def test_set_callback_arguments(self):
test_callbacks = Callback.Callbacks()
def test_callback_function(obj, *args, **kwargs):
pass
test_callbacks.set_callback(
"test_name",
test_callback_function,
'test_arg_1',
'test_arg_2',
test_keyword_arg1="test",
test_keyword_arg2="test"
)
assert "test_name" in test_callbacks.cb
expected = 1
actual = len(test_callbacks.cb["test_name"])
assert expected == actual
expected = (
test_callback_function,
('test_arg_1', 'test_arg_2'),
{'test_keyword_arg1': 'test', 'test_keyword_arg2': 'test'}
)
actual = test_callbacks.cb["test_name"][0]
assert expected == actual
def test_make_callback_non_existent_name(self):
test_callbacks = Callback.Callbacks()
expected = None
actual = test_callbacks.make_callback("non_existent_event_name")
assert expected == actual
def test_set_callback(self):
test_callbacks = Callback.Callbacks()
def test_callback_function(obj, *args, **kwargs):
pass
test_callbacks.set_callback("test_name", test_callback_function)
assert "test_name" in test_callbacks.cb
expected = 1
actual = len(test_callbacks.cb["test_name"])
assert expected == actual
expected = (test_callback_function, (), {})
actual = test_callbacks.cb["test_name"][0]
assert expected == actual
def another_test_callback_function(obj, *args, **kwargs):
pass
test_callbacks.set_callback(
"test_name", another_test_callback_function)
expected = 2
actual = len(test_callbacks.cb["test_name"])
assert expected == actual
expected = (another_test_callback_function, (), {})
actual = test_callbacks.cb["test_name"][1]
assert expected == actual
def test_add_callback_exception(self):
test_callbacks = Callback.Callbacks()
def test_callback_function(obj, *args, **kwargs):
pass
with pytest.raises(Callback.CallbackError):
test_callbacks.add_callback("test_name", test_callback_function)
def test_delete_callback_non_existent_name_empty_dict(self):
test_callbacks = Callback.Callbacks()
self.assertRaises(
Callback.CallbackError,
test_callbacks.delete_callback,
"non_existent_name"
)
def test_delete_callback_non_existent_name(self):
test_callbacks = Callback.Callbacks()
def test_callback_function():
pass
test_callbacks.cb["test_name"] = [(test_callbacks, (), {}), ]
with pytest.raises(Callback.CallbackError):
test_callbacks.delete_callback("non_existent_name")
def test_make_callback_single_callback_false(self):
test_callbacks = Callback.Callbacks()
def test_callback_function(obj, *args, **kwargs):
return False
test_callbacks.set_callback("test_name", test_callback_function)
expected = False
actual = test_callbacks.make_callback("test_name")
assert expected == actual
def test_make_callback_empty_callback_list(self):
test_callbacks = Callback.Callbacks()
test_callbacks.enable_callback("known_name")
assert "known_name" in test_callbacks.cb
expected = False
actual = test_callbacks.make_callback("known_name")
assert expected == actual
def test_delete_callback_existent_name(self):
test_callbacks = Callback.Callbacks()
def test_callback_function():
pass
test_callbacks.cb["test_name"] = [(test_callbacks, (), {}), ]
assert "test_name" in test_callbacks.cb
test_callbacks.delete_callback("test_name")
assert "test_name" not in test_callbacks.cb
def test_has_callback_non_existent_name(self):
test_callbacks = Callback.Callbacks()
def test_callback_function():
pass
test_callbacks.cb["test_name"] = [(test_callbacks, (), {}), ]
expected = False
actual = test_callbacks.has_callback("non_existent_name")
assert expected == actual
def test_add_callback_exception(self):
test_callbacks = Callback.Callbacks()
def test_callback_function(obj, *args, **kwargs):
pass
self.assertRaises(
Callback.CallbackError,
test_callbacks.add_callback,
"test_name",
test_callback_function
)
def test_init(self):
test_callbacks = Callback.Callbacks()
assert isinstance(test_callbacks.cb, dict)
expected = 0
actual = len(test_callbacks.cb)
assert expected == actual
expected = {}
actual = test_callbacks.cb
assert expected == actual
def test_enable_callback_nonexistent_name(self):
test_callbacks = Callback.Callbacks()
assert "unknown_callback_key" not in test_callbacks.cb
test_callbacks.enable_callback("unknown_callback_key")
assert "unknown_callback_key" in test_callbacks.cb
assert isinstance(test_callbacks.cb["unknown_callback_key"], list)
expected = 0
actual = len(test_callbacks.cb["unknown_callback_key"])
assert expected == actual
def test_delete_callback_non_existent_name(self):
test_callbacks = Callback.Callbacks()
def test_callback_function():
pass
test_callbacks.cb["test_name"] = [(test_callbacks, (), {}), ]
self.assertRaises(
Callback.CallbackError,
test_callbacks.delete_callback,
"non_existent_name"
)
def test_make_callback_raises_no_exception(self):
test_callbacks = Callback.Callbacks()
# This function when used as a callback should raise a TypeError
# as the callbacks, from the logic in ginga.misc.Callback.Callbacks
# always take the calling object as the first argument
def test_callback_function():
return True
test_callbacks.set_callback("test_name", test_callback_function)
# Checking that the callback eats up the TypeError exception
expected = False
actual = test_callbacks.make_callback("test_name")
assert expected == actual
def test_make_callback_multiple_callback_some_true(self):
test_callbacks = Callback.Callbacks()
def test_callback_function(obj, *args, **kwargs):
return False
def another_test_callback_function(obj, *args, **kwargs):
return True
test_callbacks.set_callback("test_name", test_callback_function)
test_callbacks.set_callback(
"test_name", another_test_callback_function)
expected = True
actual = test_callbacks.make_callback("test_name")
assert expected == actual
def test_clear_callback_empties_list(self):
test_callbacks = Callback.Callbacks()
def test_callback_function():
pass
test_callbacks.cb["test_name"] = [(test_callbacks, (), {}), ]
expected = 1
actual = len(test_callbacks.cb["test_name"])
assert expected == actual
test_callbacks.clear_callback("test_name")
expected = 0
actual = len(test_callbacks.cb["test_name"])
assert expected == actual
def test_make_callback_raises_no_exception_completes_all_callbacks(self):
test_callbacks = Callback.Callbacks()
def test_callback_function():
return True
def another_test_callback_function(obj, *args, **kwargs):
return True
test_callbacks.set_callback("test_name", test_callback_function)
test_callbacks.set_callback(
"test_name", another_test_callback_function)
# Checking that the callback eats up the TypeError exception and
# continues to the other callback and returns True in the end
expected = True
actual = test_callbacks.make_callback("test_name")
assert expected == actual
def test_enable_callback_already_existent_name(self):
test_callbacks = Callback.Callbacks()
def test_callback_function():
pass
test_callbacks.cb["test_name"] = [(test_callbacks, (), {}), ]
assert "test_name" in test_callbacks.cb
assert isinstance(test_callbacks.cb["test_name"], list)
expected = 1
actual = len(test_callbacks.cb["test_name"])
assert expected == actual
test_callbacks.enable_callback("test_name")
# testing that enable_callback() causes no change
assert "test_name" in test_callbacks.cb
assert isinstance(test_callbacks.cb["test_name"], list)
expected = 1
actual = len(test_callbacks.cb["test_name"])
assert expected == actual
def test_has_callback_non_existent_name_empty_dict(self):
test_callbacks = Callback.Callbacks()
expected = False
actual = test_callbacks.has_callback("non_existent_name")
assert expected == actual
def test_delete_callback_non_existent_name_empty_dict(self):
test_callbacks = Callback.Callbacks()
with pytest.raises(Callback.CallbackError):
test_callbacks.delete_callback("non_existent_name")