Update codebase to PHP 7.4 (#37)

Author: TavoNiievez

.github/workflows/main.yml

@@ -8,7 +8,7 @@ jobs:
 
     strategy:
       matrix:
-        php: [7.2, 7.3, 7.4, 8.0]
+        php: [7.4, 8.0, 8.1]
 
     steps:
     - name: Checkout code

RoboFile.php

@@ -1,11 +1,16 @@
 <?php
+
+declare(strict_types=1);
+
+use Robo\Tasks;
+
 require_once 'vendor/autoload.php';
 /**
  * This is project's console commands configuration for Robo task runner.
  *
- * @see http://robo.li/
+ * @see https://robo.li/
  */
-class RoboFile extends \Robo\Tasks
+class RoboFile extends Tasks
 {
     protected $docs = [
         'docs/Stub.md' => 'Codeception\Stub',
@@ -22,15 +27,15 @@ public function docs()
             $this->say("Here goes, $class");
             $this->taskGenDoc($file)
                 ->docClass($class)
-                ->filterMethods(function(\ReflectionMethod $method) {
+                ->filterMethods(function(ReflectionMethod $method) {
                     if ($method->isConstructor() or $method->isDestructor()) return false;
                     if (!$method->isPublic()) return false;
                     if (strpos($method->name, '_') === 0) return false;
                     if (strpos($method->name, 'stub') === 0) return false;
                     return true;
                 })
                 ->processMethodDocBlock(
-                    function (\ReflectionMethod $m, $doc) {
+                    function (ReflectionMethod $m, $doc) {
                         $doc = str_replace(array('@since'), array(' * available since version'), $doc);
                         $doc = str_replace(array(' @', "\n@"), array("  * ", "\n * "), $doc);
                         return $doc;

composer.json

@@ -11,5 +11,8 @@
     },
     "require": {
         "phpunit/phpunit": "^8.4 | ^9.0"
+    },
+    "require-dev": {
+        "consolidation/robo": "^3.0"
     }
 }

docs/Expected.md

@@ -18,11 +18,9 @@ $user = $this->make('User', [
      'someMethod' => function() {}
 ]);
 $user->someMethod();
-?>
 ```
 
  * `param mixed` $params
- * return StubMarshaler
 
 #### *public static* once($params = null) 
 Checks if a method has been invoked exactly one
@@ -44,7 +42,6 @@ $user = $this->make(
 );
 $userName = $user->getName();
 $this->assertEquals('Davert', $userName);
-?>
 ```
 Alternatively, a function can be passed as parameter:
 
@@ -55,8 +52,6 @@ Expected::once(function() { return Faker::name(); });
 
  * `param mixed` $params
 
- * return StubMarshaler
-
 #### *public static* atLeastOnce($params = null) 
 Checks if a method has been invoked at least one
 time.
@@ -77,7 +72,6 @@ $user = $this->make(
 $user->getName();
 $userName = $user->getName();
 $this->assertEquals('Davert', $userName);
-?>
 ```
 
 Alternatively, a function can be passed as parameter:
@@ -89,8 +83,6 @@ Expected::atLeastOnce(function() { return Faker::name(); });
 
  * `param mixed` $params
 
- * return StubMarshaler
-
 #### *public static* exactly($count, $params = null) 
 Checks if a method has been invoked a certain amount
 of times.
@@ -115,7 +107,6 @@ $user->getName();
 $user->getName();
 $userName = $user->getName();
 $this->assertEquals('Davert', $userName);
-?>
 ```
 Alternatively, a function can be passed as parameter:
 
@@ -124,9 +115,6 @@ Alternatively, a function can be passed as parameter:
 Expected::exactly(function() { return Faker::name() });
 ```
 
- * `param int` $count
  * `param mixed` $params
 
- * return StubMarshaler
-