = self.deep_unapp(parsed[0])
self.assertEqual(abs,uparsed)
def test_infer(self):
lg = 'eng'
lang = self.langs[lg]
cnc = self.samples[0][1]
parsed = self.pgf.parse(lang, cnc[lg])
exp = parsed[0]
for t in 'Question Object Int'.split():
self.assertEqual(`exp.infer(self.pgf)`, t)
uexp = exp.unapply()
if type(uexp) != type(2) and type(uexp) != type('2'):
exp = uexp[1]
class TestComplete(unittest.TestCase):
def setUp(self):
self.lexed = samples
self.pgf = gf.read_pgf('Query.pgf')
self.langs = dict([(lang2iso(l),l) for l in self.pgf.languages()])
def test_complete(self):
for (_,d) in self.lexed:
for l,text in d.items():
lang = self.langs[l]
for k in range(len(text)):
if text[k].isdigit() or text[k-1].isdigit(): # No completion for integer literals
continue
comps = self.pgf.complete(lang,text[:k])
self.assertNotEqual(comps, [],
msg="while completing '%s^%s'" % (text[:k],text[k:]))
self.assertTrue(any(w in text for w in comps),
msg="None of %s is in '%s'" % (comps,text))
if __name__ == '__main__':
unittest.main()
|
