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Unit Testing Assignment

by T. Bunratta.

codecov Build Status

Test Cases for unique

Write a table describing your test cases.

Test case Expected Result
empty list empty list
1 list with 1 item list with 1 item
1 list with repetitive items list with 1 item
1 list with repetitive items in various orders 2-item list, items in same order
1 list with the huge (arbitrary) number of repetitive items 1 list with 1 item
nested lists with all repetitive items 1 top-level lists with no nested list element conflict
non-lists InvalidTypeException raised

Test Cases for Fraction class

Equality operator (==)

Test case Expected Result
Fraction instance of a whole number and an integer of the same value Equal
Pairs of fractions of positive numerator and denominator and their respective reduced form Equal
Pairs of fractions of negative numerator and denominator and their respective reduced form Equal
Pairs of fractions of numerator and denominator and their negative reduced form Equal
Pairs of fractions and their reduced form of approximate value Not equal

Plus operator (+) and subtraction operator (-)

Test case Expected Result
Fraction plus zero The same fraction
Positive fractions plus positive ones Added positive fraction
Positive fractions plus greater negative ones (also subtracts) Subtracted negative fraction
Positive fractions plus lesser negative ones (also subtracts) Subtracted positive fraction
Negative fractions plus negative ones Added negative fraction

Multiplication operator (*)

Test case Expected Result
Fraction multiplied by zero Zero
Positive fraction multiplied by positive fraction Multiplied positive fraction
Negative fraction multiplied by positive fraction Multiplied negative fraction
Negative fraction multiplied by negative fraction Multiplied positive fraction

String representation and the constructor of the object (__str__ and __init__)

Test case Expected Result
Fraction without denominator of 1 or 0 Fraction representation in "numerator/denominator" form, e.g. 1/2, 1/3, -6/7
Fraction with denominator of 1 Whole number with value equal to that of the numerator
Fraction with denominator of 0 ZeroDivisionError raised
Indeterminate form of 1/0 as a representation of positive infinity math.inf
Indeterminate form of -1/0 as a representation of negative infinity -math.inf
Indeterminate form of 0/0 math.NaN