def test_create_lilly_pad_returns_lilly_pad_type(self):
# arrange
fp = FrogPond(self.config)
# act
pad = fp._create_lilly_pad()
# assert
assert type(pad) == LillyPad
def test_is_overlapping_current_lilly_pads_returns_false_when_not_overlapping(self):
# arrange
fp = FrogPond(self.config)
centre_pad = fp._create_centre_lilly_pad()
pad1 = fp._create_lilly_pad()
fp.lilly_pads = [centre_pad, pad1]
overlapping_pad = Circle(Point(10000, 100000), 1)
# act
result = fp._is_overlapping_current_lilly_pads(overlapping_pad)
# assert
assert result is False
def test_is_overlapping_current_lilly_pads_returns_true_when_overlapping(self):
# arrange
fp = FrogPond(self.config)
centre_pad = fp._create_centre_lilly_pad()
pad1 = fp._create_lilly_pad()
fp.lilly_pads = [centre_pad, pad1]
overlapping_pad = Circle(pad1.circle.centre_point, 3)
# act
result = fp._is_overlapping_current_lilly_pads(overlapping_pad)
# assert
assert result is True
def test_choose_lilly_pad_position_returns_position_which_does_not_overlap_other_pads(self):
# arrange
fp = FrogPond(self.config)
centre_pad = fp._create_centre_lilly_pad()
pad1 = fp._create_lilly_pad()
fp.lilly_pads = [centre_pad, pad1]
pad2_radius = 3
# act
pad2_position = fp._choose_lilly_pad_position(pad2_radius)
# assert
pad2 = Circle(pad2_position, pad2_radius)
assert not pad2.intersects_circle(pad1.circle) \
and not pad2.intersects_circle(centre_pad.circle)