def test_create_update_times(self):
lesson = Lesson()
lesson.title = "Lesson Title"
lesson.text = "Lesson Text"
lesson.save()
lesson.full_clean()
# compare created time to modified time
created_ms = lesson.created.microsecond
modified_ms = lesson.modified.microsecond
self.assertTrue(created_ms < modified_ms)
sleep(1)
# modify lesson
lesson.text = "new text"
lesson.save()
# assert that the modify times don't match
self.assertNotAlmostEqual(
created_ms,
lesson.modified.microsecond,
delta=95
)
self.assertNotEqual(
modified_ms,
lesson.modified.microsecond
)
def test_slug_is_set(self):
l = Lesson()
l.title = "Lesson Title"
l.text = "Lesson Text"
l.save()
l.full_clean()
self.assertEqual(l.slug, 'lesson-title')
def test_published_attribute(self):
l = Lesson()
l.title = "Lesson Title"
l.text = "Lesson Text"
l.save()
l.full_clean()
self.assertFalse(l.published)
l.published = True
l.save()
l.full_clean()
self.assertTrue(l.published)
def test_saving_and_retreiving_lessons(self):
first_lesson = Lesson()
first_lesson.title = "Title of first lesson"
first_lesson.text = "Text of first lesson"
first_lesson.save()
first_lesson.full_clean()
second_lesson = Lesson()
second_lesson.title = "Titulo de la segunda lesson"
second_lesson.text = "Texto de la segunda"
second_lesson.save()
second_lesson.full_clean()
saved_lessons = Lesson.objects.all()
self.assertEqual(saved_lessons.count(), 2)
recent_saved_lesson = saved_lessons[0]
oldest_saved_lesson = saved_lessons[1]
self.assertEqual(
oldest_saved_lesson.title,
first_lesson.title
)
self.assertEqual(
oldest_saved_lesson.text,
first_lesson.text
)
self.assertEqual(
recent_saved_lesson.title,
second_lesson.title
)
self.assertEqual(
recent_saved_lesson.text,
second_lesson.text
)
def test_cannot_save_empty_lesson(self):
lesson = Lesson(title="listo", text='')
with self.assertRaises(ValidationError):
lesson.save()
lesson.full_clean()