The one of the simplest way to check your bash/sh scripts is run it and check it output or run it and check the result. This tutorial shows how-to use bashtest tool for testing your scripts.
Write simple util
We have a simple stat.sh script:
#!/usr/bin/env bash if [ -z "$1" ] then DIR=./ else DIR=$1 fi echo "Evaluate *.py statistics" FILES=$(find $DIR -name '*.py' | wc -l) LINES=$((find $DIR -name '*.py' -print0 | xargs -0 cat) | wc -l) echo "PYTHON FILES: $FILES" echo "PYTHON LINES: $LINES"
This script evaluate the number of python files and the number of python code lines in the files. We can use it like ./stat.sh <dir>
Then make test suits for stat.sh. We make a directory testsuit which contain test python files.
import foo print(foo)
BAR = 1 BUZ = BAR + 2
Ok! Our test suit is ready! We have 2 python files which contains 4 lines of code.
Lets write tests. We just write a shell command for testing our work.
Create file tests.bashtest:
$ ./stat.sh testsuit/ Evaluate *.py statistics PYTHON FILES: 2 PYTHON LINES: 4
This is our test! This is simple. Try to run it.
# install bashtest if required! $ pip install bashtest
# run tests $ bashtest *.bashtest 1 items passed all tests: 1 tests in tests.bashtest 1 tests in 1 items. 1 passed and 0 failed. Test passed.
Thats all. We wrote one test. You can write more tests if you want.
$ ls testsuit/ foo.py main.py $ ./stat.sh testsuit/ Evaluate *.py statistics PYTHON FILES: 2 PYTHON LINES: 4
And run tests again:
$ bashtest *.bashtest 1 items passed all tests: 2 tests in tests.bashtest 2 tests in 1 items. 2 passed and 0 failed. Test passed.