Understand Code coverage

Reference:

• https://viblo.asia/p/gioi-thieu-khai-niem-test-coverage-c0c1c2-ORNZqgyq50n
• https://www.hitex.com/fileadmin/documents/tools/dynamic/tessy/WP-TESSY-Is-100-Percent-Code-Coverage-Enough.pdf
• https://ece.uwaterloo.ca/~agurfink/stqam/assets/pdf/W03-Coverage.pdf

Tasks:

• Learn to generate code coverage
• Write C0 tests
• Write C1 tests
• Write C2 tests

Run tests:

Start docker:

docker-compose up -d

Install composer:

docker-compose exec php composer install

Run unit tests: #1

See phpunit.xml to see test suites and docs to find how to run.