def METHOD_NAME(self):
    # Arrange
    self.swings.update_raw(1.00010, 1.00000, UNIX_EPOCH)
    self.swings.update_raw(1.00020, 1.00010, UNIX_EPOCH)
    self.swings.update_raw(1.00030, 1.00020, UNIX_EPOCH)
    self.swings.update_raw(1.00040, 1.00030, UNIX_EPOCH)
    self.swings.update_raw(1.00050, 1.00040, UNIX_EPOCH)
    self.swings.update_raw(1.00060, 1.00050, UNIX_EPOCH)
    self.swings.update_raw(1.00050, 1.00040, UNIX_EPOCH)
    # Act, Assert
    assert self.swings.direction == -1
    assert self.swings.changed
    assert self.swings.since_low == 0
    assert self.swings.since_high == 1
    assert self.swings.length == 0  # Just changed