def test_to_string_handles_empty_value(self):
inst = ErrorEvent({})
result = inst.to_string({'type': 'Error', 'value': ''})
assert result == 'Error'
def test_to_string_none_value(self):
inst = ErrorEvent({})
result = inst.to_string({'type': 'Error', 'value': None})
assert result == 'Error'
def test_to_string_eliminates_values_with_newline(self):
inst = ErrorEvent({})
result = inst.to_string({'type': 'Error', 'value': 'foo\nbar'})
assert result == 'Error: foo'
