Enhancement: Run end-to-end test asserting HTTP response status code

.github/workflows/integrate.yaml

@@ -27,7 +27,7 @@ jobs:
         uses: "shivammathur/setup-php@v2"
         with:
           coverage: "none"
-          extensions: "none, json, mbstring, tokenizer"
+          extensions: "none, curl, json, mbstring, tokenizer"
           php-version: "${{ matrix.php-version }}"
 
       - name: "Set up problem matchers for PHP"
@@ -64,6 +64,9 @@ jobs:
         php-version:
           - "8.2"
 
+    env:
+      HTTP_HOST: "localhost:8080"
+
     steps:
       - name: "Checkout"
         uses: "actions/checkout@v4"
@@ -72,11 +75,14 @@ jobs:
         uses: "shivammathur/setup-php@v2"
         with:
           coverage: "none"
-          extensions: "none"
+          extensions: "none, curl"
           php-version: "${{ matrix.php-version }}"
 
       - name: "Set up problem matchers for PHP"
         run: "echo \"::add-matcher::${{ runner.tool_cache }}/php.json\""
 
+      - name: "Start built-in web server for PHP"
+        run: "php -S ${{ env.HTTP_HOST }} .router.php &"
+
       - name: "Run tests"
         run: "php tests/run-tests.php -j3 -q --show-diff"

.gitignore

@@ -4,4 +4,6 @@ backend/mirror.gif
 backend/mirror.png
 backend/mirror.jpg
 backend/GeoIP.dat
-.php-cs-fixer.cache
+tests/server.log
+tests/server.pid
+\.php-cs-fixer.cache

Makefile

@@ -1,3 +1,7 @@
+.EXPORT_ALL_VARIABLES:
+
+HTTP_HOST:=localhost:8080
+
 .PHONY: help
 help: ## Displays this list of targets with descriptions
 	@grep -E '^[a-zA-Z0-9_-]+:.*?## .*$$' $(MAKEFILE_LIST) | sort | awk 'BEGIN {FS = ":.*?## "}; {printf "\033[32m%-30s\033[0m %s\n", $$1, $$2}'
@@ -7,8 +11,8 @@ coding-standards: vendor ## Fixes code style issues with friendsofphp/php-cs-fix
 	vendor/bin/php-cs-fixer fix --config=.php-cs-fixer.php --diff --verbose
 
 .PHONY: tests
-tests: ## Runs tests
-	php tests/run-tests.php -j3 -q
+tests: vendor ## Runs tests
+	tests/server start; php tests/run-tests.php -j3 -q; tests/server stop
 
 vendor: composer.json composer.lock
 	composer validate --strict

composer.json

@@ -11,6 +11,7 @@
         "php": "~8.2.0"
     },
     "require-dev": {
+        "ext-curl": "*",
         "friendsofphp/php-cs-fixer": "^3.40.2"
     },
     "autoload": {