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Add various formats for data types #38

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Add various formats for data types #38

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6c7623c
Fix typo in min_value
Nov 21, 2019
0512216
Add string formats for fuzzing
Nov 21, 2019
d91f0fd
Move pattern logic and add check for fullmatch
Nov 22, 2019
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19 changes: 17 additions & 2 deletions fuzz_lightyear/fuzzer.py
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Original file line number Diff line number Diff line change
Expand Up @@ -6,6 +6,7 @@
from typing import Optional
from typing import Tuple

import hypothesis.provisional as pr
import hypothesis.strategies as st
from hypothesis.searchstrategy.strategies import SearchStrategy
from swagger_spec_validator.common import SwaggerValidationError # type: ignore
Expand Down Expand Up @@ -105,11 +106,25 @@ def _fuzz_string(
# https://swagger.io/docs/specification/data-models/data-types/#string
kwargs = {} # type: Dict[str, Any]

kwargs['min_size'] = parameter.get('minLength', 0)
kwargs['max_size'] = parameter.get('maxLength')

string_format = parameter.get('format')

if parameter.get('pattern'):
return st.from_regex(parameter['pattern'])
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elif string_format == 'ipv4':
return pr.ip4_addr_strings()
elif string_format == 'ipv6':
return pr.ip6_addr_strings()
elif string_format == 'binary':
return st.binary(**kwargs)

if parameter.get('required', required):
kwargs['min_size'] = 1

if not get_settings().unicode_enabled:
kwargs['alphabet'] = string.printable

return st.text(**kwargs)


Expand All @@ -121,7 +136,7 @@ def _find_bounds(schema: Dict[str, Any]) -> Dict[str, Any]:
if 'minimum' in schema:
bounds['min_value'] = schema['minimum']
if schema.get('exclusiveMinimum'):
bounds['min_vallue'] += 1.0
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bounds['min_value'] += 1.0

if 'maximum' in schema:
bounds['max_value'] = schema['maximum']
Expand Down