def assert_decode_error(query_string, err):
try:
decode_query_string(query_string)
except ValueError as exc:
self.assertEqual(str(exc), err)
else:
self.fail()
def test_decode_query_string_degenerate(self): # pylint: disable=invalid-name
def assert_decode_error(query_string, err):
try:
decode_query_string(query_string)
except ValueError as exc:
self.assertEqual(str(exc), err)
else:
self.fail()
# Key with no equal - assume empty string
query_string = 'a=7&b'
assert_decode_error(query_string, "Invalid key/value pair 'b'")
# Empty string key
query_string = 'a=7&=b'
obj = {'a': '7', '': 'b'}
self.assertEqual(decode_query_string(query_string), obj)
# Empty string key and value
query_string = 'a=7&='
obj = {'a': '7', '': ''}
self.assertEqual(decode_query_string(query_string), obj)
# Empty string key and value with space
query_string = 'a=7& = '
obj = {'a': '7', ' ': ' '}
self.assertEqual(decode_query_string(query_string), obj)
# Empty string key with no equal
query_string = 'a=7&'
obj = {'a': '7'}
self.assertEqual(decode_query_string(query_string), obj)
# Multiple empty string key with no equal
query_string = 'a&b'
assert_decode_error(query_string, "Invalid key/value pair 'a'")
# Multiple empty string key with no equal
query_string = 'a&b&c'
assert_decode_error(query_string, "Invalid key/value pair 'a'")
# Multiple empty string key/value
query_string = '&'
obj = {}
self.assertEqual(decode_query_string(query_string), obj)
# Multiple empty string key/value
query_string = '&&'
obj = {}
self.assertEqual(decode_query_string(query_string), obj)
# Empty string sub-key
query_string = 'a.=5'
obj = {'a': {'': '5'}}
self.assertEqual(decode_query_string(query_string), obj)
# Duplicate keys
query_string = 'abc=21&ab=19&abc=17'
assert_decode_error(query_string, "Duplicate key 'abc=17'")
# Duplicate index
query_string = 'a.0=0&a.1=1&a.0=2'
assert_decode_error(query_string, "Duplicate key 'a.0=2'")
# Index too large
query_string = 'a.0=0&a.1=1&a.3=3'
assert_decode_error(query_string, "Invalid key/value pair 'a.3=3'")
# Negative index
query_string = 'a.0=0&a.1=1&a.-3=3'
assert_decode_error(query_string, "Invalid key/value pair 'a.-3=3'")
# First list, then dict
query_string = 'a.0=0&a.b=0'
assert_decode_error(query_string, "Invalid key/value pair 'a.b=0'")
def test_decode_query_string(self):
# Complex dict
query_string = '_a=7&a=7&b.c=%2Bx%20y%20%2B%20z&b.d.0=2&b.d.1=-4&b.d.2=6'
obj = {'a': '7', '_a': '7', 'b': {'c': '+x y + z', 'd': ['2', '-4', '6']}}
self.assertEqual(decode_query_string(query_string), obj)
# Array of dicts
query_string = 'foo.0.bar=17&foo.0.thud=blue&foo.1.boo=bear'
obj = {'foo': [{'bar': '17', 'thud': 'blue'}, {'boo': 'bear'}]}
self.assertEqual(decode_query_string(query_string), obj)
# Top-level array
query_string = '0=1&1=2&2=3'
obj = ['1', '2', '3'] # pylint: disable=redefined-variable-type
self.assertEqual(decode_query_string(query_string), obj)
# Empty query string
query_string = ''
obj = {}
self.assertEqual(decode_query_string(query_string), obj)
# Empty string value
query_string = 'b='
obj = {'b': ''}
self.assertEqual(decode_query_string(query_string), obj)
# Empty string value at end
query_string = 'a=7&b='
obj = {'a': '7', 'b': ''}
self.assertEqual(decode_query_string(query_string), obj)
# Empty string value at start
query_string = 'b=&a=7'
obj = {'a': '7', 'b': ''}
self.assertEqual(decode_query_string(query_string), obj)
# Empty string value in middle
query_string = 'a=7&b=&c=9'
obj = {'a': '7', 'b': '', 'c': '9'}
self.assertEqual(decode_query_string(query_string), obj)
# Decode keys and values
query_string = 'a%2eb.c=7%20+%207%20%3d%2014'
obj = {'a.b': {'c': '7 + 7 = 14'}}
self.assertEqual(decode_query_string(query_string), obj)
# Decode unicode string
query_string = 'a=abc%EA%80%80&b.0=c&b.1=d'
obj = {'a': 'abc' + chr(40960), 'b': ['c', 'd']}
self.assertEqual(decode_query_string(query_string), obj)
# Keys and values with special characters
query_string = 'a%26b%3Dc%2ed=a%26b%3Dc.d'
obj = {'a&b=c.d': 'a&b=c.d'}
self.assertEqual(decode_query_string(query_string), obj)
# Non-initial-zero array-looking index
query_string = 'a.1=0'
obj = {'a': {'1': '0'}}
self.assertEqual(decode_query_string(query_string), obj)
# Dictionary first, then array-looking zero index
query_string = 'a.b=0&a.0=0'
obj = {'a': {'b': '0', '0': '0'}}
self.assertEqual(decode_query_string(query_string), obj)