Viewing file:  test_literal_expr.py (2.94 KB) -rw-r--r--
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from Ft.Lib import number
from Ft.Xml import XPath
from Ft.Xml.XPath import Context
from Ft.Xml.XPath.ParsedExpr import ParsedLiteralExpr, ParsedNLiteralExpr
StringLiterals = {}
def setupStringLiterals():
global StringLiterals
for key, token, evaluated in [
# lookup key, token, expected evaluated result
('Empty', u'""', u''),
('Hi', u'"Hi"', u'Hi'),
('NaN', u'"NaN"', u'NaN'),
('Unicode', u'"\u2022 = middle dot"', u'\u2022 = middle dot'),
('0', u'"0"', u'0'),
('1', u'"1"', u'1'),
('2', u'"2"', u'2'),
('3', u'"3"', u'3'),
('4', u'"4"', u'4'),
('5', u'"5"', u'5'),
('31', u'"31"', u'31'),
('N1', u'"-1"', u'-1'),
('N2', u'"-2"', u'-2'),
('N3', u'"-3"', u'-3'),
('N4', u'"-4"', u'-4'),
('N5', u'"-5"', u'-5'),
('Pi', u'"3.1415926535"', u'3.1415926535'),
]:
StringLiterals[key] = (ParsedLiteralExpr(token), evaluated)
return
NumberLiterals = {}
def setupNumberLiterals():
global NumberLiterals
for key, token, evaluated in [
# lookup key, token, expected evaluated result
('0', 0, 0.0),
('0p5', 0.5, 0.5),
('N0p5', -0.5, -0.5),
('1', 1, 1.0),
('N1', -1, -1.0),
('1p5', 1.5, 1.5),
('N1p5', -1.5, -1.5),
('2', 2, 2.0),
('N2', -2, -2.0),
('2p6', 2.6, 2.6),
('N2p6', -2.6, -2.6),
('3', 3, 3.0),
('N3', -3.0, -3.0),
('31', 31, 31.0),
('4', 4, 4.0),
('N4', -4, -4.0),
('4p5', 4.5, 4.5),
('N4p5', -4.5, -4.5),
('5', 5, 5.0),
('N5', -5, -5.0),
('N42', -42, -42.0),
('NaN', number.nan, number.nan),
('Inf', number.inf, number.inf),
('NInf', -number.inf, -number.inf),
]:
NumberLiterals[key] = (ParsedNLiteralExpr(token), evaluated)
return
def Test(tester):
context = Context.Context(tester.test_data['tree'].CHILD1,1,3)
tester.startGroup('String Literals')
tester.startTest('Parse string literal expression tokens')
setupStringLiterals()
tester.testDone()
tester.startGroup('Evaluate parsed string literal expression tokens')
global StringLiterals
for parsedexpr, expected in StringLiterals.values():
tester.startTest(repr(parsedexpr))
tester.compare(expected, parsedexpr.evaluate(context))
tester.testDone()
tester.groupDone()
tester.groupDone()
tester.startGroup('Number Literals')
tester.startTest('Parse numeric literal expression tokens')
setupNumberLiterals()
tester.testDone()
tester.startGroup('Evaluate parsed numeric literal expression tokens')
global NumberLiterals
for parsedexpr, expected in NumberLiterals.values():
tester.startTest(repr(parsedexpr))
tester.compare(expected, parsedexpr.evaluate(context))
tester.testDone()
tester.groupDone()
tester.groupDone()
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