Move assorted tests from integration to unit [MAILPOET-2009]

tests/unit/Util/SecurityTest.php

@@ -0,0 +1,36 @@
+<?php
+namespace MailPoet\Test\Util;
+
+use MailPoet\Util\Security;
+
+class SecurityTest extends \MailPoetUnitTest {
+
+  function testItCanGenerateARandomString() {
+    // it has a default length of 5
+    $hash = Security::generateRandomString();
+    expect(strlen($hash))->equals(5);
+
+    // it has a min length of 5
+    $short_hash = Security::generateRandomString(1);
+    expect(strlen($short_hash))->equals(5);
+
+    $long_hash = Security::generateRandomString(64);
+    expect(strlen($long_hash))->equals(64);
+
+    // expect only alphanumerical characters
+    expect(ctype_alnum($hash))->true();
+    expect(ctype_alnum($short_hash))->true();
+    expect(ctype_alnum($long_hash))->true();
+  }
+
+  function testItGeneratesRandomHash() {
+    $hash_1 = Security::generateHash();
+    $hash_2 = Security::generateHash();
+    expect($hash_1)->notEquals($hash_2);
+    expect(strlen($hash_1))->equals(Security::HASH_LENGTH);
+  }
+
+  function testItGeneratesRandomHashWithCustomLength() {
+    expect(strlen(Security::generateHash(10)))->equals(10);
+  }
+}