Added basic model unit tests

Author: Megh-Thakkar

tests/__init__.py

@@ -0,0 +1,57 @@
+from django.test import TestCase
+
+# Tests for models
+
+from main.models import *
+import re
+
+class ComponentModelTest(TestCase):
+
+	@classmethod
+	def setUpTestData(cls):
+		# Called initially when test is executed, create object to be used by test methods
+		Component.objects.create(name='@test/component', author='test_author')
+
+	# Test max length of name
+	def test_name_max_length(self):
+		component = Component.objects.get(id=1)
+		max_length = component._meta.get_field('name').max_length
+		self.assertEquals(max_length, 100)
+
+	# Test if url_name is a Slug Field
+	def test_url_name(self):
+		component = Component.objects.get(id=1)
+		url_name = component.url_name
+		self.assertTrue(re.match('[-\w]+', url_name))
+
+	# Test max length of author name
+	def test_author_max_length(self):
+		component = Component.objects.get(id=1)
+		max_length = component._meta.get_field('author').max_length
+		self.assertEquals(max_length, 200)
+
+class TagModelTest(TestCase):
+
+	@classmethod
+	def setUpTestData(cls):
+		# Called initially when test is executed, create object to be used by test methods
+		Tag.objects.create(name='test_tag')
+
+	# Test max length of name
+	def test_name_max_length(self):
+		tag = Tag.objects.get(id=1)
+		max_length = tag._meta.get_field('name').max_length
+		self.assertEquals(max_length, 50)
+
+class ContributorModelTest(TestCase):
+
+	@classmethod
+	def setUpTestData(cls):
+		# Called initially when test is executed, create object to be used by test methods
+		Contributor.objects.create(username='test_contributor')
+
+	# Test max length of name
+	def test_name_max_length(self):
+		contributor = Contributor.objects.get(id=1)
+		max_length = contributor._meta.get_field('username').max_length
+		self.assertEquals(max_length, 100)