apps/dvcs/tests/__init__.py

   1 # -*- coding: utf-8 -*-
   2 from __future__ import unicode_literals
   3 from nose.tools import *
   4 from django.test import TestCase
   5 from dvcs.models import Document
   6
   7
   8 class ADocument(Document):
   9     class Meta:
  10         app_label = 'dvcs'
  11
  12
  13 class DocumentModelTests(TestCase):
  14
  15     def assertTextEqual(self, given, expected):
  16         return self.assertEqual(
  17             given, expected,
  18             "Expected '''%s'''\n differs from text: '''%s'''" % (expected, given))
  19
  20     def test_empty_file(self):
  21         doc = ADocument.objects.create()
  22         self.assertTextEqual(doc.materialize(), "")
  23
  24     def test_single_commit(self):
  25         doc = ADocument.objects.create()
  26         doc.commit(text="Ala ma kota", description="Commit #1")
  27         self.assertTextEqual(doc.materialize(), "Ala ma kota")
  28
  29     def test_chained_commits(self):
  30         doc = ADocument.objects.create()
  31         text1 = """
  32             Line #1
  33             Line #2 is cool
  34         """
  35         text2 = """
  36             Line #1
  37             Line #2 is hot
  38         """
  39         text3 = """
  40             Line #1
  41             ... is hot
  42             Line #3 ate Line #2
  43         """
  44
  45         c1 = doc.commit(description="Commit #1", text=text1)
  46         c2 = doc.commit(description="Commit #2", text=text2)
  47         c3 = doc.commit(description="Commit #3", text=text3)
  48
  49         self.assertTextEqual(doc.materialize(), text3)
  50         self.assertTextEqual(doc.materialize(change=c3), text3)
  51         self.assertTextEqual(doc.materialize(change=c2), text2)
  52         self.assertTextEqual(doc.materialize(change=c1), text1)
  53
  54     def test_parallel_commit_noconflict(self):
  55         doc = ADocument.objects.create()
  56         text1 = """
  57             Line #1
  58             Line #2
  59         """
  60         text2 = """
  61             Line #1 is hot
  62             Line #2
  63         """
  64         text3 = """
  65             Line #1
  66             Line #2
  67             Line #3
  68         """
  69         text_merged = """
  70             Line #1 is hot
  71             Line #2
  72             Line #3
  73         """
  74
  75         base = doc.commit(description="Commit #1", text=text1)
  76         c1 = doc.commit(description="Commit #2", text=text2)
  77         commits = doc.change_set.count()
  78         c2 = doc.commit(description="Commit #3", text=text3, parent=base)
  79         self.assertEqual(
  80             doc.change_set.count(), commits + 2,
  81             "Parallel commits should create an additional merge commit")
  82         self.assertTextEqual(doc.materialize(), text_merged)
  83
  84     def test_parallel_commit_conflict(self):
  85         doc = ADocument.objects.create()
  86         text1 = """
  87             Line #1
  88             Line #2
  89             Line #3
  90         """
  91         text2 = """
  92             Line #1
  93             Line #2 is hot
  94             Line #3
  95         """
  96         text3 = """
  97             Line #1
  98             Line #2 is cool
  99             Line #3
 100         """
 101         text_merged = """
 102             Line #1
 103 <<<<<<<
 104             Line #2 is hot
 105 =======
 106             Line #2 is cool
 107 >>>>>>>
 108             Line #3
 109         """
 110         base = doc.commit(description="Commit #1", text=text1)
 111         c1 = doc.commit(description="Commit #2", text=text2)
 112         commits = doc.change_set.count()
 113         c2 = doc.commit(description="Commit #3", text=text3, parent=base)
 114         self.assertEqual(
 115             doc.change_set.count(), commits + 2,
 116             "Parallel commits should create an additional merge commit")
 117         self.assertTextEqual(doc.materialize(), text_merged)
 118
 119     def test_multiple_parallel_commits(self):
 120         text_a1 = """
 121             Line #1
 122
 123             Line #2
 124
 125             Line #3
 126             """
 127         text_a2 = """
 128             Line #1 *
 129
 130             Line #2
 131
 132             Line #3
 133             """
 134         text_b1 = """
 135             Line #1
 136
 137             Line #2 **
 138
 139             Line #3
 140             """
 141         text_c1 = """
 142             Line #1
 143
 144             Line #2
 145
 146             Line #3 ***
 147             """
 148         text_merged = """
 149             Line #1 *
 150
 151             Line #2 **
 152
 153             Line #3 ***
 154             """
 155
 156         doc = ADocument.objects.create()
 157         c1 = doc.commit(description="Commit A1", text=text_a1)
 158         c2 = doc.commit(description="Commit A2", text=text_a2, parent=c1)
 159         c3 = doc.commit(description="Commit B1", text=text_b1, parent=c1)
 160         c4 = doc.commit(description="Commit C1", text=text_c1, parent=c1)
 161         self.assertTextEqual(doc.materialize(), text_merged)
 162
 163     def test_prepend_history(self):
 164         doc1 = ADocument.objects.create()
 165         doc2 = ADocument.objects.create()
 166         doc1.commit(text='Commit 1')
 167         doc2.commit(text='Commit 2')
 168         doc2.prepend_history(doc1)
 169         self.assertEqual(ADocument.objects.all().count(), 1)
 170         self.assertTextEqual(doc2.at_revision(1).materialize(), 'Commit 1')
 171         self.assertTextEqual(doc2.materialize(), 'Commit 2')
 172
 173     def test_prepend_to_self(self):
 174         doc = ADocument.objects.create()
 175         doc.commit(text='Commit 1')
 176         with self.assertRaises(AssertionError):
 177             doc.prepend_history(doc)
 178         self.assertTextEqual(doc.materialize(), 'Commit 1')