Viewing file:  test_numeric_expr.py (16.61 KB) -rw-r--r--
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import test_literal_expr
from Ft.Xml.XPath import ParsedExpr
from Ft.Lib.boolean import true, false
from Ft.Lib.number import nan, inf
test_literal_expr.setupStringLiterals()
StringLiterals = test_literal_expr.StringLiterals
test_literal_expr.setupNumberLiterals()
NumberLiterals = test_literal_expr.NumberLiterals
def RunTests(tester, tests):
for klass, cases in tests:
tester.startGroup(klass.__name__)
for args, expected in cases:
expr = klass(*args)
# of course the test started already,
# but we like the nice string repr
tester.startTest(repr(expr))
result = expr.evaluate(None)
tester.compare(expected, result, 'Wrong result evaluating "%s".' % repr(expr))
tester.testDone()
tester.groupDone()
def Test(tester):
tester.startGroup('Numeric Expressions with Number Literals')
tester.startTest('Creating test environment')
from DummyExpr import DummyNodeSetExpr
DomTree = tester.test_data['tree']
attr31 = DomTree.ATTR31
nodeset31 = DummyNodeSetExpr([attr31])
# IEEE 754 says:
#
# +-Infinity * +-Infinity = +-Infinity
# +-Infinity * 0 = NaN
#
# n div +-Infinity = 0
# +-nonzero div 0 = +-Infinity
# +-Infinity div +-Infinity = NaN
# +-0 div +-0 = NaN
#
# Infinity + Infinity = Infinity
# Infinity - Infinity = NaN
# operators:
# * -> 0
# div -> 1
# mod -> 2
multiply_tests = [#(operator, left expression, right expression), expected result)
((0, NumberLiterals['N5'][0], NumberLiterals['2'][0]), -10.0),
((0, NumberLiterals['N4'][0], NumberLiterals['N2'][0]), 8.0),
((0, NumberLiterals['0'][0], NumberLiterals['2'][0]), 0.0),
((0, NumberLiterals['Inf'][0], NumberLiterals['Inf'][0]), inf),
((0, NumberLiterals['NInf'][0], NumberLiterals['NInf'][0]), inf),
((0, NumberLiterals['Inf'][0], NumberLiterals['NInf'][0]), -inf),
((1, NumberLiterals['0'][0], NumberLiterals['2'][0]), 0.0),
((1, NumberLiterals['N5'][0], NumberLiterals['2'][0]), -2.5),
((1, NumberLiterals['N4'][0], NumberLiterals['N2'][0]), 2.0),
((1, NumberLiterals['0'][0], NumberLiterals['0'][0]), nan),
((1, NumberLiterals['1'][0], NumberLiterals['0'][0]), inf),
((1, NumberLiterals['N1'][0], NumberLiterals['0'][0]), -inf),
((1, NumberLiterals['0'][0], NumberLiterals['Inf'][0]), 0),
((1, NumberLiterals['1'][0], NumberLiterals['Inf'][0]), 0),
((1, NumberLiterals['N1'][0], NumberLiterals['Inf'][0]), 0),
((1, NumberLiterals['0'][0], NumberLiterals['NInf'][0]), 0),
((1, NumberLiterals['1'][0], NumberLiterals['NInf'][0]), 0),
((1, NumberLiterals['N1'][0], NumberLiterals['NInf'][0]), 0),
((1, NumberLiterals['Inf'][0], NumberLiterals['Inf'][0]), nan),
((1, NumberLiterals['Inf'][0], NumberLiterals['NInf'][0]), nan),
((1, NumberLiterals['NInf'][0], NumberLiterals['NInf'][0]), nan),
((1, NumberLiterals['NInf'][0], NumberLiterals['Inf'][0]), nan),
((2, NumberLiterals['0'][0], NumberLiterals['2'][0]), 0.0),
((2, NumberLiterals['5'][0], NumberLiterals['2'][0]), 1.0),
((2, NumberLiterals['5'][0], NumberLiterals['N2'][0]), -1.0),
((2, NumberLiterals['N5'][0], NumberLiterals['2'][0]), 1.0),
((2, NumberLiterals['N5'][0], NumberLiterals['N2'][0]), -1.0),
]
# operators:
# + -> 1
# - -> -1
addition_tests = [((1, NumberLiterals['5'][0], NumberLiterals['2'][0]), 7.0),
((1, NumberLiterals['3'][0], NumberLiterals['N2'][0]), 1.0),
((1, NumberLiterals['Inf'][0], NumberLiterals['Inf'][0]), inf),
((-1, NumberLiterals['5'][0], NumberLiterals['2'][0]), 3.0),
((-1, NumberLiterals['3'][0], NumberLiterals['N2'][0]), 5.0),
((-1, NumberLiterals['Inf'][0], NumberLiterals['Inf'][0]), nan),
]
unary_tests = [((NumberLiterals['5'][0],), -5.0),
((NumberLiterals['N2'][0],), 2.0),
]
# operators:
# '=' -> =
# (anything else) -> '!='
equality_tests = [(('=', NumberLiterals['5'][0], NumberLiterals['5'][0]), true),
(('=', NumberLiterals['5'][0], NumberLiterals['N5'][0]), false),
(('=', NumberLiterals['N5'][0], NumberLiterals['N5'][0]), true),
(('=', NumberLiterals['0'][0], NumberLiterals['0'][0]), true),
(('=', NumberLiterals['Inf'][0], NumberLiterals['Inf'][0]), true),
(('=', NumberLiterals['NInf'][0], NumberLiterals['NInf'][0]), true),
(('=', NumberLiterals['5'][0], NumberLiterals['Inf'][0]), false),
(('=', NumberLiterals['5'][0], NumberLiterals['NaN'][0]), false),
(('=', NumberLiterals['NaN'][0], NumberLiterals['NaN'][0]), false),
(('=', NumberLiterals['5'][0], nodeset31), false),
(('!=', NumberLiterals['5'][0], NumberLiterals['5'][0]), false),
(('!=', NumberLiterals['5'][0], NumberLiterals['N5'][0]), true),
(('!=', NumberLiterals['N5'][0], NumberLiterals['N5'][0]), false),
(('!=', NumberLiterals['0'][0], NumberLiterals['0'][0]), false),
(('!=', NumberLiterals['Inf'][0], NumberLiterals['Inf'][0]), false),
(('!=', NumberLiterals['NInf'][0], NumberLiterals['NInf'][0]), false),
(('!=', NumberLiterals['5'][0], NumberLiterals['Inf'][0]), true),
(('!=', NumberLiterals['5'][0], NumberLiterals['NaN'][0]), true),
(('!=', NumberLiterals['NaN'][0], NumberLiterals['NaN'][0]), true),
(('!=', NumberLiterals['5'][0], nodeset31), true),
]
# operators:
# 0 -> <
# 1 -> <=
# 2 -> >
# 3 -> >=
relational_tests = [((0, NumberLiterals['5'][0], NumberLiterals['5'][0]), false),
((1, NumberLiterals['5'][0], NumberLiterals['5'][0]), true),
((2, NumberLiterals['5'][0], NumberLiterals['5'][0]), false),
((3, NumberLiterals['5'][0], NumberLiterals['5'][0]), true),
((0, NumberLiterals['5'][0], NumberLiterals['N5'][0]), false),
((1, NumberLiterals['5'][0], NumberLiterals['N5'][0]), false),
((2, NumberLiterals['5'][0], NumberLiterals['N5'][0]), true),
((3, NumberLiterals['5'][0], NumberLiterals['N5'][0]), true),
((0, NumberLiterals['5'][0], NumberLiterals['0'][0]), false),
((1, NumberLiterals['5'][0], NumberLiterals['0'][0]), false),
((2, NumberLiterals['5'][0], NumberLiterals['0'][0]), true),
((3, NumberLiterals['5'][0], NumberLiterals['0'][0]), true),
((0, NumberLiterals['5'][0], NumberLiterals['Inf'][0]), true),
((1, NumberLiterals['5'][0], NumberLiterals['Inf'][0]), true),
((2, NumberLiterals['5'][0], NumberLiterals['Inf'][0]), false),
((3, NumberLiterals['5'][0], NumberLiterals['Inf'][0]), false),
((0, NumberLiterals['5'][0], NumberLiterals['NInf'][0]), false),
((1, NumberLiterals['5'][0], NumberLiterals['NInf'][0]), false),
((2, NumberLiterals['5'][0], NumberLiterals['NInf'][0]), true),
((3, NumberLiterals['5'][0], NumberLiterals['NInf'][0]), true),
((0, NumberLiterals['5'][0], NumberLiterals['NaN'][0]), false),
((1, NumberLiterals['5'][0], NumberLiterals['NaN'][0]), false),
((2, NumberLiterals['5'][0], NumberLiterals['NaN'][0]), false),
((3, NumberLiterals['5'][0], NumberLiterals['NaN'][0]), false),
((0, NumberLiterals['5'][0], nodeset31), true),
((1, NumberLiterals['5'][0], nodeset31), true),
((2, NumberLiterals['5'][0], nodeset31), false),
((3, NumberLiterals['5'][0], nodeset31), false),
]
tests = [(ParsedExpr.ParsedMultiplicativeExpr, multiply_tests),
(ParsedExpr.ParsedAdditiveExpr, addition_tests),
(ParsedExpr.ParsedUnaryExpr, unary_tests),
(ParsedExpr.ParsedEqualityExpr, equality_tests),
(ParsedExpr.ParsedRelationalExpr, relational_tests),
]
tester.testDone()
RunTests(tester, tests)
tester.groupDone()
# basically tests automatic coercion of strings to numbers
tester.startGroup('Numeric Expressions with String Literals')
tester.startTest('Creating test environment')
multiply_tests = [#(operator, left expression, right expression), expected result)
((0, StringLiterals['N5'][0], StringLiterals['2'][0]), -10.0),
((0, StringLiterals['N4'][0], StringLiterals['N2'][0]), 8.0),
((0, StringLiterals['0'][0], StringLiterals['2'][0]), 0.0),
((0, StringLiterals['1'][0], StringLiterals['1'][0]), 1.0),
((0, StringLiterals['Pi'][0], StringLiterals['1'][0]), 3.1415926535),
((0, StringLiterals['Empty'][0], StringLiterals['1'][0]), nan),
((0, StringLiterals['Hi'][0], StringLiterals['1'][0]), nan),
((0, StringLiterals['NaN'][0], StringLiterals['1'][0]), nan),
((0, StringLiterals['Unicode'][0], StringLiterals['1'][0]), nan),
((1, StringLiterals['0'][0], StringLiterals['2'][0]), 0.0),
((1, StringLiterals['1'][0], StringLiterals['1'][0]), 1.0),
((1, StringLiterals['N5'][0], StringLiterals['2'][0]), -2.5),
((1, StringLiterals['N4'][0], StringLiterals['N2'][0]), 2.0),
((1, StringLiterals['0'][0], StringLiterals['0'][0]), nan),
((1, StringLiterals['1'][0], StringLiterals['0'][0]), inf),
((1, StringLiterals['N1'][0], StringLiterals['0'][0]), -inf),
((2, StringLiterals['0'][0], StringLiterals['2'][0]), 0.0),
((2, StringLiterals['5'][0], StringLiterals['2'][0]), 1.0),
((2, StringLiterals['5'][0], StringLiterals['N2'][0]), -1.0),
((2, StringLiterals['N5'][0], StringLiterals['2'][0]), 1.0),
((2, StringLiterals['N5'][0], StringLiterals['N2'][0]), -1.0),
]
addition_tests = [((1, StringLiterals['5'][0], StringLiterals['2'][0]), 7.0),
((1, StringLiterals['3'][0], StringLiterals['N2'][0]), 1.0),
((-1, StringLiterals['5'][0], StringLiterals['2'][0]), 3.0),
((-1, StringLiterals['3'][0], StringLiterals['N2'][0]), 5.0),
]
unary_tests = [((StringLiterals['5'][0],), -5.0),
((StringLiterals['N2'][0],), 2.0),
]
equality_tests = [(('=', StringLiterals['5'][0], StringLiterals['5'][0]), true),
(('=', StringLiterals['5'][0], StringLiterals['N5'][0]), false),
(('=', StringLiterals['N5'][0], StringLiterals['N5'][0]), true),
(('=', StringLiterals['0'][0], StringLiterals['0'][0]), true),
(('=', StringLiterals['Hi'][0], StringLiterals['Hi'][0]), true),
(('=', StringLiterals['5'][0], StringLiterals['Hi'][0]), false),
(('=', StringLiterals['5'][0], StringLiterals['NaN'][0]), false),
(('=', StringLiterals['NaN'][0], StringLiterals['NaN'][0]), true),
(('=', StringLiterals['5'][0], nodeset31), false),
(('!=', StringLiterals['5'][0], StringLiterals['5'][0]), false),
(('!=', StringLiterals['5'][0], StringLiterals['N5'][0]), true),
(('!=', StringLiterals['N5'][0], StringLiterals['N5'][0]), false),
(('!=', StringLiterals['0'][0], StringLiterals['0'][0]), false),
(('!=', StringLiterals['5'][0], StringLiterals['Hi'][0]), true),
(('!=', StringLiterals['5'][0], StringLiterals['NaN'][0]), true),
(('!=', StringLiterals['NaN'][0], StringLiterals['NaN'][0]), false),
(('!=', StringLiterals['5'][0], nodeset31), true),
]
relational_tests = [((0, NumberLiterals['5'][0], StringLiterals['5'][0]), false), # 5 < '5'
((0, NumberLiterals['31'][0], StringLiterals['5'][0]), false), # 31 < '5'
((0, StringLiterals['5'][0], StringLiterals['5'][0]), false), # '5' < '5'
((0, StringLiterals['31'][0], StringLiterals['5'][0]), false), # '31' < '5'
((1, NumberLiterals['5'][0], StringLiterals['5'][0]), true), # 5 <= '5'
((1, NumberLiterals['31'][0], StringLiterals['5'][0]), false), # 31 <= '5'
((1, StringLiterals['5'][0], StringLiterals['5'][0]), true), # '5' <= '5'
((1, StringLiterals['31'][0], StringLiterals['5'][0]), false), # '31' <= '5'
((2, NumberLiterals['5'][0], StringLiterals['5'][0]), false), # 5 > '5'
((2, NumberLiterals['31'][0], StringLiterals['5'][0]), true), # 31 > '5'
((2, StringLiterals['5'][0], StringLiterals['5'][0]), false), # '5' > '5'
((2, StringLiterals['31'][0], StringLiterals['5'][0]), true), # '31' > '5'
((0, NumberLiterals['5'][0], StringLiterals['N5'][0]), false), # 5 < '-5'
((0, NumberLiterals['31'][0], StringLiterals['N5'][0]), false), # 31 < '-5'
((0, StringLiterals['5'][0], StringLiterals['N5'][0]), false), # '5' < '-5'
((0, StringLiterals['31'][0], StringLiterals['N5'][0]), false), # '31' < '-5'
((1, NumberLiterals['5'][0], StringLiterals['N5'][0]), false), # 5 <= '-5'
((1, NumberLiterals['31'][0], StringLiterals['N5'][0]), false), # 31 <= '-5'
((1, StringLiterals['5'][0], StringLiterals['N5'][0]), false), # '5' <= '-5'
((1, StringLiterals['31'][0], StringLiterals['N5'][0]), false), # '31' <= '-5'
((2, NumberLiterals['5'][0], StringLiterals['N5'][0]), true), # 5 > '-5'
((2, NumberLiterals['31'][0], StringLiterals['N5'][0]), true), # 31 > '-5'
((2, StringLiterals['5'][0], StringLiterals['N5'][0]), true), # '5' > '-5'
((2, StringLiterals['31'][0], StringLiterals['N5'][0]), true), # '31' > '-5'
((0, StringLiterals['5'][0], StringLiterals['Hi'][0]), false), # '5' < 'Hi'
((1, StringLiterals['5'][0], StringLiterals['Hi'][0]), false), # '5' <= 'Hi'
((2, StringLiterals['5'][0], StringLiterals['Hi'][0]), false), # '5' > 'Hi'
((3, StringLiterals['5'][0], StringLiterals['Hi'][0]), false), # '5' >= 'Hi'
((0, StringLiterals['5'][0], nodeset31), true), # '5' < (node '31')
((1, StringLiterals['5'][0], nodeset31), true), # '5' <= (node '31')
((2, StringLiterals['5'][0], nodeset31), false), # '5' > (node '31')
((3, StringLiterals['5'][0], nodeset31), false), # '5' >= (node '31')
]
tests = [(ParsedExpr.ParsedMultiplicativeExpr, multiply_tests),
(ParsedExpr.ParsedAdditiveExpr, addition_tests),
(ParsedExpr.ParsedUnaryExpr, unary_tests),
(ParsedExpr.ParsedEqualityExpr, equality_tests),
(ParsedExpr.ParsedRelationalExpr, relational_tests),
]
tester.testDone()
RunTests(tester, tests)
tester.groupDone()
return
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