def _update_self(self, delta: float, context: Context) -> None:
ping_acc = context.get(self.context_ping_acc_addr)
ping_acc += delta
if ping_acc > self.ping_time:
self._logger.info("PING")
ping_acc -= self.ping_time
context.set(self.context_ping_acc_addr, ping_acc)
def test_context_get_raises_error_if_path_contains_item(self):
"""
- Given: Context with test data
- When: Calling ``get`` with an illegal key path.
- Then: Should raise an error.
"""
data = get_test_data()
context = Context(data)
self.assertRaises(PyEngyError,
lambda: context.get("root.branch2.object.bad_key"))
def test_context_get_returns_value_at_path(self):
"""
- Given: Context with test data
- When: Calling ``get`` with an existing key path.
- Then: Should return the item at given key path.
"""
data = get_test_data()
context = Context(data)
test_dict = context.get("root.branch1")
self.assertIs(test_dict, data["root"]["branch1"])
def test_context_get_returns_none_if_missing_key_and_raise_if_missing_is_not_set(
self):
"""
- Given: Context with test data
- When: Calling ``get`` with a missing key path and raise if missing not set.
- Then: Should return None.
"""
data = get_test_data()
context = Context(data)
self.assertEqual(
None, context.get("root.branch2.missing", raise_if_missing=False))
def test_context_set_creates_internal_dicts_if_missing_key(self):
"""
- Given: Context with test data
- When: Calling ``set`` with a missing key path.
- Then: Should set the item at given key path creating any necessary intermediate dicts.
"""
data = get_test_data()
context = Context(data)
context.set("root.branch3.new_key", "new_value")
self.assertEqual("new_value", data["root"]["branch3"]["new_key"])
def test_context_set_changes_value_at_path(self):
"""
- Given: Context with test data
- When: Calling ``set`` with an existing key path.
- Then: Should set the item at given key path.
"""
data = get_test_data()
context = Context(data)
context.set("root.branch1.number", 532)
self.assertEqual(532, data["root"]["branch1"]["number"])
def test_context_remove_deletes_value_at_path(self):
"""
- Given: Context with test data
- When: Calling ``remove`` with an existing key path.
- Then: Should remove and return the item at given key path.
"""
data = get_test_data()
context = Context(data)
removed = context.remove("root.branch1.string")
self.assertEqual("value", removed)
self.assertDictEqual({"number": 23}, data["root"]["branch1"])
def test_context_get_raises_error_if_missing_key_and_raise_if_missing_is_set(
self):
"""
- Given: Context with test data
- When: Calling ``get`` with a missing key path and raise if missing set.
- Then: Should raise an error.
"""
data = get_test_data()
context = Context(data)
self.assertRaises(
PyEngyError,
lambda: context.get("root.branch2.missing", raise_if_missing=True))
def __init__(self,
name,
scene: Node,
window_size: Tuple[int, int] = (640, 480),
fullscreen: bool = False):
"""
Instantiates a new PyEngy app.
:param name: The name of the app. Should be unique.
:param scene: The scene for the app to handle.
:param window_size: The size of the window.
:param fullscreen: If true, will set to fullscreen. Otherwise will set to window.
"""
# Create the app variables and thread
self.name = name
self._scene = scene
self._stop_event = threading.Event()
self._app = threading.Thread(target=self.__run_app,
name=name,
daemon=True)
# Set window parameters
self._screen = None
self._window_size = window_size
self._fullscreen = fullscreen
self._background = None
# Set defaults for execution variables
reset_time(self.name)
self._previous_time = 0.0
self._current_time = 0.0
self._logger = get_logger("", self.name)
self._context = Context({})
def _build_self(self, context: Context) -> None:
"""
Handles the node build.
:param context: Contains the context data of the application.
"""
self.app_name = context.get("metadata.app_name")
self._logger = get_logger(self.path, self.app_name)
def test_context_init_saves_given_data(self):
"""
- Given: Test data
- When: Initializing context with given data.
- Then: Should return a context with given data.
"""
data = get_test_data()
context = Context(data)
self.assertIs(data, context.data)
def __build_context(self) -> Context:
"""
Auxiliary method to build the context of the app.
:return: The context of the app.
"""
return Context({
"metadata": {
"app_name": self.name
},
"screen": self._screen
})
def test_build_node_calls_self_build(self):
"""
- Given: A node tree structure.
- When: Calling render on a node.
- Then: Should handle event self and children.
"""
context = Context({})
node = Node("NODE")
child = Node("CHILD", parent=node)
node._build_self = Mock()
child._build_self = Mock()
node.build(context)
node._build_self.assert_called_with(context)
child._build_self.assert_called_with(context)
def test_handle_event_node_calls_self_handle_event(self):
"""
- Given: A node tree structure.
- When: Calling handle event on a node.
- Then: Should handle event self and children.
"""
event = Event(-1, {})
context = Context({})
node = Node("NODE")
child = Node("CHILD", parent=node)
node._handle_event_self = Mock()
child._handle_event_self = Mock()
node.handle_event(event, context)
node._handle_event_self.assert_called_with(event, context)
child._handle_event_self.assert_called_with(event, context)
def test_update_node_calls_self_update(self):
"""
- Given: A node tree structure.
- When: Calling update on a node.
- Then: Should update self and children.
"""
delta = 12.1248
context = Context({})
node = Node("NODE")
child = Node("CHILD", parent=node)
node._update_self = Mock()
child._update_self = Mock()
node.update(delta, context)
node._update_self.assert_called_with(delta, context)
child._update_self.assert_called_with(delta, context)
def test_render_node_calls_self_render(self):
"""
- Given: A node tree structure.
- When: Calling render on a node.
- Then: Should handle event self and children.
"""
delta = 12.1248
context = Context({})
node = Node("NODE")
child = Node("CHILD", parent=node)
node._render_self = Mock()
child._render_self = Mock()
node.render(delta, context)
node._render_self.assert_called_with(delta, context)
child._render_self.assert_called_with(delta, context)
def test_handle_event_inactive_node_does_not_call_self_handle_event(self):
"""
- Given: A node tree structure.
- When: Calling handle event on an inactive node.
- Then: Should not handle event self or children.
"""
event = Event(-1, {})
context = Context({})
node = Node("NODE")
child = Node("CHILD", parent=node)
node._handle_event_self = Mock()
child._handle_event_self = Mock()
node.active = False
node.handle_event(event, context)
node._handle_event_self.assert_not_called()
child._handle_event_self.assert_not_called()
def test_update_inactive_node_does_not_call_self_update(self):
"""
- Given: A node tree structure.
- When: Calling update on an inactive node.
- Then: Should not update self or children.
"""
delta = 12.1248
context = Context({})
node = Node("NODE")
child = Node("CHILD", parent=node)
node._update_self = Mock()
child._update_self = Mock()
node.active = False
node.update(delta, context)
node._update_self.assert_not_called()
child._update_self.assert_not_called()
def test_render_invisible_node_does_not_call_self_render(self):
"""
- Given: A node tree structure.
- When: Calling render on an invisible node.
- Then: Should not render self or children.
"""
delta = 12.1248
context = Context({})
node = Node("NODE")
child = Node("CHILD", parent=node)
node._render_self = Mock()
child._render_self = Mock()
node.visible = False
node.render(delta, context)
node._render_self.assert_not_called()
child._render_self.assert_not_called()
def _build_self(self, context: Context) -> None:
super()._build_self(context)
self.context_ping_acc_addr = "scene.{}.ping_acc".format(self.name)
context.set(self.context_ping_acc_addr, 0)