def test_set_target(self):
old_target = Text('hi')
viewport = Viewport(old_target, width=100, height=100)
new_target = Text('bye')
viewport.target = new_target
self.assertIs(new_target, viewport.target)
self.assertIs(viewport, new_target.parent)
self.assertIsNone(old_target.parent)
def test_set_target(self):
old_target = Text('hi')
viewport = Viewport(old_target, width=100, height=100)
new_target = Text('bye')
viewport.target = new_target
self.assertIs(new_target, viewport.target)
self.assertIs(viewport, new_target.parent)
self.assertIsNone(old_target.parent)
def test_dimensions_must_be_numeric(self):
viewport = Viewport(Text('hi'), width=200, height=100)
with self.assertRaises(TypeError):
viewport.width = 'a'
with self.assertRaises(TypeError):
viewport.height = 'a'
self.assertEqual(200, viewport.width)
self.assertEqual(100, viewport.height)
def test_construction_requires_dimensions(self):
with self.assertRaises(TypeError):
Viewport(Text('hi'))
with self.assertRaises(TypeError):
Viewport(Text('hi'), width=100)
with self.assertRaises(TypeError):
Viewport(Text('hi'), height=100)
def test_dimensions_must_be_numeric(self):
viewport = Viewport(Text('hi'), width=200, height=100)
with self.assertRaises(TypeError):
viewport.width = 'a'
with self.assertRaises(TypeError):
viewport.height = 'a'
self.assertEqual(200, viewport.width)
self.assertEqual(100, viewport.height)
def test_dimensions_are_gettable_and_settable(self):
viewport = Viewport(Text('hi'), width=200, height=100)
self.assertEqual(200, viewport.width)
self.assertEqual(100, viewport.height)
viewport.width = 50
self.assertEqual(50, viewport.width)
viewport.height = 70
self.assertEqual(70, viewport.height)
def test_dimensions_are_gettable_and_settable(self):
viewport = Viewport(Text('hi'), width=200, height=100)
self.assertEqual(200, viewport.width)
self.assertEqual(100, viewport.height)
viewport.width = 50
self.assertEqual(50, viewport.width)
viewport.height = 70
self.assertEqual(70, viewport.height)
def test_set_target__marks_dirty(self):
viewport = Viewport(Text('hi'), width=100, height=100)
with self.assertMarksDirty(viewport):
viewport.target = Text('bye')
def test_set_dimensions__marks_dirty(self):
viewport = Viewport(Text('hi'), width=100, height=100)
with self.assertMarksDirty(viewport):
viewport.width = 200
with self.assertMarksDirty(viewport):
viewport.height = 200
def test_tag(self):
viewport = Viewport(Text('Hi'), width=50, height=60)
self.assertHTMLLike(
'<div style="height: 60; overflow: scroll; width: 50"><span>Hi</span></div>',
viewport)
def test_set_target__marks_dirty(self):
viewport = Viewport(Text('hi'), width=100, height=100)
with self.assertMarksDirty(viewport):
viewport.target = Text('bye')
def test_set_dimensions__marks_dirty(self):
viewport = Viewport(Text('hi'), width=100, height=100)
with self.assertMarksDirty(viewport):
viewport.width = 200
with self.assertMarksDirty(viewport):
viewport.height = 200
def test_construction(self):
viewport = Viewport(Text('hi'), width=100, height=200)
def test_construction_requires_positive_dimensions(self):
with self.assertRaises(ValueError):
Viewport(Text('hi'), width=-10, height=200)
with self.assertRaises(ValueError):
Viewport(Text('hi'), width=200, height=-10)
def test_construction_requires_numeric_dimensions(self):
Viewport(Text('hi'), width=100.0, height=200)
with self.assertRaises(TypeError):
Viewport(Text('hi'), width='a', height=200)
def test_construction_requires_element_child(self):
with self.assertRaises(TypeError):
Viewport(width=100, height=200)
with self.assertRaises(TypeError):
Viewport(0, width=100, height=200)