def run_test_swell_or_shrink_once():
""" Tests the swell_or_shrink_once method. """
m1_tests.run_test_swell_or_shrink_once() # This runs OUR tests
random.seed(42) # Lets us determine the results of the randomness
# This is a VISUAL test.
# Construct 3 CircleChanger objects, printing and drawing them.
m1_tests.start_drawing('Testing: the swell_or_shrink_once method')
print('After construction:')
circle_changer1 = CircleChanger(
200, 150, 30, 'blue',
('blue', 'yellow', 'green', 'aquamarine', 'brown'))
print(circle_changer1)
circle_changer1.draw()
circle_changer2 = CircleChanger(400, 100, 50, 'red', ('green', ))
print(circle_changer2)
circle_changer2.draw()
circle_changer3 = CircleChanger(300, 200, 10, 'green', ('yellow', 'blue'))
print(circle_changer3)
circle_changer3.draw("""
A BLUE circle at (200, 150) with radius 30 and thickness 1,
and a RED circle at (400, 100) with radius 50 and thickness 1,
and a GREEN circle at (300, 200) with radius 10 and thickness 1.""")
# For each of the three CircleChanger objects,
# apply the swell_or_shrink_once method, then redraw/reprint.
print('\nAfter the first set of swell_or_shrink_once calls:')
circle_changer1.swell_or_shrink_once(100)
print(circle_changer1)
circle_changer1.draw()
circle_changer2.swell_or_shrink_once(-30)
print(circle_changer2)
circle_changer1.draw()
circle_changer3.swell_or_shrink_once(40)
print(circle_changer3)
circle_changer3.draw("""
After the first swell_or_shrink, now:
Left circle is bigger (radius 130), still BLUE but thickness 13,
Right circle is smaller (radius 20), GREEN with thickness 3,
Middle circle is bigger (radius 50), YELLOW with thickness 6.""")
def run_test_change_to_original_color():
""" Tests the change_to_original_color method. """
m1_tests.run_test_change_to_original_color() # This runs OUR tests.
random.seed(123) # Lets us determine the results of the randomness
# This is a VISUAL test.
# Construct 2 CircleChanger objects, printing and drawing them.
title = 'Testing: the change_to_original_color method'
m1_tests.start_drawing(title)
print('After construction:')
circle_changer1 = CircleChanger(100, 100, 100, 'black',
('blue', 'green'))
circle_changer1.draw()
print(circle_changer1)
circle_changer2 = CircleChanger(280, 100, 100, 'purple',
('yellow', 'magenta', 'blue',
'green', 'yellow', 'aquamarine'))
print(circle_changer2)
circle_changer2.draw("""
A BLACK circle at (100, 100) with radius 100,
and a PURPLE circle at (280, 100) with radius 100.
You will next see a bunch of colors,
ending with BLACK and PURPLE again.""")
# Flash through many color changes. Then apply the
# change_to_original_color method and print/draw the results.
print('\nAfter the first set of change_to_original_color calls:')
for k in range(30):
circle_changer1.change_color(k % 2)
circle_changer1.draw(0.05)
circle_changer2.change_color(k % 6)
circle_changer2.draw(0.05)
circle_changer1.change_to_original_color()
print(circle_changer1)
circle_changer1.draw()
circle_changer2.change_to_original_color()
print(circle_changer2)
circle_changer2.draw("""
Should end as it started: BLACK and PURPLE.""")
def run_test_change_to_next_color_in_tuple():
""" Tests the change_to_next_color_in_tuple method. """
# m1_tests.change_to_next_color() # This runs OUR tests.
# This is a VISUAL test.
# Construct 2 CircleChanger objects, printing and drawing them.
title = 'Testing: the change_to_next_color method'
m1_tests.start_drawing(title)
print('After construction:')
circle_changer1 = CircleChanger(100, 100, 100, 'black',
('blue', 'green', 'red'))
circle_changer1.draw()
print(circle_changer1)
circle_changer2 = CircleChanger(
280, 100, 40, 'purple',
('yellow', 'magenta', 'blue', 'green', 'yellow', 'aquamarine'))
print(circle_changer2)
circle_changer2.draw("""
A BLACK circle at (100, 100) with radius 100,
and a PURPLE circle at (280, 100) with radius 40.
You will next see a bunch of colors,
cycling through BLUE, GREEN, RED (for the left, larger circle)
and YELLOW, MAGENTA, BLUE, GREEN, YELLOW (again) and AQUAMARINE
(for the right, smaller circle).""")
# Cycle through the CircleChanger's tuples of colors:
print('\nAfter the first set of change_to_next_color calls:')
for _ in range(16):
circle_changer1.change_to_next_color_in_tuple()
circle_changer1.draw(0.25)
print('1', circle_changer1.times_changed)
circle_changer2.change_to_next_color_in_tuple()
circle_changer2.draw(0.25)
print('2', circle_changer2.times_changed)
circle_changer2.draw("""
Should end with circles: BLUE and GREEN.""")
def run_test_change_color():
""" Tests the change_color method. """
m1_tests.run_test_change_color() # This runs OUR tests.
random.seed(77) # Lets us determine the results of the randomness
# This is a VISUAL test.
# Construct 2 CircleChanger objects, printing and drawing them.
title = 'Testing: the change_color method'
m1_tests.start_drawing(title)
print('After construction:')
circle_changer1 = CircleChanger(100, 100, 70, 'black', ('blue', 'yellow'))
circle_changer1.draw()
print(circle_changer1)
circle_changer2 = CircleChanger(
350, 130, 50, 'purple',
('yellow', 'magenta', 'blue', 'green', 'yellow', 'aquamarine'))
print(circle_changer2)
circle_changer2.draw("""
A BLACK circle at (100, 100) with radius 70,
and a PURPLE circle at (350, 130) with radius 50.""")
# Apply the change_color method. Then print/draw the results.
print('\nAfter the first set of change_color calls:')
circle_changer1.change_color(1)
print(circle_changer1)
circle_changer1.draw()
circle_changer2.change_color(5)
print(circle_changer2)
circle_changer2.draw("""
Same circles, but now YELLOW and AQUAMARINE.
The next test will cycle the LEFT circle through:
blue and yellow (repeating as needed)
and the RIGHT circle through:
yellow, magenta, blue, green, yellow, and aquamarine.""")
# Another test:
for k in range(6):
circle_changer1.change_color(k % 2)
circle_changer1.draw()
circle_changer2.change_color(k)
circle_changer2.draw()
circle_changer1.draw("""
Should have finished with YELLOW and AQUAMARINE.""")
# This tests change_color and swell_and_shrink_once
# repeatedly.
for k in range(20, 0, -1):
circle_changer1.change_color(k % 2)
circle_changer1.draw(0.05)
circle_changer1.swell_or_shrink_once((-40 // k) * (k**-1))
circle_changer1.draw(0.05)
circle_changer2.change_color(k % 6)
circle_changer2.draw(0.05)
circle_changer2.swell_or_shrink_once(50 // k)
circle_changer1.draw(0.05)
circle_changer1.draw("""
Should have ended with two YELLOW circles:
a TINY one on the LEFT and a HUGE one on the RIGHT.""")
def run_test_swallow():
""" Tests the swallow method. """
m1_tests.run_test_swallow() # This runs OUR tests.
# This is a VISUAL test.
# Construct 2 CircleChanger objects, printing and drawing them.
title = 'Testing: the swallow method'
m1_tests.start_drawing(title)
print('After construction:')
circle_changer1 = CircleChanger(200, 150, 50, 'blue',
('blue', 'yellow', 'green'))
circle_changer1.draw()
print(circle_changer1)
circle_changer2 = CircleChanger(450, 180, 30, 'green',
('yellow', 'magenta'))
print(circle_changer2)
circle_changer2.draw("""
A BLUE circle at (200, 150) with radius 50,
and a GREEN circle at (450, 180) with radius 30.""")
# Apply the swallow method. Then print/draw the resulting
# circle, drawing the original circles on top of it.
print('\nAfter the first swallow call:')
circle_changer3 = circle_changer1.swallow(circle_changer2)
print(circle_changer3)
circle_changer3.draw("""
The RED circle should be centered at (325, 165) with radius about 126.
It should cover approximately HALF of the BLUE and GREEN circles.""")
circle_changer4 = CircleChanger(200, 150, 50, 'blue',
('blue', 'yellow', 'green'))
circle_changer4.draw()
circle_changer5 = CircleChanger(450, 180, 30, 'green',
('yellow', 'magenta'))
circle_changer5.draw("""
Here are the BLUE and GREEN circles again, on TOP of the RED circle.
The RED should appear to be underneath approximately HALF
of each of the BLUE and GREEN circles.""")
# Test that the swallowing (red) CircleChanger
# has a colors attribute that is the CONCATENATION
# of the colors attributes of the swallowed CircleChangers.
if circle_changer3.colors != (circle_changer4.colors +
circle_changer5.colors):
message = """The colors instance variable
of the swallowing CircleChanger (the one RETURNED by
the swallow method) is wrong.
It should be the CONCATENATION of the colors instance
variables of the two SWALLOWED Animated Circle objects.
For example, if circle_changer1.colors is:
(blue', 'yellow', 'green')
and if circle_changer2.colors is:
('yellow', 'magenta')
then circle_changer1.swallow(circle_changer2) should be:
('blue', 'yellow', 'green', 'yellow', 'magenta')
and circle_changer2.swallow(circle_changer1) should be:
('yellow', 'magenta', 'blue', 'yellow', 'green')
"""
time.sleep(0.5)
print(message, file=sys.stderr)
print('The colors instance of circle_changer1 is:',
'\n ',
circle_changer1.colors,
file=sys.stderr)
print('The colors instance of circle_changer2 is:',
'\n ',
circle_changer2.colors,
file=sys.stderr)
print('The colors instance of the swallowing', file=sys.stderr)
print('CircleChanger (circle_changer3) is:',
'\n ',
circle_changer3.colors,
file=sys.stderr)
print('but should be:', file=sys.stderr)
print(" ('blue', 'yellow', 'green', 'yellow', 'magenta')",
file=sys.stderr)
time.sleep(1)
