def p_expression(p):
"""expression : json_path
| json_path FILTER_OP jp_object"""
if len(p) == 2:
p[0] = Expression(p[1])
else:
p[0] = Expression(p[1], p[2], p[3])
def test_filter_str_and_repr(self):
self.assertEqual(str(Filter("")), "[?()]")
self.assertEqual(str(Filter([])), "[?([])]")
self.assertEqual(str(Filter(Expression())), "[?()]")
self.assertEqual(repr(Filter([])), "Filter([])")
self.assertEqual(repr(Filter(Expression())),
"Filter(Expression(target='',op='',value=''))")
def test_str_and_repr(self):
self.assertEqual(str(Expression("", "", "")), "")
self.assertEqual(
str(Expression(Child(This(), Fields("name")), ">", 10)),
"@.name>10")
self.assertEqual(repr(Expression("", "", "")),
"Expression(target='',op='',value='')")
self.assertEqual(
repr(Expression("name", ">", 10)),
"Expression(target='name',op='>',value=10)",
)
def test_find(self):
data = {"value": 2, "other": 3}
self.assertEqual(
Expression(Child(This(), Fields("value")), "==", 2).find(data),
True)
self.assertEqual(
Expression(Child(This(), Fields("other")), "<", 6).find(data),
True)
self.assertEqual(
Expression(Child(This(), Fields("value")), None, 2).find(data),
True)
self.assertEqual(
Expression(Child(This(), Fields("val")), ">=", 4).find({}), False)
def test_find_with_none_expressions(self):
data = {"data": 2}
data_2 = [{"data": 2}, {"data": 4}]
self.assertEqual(find(Filter(None), data), [data])
self.assertEqual(find(Filter([]), data), [data])
self.assertEqual(find(Filter({}), data), [data])
expr = Expression(Child(Root(), Fields("data")), "==", 2)
self.assertEqual(find(Filter(expr), data_2), [{"data": 2}])
def test_equal(self):
self.assertEqual(Expression("", "", ""), Expression("", "", ""))
self.assertEqual(
Expression(Child(This(), Fields("name")), "==", 4),
Expression(Child(This(), Fields("name")), "==", 4),
)
self.assertNotEqual(Expression("", "", ""),
Expression(None, None, None))
def test_find(self):
data = [{"value": 2}, {"other": 3}, {"value": 1}]
exp = Expression(Child(This(), Fields("value")), "<=", 2)
self.assertEqual(find(Filter(exp), data), [{"value": 2}, {"value": 1}])
def test_find_with_no_list(self):
expr = Expression(Child(Root(), Fields("data")), "==", 2)
self.assertEqual(find(Filter(expr), {}), [])
def test_find_with_exception(self):
expr = Expression(Child(Root(), Fields("data")), "==", 2)
assert_with_error(self, Filter(expr), JPathNodeError)