def test_global_names(self):
"""When an operand is bound, its global name must be set accordingly."""
operand = String("hey there")
bind1 = Bind("da_global_name", operand)
bind2 = Bind("Da_Global_Name", operand)
eq_(bind1.global_name, "da_global_name")
eq_(bind1.global_name, bind2.global_name)
def test_constructor_with_objects(self):
objects = [
Bind("greeting", String("hey")),
Bind("traffic", TrafficLightVar())
]
st = SymbolTable("global", objects)
eq_(st.objects, set(objects))
def test_retrieving_namespace_with_partially_untrastlated_contents(self):
"""
When a namespace is requested in a locale in which not all items are
available, the namespace with global names should be returned instead.
"""
bool_var = BoolVar()
traffic = TrafficLightVar()
st = SymbolTable(
"global",
(Bind("bool", BoolVar(), es="booleano", fr=u"booléen"),
Bind("traffic", TrafficLightVar(), es=u"tráfico")),
SymbolTable(
"foo",
(
Bind("bar", bool_var, es="fulano"),
Bind("baz", traffic, es="mengano", fr="bonjour"),
),
),
)
# Checking the namespace:
namespace = st.get_namespace("fr")
eq_(len(namespace.subnamespaces), 1)
subnamespace = namespace.subnamespaces["foo"]
subnamespace_objects = {
'bar': bool_var,
'bonjour': traffic,
}
eq_(subnamespace.objects, subnamespace_objects)
expected_unbound_objects_global = {
u'booléen': BoolVar(),
'traffic': TrafficLightVar(),
}
eq_(namespace.objects, expected_unbound_objects_global)
def _solve_rules(self, rules, metrics):
"""
solve the rules using the given metrics.
metrics must contains all needed metrics.
:param list[Rule] rules: the
:param metrics:
:return:
:raises:
pyparsing.ParseException
"""
results = {}
root_table = SymbolTable('root', ())
for metric_name, values in metrics.items():
# bind to allow "rmq & rmq:xxx"
root_table.add_object(Bind(metric_name, Constant(bool(values))))
# bind to allow "rmq:latency" etc
root_table.add_subtable(
SymbolTable(
metric_name,
tuple(Bind(k, Constant(v)) for k, v in values.items())))
# build the symbol table for all rules (as boolean)
rules_symbols = SymbolTable('rules', ())
root_table.add_subtable(rules_symbols)
for rule in rules:
rule_name_ = rule['name']
rules_symbols.add_object(
Bind(
rule_name_,
BooleanVariable(
partial(get_rule_result,
rule_name=rule_name_,
rule=rule))))
rules_symbols.add_subtable(
SymbolTable(rule_name_, (Bind(
'since',
DurationVariable(
partial(get_since, rule_name=rule_name_,
rule=rule))), )))
parse_manager = EvaluableParseManager(root_table, grammar)
for rule in rules:
expression_ = rule['expression']
try:
results[rule['name']] = parse_manager.parse(expression_)(
results)
except pyparsing.ParseException as e:
logger.debug("error while parsing %r: %s", expression_, e)
raise
return results
def test_string_without_symbol_table(self):
# With ASCII characters:
bind1 = Bind("pi", Number(3.1416))
bind1_as_unicode = six.text_type(bind1)
eq_(bind1_as_unicode, 'Operand 3.1416 bound as "pi"')
eq_(bind1_as_unicode, six.text_type(bind1))
# With non-ASCII characters:
bind2 = Bind(u"pí", Number(3.1416))
bind2_as_unicode = six.text_type(bind2)
eq_(bind2_as_unicode, u'Operand 3.1416 bound as "pí"')
eq_(six.text_type(bind2), 'Operand 3.1416 bound as "pí"')
def test_checking_duplicate_object_global_names(self):
"""
Two objects cannot have the same global names in the same table.
"""
st = SymbolTable(
"global",
(
Bind("e", Number(2.7183), es_VE=u"número e"),
Bind("pi", Number(3.1416)),
Bind("e", Number(2.71828), es_ES=u"número e"),
),
)
assert_raises(ScopeError, st.validate_scope)
def test_retrieving_non_existing_localized_names(self):
"""
When a non-existing localized name is requested, a warning must be
issued and the global name returned.
"""
bind = Bind("foo", String("hey"), es="fulano")
logging_fixture = LoggingHandlerFixture()
eq_(bind.get_localized_name("fr"), "foo")
# Checking for the the warning:
eq_(len(logging_fixture.handler.messages["warning"]), 1)
warning = logging_fixture.handler.messages["warning"][0]
eq_(warning, 'Operand "hey" bound as "foo" doesn\'t have a name in fr; '
'using the global one')
# Undoing it:
logging_fixture.undo()
def test_string_with_symbol_table(self):
# With ASCII characters:
bind1 = Bind("pi", Number(3.1416))
SymbolTable("global", [bind1])
bind1_as_unicode = six.text_type(bind1)
eq_('Operand 3.1416 bound as "pi" (in Symbol table global)',
bind1_as_unicode)
eq_(six.text_type(bind1), bind1_as_unicode)
# With non-ASCII characters:
bind2 = Bind(u"pí", Number(3.1416))
SymbolTable("global", [bind2])
bind2_as_unicode = six.text_type(bind2)
eq_(u'Operand 3.1416 bound as "pí" (in Symbol table global)',
bind2_as_unicode)
eq_('Operand 3.1416 bound as "pí" (in Symbol table global)',
six.text_type(bind2))
def test_names(self):
"""
When an operand is bound, its multiple names must be set accordingly.
"""
operand = String("Vive la france !")
# No localized names:
bind1 = Bind("foo", operand)
eq_(bind1.names, {})
# Lower-case names:
names0 = {'es_VE': "cartuchera", 'es_ES': "estuche"}
bind2 = Bind("bar", operand, **names0)
eq_(bind2.names, names0)
# Mixed-case names -- must be converted to lower-case:
names1 = {'es_VE': "Cartuchera", 'es_ES': "estuche"}
bind2 = Bind("bar", operand, **names1)
eq_(bind2.names, names0)
def test_name_clash_in_grand_children(self):
"""
The scope must be validated even inside the sub-tables.
"""
sciences_st1 = SymbolTable(
"sciences",
(),
SymbolTable("maths", (), es=u"matemática"),
SymbolTable("computing", ()),
SymbolTable("maths", ()),
)
sciences_st2 = SymbolTable(
"sciences",
(),
SymbolTable("maths", (), es=u"matemática"),
SymbolTable("computing", ()),
SymbolTable("mathematics", (), es=u"matemática"),
)
sciences_st3 = SymbolTable(
"sciences",
(),
SymbolTable("maths", (), es=u"matemática"),
SymbolTable("computing", ()),
# This sub-table will be called "matemática" in Spanish too:
SymbolTable(u"matemática", ()),
)
# Now a name clash at the objects level:
sciences_st4 = SymbolTable("global", (
Bind("foo", BoolVar()),
Bind("foo", TrafficLightVar(), es="bar"),
))
st1 = SymbolTable("global", (), sciences_st1,
SymbolTable("society", ()))
st2 = SymbolTable("global", (), sciences_st2,
SymbolTable("society", ()))
st3 = SymbolTable("global", (), sciences_st3,
SymbolTable("society", ()))
st4 = SymbolTable("global", (), sciences_st4)
assert_raises(ScopeError, st1.validate_scope)
assert_raises(ScopeError, st2.validate_scope)
assert_raises(ScopeError, st3.validate_scope)
assert_raises(ScopeError, st4.validate_scope)
def test_checking_valid_table(self):
st = SymbolTable(
"global",
# Bindings/global objects:
(
Bind("bool", BoolVar(), es="booleano"),
Bind("traffic", TrafficLightVar(), es=u"tráfico"),
),
# Sub-tables:
SymbolTable(
"maths",
(
Bind("pi", Number(3.1416)),
Bind("e", Number(2.7183)),
),
),
)
eq_(st.validate_scope(), None)
def test_checking_object_and_subtable_sharing_localized_name(self):
"""
It's valid for an object and a sub-table to share the localized name.
"""
st1 = SymbolTable(
"global",
(Bind("current_day", BoolVar(), es="hoy"), ),
SymbolTable("today", (), es="hoy"),
)
st2 = SymbolTable(
"global",
(Bind("current_day", BoolVar(), es="hoy"), ),
# This sub-name will be called "hoy" in Spanish too:
SymbolTable("hoy", ()),
)
eq_(st1.validate_scope(), None)
eq_(st2.validate_scope(), None)
def test_retrieving_non_existing_localized_names(self):
"""
When a non-existing localized name is requested, a warning must be
issued and the global name returned.
"""
bind = Bind("foo", String("hey"), es="fulano")
logging_fixture = LoggingHandlerFixture()
eq_(bind.get_localized_name("fr"), "foo")
# Checking for the the warning:
eq_(len(logging_fixture.handler.messages["warning"]), 1)
warning = logging_fixture.handler.messages["warning"][0]
eq_(
warning,
'Operand "hey" bound as "foo" doesn\'t have a name in fr; '
'using the global one')
# Undoing it:
logging_fixture.undo()
def test_checking_object_and_subtable_sharing_global_name(self):
"""
It's valid for an object and a sub-table to share the global name.
"""
st = SymbolTable(
"global",
(Bind("today", BoolVar()), ),
SymbolTable("today", ()),
)
eq_(st.validate_scope(), None)
def test_retrieving_namespace_without_children(self):
"""
A namespace shouldn't have sub-namespaces if the original symbol table
doesn't have sub-tables.
"""
bool_var = BoolVar()
traffic = TrafficLightVar()
st = SymbolTable(
"global",
(Bind("bool", bool_var,
es="booleano"), Bind("traffic", traffic, es=u"tráfico")),
)
# Checking the namespace:
global_namespace = st.get_namespace()
eq_(len(global_namespace.subnamespaces), 0)
# Checking the namespace in Castilian:
castilian_namespace = st.get_namespace("es")
eq_(len(castilian_namespace.subnamespaces), 0)
def test_retrieving_namespace_with_children(self):
"""
A namespace should have sub-namespaces for the sub-tables of the
original symbol table.
"""
bool_var = BoolVar()
traffic = TrafficLightVar()
st = SymbolTable(
"global",
(Bind("bool", bool_var,
es="booleano"), Bind("traffic", traffic, es=u"tráfico")),
SymbolTable(
"foo",
(
Bind("bar", bool_var, es="fulano"),
Bind("baz", traffic, es="mengano"),
),
),
)
# Checking the namespace:
global_namespace = st.get_namespace()
eq_(len(global_namespace.subnamespaces), 1)
global_subnamespace = global_namespace.subnamespaces["foo"]
global_subnamespace_objects = {
'bar': bool_var,
'baz': traffic,
}
eq_(global_subnamespace.objects, global_subnamespace_objects)
# Checking the namespace in Castilian:
castilian_namespace = st.get_namespace("es")
eq_(len(castilian_namespace.subnamespaces), 1)
castilian_subnamespace = castilian_namespace.subnamespaces["foo"]
castilian_subnamespace_objects = {
'fulano': bool_var,
'mengano': traffic,
}
eq_(castilian_subnamespace.objects, castilian_subnamespace_objects)
def test_unreusable_bindings(self):
"""
Operand bindings and symbol tables can only be bound to a single parent
symbol table.
"""
# An operand binding:
bind = Bind("traffic-light", TrafficLightVar())
SymbolTable("traffic", [bind])
assert_raises(ScopeError, SymbolTable, "baz", [bind])
# A symbol table:
st0 = SymbolTable("foo", [])
SymbolTable("global", [], st0)
assert_raises(ScopeError, SymbolTable, "bar", [], st0)
def create_grammar(self):
root_table = SymbolTable(
"root",
map(lambda f: Bind(f['name'], GeometryProperty(f['name'])),
self.fields))
tokens = {
'not': 'not',
'eq': '==',
'ne': '!=',
'belongs_to': 'in',
'is_subset': 'are included in',
'or': "or",
'and': 'and'
}
grammar = Grammar(**tokens)
self.parse_manager = EvaluableParseManager(root_table, grammar)
def test_duplicate_objects(self):
"""There must be no duplicate object."""
# In the constructor:
objects1 = [
Bind("salutation", String("hey")),
Bind("traffic", TrafficLightVar()),
Bind("salutation", String("hey"))
]
assert_raises(ScopeError, SymbolTable, "global", objects1)
# Post-instantiation:
objects2 = [
Bind("salutation", String("hey")),
Bind("traffic", TrafficLightVar())
]
st = SymbolTable("global", objects2)
assert_raises(ScopeError, st.add_object,
Bind("salutation", String("hey")))
def test_checking_duplicate_object_localized_names(self):
"""
Two objects cannot have the same localized names in the same table.
"""
st1 = SymbolTable(
"global",
(
Bind("e", Number(2.7183), es_VE=u"número e"),
Bind("pi", Number(3.1416)),
Bind("eulers-number", Number(2.71828), es_VE=u"número e"),
),
)
st2 = SymbolTable(
"global",
(
Bind("e", Number(2.7183), es_VE=u"número e"),
Bind("pi", Number(3.1416)),
# These object will be called "número e" in Spanish too:
Bind(u"número e", Number(2.71828)),
),
)
assert_raises(ScopeError, st1.validate_scope)
assert_raises(ScopeError, st2.validate_scope)
#!/usr/bin/env python3
# -*- coding: utf-8 -*-
import datetime
from booleano.operations.operands.constants import Number
from booleano.parser.core import EvaluableParseManager
from booleano.parser.grammar import Grammar
from booleano.operations.variables import NumberVariable, StringVariable, DurationVariable, SetVariable
from booleano.parser.scope import SymbolTable, Bind
name = StringVariable("name")
symbols = SymbolTable(
'my_table', [
Bind('character', name),
],
SymbolTable('character', [
Bind('age', NumberVariable('age')),
Bind('name', name),
Bind('training', DurationVariable('training')),
Bind('bending', SetVariable('bending')),
]), SymbolTable('consts', [
Bind('majority', Number(18)),
]))
grammar = Grammar(**{'and': 'and', 'or': 'or', 'belongs_to': 'in'})
# 2: create the parser with se symbol table and the grammar (customized)
parse_manager = EvaluableParseManager(symbols, grammar)
# 3: compile a expression
def test_no_default_symbol_table(self):
"""Operand bindings must not be in a symbol table by default."""
bind = Bind("foo", String("whatever"))
eq_(bind.symbol_table, None)
def test_retrieving_existing_localized_names(self):
bind = Bind("foo", String("hey"), es="fulano")
eq_(bind.get_localized_name("es"), "fulano")
def test_contents_retrieval(self):
"""Bindings must return bound operand as its contents."""
op = BoolVar()
bind = Bind("bool", op)
eq_(op, bind._get_contents(None))
def test_constant(self):
"""Constants can be bound."""
constant = String("I'm a string!")
bound_constant = Bind("da_string", constant)
eq_(bound_constant.operand, constant)
def test_retrieving_existing_localized_names(self):
bind = Bind("foo", String("hey"), es="fulano")
eq_(bind.get_localized_name("es"), "fulano")
def test_equivalence(self):
objects1 = lambda: [
Bind("dish", String("cachapa")),
Bind("drink", String("empanada"))
]
objects2 = lambda: [
Bind("drink", String("empanada")),
Bind("dish", String("cachapa"))
]
objects3 = lambda: [Bind("pi", Number(3.1416))]
st1 = SymbolTable("foo", objects1())
st2 = SymbolTable("foo", objects1())
st3 = SymbolTable("foo", objects1(), es="fulano")
st4 = SymbolTable("foo", objects1(), es="fulano")
st5 = SymbolTable("foo", objects2())
st6 = SymbolTable("foo", objects3())
st7 = SymbolTable("foo", objects2(), es="fulano")
st8 = SymbolTable("foo", objects3(), es_VE="fulano")
st9 = SymbolTable("bar", objects1())
st10 = SymbolTable("foo", objects1())
st11 = SymbolTable("foo", objects1(), SymbolTable("bar", []),
SymbolTable("baz", []))
st12 = SymbolTable("foo", objects1(), SymbolTable("baz", []),
SymbolTable("bar", []))
# Moving st10 into the "baz" symbol table:
SymbolTable("baz", [], st10)
ok_(st1 == st2)
ok_(st1 == st5)
ok_(st1 == st10)
ok_(st2 == st1)
ok_(st2 == st5)
ok_(st2 == st10)
ok_(st3 == st4)
ok_(st3 == st7)
ok_(st4 == st3)
ok_(st4 == st7)
ok_(st5 == st1)
ok_(st5 == st2)
ok_(st5 == st10)
ok_(st7 == st3)
ok_(st7 == st4)
ok_(st10 == st1)
ok_(st10 == st2)
ok_(st10 == st5)
ok_(st11 == st12)
ok_(st12 == st11)
ok_(st1 != None)
ok_(st1 != Bind("foo", String("cachapa")))
ok_(st1 != st3)
ok_(st1 != st4)
ok_(st1 != st6)
ok_(st1 != st7)
ok_(st1 != st8)
ok_(st1 != st9)
ok_(st1 != st11)
ok_(st1 != st12)
ok_(st2 != st3)
ok_(st2 != st4)
ok_(st2 != st6)
ok_(st2 != st7)
ok_(st2 != st8)
ok_(st2 != st9)
ok_(st2 != st11)
ok_(st2 != st12)
ok_(st3 != st1)
ok_(st3 != st2)
ok_(st3 != st5)
ok_(st3 != st6)
ok_(st3 != st8)
ok_(st3 != st9)
ok_(st3 != st10)
ok_(st3 != st11)
ok_(st3 != st12)
ok_(st4 != st1)
ok_(st4 != st2)
ok_(st4 != st5)
ok_(st4 != st6)
ok_(st4 != st8)
ok_(st4 != st9)
ok_(st4 != st10)
ok_(st4 != st11)
ok_(st4 != st12)
ok_(st5 != st3)
ok_(st5 != st4)
ok_(st5 != st6)
ok_(st5 != st7)
ok_(st5 != st8)
ok_(st5 != st9)
ok_(st5 != st11)
ok_(st5 != st12)
ok_(st6 != st1)
ok_(st6 != st2)
ok_(st6 != st3)
ok_(st6 != st4)
ok_(st6 != st5)
ok_(st6 != st7)
ok_(st6 != st8)
ok_(st6 != st9)
ok_(st6 != st10)
ok_(st6 != st11)
ok_(st6 != st12)
ok_(st7 != st1)
ok_(st7 != st2)
ok_(st7 != st5)
ok_(st7 != st6)
ok_(st7 != st8)
ok_(st7 != st9)
ok_(st7 != st10)
ok_(st7 != st11)
ok_(st7 != st12)
ok_(st8 != st1)
ok_(st8 != st2)
ok_(st8 != st3)
ok_(st8 != st4)
ok_(st8 != st5)
ok_(st8 != st6)
ok_(st8 != st7)
ok_(st8 != st9)
ok_(st8 != st10)
ok_(st8 != st11)
ok_(st8 != st12)
ok_(st9 != st1)
ok_(st9 != st2)
ok_(st9 != st3)
ok_(st9 != st4)
ok_(st9 != st5)
ok_(st9 != st6)
ok_(st9 != st7)
ok_(st9 != st8)
ok_(st9 != st10)
ok_(st9 != st11)
ok_(st9 != st12)
ok_(st10 != st3)
ok_(st10 != st4)
ok_(st10 != st6)
ok_(st10 != st7)
ok_(st10 != st8)
ok_(st10 != st9)
ok_(st11 != st1)
ok_(st11 != st2)
ok_(st11 != st3)
ok_(st11 != st4)
ok_(st11 != st5)
ok_(st11 != st6)
ok_(st11 != st7)
ok_(st11 != st8)
ok_(st11 != st9)
ok_(st11 != st10)
ok_(st12 != st1)
ok_(st12 != st2)
ok_(st12 != st3)
ok_(st12 != st4)
ok_(st12 != st5)
ok_(st12 != st6)
ok_(st12 != st7)
ok_(st12 != st8)
ok_(st12 != st9)
ok_(st12 != st10)
def test_instance(self):
"""Class instances can be bound."""
instance = TrafficLightVar()
bound_instance = Bind("da_variable", instance)
eq_(bound_instance.operand, instance)
def test_contents_retrieval(self):
"""Bindings must return bound operand as its contents."""
op = BoolVar()
bind = Bind("bool", op)
eq_(op, bind._get_contents(None))
def test_equality(self):
"""Two bindings are equivalent if they have the same names."""
op1 = TrafficLightVar()
op2 = String("hey, where's my car?")
bind1 = Bind("name1", op1)
bind2 = Bind("name2", op2)
bind3 = Bind("name2", op1)
bind4 = Bind("name1", op2)
bind5 = Bind("name1", op1)
bind6 = Bind("name2", op2)
bind7 = Bind("name1", op1, es="nombre1")
bind8 = Bind("name1", op1, es_VE="nombre1", es="nombre1")
bind9 = Bind("name1", op1, es="nombre1")
ok_(bind1 == bind4)
ok_(bind1 == bind5)
ok_(bind2 == bind3)
ok_(bind2 == bind6)
ok_(bind3 == bind2)
ok_(bind3 == bind6)
ok_(bind4 == bind1)
ok_(bind4 == bind5)
ok_(bind5 == bind5)
ok_(bind5 == bind1)
ok_(bind5 == bind4)
ok_(bind6 == bind2)
ok_(bind6 == bind3)
ok_(bind7 == bind9)
ok_(bind9 == bind7)
ok_(bind1 != None)
ok_(bind1 != SymbolTable("name1", []))
ok_(bind1 != bind2)
ok_(bind1 != bind3)
ok_(bind1 != bind6)
ok_(bind1 != bind7)
ok_(bind1 != bind8)
ok_(bind1 != bind9)
ok_(bind2 != bind1)
ok_(bind2 != bind4)
ok_(bind2 != bind5)
ok_(bind2 != bind7)
ok_(bind2 != bind8)
ok_(bind2 != bind9)
ok_(bind3 != bind1)
ok_(bind3 != bind4)
ok_(bind3 != bind5)
ok_(bind3 != bind7)
ok_(bind3 != bind8)
ok_(bind3 != bind9)
ok_(bind4 != bind2)
ok_(bind4 != bind3)
ok_(bind4 != bind6)
ok_(bind4 != bind7)
ok_(bind4 != bind8)
ok_(bind4 != bind9)
ok_(bind5 != bind2)
ok_(bind5 != bind3)
ok_(bind5 != bind6)
ok_(bind5 != bind7)
ok_(bind5 != bind8)
ok_(bind5 != bind9)
ok_(bind6 != bind1)
ok_(bind6 != bind4)
ok_(bind6 != bind5)
ok_(bind6 != bind7)
ok_(bind6 != bind8)
ok_(bind6 != bind9)
ok_(bind7 != bind1)
ok_(bind7 != bind2)
ok_(bind7 != bind3)
ok_(bind7 != bind4)
ok_(bind7 != bind5)
ok_(bind7 != bind6)
ok_(bind7 != bind8)
ok_(bind8 != bind1)
ok_(bind8 != bind2)
ok_(bind8 != bind3)
ok_(bind8 != bind4)
ok_(bind8 != bind5)
ok_(bind8 != bind6)
ok_(bind8 != bind7)
ok_(bind8 != bind9)
ok_(bind9 != bind1)
ok_(bind9 != bind2)
ok_(bind9 != bind3)
ok_(bind9 != bind4)
ok_(bind9 != bind5)
ok_(bind9 != bind6)
ok_(bind9 != bind8)
def test_repr(self):
bind = Bind("pi", Number(3.1416))
eq_(repr(bind), u'<Operand 3.1416 bound as "pi">')
"age": 16,
"birthdate": datetime.date(1983, 1, 1)
},
{
"name": "sokka",
"age": 15,
"birthdate": datetime.date(1984, 1, 1)
},
]
# 1: create a static Symbol Table
root_table = SymbolTable(
"root",
(
# variablet taken from context
Bind("age", NumberVariable('age')),
Bind("name", StringVariable('name')),
Bind("birthdate", DateVariable("birthdate")),
Bind("tags", SetVariable("tags")),
# constants
Bind("majority", Number(18)),
))
# 2: create the parser with se symbol table and the grammar (customized)
grammar = Grammar(belongs_to='in')
parse_manager = EvaluableParseManager(root_table, grammar)
# 3: compile a expression
# compiled_expression = parse_manager.parse('age < majority & "o" in name & birthdate > "1983-02-02"')
# check the command line args
