From 2d3f62c85d936b431bef2f442ef3203593eba08a Mon Sep 17 00:00:00 2001
From: Brooke Bryan <brooke@bajb.net>
Date: Tue, 6 Oct 2015 13:11:28 +0100
Subject: [PATCH] Pattern verify

---
 src/Strings.php       | 19 +++++++++++++++++++
 tests/StringsTest.php | 19 +++----------------
 2 files changed, 22 insertions(+), 16 deletions(-)

diff --git a/src/Strings.php b/src/Strings.php
index 1a0d2bf..02ac2e0 100644
--- a/src/Strings.php
+++ b/src/Strings.php
@@ -314,6 +314,25 @@ public static function pattern($pattern = 'XX00-XX00-00XX-00XX-XXXX')
     return $return;
   }
 
+  public static function verifyPattern($template, $pattern)
+  {
+    $regexPattern = str_replace(
+      ['X', 'x', '0', '5', '?', '!', '*'],
+      [
+        '[A-Z]',
+        '[a-z]',
+        '[0-9]',
+        '[0-5]',
+        '[a-z0-9]',
+        '[A-Z0-9]',
+        '[a-zA-Z0-9]'
+      ],
+      $template
+    );
+
+    return preg_match("/$regexPattern/", $pattern) === 1;
+  }
+
   /**
    * Take a short extract from a string.
    *
diff --git a/tests/StringsTest.php b/tests/StringsTest.php
index 46ba58a..e45a175 100644
--- a/tests/StringsTest.php
+++ b/tests/StringsTest.php
@@ -606,24 +606,11 @@ public function testStripStart()
    */
   public function testPattern($pattern)
   {
-    $regexPattern = str_replace(
-      ['X', 'x', '0', '5', '?', '!', '*'],
-      [
-        '[A-Z]',
-        '[a-z]',
-        '[0-9]',
-        '[0-5]',
-        '[a-z0-9]',
-        '[A-Z0-9]',
-        '[a-zA-Z0-9]'
-      ],
-      $pattern
-    );
-
     for($i = 0; $i < 100; $i++)
     {
-      $generated = Strings::pattern($pattern);
-      $this->assertRegExp("/$regexPattern/", $generated);
+      $this->assertTrue(
+        Strings::verifyPattern($pattern, Strings::pattern($pattern))
+      );
     }
   }