# -*- coding: utf-8 -*- """ PyUnit unit tests """ import unittest import sys 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, \ NESTED_DIFF_IGNORING, \ SIMPLE_ARRAY_OLD, SIMPLE_DIFF, SIMPLE_DIFF_HTML, SIMPLE_NEW, SIMPLE_OLD class OptionsClass(object): def __init__(self, inc=None, exc=None, ign=None): self.exclude = exc self.include = inc self.ignore_append = ign class OurTestCase(unittest.TestCase): def _run_test(self, oldf, newf, difff, msg="", opts=None): diffator = json_diff.Comparator(oldf, newf, opts) 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="", opts=None): self._run_test(StringIO(olds), StringIO(news), StringIO(diffs), msg, opts) def _run_test_formatted(self, oldf, newf, difff, msg="", opts=None): diffator = json_diff.Comparator(oldf, newf, opts) 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.", OptionsClass(exc=["nome"])) def test_nested_included(self): self._run_test_strings(NESTED_OLD, NESTED_NEW, NESTED_DIFF_INCL, "Nested objects diff.", OptionsClass(inc=["nome"])) def test_nested_ignoring_append(self): self._run_test_strings(NESTED_OLD, NESTED_NEW, NESTED_DIFF_IGNORING, "Nested objects diff.", OptionsClass(ign=True)) 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_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).", OptionsClass(inc=["result"])) # 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.") class TestMainArgsMgmt(unittest.TestCase): def test_args_help(self): save_stdout = StringIO() sys.stdout = save_stdout try: json_diff.main(["./test_json_diff.py", "-h"]) except SystemExit: save_stdout.seek(0) sys.stdout = sys.__stdout__ expected = "Usage:" observed = save_stdout.read() self.assertEquals(observed[:len(expected)], expected, "testing -h usage message") if __name__ == "__main__": unittest.main()