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from __future__ import unicode_literals, print_function, absolute_import, division, generators, nested_scopes
import unittest
from jsonpath_rw import jsonpath # For setting the global auto_id_field flag
from jsonpath_rw.parser import parse
from jsonpath_rw.jsonpath import *
from jsonpath_rw.lexer import JsonPathLexerError
class TestDatumInContext(unittest.TestCase):
"""
Tests of properties of the DatumInContext and AutoIdForDatum objects
"""
@classmethod
def setup_class(cls):
logging.basicConfig()
def test_DatumInContext_init(self):
test_datum1 = DatumInContext(3)
assert test_datum1.path == This()
assert test_datum1.full_path == This()
test_datum2 = DatumInContext(3, path=Root())
assert test_datum2.path == Root()
assert test_datum2.full_path == Root()
test_datum3 = DatumInContext(3, path=Fields('foo'), context='does not matter')
assert test_datum3.path == Fields('foo')
assert test_datum3.full_path == Fields('foo')
test_datum3 = DatumInContext(3, path=Fields('foo'), context=DatumInContext('does not matter', path=Fields('baz'), context='does not matter'))
assert test_datum3.path == Fields('foo')
assert test_datum3.full_path == Fields('baz').child(Fields('foo'))
def test_DatumInContext_in_context(self):
assert (DatumInContext(3).in_context(path=Fields('foo'), context=DatumInContext('whatever'))
==
DatumInContext(3, path=Fields('foo'), context=DatumInContext('whatever')))
assert (DatumInContext(3).in_context(path=Fields('foo'), context='whatever').in_context(path=Fields('baz'), context='whatever')
==
DatumInContext(3).in_context(path=Fields('foo'), context=DatumInContext('whatever').in_context(path=Fields('baz'), context='whatever')))
# def test_AutoIdForDatum_pseudopath(self):
# assert AutoIdForDatum(DatumInContext(value=3, path=Fields('foo')), id_field='id').pseudopath == Fields('foo')
# assert AutoIdForDatum(DatumInContext(value={'id': 'bizzle'}, path=Fields('foo')), id_field='id').pseudopath == Fields('bizzle')
# assert AutoIdForDatum(DatumInContext(value={'id': 'bizzle'}, path=Fields('foo')),
# id_field='id',
# context=DatumInContext(value=3, path=This())).pseudopath == Fields('bizzle')
# assert (AutoIdForDatum(DatumInContext(value=3, path=Fields('foo')),
# id_field='id').in_context(DatumInContext(value={'id': 'bizzle'}, path=This()))
# ==
# AutoIdForDatum(DatumInContext(value=3, path=Fields('foo')),
# id_field='id',
# context=DatumInContext(value={'id': 'bizzle'}, path=This())))
# assert (AutoIdForDatum(DatumInContext(value=3, path=Fields('foo')),
# id_field='id',
# context=DatumInContext(value={"id": 'bizzle'},
# path=Fields('maggle'))).in_context(DatumInContext(value='whatever', path=Fields('miggle')))
# ==
# AutoIdForDatum(DatumInContext(value=3, path=Fields('foo')),
# id_field='id',
# context=DatumInContext(value={'id': 'bizzle'}, path=Fields('miggle').child(Fields('maggle')))))
# assert AutoIdForDatum(DatumInContext(value=3, path=Fields('foo')),
# id_field='id',
# context=DatumInContext(value={'id': 'bizzle'}, path=This())).pseudopath == Fields('bizzle').child(Fields('foo'))
class TestJsonPath(unittest.TestCase):
"""
Tests of the actual jsonpath functionality
"""
@classmethod
def setup_class(cls):
logging.basicConfig()
#
# Check that the data value returned is good
#
def check_cases(self, test_cases):
# Note that just manually building an AST would avoid this dep and isolate the tests, but that would suck a bit
# Also, we coerce iterables, etc, into the desired target type
for string, data, target in test_cases:
print('parse("%s").find(%s) =?= %s' % (string, data, target))
result = parse(string).find(data)
if isinstance(target, list):
assert [r.value for r in result] == target
elif isinstance(target, set):
assert set([r.value for r in result]) == target
else:
assert result.value == target
def test_fields_value(self):
jsonpath.auto_id_field = None
self.check_cases([ ('foo', {'foo': 'baz'}, ['baz']),
('foo,baz', {'foo': 1, 'baz': 2}, [1, 2]),
('@foo', {'@foo': 1}, [1]),
('*', {'foo': 1, 'baz': 2}, set([1, 2])) ])
jsonpath.auto_id_field = 'id'
self.check_cases([ ('*', {'foo': 1, 'baz': 2}, set([1, 2, '`this`'])) ])
def test_root_value(self):
jsonpath.auto_id_field = None
self.check_cases([
('$', {'foo': 'baz'}, [{'foo':'baz'}]),
('foo.$', {'foo': 'baz'}, [{'foo':'baz'}]),
('foo.$.foo', {'foo': 'baz'}, ['baz']),
])
def test_this_value(self):
jsonpath.auto_id_field = None
self.check_cases([
('`this`', {'foo': 'baz'}, [{'foo':'baz'}]),
('foo.`this`', {'foo': 'baz'}, ['baz']),
('foo.`this`.baz', {'foo': {'baz': 3}}, [3]),
])
def test_index_value(self):
self.check_cases([
('[0]', [42], [42]),
('[5]', [42], []),
('[2]', [34, 65, 29, 59], [29])
])
def test_slice_value(self):
self.check_cases([('[*]', [1, 2, 3], [1, 2, 3]),
('[*]', xrange(1, 4), [1, 2, 3]),
('[1:]', [1, 2, 3, 4], [2, 3, 4]),
('[:2]', [1, 2, 3, 4], [1, 2])])
# Funky slice hacks
self.check_cases([
('[*]', 1, [1]), # This is a funky hack
('[0:]', 1, [1]), # This is a funky hack
('[*]', {'foo':1}, [{'foo': 1}]), # This is a funky hack
('[*].foo', {'foo':1}, [1]), # This is a funky hack
])
def test_child_value(self):
self.check_cases([('foo.baz', {'foo': {'baz': 3}}, [3]),
('foo.baz', {'foo': {'baz': [3]}}, [[3]]),
('foo.baz.bizzle', {'foo': {'baz': {'bizzle': 5}}}, [5])])
def test_descendants_value(self):
self.check_cases([
('foo..baz', {'foo': {'baz': 1, 'bing': {'baz': 2}}}, [1, 2] ),
('foo..baz', {'foo': [{'baz': 1}, {'baz': 2}]}, [1, 2] ),
])
def test_parent_value(self):
self.check_cases([('foo.baz.`parent`', {'foo': {'baz': 3}}, [{'baz': 3}]),
('foo.`parent`.foo.baz.`parent`.baz.bizzle', {'foo': {'baz': {'bizzle': 5}}}, [5])])
def test_hyphen_key(self):
self.check_cases([('foo.bar-baz', {'foo': {'bar-baz': 3}}, [3]),
('foo.[bar-baz,blah-blah]', {'foo': {'bar-baz': 3, 'blah-blah':5}},
[3,5])])
self.assertRaises(JsonPathLexerError, self.check_cases,
[('foo.-baz', {'foo': {'-baz': 8}}, [8])])
#
# Check that the paths for the data are correct.
# FIXME: merge these tests with the above, since the inputs are the same anyhow
#
def check_paths(self, test_cases):
# Note that just manually building an AST would avoid this dep and isolate the tests, but that would suck a bit
# Also, we coerce iterables, etc, into the desired target type
for string, data, target in test_cases:
print('parse("%s").find(%s).paths =?= %s' % (string, data, target))
result = parse(string).find(data)
if isinstance(target, list):
assert [str(r.full_path) for r in result] == target
elif isinstance(target, set):
assert set([str(r.full_path) for r in result]) == target
else:
assert str(result.path) == target
def test_fields_paths(self):
jsonpath.auto_id_field = None
self.check_paths([ ('foo', {'foo': 'baz'}, ['foo']),
('foo,baz', {'foo': 1, 'baz': 2}, ['foo', 'baz']),
('*', {'foo': 1, 'baz': 2}, set(['foo', 'baz'])) ])
jsonpath.auto_id_field = 'id'
self.check_paths([ ('*', {'foo': 1, 'baz': 2}, set(['foo', 'baz', 'id'])) ])
def test_root_paths(self):
jsonpath.auto_id_field = None
self.check_paths([
('$', {'foo': 'baz'}, ['$']),
('foo.$', {'foo': 'baz'}, ['$']),
('foo.$.foo', {'foo': 'baz'}, ['foo']),
])
def test_this_paths(self):
jsonpath.auto_id_field = None
self.check_paths([
('`this`', {'foo': 'baz'}, ['`this`']),
('foo.`this`', {'foo': 'baz'}, ['foo']),
('foo.`this`.baz', {'foo': {'baz': 3}}, ['foo.baz']),
])
def test_index_paths(self):
self.check_paths([('[0]', [42], ['[0]']),
('[2]', [34, 65, 29, 59], ['[2]'])])
def test_slice_paths(self):
self.check_paths([ ('[*]', [1, 2, 3], ['[0]', '[1]', '[2]']),
('[1:]', [1, 2, 3, 4], ['[1]', '[2]', '[3]']) ])
def test_child_paths(self):
self.check_paths([('foo.baz', {'foo': {'baz': 3}}, ['foo.baz']),
('foo.baz', {'foo': {'baz': [3]}}, ['foo.baz']),
('foo.baz.bizzle', {'foo': {'baz': {'bizzle': 5}}}, ['foo.baz.bizzle'])])
def test_descendants_paths(self):
self.check_paths([('foo..baz', {'foo': {'baz': 1, 'bing': {'baz': 2}}}, ['foo.baz', 'foo.bing.baz'] )])
#
# Check the "auto_id_field" feature
#
def test_fields_auto_id(self):
jsonpath.auto_id_field = "id"
self.check_cases([ ('foo.id', {'foo': 'baz'}, ['foo']),
('foo.id', {'foo': {'id': 'baz'}}, ['baz']),
('foo,baz.id', {'foo': 1, 'baz': 2}, ['foo', 'baz']),
('*.id',
{'foo':{'id': 1},
'baz': 2},
set(['1', 'baz'])) ])
def test_root_auto_id(self):
jsonpath.auto_id_field = 'id'
self.check_cases([
('$.id', {'foo': 'baz'}, ['$']), # This is a wonky case that is not that interesting
('foo.$.id', {'foo': 'baz', 'id': 'bizzle'}, ['bizzle']),
('foo.$.baz.id', {'foo': 4, 'baz': 3}, ['baz']),
])
def test_this_auto_id(self):
jsonpath.auto_id_field = 'id'
self.check_cases([
('id', {'foo': 'baz'}, ['`this`']), # This is, again, a wonky case that is not that interesting
('foo.`this`.id', {'foo': 'baz'}, ['foo']),
('foo.`this`.baz.id', {'foo': {'baz': 3}}, ['foo.baz']),
])
def test_index_auto_id(self):
jsonpath.auto_id_field = "id"
self.check_cases([('[0].id', [42], ['[0]']),
('[2].id', [34, 65, 29, 59], ['[2]'])])
def test_slice_auto_id(self):
jsonpath.auto_id_field = "id"
self.check_cases([ ('[*].id', [1, 2, 3], ['[0]', '[1]', '[2]']),
('[1:].id', [1, 2, 3, 4], ['[1]', '[2]', '[3]']) ])
def test_child_auto_id(self):
jsonpath.auto_id_field = "id"
self.check_cases([('foo.baz.id', {'foo': {'baz': 3}}, ['foo.baz']),
('foo.baz.id', {'foo': {'baz': [3]}}, ['foo.baz']),
('foo.baz.id', {'foo': {'id': 'bizzle', 'baz': 3}}, ['bizzle.baz']),
('foo.baz.id', {'foo': {'baz': {'id': 'hi'}}}, ['foo.hi']),
('foo.baz.bizzle.id', {'foo': {'baz': {'bizzle': 5}}}, ['foo.baz.bizzle'])])
def test_descendants_auto_id(self):
jsonpath.auto_id_field = "id"
self.check_cases([('foo..baz.id',
{'foo': {
'baz': 1,
'bing': {
'baz': 2
}
} },
['foo.baz',
'foo.bing.baz'] )])
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