Python Test Case Generator

Python Test Case Generator that can generate a test case from Python expression.

This tool allows you to generate a test case by writing Python expressions directly.

Installation

$ pip install python-testcase-generator

Usage

By calling python-testcase-generator (or pytcgen) with no parameters, a test case is generated from stdin and output as stdout.

$ echo "[i**2 for i in range(9)]" | python-testcase-generator
0 1 4 9 16 25 36 49 64

To generate a test case from a file, you can specify input file path with -i parameter.
For example, to generate a test case from the file below:

$ cat test.txt
1 2 3 "a" ["b", "c"]
[1,2,3]*2 # comment
10*"a" 10**9+7

% # You can write expressions including space by using backquote (`).
% # It does not mean repr() in Python 2. (special specification in this tool)
`"b" * 15` `1 + 2 * 3`

% # You can use Python statement by beginning a line with percent sign (%).
% # Any character is not output in Python statement except print statement.
% x = [1, 2]; y = [9, 3, 4, "d"]
x[0] x y*2
{4, x[1], 6}

% # import and use library
% import random
% A=[random.randint(1, 10) for i in range(3)]
A

% # to_s function (builtin function in this tool)
% B=[[1,2,3],[4,5],[6,[7,8]]]
to_s(A, "\n")
to_s(B, ["\n","-"])

You can specify input file path as follows:

$ python-testcase-generator -i test.txt
1 2 3 a b c
1 2 3 1 2 3
aaaaaaaaaa 1000000007

bbbbbbbbbbbbbbb 7

1 1 2 9 3 4 d 9 3 4 d
2 4 6

7 5 1

7
5
1
1-2-3
4-5
6-7 8

Also, to write generated a test case to a file, specify output file path with -o parameter.

$ python-testcase-generator -i test.txt -o output.txt