# -*- coding: utf-8 -*-
"""
PyUnit unit tests
"""
import unittest
import json
import json_diff
from StringIO import StringIO
SIMPLE_OLD = u"""
{
"a": 1,
"b": true,
"c": "Janošek"
}
"""
SIMPLE_NEW = u"""
{
"b": false,
"c": "Maruška",
"d": "přidáno"
}
"""
SIMPLE_DIFF = u"""
{
"_append": {
"d": "přidáno"
},
"_remove": {
"a": 1
},
"_update": {
"c": "Maruška",
"b": false
}
}
"""
NESTED_OLD = u"""
{
"a": 1,
"b": 2,
"son": {
"name": "Janošek"
}
}
"""
NESTED_NEW = u"""
{
"a": 2,
"c": 3,
"daughter": {
"name": "Maruška"
}
}
"""
NESTED_DIFF = u"""
{
"_append": {
"c": 3,
"daughter": {
"name": "Maruška"
}
},
"_remove": {
"b": 2,
"son": {
"name": "Janošek"
}
},
"_update": {
"a": 2
}
}
"""
class TestHappyPath(unittest.TestCase):
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" %
(str({}), str(diff)))
def test_simple(self):
diffator = json_diff.Comparator(StringIO(SIMPLE_OLD), StringIO(SIMPLE_NEW))
diff = diffator.compare_dicts()
expected = json.loads(SIMPLE_DIFF)
self.assertEqual(diff, expected, "All-scalar objects diff." +
"\n\nexpected = %s\n\nobserved = %s" %
(str(expected), str(diff)))
def test_realFile(self):
diffator = json_diff.Comparator(open("test/old.json"), open("test/new.json"))
diff = diffator.compare_dicts()
expected = json.load(open("test/diff.json"))
self.assertEqual(diff, expected, "Simply nested objects (from file) diff." +
"\n\nexpected = %s\n\nobserved = %s" %
(str(expected), str(diff)))
def test_nested(self):
diffator = json_diff.Comparator(StringIO(NESTED_OLD), StringIO(NESTED_NEW))
diff = diffator.compare_dicts()
expected = json.loads(NESTED_DIFF)
self.assertEqual(diff, expected, "Nested objects diff. " +
"\n\nexpected = %s\n\nobserved = %s" %
(str(expected), str(diff)))
def test_nested_formatted(self):
diffator = json_diff.Comparator(open("test/old.json"), open("test/new.json"))
diff = "\n".join([line.strip() \
for line in str(json_diff.HTMLFormatter(diffator.compare_dicts())).split("\n")])
expected = "\n".join([line.strip() for line in open("test/nested_html_output.html").readlines()])
self.assertEqual(diff, expected, "Simply nested objects (from file) diff formatted as HTML." +
"\n\nexpected = %s\n\nobserved = %s" %
(expected, diff))
def test_large_with_exclusions(self):
diffator = json_diff.Comparator(open("test/old-testing-data.json"),
open("test/new-testing-data.json"), ('command', 'time'))
diff = diffator.compare_dicts()
expected = json.load(open("test/diff-testing-data.json"))
self.assertEqual(diff, expected, "Large objects with exclusions diff." +
"\n\nexpected = %s\n\nobserved = %s" %
(str(expected), str(diff)))
NO_JSON_OLD = u"""
THIS IS NOT A JSON STRING
"""
NO_JSON_NEW = u"""
AND THIS NEITHER
"""
class TestSadPath(unittest.TestCase):
def test_no_JSON(self):
self.assertRaises(json_diff.BadJSONError,
json_diff.Comparator, StringIO(NO_JSON_OLD), StringIO(NO_JSON_NEW))
if __name__ == "__main__":
unittest.main()
