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a3test.py
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/
a3test.py
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"""
Unit Test for Assignment A3
This module implements several test cases for a3. It is incomplete. You should look
though this file for places to add tests.
Brandon Nathasingh bn243, Taerim Oem te89
10/11/19
"""
import introcs
import a3
def test_complement():
"""
Test function complement
"""
print('Testing complement')
# One test is really good enough here
comp = a3.complement_rgb(introcs.RGB(250, 0, 71))
introcs.assert_equals(255-250, comp.red)
introcs.assert_equals(255-0, comp.green)
introcs.assert_equals(255-71, comp.blue)
# One more for good measure
comp = a3.complement_rgb(introcs.RGB(128, 64, 255))
introcs.assert_equals(255-128, comp.red)
introcs.assert_equals(255-64, comp.green)
introcs.assert_equals(255-255, comp.blue)
print('Test for complement passed')
def test_str5():
"""
Test function str5
"""
print('Testing for str5')
introcs.assert_equals('130.6', a3.str5(130.59))
introcs.assert_equals('130.5', a3.str5(130.54))
introcs.assert_equals('100.0', a3.str5(100))
introcs.assert_equals('100.6', a3.str5(100.56))
introcs.assert_equals('99.57', a3.str5(99.566))
introcs.assert_equals('99.99', a3.str5(99.99))
introcs.assert_equals('100.0', a3.str5(99.995))
introcs.assert_equals('22.00', a3.str5(21.99575))
introcs.assert_equals('21.99', a3.str5(21.994))
introcs.assert_equals('10.01', a3.str5(10.013567))
introcs.assert_equals('10.00', a3.str5(10.000000005))
introcs.assert_equals('10.00', a3.str5(9.9999))
introcs.assert_equals('9.999', a3.str5(9.9993))
introcs.assert_equals('1.355', a3.str5(1.3546))
introcs.assert_equals('1.354', a3.str5(1.3544))
introcs.assert_equals('0.046', a3.str5(.0456))
introcs.assert_equals('0.045', a3.str5(.0453))
introcs.assert_equals('0.006', a3.str5(.0056))
introcs.assert_equals('0.001', a3.str5(.0013))
introcs.assert_equals('0.000', a3.str5(.0004))
introcs.assert_equals('0.001', a3.str5(.0009999))
print('Passed str5 tests')
def test_str5_color():
"""
Test the str5 functions for cmyk and hsv.
"""
print('Testing str5_cmyk and str5_hsv')
# Tests for str5_cmyk
# We need to make sure the coordinates round properly
text = a3.str5_cmyk(introcs.CMYK(98.448, 25.362, 72.8, 1.0))
introcs.assert_equals('(98.45, 25.36, 72.80, 1.000)',text)
#another test
text = a3.str5_cmyk(introcs.CMYK(0.0, 1.5273, 100.0, 57.846))
introcs.assert_equals('(0.000, 1.527, 100.0, 57.85)',text)
# Tests for str5_hsv (add two)
text = a3.str5_hsv(introcs.HSV(98.448, 0.123456789, 0.0))
introcs.assert_equals('(98.45, 0.123, 0.000)',text)
text = a3.str5_hsv(introcs.HSV(0.0,0.313725490196,1.0))
introcs.assert_equals('(0.000, 0.314, 1.000)',text)
#test max value for H
text = a3.str5_hsv(introcs.HSV(359.99,1.0,1.0))
introcs.assert_equals('(360.0, 1.000, 1.000)',text)
#test min values
text = a3.str5_hsv(introcs.HSV(0.0,0.0,0.0))
introcs.assert_equals('(0.000, 0.000, 0.000)',text)
print('Tests for str5_cmyk and str5_hsv passed')
def test_rgb_to_cmyk():
"""
Test translation function rgb_to_cmyk
"""
print('Testing rgb_to_cmyk')
# The function should guarantee accuracy to three decimal places
rgb = introcs.RGB(255, 255, 255);
cmyk = a3.rgb_to_cmyk(rgb);
introcs.assert_equals(0.0, round(cmyk.cyan,3))
introcs.assert_equals(0.0, round(cmyk.magenta,3))
introcs.assert_equals(0.0, round(cmyk.yellow,3))
introcs.assert_equals(0.0, round(cmyk.black,3))
#testing all 0s
rgb = introcs.RGB(0, 0, 0);
cmyk = a3.rgb_to_cmyk(rgb);
introcs.assert_equals(0.0, round(cmyk.cyan,3))
introcs.assert_equals(0.0, round(cmyk.magenta,3))
introcs.assert_equals(0.0, round(cmyk.yellow,3))
introcs.assert_equals(100.0, round(cmyk.black,3))
#testing normal color
rgb = introcs.RGB(217, 43, 164);
cmyk = a3.rgb_to_cmyk(rgb);
introcs.assert_equals(0.0, round(cmyk.cyan,3))
introcs.assert_equals(80.184, round(cmyk.magenta,3))
introcs.assert_equals(24.424, round(cmyk.yellow,3))
introcs.assert_equals(14.902, round(cmyk.black,3))
print('Tests for rgb_to_cmyk passed')
def test_cmyk_to_rgb():
"""
Test translation function cmyk_to_rgb
"""
print('Testing cmyk_to_rgb')
# ADD TESTS TO ME
#all zero
cmyk = introcs.CMYK(0.0, 0.0, 0.0, 0.0)
rgb = a3.cmyk_to_rgb(cmyk)
introcs.assert_equals(255, round(rgb.red,3))
introcs.assert_equals(255,round(rgb.green,3))
introcs.assert_equals(255,round(rgb.blue,3))
# only black is max
cmyk = introcs.CMYK(0.0, 0.0, 0.0, 100.0)
rgb = a3.cmyk_to_rgb(cmyk)
introcs.assert_equals(0, round(rgb.red,3))
introcs.assert_equals(0,round(rgb.green,3))
introcs.assert_equals(0,round(rgb.blue,3))
# when all values are max
cmyk = introcs.CMYK(100.0, 100.0, 100.0, 100.0)
rgb = a3.cmyk_to_rgb(cmyk)
introcs.assert_equals(0, round(rgb.red,3))
introcs.assert_equals(0,round(rgb.green,3))
introcs.assert_equals(0,round(rgb.blue,3))
# test M is greatest
cmyk = introcs.CMYK(0.0, 80.184, 24.424, 14.902)
rgb = a3.cmyk_to_rgb(cmyk)
introcs.assert_equals(217, round(rgb.red,3))
introcs.assert_equals(43,round(rgb.green,3))
introcs.assert_equals(164,round(rgb.blue,3))
#test C is greatest
cmyk = introcs.CMYK(89.0, 11.0, 23.0, 50.0)
rgb = a3.cmyk_to_rgb(cmyk)
introcs.assert_equals(14, round(rgb.red,3))
introcs.assert_equals(113,round(rgb.green,3))
introcs.assert_equals(98,round(rgb.blue,3))
print('Tests for cmyk_to_rgb passed')
def test_rgb_to_hsv():
"""
Test translation function rgb_to_hsv
"""
print('Testing rgb_to_hsv')
# ADD TESTS TO ME
# if M=m
rgb = introcs.RGB(0,0,0)
hsv = a3.rgb_to_hsv(rgb)
introcs.assert_equals(0.0,round(hsv.hue,3))
introcs.assert_equals(0.0,round(hsv.saturation,3))
introcs.assert_equals(0.0,round(hsv.value,3))
#if M == red and green >= blue
rgb = introcs.RGB(255,240,150)
hsv = a3.rgb_to_hsv(rgb)
introcs.assert_equals(51.429,round(hsv.hue,3))
introcs.assert_equals(0.412,round(hsv.saturation,3))
introcs.assert_equals(1.0,round(hsv.value,3))
#M == red and green < blue
rgb = introcs.RGB(255,150,240)
hsv = a3.rgb_to_hsv(rgb)
introcs.assert_equals(308.571,round(hsv.hue,3))
introcs.assert_equals(0.412,round(hsv.saturation,3))
introcs.assert_equals(1.0,round(hsv.value,3))
#M == green
rgb = introcs.RGB(100,255,100)
hsv = a3.rgb_to_hsv(rgb)
introcs.assert_equals(120.0,round(hsv.hue,3))
introcs.assert_equals(0.608,round(hsv.saturation,3))
introcs.assert_equals(1.0,round(hsv.value,3))
#M == blue
rgb = introcs.RGB(100,100,255)
hsv = a3.rgb_to_hsv(rgb)
introcs.assert_equals(240.0,round(hsv.hue,3))
introcs.assert_equals(0.608,round(hsv.saturation,3))
introcs.assert_equals(1.0,round(hsv.value,3))
print('Tests for rgb_to_hsv passed')
def test_hsv_to_rgb():
"""
Test translation function hsv_to_rgb
"""
print('Testing hsv_to_rgb')
# ADD TESTS TO ME
#Hi == 0
hsv = introcs.HSV(0.0, 0.0, 0.0);
rgb = a3.hsv_to_rgb(hsv);
introcs.assert_equals(0.0,round(rgb.red,3))
introcs.assert_equals(0.0,round(rgb.green,3))
introcs.assert_equals(0.0,round(rgb.blue,3))
#Hi == 1
hsv = introcs.HSV(70.0, 0.5, 1.0);
rgb = a3.hsv_to_rgb(hsv);
introcs.assert_equals(234,round(rgb.red,3))
introcs.assert_equals(255,round(rgb.green,3))
introcs.assert_equals(128,round(rgb.blue,3))
#Hi == 2
hsv = introcs.HSV(130.0, 0.5, 1.0);
rgb = a3.hsv_to_rgb(hsv);
introcs.assert_equals(128,round(rgb.red,3))
introcs.assert_equals(255,round(rgb.green,3))
introcs.assert_equals(149,round(rgb.blue,3))
#Hi == 3
hsv = introcs.HSV(190.0, 0.5, 1.0);
rgb = a3.hsv_to_rgb(hsv);
introcs.assert_equals(128,round(rgb.red,3))
introcs.assert_equals(234,round(rgb.green,3))
introcs.assert_equals(255,round(rgb.blue,3))
#Hi == 4
hsv = introcs.HSV(250.0, 0.5, 1.0);
rgb = a3.hsv_to_rgb(hsv);
introcs.assert_equals(149,round(rgb.red,3))
introcs.assert_equals(128,round(rgb.green,3))
introcs.assert_equals(255,round(rgb.blue,3))
#Hi == 5
hsv = introcs.HSV(310.0, 0.5, 1.0);
rgb = a3.hsv_to_rgb(hsv);
introcs.assert_equals(255,round(rgb.red,3))
introcs.assert_equals(128,round(rgb.green,3))
introcs.assert_equals(234,round(rgb.blue,3))
print('Tests for hsv_to_rgb passed')
def test_contrast_value():
"""
Test translation function contrast_value
"""
print('Testing contrast_value')
# contrast == -1.0 (extreme)
result = a3.contrast_value(0.0,-1.0)
introcs.assert_floats_equal(0.5,result)
# contrast extreme with color
result = a3.contrast_value(1.0,-1.0)
introcs.assert_floats_equal(0.5,result)
# contrast < 0, bottom part of sawtooth
result = a3.contrast_value(0.1,-0.5)
introcs.assert_floats_equal(0.3,result)
# contrast < 0, middle of sawtooth
result = a3.contrast_value(0.4,-0.4)
introcs.assert_floats_equal(0.4571429,result)
# contrast < 0, upper part of sawtooth
result = a3.contrast_value(0.9,-0.3)
introcs.assert_floats_equal(0.8142857,result)
# contrast == 0.0, bottom part of sawtooth
result = a3.contrast_value(0.1,0.0)
introcs.assert_floats_equal(0.1,result)
# contrast == 0, middle of sawtooth
result = a3.contrast_value(0.6,0.0)
introcs.assert_floats_equal(0.6,result)
# contrast == 0.0, upper part of sawtooth
result = a3.contrast_value(0.9,0.0)
introcs.assert_floats_equal(0.9,result)
# contrast > 0, bottom part of sawtooth
result = a3.contrast_value(0.1,0.3)
introcs.assert_floats_equal(0.05384615,result)
# contrast > 0, middle of sawtooth
result = a3.contrast_value(0.4,0.5)
introcs.assert_floats_equal(0.2,result)
# contrast > 0, upper part of sawtooth
result = a3.contrast_value(0.9,0.4)
introcs.assert_floats_equal(0.95714286,result)
# contrast == 1.0 (extreme)
result = a3.contrast_value(0.2,1.0)
introcs.assert_floats_equal(0.0,result)
result = a3.contrast_value(0.6,1.0)
introcs.assert_floats_equal(1.0,result)
print('Tests for contrast_value passed')
def test_contrast_rgb():
"""
Test translation function contrast_value
"""
print('Testing contrast_rgb')
# Negative contrast
rgb = introcs.RGB(240, 15, 118)
hsv = a3.contrast_rgb(rgb,-0.4)
introcs.assert_equals(220, rgb.red)
introcs.assert_equals(35, rgb.green)
introcs.assert_equals(123, rgb.blue)
# Add two more tests
# zero contrast
rgb = introcs.RGB(240, 15, 118)
hsv = a3.contrast_rgb(rgb,0.0)
introcs.assert_equals(240, rgb.red)
introcs.assert_equals(15, rgb.green)
introcs.assert_equals(118, rgb.blue)
# positive contrast
rgb = introcs.RGB(240, 15, 118)
hsv = a3.contrast_rgb(rgb,0.5)
introcs.assert_equals(250, rgb.red)
introcs.assert_equals(5, rgb.green)
introcs.assert_equals(99, rgb.blue)
print('Tests for contrast_rgb passed')
# Script Code
# THIS PREVENTS THE TESTS RUNNING ON IMPORT
if __name__ == '__main__':
test_complement()
test_str5()
test_str5_color()
test_rgb_to_cmyk()
test_cmyk_to_rgb()
test_rgb_to_hsv()
test_hsv_to_rgb()
test_contrast_value()
test_contrast_rgb()
print('Module a3 passed all tests.')