def testTwoArgs(self):
m = Map()
m.put(KVPair('foo', NameRef('arg1')))
m.put(KVPair('bar', NameRef('arg2')))
f = Function(m, ['arg1', 'arg2'])
r = f.call(42, 'ackup')
self.assertEqual(r, {'foo': 42,'bar':'ackup'})
def setUp(self):
self.stream = ItemStream([
KVPair(42, 'foo'),
KVPair('foo', 17),
KVPair('umm', List()),
])
self.m = Map()
class TestPairStream(unittest.TestCase):
def setUp(self):
self.scope = Map()
self.scope['var'] = True
self.c = Conditional()
self.scope.put(self.c)
def testStream(self):
self.c.put_cond(
NameRef('var'),
ItemStream([ KVPair('ag', Map()), KVPair('ug', NameRef('var')) ])
)
self.assertEqual(self.scope['ag'], {})
self.assertEqual(self.scope['ug'], True)
def testUndefinedHasNoEffect(self):
self.scope.set_key('var', False)
self.assertEqual(self.scope.eval(), {'var':False}) # and nothing else
def setUp(self):
self.scope = Map()
self.scope['var'] = True
self.m = Map()
self.scope['bar'] = self.m
self.c = Conditional()
self.scope['cond'] = self.c
def testKVPairs(self):
self.let = Let()
self.let.names['var'] = 3
x = Map()
x['bar'] = NameRef('var')
self.let.put(KVPair('a', x))
x = List()
x.put(NameRef('var'))
self.let.put(KVPair('b', x))
root = Map()
root.put(self.let)
self.assertEqual(root.eval(), {'a':{'bar':3}, 'b':[3]})
def setUp(self):
# create functions
m0 = Map()
m0.put(KVPair('guk', NameRef('foo')))
self.f0 = Function(m0)
m1 = Map()
m1.put(KVPair('ack', NameRef('arg')))
self.f1 = Function(m1, ['arg'])
m2 = Map()
m2.put(KVPair('froz', NameRef('arg1')))
m2.put(KVPair('fuzz', NameRef('arg2')))
self.f2 = Function(m2, ['arg1', 'arg2'])
# put them in place
self.m = Map()
self.m.put(KVPair('foo', 42))
self.m.put(KVPair('f0',self.f0))
self.m.put(KVPair('f1',self.f1))
self.m.put(KVPair('f2',self.f2))
self.m.put(KVPair('call0', FunctionCall(NameRef('f0'))))
self.m.put(KVPair('call1', FunctionCall(NameRef('f1'), [13])))
self.m.put(KVPair('call2', FunctionCall(NameRef('f2'), ['ack', 17])))
class ItemStreamCompatibility(unittest.TestCase):
def setUp(self):
self.stream = ItemStream([
KVPair(42, 'foo'),
KVPair('foo', 17),
KVPair('umm', List()),
])
self.m = Map()
def testPut(self):
self.m.put(self.stream)
self.assertEqual(self.m[42], 'foo')
self.assertEqual(self.m['foo'], 17)
self.assertEqual(self.m['umm'], [])
def testBadPut(self):
self.stream.append(14) # non kvpair is an error
self.assertRaises(fern.errors.TypeError, self.m.put, self.stream)
def testReparentInStream(self):
self.m['var'] = 17
self.stream.put(KVPair('ref', NameRef('var')))
self.m.put(self.stream)
self.assertEqual(self.m['ref'], 17)
class TestIfItem(unittest.TestCase):
def setUp(self):
self.scope = Map()
self.scope['var'] = True
self.m = Map()
self.scope['bar'] = self.m
self.c = Conditional()
self.scope['cond'] = self.c
def testOneCond(self):
self.c.put_cond(NameRef('var'), 'foo')
self.assertEqual(self.c.eval(), 'foo')
self.scope.set_key('var', False)
self.assertEqual(self.c.eval(), Undefined)
def testTwoConds(self):
# one
self.c.put_cond(NameRef('var'), 'foo')
self.c.put_cond(NameRef('bar'), 'fuzz')
self.assertEqual(self.c.eval(), 'foo')
# two
self.scope.set_key('var', False)
self.assertEqual(self.c.eval(), Undefined)
# three
self.m['nothing'] = 42
self.assertEqual(self.c.eval(), 'fuzz')
def testElse(self):
self.scope.set_key('var', False)
self.c.refresh() # make sure setting else works after refresh
self.c.else_val = 'guth'
self.assertEqual(self.c.eval(), 'guth')
def testNoArgs(self):
m = Map()
m.put(KVPair('foo', 42))
f = Function(m)
r = f.call()
self.assertEqual(r, {'foo': 42})
class TestCall(unittest.TestCase):
def setUp(self):
# create functions
m0 = Map()
m0.put(KVPair('guk', NameRef('foo')))
self.f0 = Function(m0)
m1 = Map()
m1.put(KVPair('ack', NameRef('arg')))
self.f1 = Function(m1, ['arg'])
m2 = Map()
m2.put(KVPair('froz', NameRef('arg1')))
m2.put(KVPair('fuzz', NameRef('arg2')))
self.f2 = Function(m2, ['arg1', 'arg2'])
# put them in place
self.m = Map()
self.m.put(KVPair('foo', 42))
self.m.put(KVPair('f0',self.f0))
self.m.put(KVPair('f1',self.f1))
self.m.put(KVPair('f2',self.f2))
self.m.put(KVPair('call0', FunctionCall(NameRef('f0'))))
self.m.put(KVPair('call1', FunctionCall(NameRef('f1'), [13])))
self.m.put(KVPair('call2', FunctionCall(NameRef('f2'), ['ack', 17])))
def testCall0(self):
self.assertEqual(self.m['call0'], {'guk':42})
def testCall1(self):
self.assertEqual(self.m['call1'], {'ack': 13})
def testCall2(self):
self.assertEqual(self.m['call2'], {'froz':'ack', 'fuzz': 17})
def testOneArg(self):
m = Map()
m.put(KVPair('foo', NameRef('arg')))
f = Function(m, ['arg'])
r = f.call(42)
self.assertEqual(r, {'foo': 42})
class TestMap(unittest.TestCase):
def setUp(self):
self.m = Map()
def testOnePair(self):
self.m.put(KVPair('key', 'value'))
self.assertEqual(self.m['key'], 'value')
def testTwoPairs(self):
self.m.put(KVPair(13, 'value'))
self.m.put(KVPair('key', 42))
self.assertEqual(self.m[13], 'value')
self.assertEqual(self.m['key'], 42)
def testAssign(self):
self.m['key'] = 34
self.assertEqual(self.m['key'], 34)
def testLaterKeySupersedes(self):
self.m.put(KVPair('key', 4))
self.m['key'] = 45
self.m.put(KVPair('key', 13))
self.assertEqual(self.m['key'], 13)
def testMissingKeyisUndefined(self):
self.assertEqual(self.m['I do not exist'], fern.primitives.Undefined)
def testUndefinedValueDeletesKey(self):
self.m['foo'] = 17
self.m['foo'] = fern.primitives.Undefined
self.failIf('foo' in self.m)
def testSetKeyDoesNotAddChildren(self):
# we need to have a nice interface for changing keys by
# mutating KVPairs
self.m.put(KVPair('foo', 42))
self.m.put(KVPair('bar', 17))
self.m.put(KVPair('ggg', 'umm'))
self.assertEqual(self.m['bar'], 17)
self.assertEqual(len(self.m.children), 3)
# now the good part
self.m.set_key('bar', 13)
self.assertEqual(self.m['bar'], 13)
self.assertEqual(len(self.m.children), 3)
def setUp(self):
self.m = Map()
def setUp(self):
self.scope = Map()
self.scope['var'] = True
self.c = Conditional()
self.scope.put(self.c)