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import sys
from jmespath import ast
import unittest
import json
from collections import OrderedDict
# Helper method used to create an s-expression
# of the AST to make unit test assertions easier.
# You get a nice string diff on assert failures.
def as_s_expression(node):
parts = []
_as_s_expression(node, parts)
return ''.join(parts)
def _as_s_expression(node, parts):
parts.append("(%s" % (node.__class__.__name__.lower()))
if isinstance(node, ast.Field):
parts.append(" %s" % node.name)
elif isinstance(node, ast.FunctionExpression):
parts.append(" %s" % node.name)
elif isinstance(node, ast.KeyValPair):
parts.append(" %s" % node.key_name)
for child in node.children:
parts.append(" ")
_as_s_expression(child, parts)
parts.append(")")
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