mini-grep

Out of the 3 choices, mini-grep was chosen. Two files textfile1 and textfile2 are included for testing purposes.

Tests

1. To check that the regex pattern can't be invalid, we can run

python3 mini_grep -e "[" textfile1 textfile2 which returns ERROR: regex pattern [ is invalid!

2. To check that the code is PEP8 compliant we can use pylint.

$ python3 -m pylint mini_grep returns

--------------------------------------------------------------------
Your code has been rated at 10.00/10 (previous run: 10.00/10, +0.00)

3. To check that the regex matching inside files works, we can run python3 mini_grep -e "Dylan" textfile1 textfile2 which returns

2: Just say the word and I’ll get you a coffee cozy literally right now, Dylan.
4: Who is Dylan?
3: This line in textfile2 is about Dylan, since he wrote it.

4. To check that the quiet option works, we can add it to the command ran on step 3 like so:

python3 mini_grep -q -e "Dylan" textfile1 textfile2 which returns

Just say the word and I’ll get you a coffee cozy literally right now, Dylan.
Who is Dylan?
This line in textfile2 is about Dylan, since he wrote it.

5. We can test that the stdin line matching works by running: python3 mini_grep -e "^Dylan$" which returns Enter your text below and then we can enter from the keyboard these three lines

This is Dylan
Dylan
Dylan is not here

then we have to signal EOF (e.g. by using Ctrl+D on Linux) which gives us the output

2: Dylan