src/dvcs/tests/__init__.py

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