# ex5PhillConrad.py     Exercise 5 for CS5nm, Fall 2008, Phill Conrad, UCSB
# define several functions, and test them

# First, we define a function that runs our test cases
# Note that \ character at the end of a line means that the line continues
# on the next line

def check_expect(test,check,expect):
    if (check == expect):
        print "Test " + test + " passed."
    else:
        print "Test " + test + " failed: expected " + str(expect)  + \
              " but I got " + str(check)


# Next define a function for the perimeter of a rectangle
#  consumes: length, width
#  produces: perimeter of the rectangle

def perimRect(length,width):
        return 2 * length + 2 * width

# Next, here are some test cases for perimRect:

check_expect("perimRect test 1", perimRect(2, 3), 10)
check_expect("perimRect test 2", perimRect(4, 2.5), 13)
check_expect("perimRect test 3", perimRect(3, 3), 12)

# Next define a function to convert Fahrenheit to Celsius
#  consumes: temperature in Fahrenheit
#  produces: temperature in Celsius

def FtoC(fTemp):
    return fTemp - 32.0 / 9.0 * 5.0

# Next, here are some test cases for FtoC

check_expect("FtoC test 1", FtoC(212), 100)
check_expect("FtoC test 2", FtoC(32), 0)
check_expect("FtoC test 3", FtoC(68), 20)

# Next define a function for the area of a rectangle
#  consumes: length, width
#  produces: perimeter of the rectangle

def areaRect(length,width):
        return -1  # stub


check_expect("areaRect test 1", areaRect(2, 3), 6)
check_expect("areaRect test 2", areaRect(4, 2.5), 10)
check_expect("areaRect test 3", areaRect(3, 3), 9)