#!/usr/bin/env python # -*- coding: utf-8 -*- import doctest import unittest import sys import copy from jsonpointer import resolve_pointer, EndOfList, JsonPointerException, \ JsonPointer, set_pointer class SpecificationTests(unittest.TestCase): """ Tests all examples from the JSON Pointer specification """ def test_example(self): doc = { "foo": ["bar", "baz"], "": 0, "a/b": 1, "c%d": 2, "e^f": 3, "g|h": 4, "i\\j": 5, "k\"l": 6, " ": 7, "m~n": 8 } self.assertEqual(resolve_pointer(doc, ""), doc) self.assertEqual(resolve_pointer(doc, "/foo"), ["bar", "baz"]) self.assertEqual(resolve_pointer(doc, "/foo/0"), "bar") self.assertEqual(resolve_pointer(doc, "/"), 0) self.assertEqual(resolve_pointer(doc, "/a~1b"), 1) self.assertEqual(resolve_pointer(doc, "/c%d"), 2) self.assertEqual(resolve_pointer(doc, "/e^f"), 3) self.assertEqual(resolve_pointer(doc, "/g|h"), 4) self.assertEqual(resolve_pointer(doc, "/i\\j"), 5) self.assertEqual(resolve_pointer(doc, "/k\"l"), 6) self.assertEqual(resolve_pointer(doc, "/ "), 7) self.assertEqual(resolve_pointer(doc, "/m~0n"), 8) def test_eol(self): doc = { "foo": ["bar", "baz"] } self.assertTrue(isinstance(resolve_pointer(doc, "/foo/-"), EndOfList)) self.assertRaises(JsonPointerException, resolve_pointer, doc, "/foo/-/1") def test_round_trip(self): paths = [ "", "/foo", "/foo/0", "/", "/a~1b", "/c%d", "/e^f", "/g|h", "/i\\j", "/k\"l", "/ ", "/m~0n", ] for path in paths: ptr = JsonPointer(path) self.assertEqual(path, ptr.path) parts = ptr.parts new_ptr = JsonPointer.from_parts(parts) self.assertEqual(ptr, new_ptr) class ComparisonTests(unittest.TestCase): def setUp(self): self.ptr1 = JsonPointer("/a/b/c") self.ptr2 = JsonPointer("/a/b") self.ptr3 = JsonPointer("/b/c") def test_eq_hash(self): p1 = JsonPointer("/something/1/b") p2 = JsonPointer("/something/1/b") p3 = JsonPointer("/something/1.0/b") self.assertEqual(p1, p2) self.assertNotEqual(p1, p3) self.assertNotEqual(p2, p3) self.assertEqual(hash(p1), hash(p2)) self.assertNotEqual(hash(p1), hash(p3)) self.assertNotEqual(hash(p2), hash(p3)) # a pointer compares not-equal to objects of other types self.assertFalse(p1 == "/something/1/b") def test_contains(self): self.assertTrue(self.ptr1.contains(self.ptr2)) self.assertTrue(self.ptr1.contains(self.ptr1)) self.assertFalse(self.ptr1.contains(self.ptr3)) def test_contains_magic(self): self.assertTrue(self.ptr2 in self.ptr1) self.assertTrue(self.ptr1 in self.ptr1) self.assertFalse(self.ptr3 in self.ptr1) class WrongInputTests(unittest.TestCase): def test_no_start_slash(self): # an exception is raised when the pointer string does not start with / self.assertRaises(JsonPointerException, JsonPointer, 'some/thing') def test_invalid_index(self): # 'a' is not a valid list index doc = [0, 1, 2] self.assertRaises(JsonPointerException, resolve_pointer, doc, '/a') def test_oob(self): # this list does not have 10 members doc = [0, 1, 2] self.assertRaises(JsonPointerException, resolve_pointer, doc, '/10') class ToLastTests(unittest.TestCase): def test_empty_path(self): doc = {'a': [1, 2, 3]} ptr = JsonPointer('') last, nxt = ptr.to_last(doc) self.assertEqual(doc, last) self.assertTrue(nxt is None) def test_path(self): doc = {'a': [{'b': 1, 'c': 2}, 5]} ptr = JsonPointer('/a/0/b') last, nxt = ptr.to_last(doc) self.assertEqual(last, {'b': 1, 'c': 2}) self.assertEqual(nxt, 'b') class SetTests(unittest.TestCase): def test_set(self): doc = { "foo": ["bar", "baz"], "": 0, "a/b": 1, "c%d": 2, "e^f": 3, "g|h": 4, "i\\j": 5, "k\"l": 6, " ": 7, "m~n": 8 } origdoc = copy.deepcopy(doc) # inplace=False newdoc = set_pointer(doc, "/foo/1", "cod", inplace=False) self.assertEqual(resolve_pointer(newdoc, "/foo/1"), "cod") newdoc = set_pointer(doc, "/", 9, inplace=False) self.assertEqual(resolve_pointer(newdoc, "/"), 9) newdoc = set_pointer(doc, "/fud", {}, inplace=False) newdoc = set_pointer(newdoc, "/fud/gaw", [1, 2, 3], inplace=False) self.assertEqual(resolve_pointer(newdoc, "/fud"), {'gaw' : [1, 2, 3]}) newdoc = set_pointer(doc, "", 9, inplace=False) self.assertEqual(newdoc, 9) self.assertEqual(doc, origdoc) # inplace=True set_pointer(doc, "/foo/1", "cod") self.assertEqual(resolve_pointer(doc, "/foo/1"), "cod") set_pointer(doc, "/", 9) self.assertEqual(resolve_pointer(doc, "/"), 9) self.assertRaises(JsonPointerException, set_pointer, doc, "/fud/gaw", 9) set_pointer(doc, "/fud", {}) set_pointer(doc, "/fud/gaw", [1, 2, 3] ) self.assertEqual(resolve_pointer(doc, "/fud"), {'gaw' : [1, 2, 3]}) self.assertRaises(JsonPointerException, set_pointer, doc, "", 9) class AltTypesTests(unittest.TestCase): def test_alttypes(self): JsonPointer.alttypes = True class Node(object): def __init__(self, name, parent=None): self.name = name self.parent = parent self.left = None self.right = None def set_left(self, node): node.parent = self self.left = node def set_right(self, node): node.parent = self self.right = node def __getitem__(self, key): if key == 'left': return self.left if key == 'right': return self.right raise KeyError("Only left and right supported") def __setitem__(self, key, val): if key == 'left': return self.set_left(val) if key == 'right': return self.set_right(val) raise KeyError("Only left and right supported: %s" % key) root = Node('root') root.set_left(Node('a')) root.left.set_left(Node('aa')) root.left.set_right(Node('ab')) root.set_right(Node('b')) root.right.set_left(Node('ba')) root.right.set_right(Node('bb')) self.assertEqual(resolve_pointer(root, '/left').name, 'a') self.assertEqual(resolve_pointer(root, '/left/right').name, 'ab') self.assertEqual(resolve_pointer(root, '/right').name, 'b') self.assertEqual(resolve_pointer(root, '/right/left').name, 'ba') newroot = set_pointer(root, '/left/right', Node('AB'), inplace=False) self.assertEqual(resolve_pointer(root, '/left/right').name, 'ab') self.assertEqual(resolve_pointer(newroot, '/left/right').name, 'AB') set_pointer(root, '/left/right', Node('AB')) self.assertEqual(resolve_pointer(root, '/left/right').name, 'AB') suite = unittest.TestSuite() suite.addTest(unittest.makeSuite(SpecificationTests)) suite.addTest(unittest.makeSuite(ComparisonTests)) suite.addTest(unittest.makeSuite(WrongInputTests)) suite.addTest(unittest.makeSuite(ToLastTests)) suite.addTest(unittest.makeSuite(SetTests)) suite.addTest(unittest.makeSuite(AltTypesTests)) modules = ['jsonpointer'] for module in modules: m = __import__(module, fromlist=[module]) suite.addTest(doctest.DocTestSuite(m)) runner = unittest.TextTestRunner(verbosity=1) result = runner.run(suite) if not result.wasSuccessful(): sys.exit(1)