def run_test_RETURN_circle():
""" Tests the RETURN_circle function. """
print()
print('-----------------------------------------')
print('Testing RETURN_circle:')
print('-----------------------------------------')
print()
print('See the graphics window for this test.')
print('If an error msg appears at any point,')
print('then you have FAILED this test.')
# ------------------------------------------------------------------
# Tests 1 and 2 (on one window):
# ------------------------------------------------------------------
window = rg.RoseWindow(500, 400, 'Testing RETURN_circle')
text = rg.Text(rg.Point(250, 125), '')
text.attach_to(window.initial_canvas)
circle = rg.Circle(rg.Point(200, 300), 50)
circle.fill_color = 'blue'
circle.attach_to(window.initial_canvas)
msg = 'Note: If you see an error message at ANY point,\n'
msg = msg + 'then you have failed this test.\n\n'
msg = msg + 'I have drawn the original, blue circle.\n\n'
msg = msg + 'So you should see a BLUE circle below\n'
msg = msg + '(and nothing else).\n\n'
msg = msg + 'Click the mouse to continue this test.\n'
text.text = msg
window.render(0.5)
window.get_next_mouse_click()
new_circle = RETURN_circle(circle, 'red')
if new_circle:
new_circle.attach_to(window.initial_canvas)
msg = 'I have now called your RETURN_circle function\n'
msg = msg + 'and drawn the CLONED, RED circle that your\n'
msg = msg + 'RETURN_circle function should have returned.\n\n'
msg = msg + 'So you should see a RED circle below\n'
msg = msg + '(and nothing else, since the blue circle\n'
msg = msg + 'is beneath the red circle).\n\n'
msg = msg + 'Click the mouse to continue this test.'
text.text = msg
window.render(0.5)
window.get_next_mouse_click()
if new_circle:
new_circle.detach_from(window.initial_canvas)
msg = 'I have now UN-drawn the CLONED, RED circle.\n\n'
msg = msg + 'So you should see the original, BLUE circle below\n'
msg = msg + '(and nothing else).\n\n'
msg = msg + 'Click the mouse to continue this test.'
text.text = msg
window.render(0.5)
window.get_next_mouse_click()
circle.detach_from(window.initial_canvas)
msg = 'I have now UN-drawn the ORIGINAL, blue circle.\n\n'
msg = msg + 'So you should see NO circles below.\n\n'
msg = msg + 'Click the mouse to continue this test.'
text.text = msg
window.render(0.5)
window.get_next_mouse_click()
if new_circle:
new_circle.attach_to(window.initial_canvas)
msg = 'Now I have RE-drawn the CLONED, RED circle\n'
msg = msg + 'that your RETURN_circle function\n'
msg = msg + 'should have returned.\n\n'
msg = msg + 'So you should see a RED circle below\n'
msg = msg + '(and nothing else).\n\n'
msg = msg + 'Click the mouse to continue this test.'
text.text = msg
window.render(0.5)
window.get_next_mouse_click()
# ------------------------------------------------------------------
# Note: The following statements make the variable new_circle
# refer to a new, green circle. So we can no longer refer
# to the RED circle (to which the variable new_circle once
# referred). But the red circle still exists!
# ------------------------------------------------------------------
new_circle = RETURN_circle(circle, 'green')
if new_circle:
new_circle.attach_to(window.initial_canvas)
msg = 'Now I have ALSO drawn the CLONED, GREEN circle\n'
msg = msg + 'that your RETURN_circle function\n'
msg = msg + 'should have returned.\n\n'
msg = msg + 'So you should see a GREEN circle below\n'
msg = msg + '(and nothing else, since the red circle\n'
msg = msg + 'is beneath the green circle).\n\n'
msg = msg + 'Click the mouse to continue this test.'
text.text = msg
window.render(0.5)
window.get_next_mouse_click()
if new_circle:
new_circle.detach_from(window.initial_canvas)
msg = 'I have now UN-drawn the CLONED, GREEN circle.\n\n'
msg = msg + 'So you should see the cloned, RED circle below\n'
msg = msg + '(and nothing else).\n\n'
msg = msg + 'Click the mouse to continue this test.'
text.text = msg
window.render(0.5)
window.get_next_mouse_click()
new_circle2 = RETURN_circle(rg.Circle(rg.Point(250, 350), 25),
'white')
if new_circle:
new_circle.attach_to(window.initial_canvas)
if new_circle2:
new_circle2.attach_to(window.initial_canvas)
msg = 'I have now RE-drawn the CLONED, GREEN circle.\n'
msg = msg + 'Additionally, I called your RETURN_circle function\n'
msg = msg + 'again, asking it to return a smaller WHITE circle\n'
msg = msg + 'that is below and to the right of the other circles.\n\n'
msg = msg + 'So you should see a GREEN circle below\n'
msg = msg + 'and a smaller WHITE circle below and to its right\n'
msg = msg + '(but NOT the red circle, since it\n'
msg = msg + 'is beneath the green circle).\n\n'
msg = msg + 'Click the mouse to conclude this test.'
text.text = msg
window.render(0.5)
window.get_next_mouse_click()
window.close()
def run_test_MUTATE_circle():
""" Tests the MUTATE_circle function. """
print()
print('-----------------------------------------')
print('Testing MUTATE_circle:')
print('-----------------------------------------')
print()
print('See the graphics window for this test.')
print('If an error msg appears at any point,')
print('you have failed this test.')
# Tests 1 and 2 (on one window):
window = rg.RoseWindow(500, 450, 'Testing MUTATE_circle')
text = rg.Text(rg.Point(250, 125), '')
text.attach_to(window.initial_canvas)
circle = rg.Circle(rg.Point(250, 300), 50)
circle.fill_color = 'yellow'
circle.attach_to(window.initial_canvas)
msg = 'Note: If you see an error message at ANY point,\n'
msg = msg + 'then you have failed this test.\n\n'
msg = msg + 'I have drawn the original, yellow circle.\n\n'
msg = msg + 'So you should see a YELLOW circle below\n'
msg = msg + '(and nothing else).\n\n'
msg = msg + 'Click the mouse to continue this test.\n'
text.text = msg
window.render(0.5)
window.get_next_mouse_click()
result = MUTATE_circle(circle, 'pink', 200)
msg = 'I have called your MUTATE_circle function.\n'
msg = msg + 'It should have MUTATED the (sole) circle to be pink\n'
msg = msg + 'and 200 units to the right of where it was.\n\n'
msg = msg + 'So you should see (only) a PINK circle below,\n'
msg = msg + 'almost touching the right side of the window.\n\n'
msg = msg + 'Click the mouse to continue this test.'
if result is not None:
msg = msg + '\n\nERROR: You returned a value! Wrong!!!'
text.text = msg
window.render(0.5)
window.get_next_mouse_click()
circle.detach_from(window.initial_canvas)
msg = 'I have now UN-drawn the (sole) circle.\n\n'
msg = msg + 'So you should see NO circles below.\n\n'
msg = msg + 'Click the mouse to continue this test.'
text.text = msg
window.render(0.5)
window.get_next_mouse_click()
circle.attach_to(window.initial_canvas)
msg = 'Now I have RE-drawn the (now pink) circle.\n\n'
msg = msg + 'So you should see (only) a PINK circle below,\n'
msg = msg + 'just touching the right side of the window.\n'
msg = msg + 'Click the mouse to continue this test.'
text.text = msg
window.render(0.5)
window.get_next_mouse_click()
result = MUTATE_circle(circle, 'black', -400)
msg = 'I have called your MUTATE_circle function again.\n'
msg = msg + 'It should have MUTATED the (sole) circle to be black\n'
msg = msg + 'and 400 units to the left of where it was.\n\n'
msg = msg + 'So you should see (only) a BLACK circle below,\n'
msg = msg + 'just touching the left side of the window.\n\n'
msg = msg + 'Click the mouse to continue this test.'
if result is not None:
msg = msg + '\n\nERROR: You returned a value! Wrong!!!'
text.text = msg
window.render(0.5)
window.get_next_mouse_click()
another_circle = rg.Circle(circle.center, 25)
another_circle.fill_color = 'red'
another_circle.attach_to(window.initial_canvas)
msg = 'I have constructed and drawn another circle.\n'
msg = msg + 'It is red and smaller than the black circle,\n'
msg = msg + 'and currently centered on the black circle.\n\n'
msg = msg + 'So you should now see a BLACK circle below,\n'
msg = msg + 'just touching the left side of the window,\n'
msg = msg + 'with a smaller red circle on top of the black circle.\n\n'
msg = msg + 'Click the mouse to continue this test.'
text.text = msg
window.render(0.5)
window.get_next_mouse_click()
result = MUTATE_circle(another_circle, 'white', 65)
msg = 'I have called your MUTATE_circle function again.\n'
msg = msg + 'It should have MUTATED the small, red circle to be white\n'
msg = msg + 'and 65 units to the left of where it was.\n\n'
msg = msg + 'So you should see a BLACK circle below,\n'
msg = msg + 'just touching the left side of the window,\n'
msg = msg + 'with a WHITE circle slightly overlapping the black one.\n\n'
msg = msg + 'Click the mouse to conclude this test.'
if result is not None:
msg = msg + '\n\nERROR: You returned a value! Wrong!!!'
text.text = msg
window.render(0.5)
window.get_next_mouse_click()
window.close()
def run_test_swap_colors():
""" Tests the swap_colors function. """
print()
print('--------------------------------------------------')
print('Testing the swap_colors function:')
print('--------------------------------------------------')
# ------------------------------------------------------------------
# Test 1: Note that it tests both:
# -- what was SUPPOSED to be mutated (fill_color) and
# -- what was NOT supposed to be mutated (all else).
# The code passes this test if the expected value printed
# is the same as the actual value printed.
# ------------------------------------------------------------------
circle = rg.Circle(rg.Point(100, 150), 50)
circle.fill_color = 'blue'
rectangle = rg.Rectangle(rg.Point(200, 30), rg.Point(350, 150))
rectangle.fill_color = 'green'
expected_c = 'Circle: center=(100, 150), radius=50,'
expected_c += ' fill_color=green, outline_color=black,'
expected_c += ' outline_thickness=1.'
expected_r = 'Rectangle: corner_1=(200, 30), corner_2=(350, 150),'
expected_r += ' fill_color=blue, outline_color=black,'
expected_r += ' outline_thickness=1.'
swap_colors(circle, rectangle)
print()
print('Expected circle after the function call:')
print(expected_c)
print('Actual circle after the function call:')
print(circle)
print()
print('Expected rectangle after the function call:')
print(expected_r)
print('Actual rectangle after the function call:')
print(rectangle)
# ------------------------------------------------------------------
# Test 2: This is a VISUAL test.
# The code passes this test if the objects are drawn per the test.
#
# Here, that means that when the window pauses and asks the user
# to press any key to continue:
# -- the circle is black_filled and
# -- the rectangle is red_filled
# and then when the user presses a key and the window pauses
# again, now the reverse is true:
# -- the circle is red_filled and
# -- the rectangle is black_filled.
# ------------------------------------------------------------------
title = 'The code passes the test if the fill colors of the circle'
title += ' and rectangle get SWAPPED.'
window = rg.RoseWindow(700, 400, title)
circle = rg.Circle(rg.Point(100, 50), 40)
circle.fill_color = 'black'
circle.attach_to(window)
rectangle = rg.Rectangle(rg.Point(200, 280), rg.Point(350, 350))
rectangle.fill_color = 'red'
rectangle.attach_to(window)
msg1 = 'At this point, the circle should be filled with BLACK\n'
msg1 += 'and the rectangle should be filled with RED'
message = rg.Text(rg.Point(400, 100), msg1)
message.attach_to(window)
# At this point, the CIRCLE should be filled with BLACK
# and the RECTANGLE filled with RED.
window.render()
window.continue_on_mouse_click()
swap_colors(circle, rectangle)
# At this point, the CIRCLE should be filled with RED
# and the RECTANGLE filled with BLACK.
msg2 = 'Now, the circle should be filled with RED\n'
msg2 += 'and the rectangle should be filled with BLACK.\n'
msg2 += 'If so, and if nothing else changed,\n'
msg2 += 'the code passed this test.'
message.text = msg2
window.render()
window.close_on_mouse_click()
