Three Word Sequence Seeker

Purpose: Accept a file name(s), or content from stdin, and produce a list of the most common three-word sequence.

Usage

This assumes Python 3.x as Python 2.x is well past the end-of-life date.

# Ensure pep8 is available
$ pip -r requirements.txt
# Launch the demo script
$ python3 run_me.py moby-dick.txt

Example Output (top 5 lines):

the sperm whale - 86
of the whale - 78
the white whale - 71
one of the - 64
of the sea - 57

Tests

Manual Testing

# Ensure pep8 is available
$ pip -r requirements.txt
# Launch the demo script
$ python3 -m unittest test

Example Output:

.....
----------------------------------------------------------------------
Ran 5 tests in 0.919s

OK

Tests Covered

1. Verify that 100 results are returned using stdin
2. Verify the second result is exactly as expected using stdin
3. Verify that 100 results are returned using file reading
4. Verify the third result is exactly as expected using file reading
5. Verify pep8 compliance