Matches regex rule

src/Rule/MatchesRegex.php

@@ -0,0 +1,52 @@
+<?php
+
+namespace Morebec\Validator\Rule;
+
+
+use Morebec\Validator\ValidationRuleInterface;
+
+class MatchesRegex implements ValidationRuleInterface
+{
+    /**
+     * @var string
+     */
+    private $regex;
+    /**
+     * @var string|null
+     */
+    private $message;
+
+    /**
+     * MatchesRegex constructor.
+     * @param string $regex
+     * @param string|null $message
+     */
+    public function __construct(
+        string $regex,
+        ?string $message = null
+    )
+    {
+        $this->regex = $regex;
+        $this->message = $message;
+    }
+
+    /**
+     * Validates a value according to this rule and returns if it is valid or not
+     * @param mixed $v
+     * @return bool true if valid, otherwise false
+     */
+    public function validate($v): bool
+    {
+        return preg_match($this->regex, $v) != 0?true:false;
+    }
+
+    /**
+     * Returns the message to be used in case the validation did not pass
+     * @param mixed $v the value that did not pass the validation
+     * @return string
+     */
+    public function getMessage($v): string
+    {
+        return $this->message?:"'${$v}' does not match provided regex";
+    }
+}

src/Rule/MaxLength.php

@@ -35,6 +35,6 @@ public function validate($v): bool
      */
     public function getMessage($v): string
     {
-        return $this->message ?: "The length of '{$v}' was expected to be at most {$this->length} characters long";
+        return $this->message?:"The length of '{$v}' was expected to be at most {$this->length} characters long";
     }
 }

tests/Rule/MatchesRegexTest.php

@@ -0,0 +1,18 @@
+<?php
+
+namespace Tests\Morebec\Validator\Rule;
+use Morebec\Validator\Rule\MatchesRegex;
+use PHPUnit\Framework\TestCase;
+
+
+class MatchesRegexTest extends TestCase
+{
+    public function testValidate(){
+        $ruleFirst = new MatchesRegex("/[0-9]/");
+        $ruleSecond = new MatchesRegex("/[0-9]/","Custom message");
+
+        $this->assertTrue($ruleFirst->validate("hello1"));
+        $this->assertFalse($ruleFirst->validate("hello"));
+        $this->assertEquals("Custom message",$ruleSecond->getMessage("hello"));
+    }
+}

tests/Rule/MaxLengthTest.php

@@ -10,16 +10,16 @@ class MaxLengthTest extends TestCase
     public function testValidate()
     {
         $firstRule = new MaxLength(5);
-        $secondRule = new MaxLength(5, 'Custom message');
-        $this->assertTrue($firstRule->validate('test'));
-        $this->assertFalse($firstRule->validate('long test'));
+        $secondRule = new MaxLength(5,"Custom message");
+        $this->assertTrue($firstRule->validate("test"));
+        $this->assertFalse($firstRule->validate("long test"));
         $this->assertEquals(
             "The length of 'arr' was expected to be at most 5 characters long",
-            $firstRule->getMessage('arr')
+            $firstRule->getMessage("arr")
         );
         $this->assertEquals(
-            'Custom message',
-            $secondRule->getMessage('arr')
+            "Custom message",
+            $secondRule->getMessage("arr")
         );
     }
-}
+}