Allow Infection test suite to be executed in parallel using Paratest (#…

…1544)

* Allow Infection test suite to be executed in parallel using Paratest

2 goals here:

1. This is much faster (5 seconds for `vendor/bin/paratest` instead of 24 seconds for `vendor/bin/phpunit`)
2. This is the first step for supporting new Test Framework Adapter - Paratest, to run initial tests suite run using `paratest` instead of `phpunit`

For now, just for the local usage

* Fix test, add the expected makefile help output for `test-unit-parallel`

* Set min version of `thecodingmachine/safe` to 1.1.3 because of thecodingmachine/safe#225 (fixed in 1.1.3)

* Set min version of `justinrainbow/json-schema` to 5.2.10 because of api-platform/api-platform#1712

* Call `$process->inheritEnvironmentVariables();` only when it exists and is not deprecated

Otherwise, it does not make sense because starting from `syfmony/console` 4.4 environment variable are inhereted automatically, and calling deprecated methods fails the tests

* Fix help text indentation

Makefile

@@ -27,6 +27,7 @@ PSALM=./.tools/psalm
 PSALM_URL="https://github.com/vimeo/psalm/releases/download/4.1.1/psalm.phar"
 
 PHPUNIT=vendor/phpunit/phpunit/phpunit
+PARATEST=vendor/bin/paratest --runner=WrapperRunner
 
 INFECTION=./build/infection.phar
 
@@ -133,6 +134,11 @@ test-unit:	 	## Runs the unit tests
 test-unit: $(PHPUNIT)
 	$(PHPUNIT) --group $(PHPUNIT_GROUP)
 
+.PHONY: test-unit-parallel
+test-unit-parallel:	## Runs the unit tests in parallel
+test-unit-parallel:
+	$(PARATEST)
+
 .PHONY: test-unit-docker
 test-unit-docker:	## Runs the unit tests on the different Docker platforms
 test-unit-docker: test-unit-74-docker test-unit-80-docker

composer.json

@@ -50,7 +50,7 @@
         "infection/abstract-testframework-adapter": "^0.3.1",
         "infection/extension-installer": "^0.1.0",
         "infection/include-interceptor": "^0.2.4",
-        "justinrainbow/json-schema": "^5.2",
+        "justinrainbow/json-schema": "^5.2.10",
         "nikic/php-parser": "^4.10.3",
         "ocramius/package-versions": "^1.9.0 || ^2.0",
         "ondram/ci-detector": "^3.3.0",
@@ -62,7 +62,7 @@
         "symfony/filesystem": "^3.4.29 || ^4.1.19 || ^5.0",
         "symfony/finder": "^3.4.29 || ^4.1.19 || ^5.0",
         "symfony/process": "^3.4.29 || ^4.1.19 || ^5.0",
-        "thecodingmachine/safe": "^1.0",
+        "thecodingmachine/safe": "^1.1.3",
         "webmozart/assert": "^1.3",
         "webmozart/path-util": "^2.3"
     },
@@ -72,6 +72,7 @@
     },
     "require-dev": {
         "ext-simplexml": "*",
+        "brianium/paratest": "^6.3",
         "helmich/phpunit-json-assert": "^3.0",
         "phpspec/prophecy-phpunit": "^2.0",
         "phpstan/extension-installer": "^1.0",