#!/usr/bin/env python
# -*- coding: utf-8 -*-

import doctest
import unittest
import sys
from jsonpointer import resolve_pointer, EndOfList, JsonPointerException, \
         JsonPointer

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")


class ComparisonTests(unittest.TestCase):

   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")


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')


suite = unittest.TestSuite()
suite.addTest(unittest.makeSuite(SpecificationTests))
suite.addTest(unittest.makeSuite(ComparisonTests))
suite.addTest(unittest.makeSuite(WrongInputTests))

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)