From fa4b9489d04197396e6f060cfa14649de7adc937 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20L=C3=BCck?= <christian@clue.engineering>
Date: Sat, 22 Apr 2023 18:52:12 +0200
Subject: [PATCH] Update test suite to ensure 100% code coverage

---
 .github/workflows/ci.yml | 10 ++++++++--
 README.md                |  9 +++++++++
 2 files changed, 17 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ec875c8..d278abc 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -30,7 +30,13 @@ jobs:
           coverage: xdebug
           ini-file: development
       - run: composer install
-      - run: vendor/bin/phpunit --coverage-text
+      - run: vendor/bin/phpunit --coverage-text --coverage-clover=clover.xml
         if: ${{ matrix.php >= 7.3 }}
-      - run: vendor/bin/phpunit --coverage-text -c phpunit.xml.legacy
+      - run: vendor/bin/phpunit --coverage-text --coverage-clover=clover.xml -c phpunit.xml.legacy
         if: ${{ matrix.php < 7.3 }}
+      - name: Check 100% code coverage
+        shell: php {0}
+        run: |
+          <?php
+          $metrics = simplexml_load_file('clover.xml')->project->metrics;
+          exit((int) $metrics['statements'] === (int) $metrics['coveredstatements'] ? 0 : 1);
diff --git a/README.md b/README.md
index 641750f..c32c57c 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,7 @@
 # clue/reactphp-mq
 
 [![CI status](https://github.com/clue/reactphp-mq/actions/workflows/ci.yml/badge.svg)](https://github.com/clue/reactphp-mq/actions)
+[![code coverage](https://img.shields.io/badge/code%20coverage-100%25-success)](#tests)
 [![installs on Packagist](https://img.shields.io/packagist/dt/clue/mq-react?color=blue&label=installs%20on%20Packagist)](https://packagist.org/packages/clue/mq-react)
 
 Mini Queue, the lightweight in-memory message queue to concurrently do many (but not too many) things at once,
@@ -509,6 +510,14 @@ To run the test suite, go to the project root and run:
 vendor/bin/phpunit
 ```
 
+The test suite is set up to always ensure 100% code coverage across all
+supported environments. If you have the Xdebug extension installed, you can also
+generate a code coverage report locally like this:
+
+```bash
+XDEBUG_MODE=coverage vendor/bin/phpunit --coverage-text
+```
+
 ## License
 
 This project is released under the permissive [MIT license](LICENSE).