Add code coverage safeguards (#231)

Author: sanmai

Makefile

@@ -50,6 +50,7 @@ all: test
 ci-test: SILENT=
 ci-test: prerequisites
 	$(SILENT) $(PHP) $(PHPUNIT) $(PHPUNIT_COVERAGE_CLOVER) --group=$(PHPUNIT_GROUP)
+	$(SILENT) $(PHP) vendor/bin/coverage-check build/logs/clover.xml 100
 
 ci-analyze: SILENT=
 ci-analyze: prerequisites ci-phpunit ci-infection ci-phpstan ci-psalm
@@ -90,6 +91,7 @@ test-prerequisites: prerequisites composer.lock
 phpunit: cs
 	rm -fr build/logs/*
 	$(SILENT) $(PHP) $(PHPUNIT) $(PHPUNIT_ARGS)
+	$(SILENT) $(PHP) vendor/bin/coverage-check build/logs/clover.xml 100
 
 .PHONY: infection
 infection: phpunit

composer.json

@@ -14,6 +14,7 @@
     },
     "require-dev": {
         "ergebnis/composer-normalize": "^2.8",
+        "esi/phpunit-coverage-check": ">2",
         "friendsofphp/php-cs-fixer": "^3.17",
         "infection/infection": ">=0.30.3",
         "league/pipeline": "^0.3 || ^1.0",
@@ -22,6 +23,7 @@
         "phpstan/phpstan": "^2",
         "phpunit/phpunit": ">=9.4 <12",
         "sanmai/phpstan-rules": "^0.3.0",
+        "sanmai/phpunit-double-colon-syntax": "^0.1.1",
         "vimeo/psalm": ">=2"
     },
     "autoload": {