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# -*- coding: utf-8 -*-
"""
PyUnit unit tests
"""
import unittest
try:
import json
except ImportError:
import simplejson as json
import json_diff
from StringIO import StringIO
import codecs
from test_strings import ARRAY_DIFF, ARRAY_NEW, ARRAY_OLD, \
NESTED_DIFF, NESTED_DIFF_EXCL, NESTED_DIFF_INCL, NESTED_NEW, NESTED_OLD, \
NO_JSON_NEW, NO_JSON_OLD, SIMPLE_ARRAY_DIFF, SIMPLE_ARRAY_NEW, \
SIMPLE_ARRAY_OLD, SIMPLE_DIFF, SIMPLE_DIFF_HTML, SIMPLE_NEW, SIMPLE_OLD
class OurTestCase(unittest.TestCase):
def _run_test(self, oldf, newf, difff, msg="", inc=(), exc=()):
diffator = json_diff.Comparator(oldf, newf, inc, exc)
diff = diffator.compare_dicts()
expected = json.load(difff)
self.assertEqual(json.dumps(diff, sort_keys=True), json.dumps(expected, sort_keys=True),
msg + "\n\nexpected = %s\n\nobserved = %s" %
(json.dumps(expected, sort_keys=True, indent=4, ensure_ascii=False),
json.dumps(diff, sort_keys=True, indent=4, ensure_ascii=False)))
def _run_test_strings(self, olds, news, diffs, msg="", inc=(), exc=()):
self._run_test(StringIO(olds), StringIO(news), StringIO(diffs), msg, inc, exc)
def _run_test_formatted(self, oldf, newf, difff, msg=""):
diffator = json_diff.Comparator(oldf, newf)
diff = ("\n".join([line.strip() \
for line in unicode( \
json_diff.HTMLFormatter(diffator.compare_dicts())).split("\n")])).strip()
expected = ("\n".join([line.strip() for line in difff if line])).strip()
self.assertEqual(diff, expected, msg +
"\n\nexpected = %s\n\nobserved = %s" %
(expected, diff))
class TestBasicJSON(OurTestCase):
def test_empty(self):
diffator = json_diff.Comparator({}, {})
diff = diffator.compare_dicts()
self.assertEqual(json.dumps(diff).strip(), "{}",
"Empty objects diff.\n\nexpected = %s\n\nobserved = %s" %
({}, diff))
def test_null(self):
self._run_test_strings('{"a": null}', '{"a": null}',
'{}', "Nulls")
def test_null_to_string(self):
self._run_test_strings('{"a": null}', '{"a": "something"}',
'{"_update": {"a": "something"}}', "Null changed to string")
def test_boolean(self):
self._run_test_strings('{"a": true}', '{"a": false}',
'{"_update": {"a": false}}', "Booleans")
def test_integer(self):
self._run_test_strings(u'{"a": 1}', '{"a": 2}',
u'{"_update": {"a": 2}}', "Integers")
def test_float(self):
self._run_test_strings(u'{"a": 1.0}', '{"a": 1.1}',
u'{"_update": {"a": 1.1}}', "Floats")
def test_int_to_float(self):
self._run_test_strings(u'{"a": 1}', '{"a": 1.0}',
u'{"_update": {"a": 1.0}}', "Integer changed to float")
def test_simple(self):
self._run_test_strings(SIMPLE_OLD, SIMPLE_NEW, SIMPLE_DIFF,
"All-scalar objects diff.")
def test_simple_formatted(self):
self._run_test_formatted(StringIO(SIMPLE_OLD), StringIO(SIMPLE_NEW),
StringIO(SIMPLE_DIFF_HTML),
"All-scalar objects diff (formatted).")
def test_simple_array(self):
self._run_test_strings(SIMPLE_ARRAY_OLD, SIMPLE_ARRAY_NEW,
SIMPLE_ARRAY_DIFF, "Simple array objects diff.")
def test_another_array(self):
self._run_test_strings(ARRAY_OLD, ARRAY_NEW,
ARRAY_DIFF, "Array objects diff.")
class TestHappyPath(OurTestCase):
def test_realFile(self):
self._run_test(open("test/old.json"), open("test/new.json"),
open("test/diff.json"), "Simply nested objects (from file) diff.")
def test_nested(self):
self._run_test_strings(NESTED_OLD, NESTED_NEW, NESTED_DIFF, "Nested objects diff.")
def test_nested_formatted(self):
self._run_test_formatted(open("test/old.json"), open("test/new.json"),
codecs.open("test/nested_html_output.html", "r", "utf-8"),
"Simply nested objects (from file) diff formatted as HTML.")
def test_nested_excluded(self):
self._run_test_strings(NESTED_OLD, NESTED_NEW, NESTED_DIFF_EXCL,
"Nested objects diff with exclusion.", exc=("nome",))
def test_nested_included(self):
self._run_test_strings(NESTED_OLD, NESTED_NEW, NESTED_DIFF_INCL,
"Nested objects diff.", inc=("nome",))
class TestadPath(OurTestCase):
def test_no_JSON(self):
self.assertRaises(json_diff.BadJSONError,
json_diff.Comparator, StringIO(NO_JSON_OLD), StringIO(NO_JSON_NEW))
def test_bad_JSON_no_hex(self):
self.assertRaises(json_diff.BadJSONError, self._run_test_strings,
u'{"a": 0x1}', '{"a": 2}', u'{"_update": {"a": 2}}',
"Hex numbers not supported")
def test_bad_JSON_no_octal(self):
self.assertRaises(json_diff.BadJSONError, self._run_test_strings,
u'{"a": 01}', '{"a": 2}', u'{"_update": {"a": 2}}',
"Octal numbers not supported")
class TestPiglitData(OurTestCase):
# def test_piglit_results(self):
# self._run_test(open("test/old-testing-data.json"), open("test/new-testing-data.json"),
# open("test/diff-testing-data.json"), "Large piglit results diff.")
def test_piglit_result_only(self):
self._run_test(open("test/old-testing-data.json"), open("test/new-testing-data.json"),
open("test/diff-result-only-testing-data.json"),
"Large piglit reports diff (just resume field).", inc=('result',))
if __name__ == "__main__":
unittest.main()
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