feat: adds --version option

composer.json

@@ -31,6 +31,7 @@
         },
         "files": [
             "src/globals.php",
+            "src/Pest.php",
             "compiled/globals.php"
         ]
     },
@@ -67,7 +68,7 @@
         "compile": "@php ./scripts/compile.php",
         "lint": "rector process src && php-cs-fixer fix -v",
         "test:lint": "php-cs-fixer fix -v --dry-run && rector process src --dry-run",
-        "test:types": "phpstan analyse --ansi",
+        "test:types": "phpstan analyse --ansi --memory-limit=0",
         "test:unit": "php bin/pest --colors=always --exclude-group=integration",
         "test:integration": "php bin/pest --colors=always --group=integration",
         "update:snapshots": "REBUILD_SNAPSHOTS=true php bin/pest --colors=always",
@@ -82,6 +83,11 @@
         "branch-alias": {
             "dev-master": "0.2.x-dev"
         },
+        "pest": {
+            "plugins": [
+                "Pest\\Plugins\\Version"
+            ]
+        },
         "laravel": {
             "providers": [
                 "Pest\\Laravel\\PestServiceProvider"

src/Pest.php

@@ -0,0 +1,10 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Pest;
+
+function version(): string
+{
+    return '0.2.2';
+}

src/Plugins/Version.php

@@ -0,0 +1,39 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Pest\Plugins;
+
+use Pest\Contracts\Plugins\HandlesArguments;
+use function Pest\version;
+use Symfony\Component\Console\Output\OutputInterface;
+
+/**
+ * @internal
+ */
+final class Version implements HandlesArguments
+{
+    /**
+     * @var OutputInterface
+     */
+    private $output;
+
+    /**
+     * Creates a new instance of the plugin.
+     */
+    public function __construct(OutputInterface $output)
+    {
+        $this->output = $output;
+    }
+
+    public function handleArguments(array $arguments): array
+    {
+        if (in_array('--version', $arguments, true)) {
+            $this->output->writeln(
+                sprintf('Pest    %s', version()),
+            );
+        }
+
+        return $arguments;
+    }
+}

tests/.snapshots/success.txt

@@ -88,12 +88,12 @@
 
    WARN  Tests\Features\Skip
   ✓ it do not skips
-  s it skips with truthy
-  s it skips with truthy condition by default
-  s it skips with message → skipped because bar
-  s it skips with truthy closure condition
+  - it skips with truthy
+  - it skips with truthy condition by default
+  - it skips with message → skipped because bar
+  - it skips with truthy closure condition
   ✓ it do not skips with falsy closure condition
-  s it skips with condition and message → skipped because foo
+  - it skips with condition and message → skipped because foo
 
    PASS  Tests\Features\Test
   ✓ a test
@@ -135,6 +135,10 @@
   ✓ it throws exception when `process isolation` is true
   ✓ it do not throws exception when `process isolation` is false
 
+   PASS  Tests\Unit\Plugins\Version
+  ✓ it outputs the version when --version is used
+  ✓ it do not outputs version when --version is not used
+
    PASS  Tests\Unit\Support\Backtrace
   ✓ it gets file name from called file
 
@@ -161,7 +165,7 @@
   ✓ it disable decorating printer when colors is set to never
 
    WARN  Tests\Visual\Success
-  s visual snapshot of test suite on success
+  - visual snapshot of test suite on success
 
-  Tests:  6 skipped, 94 passed
-  Time:   3.73s
+  Tests:  6 skipped, 96 passed
+  Time:   3.56s

tests/Unit/Plugins/Version.php

@@ -0,0 +1,20 @@
+<?php
+
+use Pest\Plugins\Version;
+use Symfony\Component\Console\Output\BufferedOutput;
+
+it('outputs the version when --version is used', function () {
+    $output = new BufferedOutput();
+    $plugin = new Version($output);
+
+    $plugin->handleArguments(['foo', '--version']);
+    assertEquals("Pest    0.2.2\n", $output->fetch());
+});
+
+it('do not outputs version when --version is not used', function () {
+    $output = new BufferedOutput();
+    $plugin = new Version($output);
+
+    $plugin->handleArguments(['foo', 'bar']);
+    assertEquals('', $output->fetch());
+});