def test_vdict_init():
"""Test the VDict instantiation."""
# Test empty VDict
VDict()
# Test VDict made from list of pairs
VDict([("a", VMobject()), ("b", VMobject()), ("c", VMobject())])
# Test VDict made from a python dict
VDict({"a": VMobject(), "b": VMobject(), "c": VMobject()})
# Test VDict made using zip
VDict(zip(["a", "b", "c"], [VMobject(), VMobject(), VMobject()]))
# If the value is of type Mobject, must raise a TypeError
with pytest.raises(TypeError):
VDict({"a": Mobject()})
def get_node(self, value) -> VDict:
node = VDict({
'node': Circle(radius=self.radius),
'label': Text(value)
})
node['label'].scale(self.font_scale)
return node
def test_vdict_remove():
"""Test the VDict remove method."""
obj = VDict([("a", VMobject())])
assert len(obj.submob_dict) == 1
obj.remove("a")
assert len(obj.submob_dict) == 0
with pytest.raises(KeyError):
obj.remove("a")
def test_vdict_add():
"""Test the VDict add method."""
obj = VDict()
assert len(obj.submob_dict) == 0
obj.add([("a", VMobject())])
assert len(obj.submob_dict) == 1
with pytest.raises(TypeError):
obj.add([("b", Mobject())])
def test_vdict_remove(using_opengl_renderer):
"""Test the VDict remove method."""
obj = VDict([("a", OpenGLVMobject())])
assert len(obj.submob_dict) == 1
obj.remove("a")
assert len(obj.submob_dict) == 0
with pytest.raises(KeyError):
obj.remove("a")
def test_vdict_add(using_opengl_renderer):
"""Test the VDict add method."""
obj = VDict()
assert len(obj.submob_dict) == 0
obj.add([("a", OpenGLVMobject())])
assert len(obj.submob_dict) == 1
with pytest.raises(TypeError):
obj.add([("b", OpenGLMobject())])