diff --git a/.travis.yml b/.travis.yml
index a4b237c..d823727 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,5 +1,8 @@
 language: php
 
+services:
+  - mysql
+
 sudo: false
 
 php:
diff --git a/composer.json b/composer.json
index 93c8840..c07e497 100644
--- a/composer.json
+++ b/composer.json
@@ -17,6 +17,11 @@
 			"role": "Author"
 		}
 	],
+	"config": {
+		"platform": {
+			"php": "7.1.8"
+		}
+	},
 	"require": {
 		"php": "^7.1",
 		"composer/installers": "*",
@@ -29,7 +34,7 @@
 		"openbuildings/kohana-test-bootstrap": "^0.2",
 		"kohana/auth": "^3.3",
 		"openbuildings/jam-auth": "^0.4.3",
-		"phpunit/phpunit": "^6.1"
+		"phpunit/phpunit": "^7"
 	},
 	"autoload-dev": {
 		"classmap": ["tests/classes"]
diff --git a/composer.lock b/composer.lock
index f38c23e..5dd235e 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "8c6b014d76803c9184f6b7bc2c401f06",
+    "content-hash": "3ce49ffa5609b7c0d8bf93e97b7fbeb5",
     "packages": [
         {
             "name": "clippings/freezable",
@@ -50,16 +50,16 @@
         },
         {
             "name": "clue/stream-filter",
-            "version": "v1.4.0",
+            "version": "v1.4.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/clue/php-stream-filter.git",
-                "reference": "d80fdee9b3a7e0d16fc330a22f41f3ad0eeb09d0"
+                "reference": "5a58cc30a8bd6a4eb8f856adf61dd3e013f53f71"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/clue/php-stream-filter/zipball/d80fdee9b3a7e0d16fc330a22f41f3ad0eeb09d0",
-                "reference": "d80fdee9b3a7e0d16fc330a22f41f3ad0eeb09d0",
+                "url": "https://api.github.com/repos/clue/php-stream-filter/zipball/5a58cc30a8bd6a4eb8f856adf61dd3e013f53f71",
+                "reference": "5a58cc30a8bd6a4eb8f856adf61dd3e013f53f71",
                 "shasum": ""
             },
             "require": {
@@ -74,7 +74,7 @@
                     "Clue\\StreamFilter\\": "src/"
                 },
                 "files": [
-                    "src/functions.php"
+                    "src/functions_include.php"
                 ]
             },
             "notification-url": "https://packagist.org/downloads/",
@@ -98,20 +98,20 @@
                 "stream_filter_append",
                 "stream_filter_register"
             ],
-            "time": "2017-08-18T09:54:01+00:00"
+            "time": "2019-04-09T12:31:48+00:00"
         },
         {
             "name": "composer/installers",
-            "version": "v1.6.0",
+            "version": "v1.8.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/composer/installers.git",
-                "reference": "cfcca6b1b60bc4974324efb5783c13dca6932b5b"
+                "reference": "7d610d50aae61ae7ed6675e58efeabdf279bb5e3"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/composer/installers/zipball/cfcca6b1b60bc4974324efb5783c13dca6932b5b",
-                "reference": "cfcca6b1b60bc4974324efb5783c13dca6932b5b",
+                "url": "https://api.github.com/repos/composer/installers/zipball/7d610d50aae61ae7ed6675e58efeabdf279bb5e3",
+                "reference": "7d610d50aae61ae7ed6675e58efeabdf279bb5e3",
                 "shasum": ""
             },
             "require": {
@@ -159,6 +159,7 @@
                 "Kanboard",
                 "Lan Management System",
                 "MODX Evo",
+                "MantisBT",
                 "Mautic",
                 "Maya",
                 "OXID",
@@ -167,6 +168,7 @@
                 "RadPHP",
                 "SMF",
                 "Thelia",
+                "Whmcs",
                 "WolfCMS",
                 "agl",
                 "aimeos",
@@ -189,6 +191,7 @@
                 "installer",
                 "itop",
                 "joomla",
+                "known",
                 "kohana",
                 "laravel",
                 "lavalite",
@@ -211,6 +214,7 @@
                 "shopware",
                 "silverstripe",
                 "sydes",
+                "sylius",
                 "symfony",
                 "typo3",
                 "wordpress",
@@ -218,7 +222,7 @@
                 "zend",
                 "zikula"
             ],
-            "time": "2018-08-27T06:10:37+00:00"
+            "time": "2020-02-07T10:39:20+00:00"
         },
         {
             "name": "desarrolla2/cache",
@@ -273,44 +277,46 @@
         },
         {
             "name": "guzzlehttp/guzzle",
-            "version": "6.3.3",
+            "version": "6.5.2",
             "source": {
                 "type": "git",
                 "url": "https://github.com/guzzle/guzzle.git",
-                "reference": "407b0cb880ace85c9b63c5f9551db498cb2d50ba"
+                "reference": "43ece0e75098b7ecd8d13918293029e555a50f82"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/guzzle/guzzle/zipball/407b0cb880ace85c9b63c5f9551db498cb2d50ba",
-                "reference": "407b0cb880ace85c9b63c5f9551db498cb2d50ba",
+                "url": "https://api.github.com/repos/guzzle/guzzle/zipball/43ece0e75098b7ecd8d13918293029e555a50f82",
+                "reference": "43ece0e75098b7ecd8d13918293029e555a50f82",
                 "shasum": ""
             },
             "require": {
+                "ext-json": "*",
                 "guzzlehttp/promises": "^1.0",
-                "guzzlehttp/psr7": "^1.4",
+                "guzzlehttp/psr7": "^1.6.1",
                 "php": ">=5.5"
             },
             "require-dev": {
                 "ext-curl": "*",
                 "phpunit/phpunit": "^4.8.35 || ^5.7 || ^6.4 || ^7.0",
-                "psr/log": "^1.0"
+                "psr/log": "^1.1"
             },
             "suggest": {
+                "ext-intl": "Required for Internationalized Domain Name (IDN) support",
                 "psr/log": "Required for using the Log middleware"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "6.3-dev"
+                    "dev-master": "6.5-dev"
                 }
             },
             "autoload": {
-                "files": [
-                    "src/functions_include.php"
-                ],
                 "psr-4": {
                     "GuzzleHttp\\": "src/"
-                }
+                },
+                "files": [
+                    "src/functions_include.php"
+                ]
             },
             "notification-url": "https://packagist.org/downloads/",
             "license": [
@@ -334,7 +340,7 @@
                 "rest",
                 "web service"
             ],
-            "time": "2018-04-22T15:46:56+00:00"
+            "time": "2019-12-23T11:57:10+00:00"
         },
         {
             "name": "guzzlehttp/promises",
@@ -389,33 +395,37 @@
         },
         {
             "name": "guzzlehttp/psr7",
-            "version": "1.5.2",
+            "version": "1.6.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/guzzle/psr7.git",
-                "reference": "9f83dded91781a01c63574e387eaa769be769115"
+                "reference": "239400de7a173fe9901b9ac7c06497751f00727a"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/guzzle/psr7/zipball/9f83dded91781a01c63574e387eaa769be769115",
-                "reference": "9f83dded91781a01c63574e387eaa769be769115",
+                "url": "https://api.github.com/repos/guzzle/psr7/zipball/239400de7a173fe9901b9ac7c06497751f00727a",
+                "reference": "239400de7a173fe9901b9ac7c06497751f00727a",
                 "shasum": ""
             },
             "require": {
                 "php": ">=5.4.0",
                 "psr/http-message": "~1.0",
-                "ralouphie/getallheaders": "^2.0.5"
+                "ralouphie/getallheaders": "^2.0.5 || ^3.0.0"
             },
             "provide": {
                 "psr/http-message-implementation": "1.0"
             },
             "require-dev": {
+                "ext-zlib": "*",
                 "phpunit/phpunit": "~4.8.36 || ^5.7.27 || ^6.5.8"
             },
+            "suggest": {
+                "zendframework/zend-httphandlerrunner": "Emit PSR-7 responses"
+            },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.5-dev"
+                    "dev-master": "1.6-dev"
                 }
             },
             "autoload": {
@@ -452,7 +462,7 @@
                 "uri",
                 "url"
             ],
-            "time": "2018-12-04T20:46:45+00:00"
+            "time": "2019-07-01T23:21:34+00:00"
         },
         {
             "name": "kohana/auth",
@@ -744,16 +754,16 @@
         },
         {
             "name": "moneyphp/money",
-            "version": "v3.2.1",
+            "version": "v3.3.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/moneyphp/money.git",
-                "reference": "f6085de6c565e98d2f9a7311a605987b54e06d5e"
+                "reference": "2a9b09bb5435aa54a404f626b9284ae64cb88af2"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/moneyphp/money/zipball/f6085de6c565e98d2f9a7311a605987b54e06d5e",
-                "reference": "f6085de6c565e98d2f9a7311a605987b54e06d5e",
+                "url": "https://api.github.com/repos/moneyphp/money/zipball/2a9b09bb5435aa54a404f626b9284ae64cb88af2",
+                "reference": "2a9b09bb5435aa54a404f626b9284ae64cb88af2",
                 "shasum": ""
             },
             "require": {
@@ -768,12 +778,12 @@
                 "ext-intl": "*",
                 "florianv/exchanger": "^1.0",
                 "florianv/swap": "^3.0",
-                "leanphp/phpspec-code-coverage": "^3.0 || ^4.0",
-                "moneyphp/iso-currencies": "^3.0",
+                "friends-of-phpspec/phpspec-code-coverage": "^3.1.1 || ^4.3",
+                "moneyphp/iso-currencies": "^3.2.1",
                 "php-http/message": "^1.4",
                 "php-http/mock-client": "^1.0.0",
-                "phpspec/phpspec": "^3.0",
-                "phpunit/phpunit": "^5.7 || ^6.4 || ^7.0",
+                "phpspec/phpspec": "^3.4.3",
+                "phpunit/phpunit": "^5.7.27 || ^6.5.14 || ^7.5.18 || ^8.5",
                 "psr/cache": "^1.0",
                 "symfony/phpunit-bridge": "^4"
             },
@@ -788,7 +798,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "3.0-dev"
+                    "dev-master": "3.x-dev"
                 }
             },
             "autoload": {
@@ -801,15 +811,15 @@
                 "MIT"
             ],
             "authors": [
-                {
-                    "name": "Márk Sági-Kazár",
-                    "email": "mark.sagikazar@gmail.com"
-                },
                 {
                     "name": "Mathias Verraes",
                     "email": "mathias@verraes.net",
                     "homepage": "http://verraes.net"
                 },
+                {
+                    "name": "Márk Sági-Kazár",
+                    "email": "mark.sagikazar@gmail.com"
+                },
                 {
                     "name": "Frederik Bosch",
                     "email": "f.bosch@genkgo.nl"
@@ -822,7 +832,7 @@
                 "money",
                 "vo"
             ],
-            "time": "2019-02-07T18:01:35+00:00"
+            "time": "2019-12-27T21:58:31+00:00"
         },
         {
             "name": "omnipay/common",
@@ -942,6 +952,7 @@
                 }
             ],
             "description": "Flexible storage provider for files (rackspace, aws, ftp, local)",
+            "abandoned": true,
             "time": "2014-07-08T12:07:06+00:00"
         },
         {
@@ -1388,28 +1399,29 @@
         },
         {
             "name": "php-http/discovery",
-            "version": "1.6.1",
+            "version": "1.7.4",
             "source": {
                 "type": "git",
                 "url": "https://github.com/php-http/discovery.git",
-                "reference": "684855f2c2e9d0a61868b8f8d6bd0295c8a4b651"
+                "reference": "82dbef649ccffd8e4f22e1953c3a5265992b83c0"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/php-http/discovery/zipball/684855f2c2e9d0a61868b8f8d6bd0295c8a4b651",
-                "reference": "684855f2c2e9d0a61868b8f8d6bd0295c8a4b651",
+                "url": "https://api.github.com/repos/php-http/discovery/zipball/82dbef649ccffd8e4f22e1953c3a5265992b83c0",
+                "reference": "82dbef649ccffd8e4f22e1953c3a5265992b83c0",
                 "shasum": ""
             },
             "require": {
-                "php": "^5.5 || ^7.0"
+                "php": "^7.1"
             },
             "conflict": {
                 "nyholm/psr7": "<1.0"
             },
             "require-dev": {
+                "akeneo/phpspec-skip-example-extension": "^4.0",
                 "php-http/httplug": "^1.0 || ^2.0",
                 "php-http/message-factory": "^1.0",
-                "phpspec/phpspec": "^2.4",
+                "phpspec/phpspec": "^5.1",
                 "puli/composer-plugin": "1.0.0-beta10"
             },
             "suggest": {
@@ -1419,7 +1431,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.5-dev"
+                    "dev-master": "1.7-dev"
                 }
             },
             "autoload": {
@@ -1448,7 +1460,7 @@
                 "message",
                 "psr7"
             ],
-            "time": "2019-02-23T07:42:53+00:00"
+            "time": "2020-01-03T11:25:47+00:00"
         },
         {
             "name": "php-http/guzzle6-adapter",
@@ -1515,16 +1527,16 @@
         },
         {
             "name": "php-http/httplug",
-            "version": "v2.0.0",
+            "version": "2.1.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/php-http/httplug.git",
-                "reference": "b3842537338c949f2469557ef4ad4bdc47b58603"
+                "reference": "72d2b129a48f0490d55b7f89be0d6aa0597ffb06"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/php-http/httplug/zipball/b3842537338c949f2469557ef4ad4bdc47b58603",
-                "reference": "b3842537338c949f2469557ef4ad4bdc47b58603",
+                "url": "https://api.github.com/repos/php-http/httplug/zipball/72d2b129a48f0490d55b7f89be0d6aa0597ffb06",
+                "reference": "72d2b129a48f0490d55b7f89be0d6aa0597ffb06",
                 "shasum": ""
             },
             "require": {
@@ -1534,13 +1546,13 @@
                 "psr/http-message": "^1.0"
             },
             "require-dev": {
-                "henrikbjorn/phpspec-code-coverage": "^1.0",
-                "phpspec/phpspec": "^2.4"
+                "friends-of-phpspec/phpspec-code-coverage": "^4.1",
+                "phpspec/phpspec": "^4.3.4|^5.0|^6.0"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "2.0.x-dev"
+                    "dev-master": "2.x-dev"
                 }
             },
             "autoload": {
@@ -1568,25 +1580,25 @@
                 "client",
                 "http"
             ],
-            "time": "2018-10-31T09:14:44+00:00"
+            "time": "2019-12-27T10:07:11+00:00"
         },
         {
             "name": "php-http/message",
-            "version": "1.7.2",
+            "version": "1.8.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/php-http/message.git",
-                "reference": "b159ffe570dffd335e22ef0b91a946eacb182fa1"
+                "reference": "ce8f43ac1e294b54aabf5808515c3554a19c1e1c"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/php-http/message/zipball/b159ffe570dffd335e22ef0b91a946eacb182fa1",
-                "reference": "b159ffe570dffd335e22ef0b91a946eacb182fa1",
+                "url": "https://api.github.com/repos/php-http/message/zipball/ce8f43ac1e294b54aabf5808515c3554a19c1e1c",
+                "reference": "ce8f43ac1e294b54aabf5808515c3554a19c1e1c",
                 "shasum": ""
             },
             "require": {
                 "clue/stream-filter": "^1.4",
-                "php": "^5.4 || ^7.0",
+                "php": "^7.1",
                 "php-http/message-factory": "^1.0.2",
                 "psr/http-message": "^1.0"
             },
@@ -1612,7 +1624,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.6-dev"
+                    "dev-master": "1.8-dev"
                 }
             },
             "autoload": {
@@ -1640,7 +1652,7 @@
                 "message",
                 "psr-7"
             ],
-            "time": "2018-11-01T09:32:41+00:00"
+            "time": "2019-08-05T06:55:08+00:00"
         },
         {
             "name": "php-http/message-factory",
@@ -1889,24 +1901,24 @@
         },
         {
             "name": "ralouphie/getallheaders",
-            "version": "2.0.5",
+            "version": "3.0.3",
             "source": {
                 "type": "git",
                 "url": "https://github.com/ralouphie/getallheaders.git",
-                "reference": "5601c8a83fbba7ef674a7369456d12f1e0d0eafa"
+                "reference": "120b605dfeb996808c31b6477290a714d356e822"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/ralouphie/getallheaders/zipball/5601c8a83fbba7ef674a7369456d12f1e0d0eafa",
-                "reference": "5601c8a83fbba7ef674a7369456d12f1e0d0eafa",
+                "url": "https://api.github.com/repos/ralouphie/getallheaders/zipball/120b605dfeb996808c31b6477290a714d356e822",
+                "reference": "120b605dfeb996808c31b6477290a714d356e822",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.3"
+                "php": ">=5.6"
             },
             "require-dev": {
-                "phpunit/phpunit": "~3.7.0",
-                "satooshi/php-coveralls": ">=1.0"
+                "php-coveralls/php-coveralls": "^2.1",
+                "phpunit/phpunit": "^5 || ^6.5"
             },
             "type": "library",
             "autoload": {
@@ -1925,34 +1937,35 @@
                 }
             ],
             "description": "A polyfill for getallheaders.",
-            "time": "2016-02-11T07:05:27+00:00"
+            "time": "2019-03-08T08:55:37+00:00"
         },
         {
             "name": "symfony/http-foundation",
-            "version": "v4.2.4",
+            "version": "v4.4.4",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/http-foundation.git",
-                "reference": "850a667d6254ccf6c61d853407b16f21c4579c77"
+                "reference": "491a20dfa87e0b3990170593bc2de0bb34d828a5"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/http-foundation/zipball/850a667d6254ccf6c61d853407b16f21c4579c77",
-                "reference": "850a667d6254ccf6c61d853407b16f21c4579c77",
+                "url": "https://api.github.com/repos/symfony/http-foundation/zipball/491a20dfa87e0b3990170593bc2de0bb34d828a5",
+                "reference": "491a20dfa87e0b3990170593bc2de0bb34d828a5",
                 "shasum": ""
             },
             "require": {
                 "php": "^7.1.3",
+                "symfony/mime": "^4.3|^5.0",
                 "symfony/polyfill-mbstring": "~1.1"
             },
             "require-dev": {
                 "predis/predis": "~1.0",
-                "symfony/expression-language": "~3.4|~4.0"
+                "symfony/expression-language": "^3.4|^4.0|^5.0"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "4.2-dev"
+                    "dev-master": "4.4-dev"
                 }
             },
             "autoload": {
@@ -1979,20 +1992,144 @@
             ],
             "description": "Symfony HttpFoundation Component",
             "homepage": "https://symfony.com",
-            "time": "2019-02-26T08:03:39+00:00"
+            "time": "2020-01-31T09:11:17+00:00"
+        },
+        {
+            "name": "symfony/mime",
+            "version": "v4.4.4",
+            "source": {
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@@ -3142,17 +3300,13 @@
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                     "email": "github@wallbash.com"
                 },
-                {
-                    "name": "Bernhard Schussek",
-                    "email": "bschussek@2bepublished.at"
-                },
-                {
-                    "name": "Sebastian Bergmann",
-                    "email": "sebastian@phpunit.de"
-                },
                 {
                     "name": "Adam Harvey",
                     "email": "aharvey@php.net"
+                },
+                {
+                    "name": "Bernhard Schussek",
+                    "email": "bschussek@gmail.com"
                 }
             ],
             "description": "Provides the functionality to export PHP variables for visualization",
@@ -3161,27 +3315,27 @@
                 "export",
                 "exporter"
             ],
-            "time": "2017-04-03T13:19:02+00:00"
+            "time": "2019-09-14T09:02:43+00:00"
         },
         {
             "name": "sebastian/global-state",
-            "version": "1.1.1",
+            "version": "2.0.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/global-state.git",
-                "reference": "bc37d50fea7d017d3d340f230811c9f1d7280af4"
+                "reference": "e8ba02eed7bbbb9e59e43dedd3dddeff4a56b0c4"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/global-state/zipball/bc37d50fea7d017d3d340f230811c9f1d7280af4",
-                "reference": "bc37d50fea7d017d3d340f230811c9f1d7280af4",
+                "url": "https://api.github.com/repos/sebastianbergmann/global-state/zipball/e8ba02eed7bbbb9e59e43dedd3dddeff4a56b0c4",
+                "reference": "e8ba02eed7bbbb9e59e43dedd3dddeff4a56b0c4",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.3.3"
+                "php": "^7.0"
             },
             "require-dev": {
-                "phpunit/phpunit": "~4.2"
+                "phpunit/phpunit": "^6.0"
             },
             "suggest": {
                 "ext-uopz": "*"
@@ -3189,7 +3343,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.0-dev"
+                    "dev-master": "2.0-dev"
                 }
             },
             "autoload": {
@@ -3212,25 +3366,25 @@
             "keywords": [
                 "global state"
             ],
-            "time": "2015-10-12T03:26:01+00:00"
+            "time": "2017-04-27T15:39:26+00:00"
         },
         {
             "name": "sebastian/object-enumerator",
-            "version": "3.0.2",
+            "version": "3.0.3",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/object-enumerator.git",
-                "reference": "31dd3379d16446c5d86dec32ab1ad1f378581ad8"
+                "reference": "7cfd9e65d11ffb5af41198476395774d4c8a84c5"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/object-enumerator/zipball/31dd3379d16446c5d86dec32ab1ad1f378581ad8",
-                "reference": "31dd3379d16446c5d86dec32ab1ad1f378581ad8",
+                "url": "https://api.github.com/repos/sebastianbergmann/object-enumerator/zipball/7cfd9e65d11ffb5af41198476395774d4c8a84c5",
+                "reference": "7cfd9e65d11ffb5af41198476395774d4c8a84c5",
                 "shasum": ""
             },
             "require": {
                 "php": "^7.0",
-                "sebastian/object-reflector": "^1.0",
+                "sebastian/object-reflector": "^1.1.1",
                 "sebastian/recursion-context": "^3.0"
             },
             "require-dev": {
@@ -3259,7 +3413,7 @@
             ],
             "description": "Traverses array structures and object graphs to enumerate all referenced objects",
             "homepage": "https://github.com/sebastianbergmann/object-enumerator/",
-            "time": "2017-03-12T15:17:29+00:00"
+            "time": "2017-08-03T12:35:26+00:00"
         },
         {
             "name": "sebastian/object-reflector",
@@ -3361,25 +3515,25 @@
         },
         {
             "name": "sebastian/resource-operations",
-            "version": "1.0.0",
+            "version": "2.0.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/resource-operations.git",
-                "reference": "ce990bb21759f94aeafd30209e8cfcdfa8bc3f52"
+                "reference": "4d7a795d35b889bf80a0cc04e08d77cedfa917a9"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/resource-operations/zipball/ce990bb21759f94aeafd30209e8cfcdfa8bc3f52",
-                "reference": "ce990bb21759f94aeafd30209e8cfcdfa8bc3f52",
+                "url": "https://api.github.com/repos/sebastianbergmann/resource-operations/zipball/4d7a795d35b889bf80a0cc04e08d77cedfa917a9",
+                "reference": "4d7a795d35b889bf80a0cc04e08d77cedfa917a9",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.6.0"
+                "php": "^7.1"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.0.x-dev"
+                    "dev-master": "2.0-dev"
                 }
             },
             "autoload": {
@@ -3399,7 +3553,7 @@
             ],
             "description": "Provides a list of PHP built-in functions that operate on resources",
             "homepage": "https://www.github.com/sebastianbergmann/resource-operations",
-            "time": "2015-07-28T20:34:47+00:00"
+            "time": "2018-10-04T04:07:39+00:00"
         },
         {
             "name": "sebastian/version",
@@ -3444,18 +3598,76 @@
             "homepage": "https://github.com/sebastianbergmann/version",
             "time": "2016-10-03T07:35:21+00:00"
         },
+        {
+            "name": "symfony/polyfill-ctype",
+            "version": "v1.14.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/polyfill-ctype.git",
+                "reference": "fbdeaec0df06cf3d51c93de80c7eb76e271f5a38"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/polyfill-ctype/zipball/fbdeaec0df06cf3d51c93de80c7eb76e271f5a38",
+                "reference": "fbdeaec0df06cf3d51c93de80c7eb76e271f5a38",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.3.3"
+            },
+            "suggest": {
+                "ext-ctype": "For best performance"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.14-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Symfony\\Polyfill\\Ctype\\": ""
+                },
+                "files": [
+                    "bootstrap.php"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Gert de Pagter",
+                    "email": "BackEndTea@gmail.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Symfony polyfill for ctype functions",
+            "homepage": "https://symfony.com",
+            "keywords": [
+                "compatibility",
+                "ctype",
+                "polyfill",
+                "portable"
+            ],
+            "time": "2020-01-13T11:15:53+00:00"
+        },
         {
             "name": "theseer/tokenizer",
-            "version": "1.1.0",
+            "version": "1.1.3",
             "source": {
                 "type": "git",
                 "url": "https://github.com/theseer/tokenizer.git",
-                "reference": "cb2f008f3f05af2893a87208fe6a6c4985483f8b"
+                "reference": "11336f6f84e16a720dae9d8e6ed5019efa85a0f9"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/theseer/tokenizer/zipball/cb2f008f3f05af2893a87208fe6a6c4985483f8b",
-                "reference": "cb2f008f3f05af2893a87208fe6a6c4985483f8b",
+                "url": "https://api.github.com/repos/theseer/tokenizer/zipball/11336f6f84e16a720dae9d8e6ed5019efa85a0f9",
+                "reference": "11336f6f84e16a720dae9d8e6ed5019efa85a0f9",
                 "shasum": ""
             },
             "require": {
@@ -3482,35 +3694,33 @@
                 }
             ],
             "description": "A small library for converting tokenized PHP source code into XML and potentially other formats",
-            "time": "2017-04-07T12:08:54+00:00"
+            "time": "2019-06-13T22:48:21+00:00"
         },
         {
             "name": "webmozart/assert",
-            "version": "1.2.0",
+            "version": "1.7.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/webmozart/assert.git",
-                "reference": "2db61e59ff05fe5126d152bd0655c9ea113e550f"
+                "reference": "aed98a490f9a8f78468232db345ab9cf606cf598"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/webmozart/assert/zipball/2db61e59ff05fe5126d152bd0655c9ea113e550f",
-                "reference": "2db61e59ff05fe5126d152bd0655c9ea113e550f",
+                "url": "https://api.github.com/repos/webmozart/assert/zipball/aed98a490f9a8f78468232db345ab9cf606cf598",
+                "reference": "aed98a490f9a8f78468232db345ab9cf606cf598",
                 "shasum": ""
             },
             "require": {
-                "php": "^5.3.3 || ^7.0"
+                "php": "^5.3.3 || ^7.0",
+                "symfony/polyfill-ctype": "^1.8"
+            },
+            "conflict": {
+                "vimeo/psalm": "<3.6.0"
             },
             "require-dev": {
-                "phpunit/phpunit": "^4.6",
-                "sebastian/version": "^1.0.1"
+                "phpunit/phpunit": "^4.8.36 || ^7.5.13"
             },
             "type": "library",
-            "extra": {
-                "branch-alias": {
-                    "dev-master": "1.3-dev"
-                }
-            },
             "autoload": {
                 "psr-4": {
                     "Webmozart\\Assert\\": "src/"
@@ -3532,7 +3742,7 @@
                 "check",
                 "validate"
             ],
-            "time": "2016-11-23T20:04:58+00:00"
+            "time": "2020-02-14T12:15:55+00:00"
         }
     ],
     "aliases": [],
@@ -3543,5 +3753,8 @@
     "platform": {
         "php": "^7.1"
     },
-    "platform-dev": []
+    "platform-dev": [],
+    "platform-overrides": {
+        "php": "7.1.8"
+    }
 }
diff --git a/tests/test_data/structure.sql b/tests/test_data/structure.sql
index d773311..ce91847 100644
--- a/tests/test_data/structure.sql
+++ b/tests/test_data/structure.sql
@@ -168,35 +168,35 @@ VALUES
 # Dump of table purchases
 # ------------------------------------------------------------
 
-INSERT INTO `purchases` (`id`, `creator_id`, `number`, `currency`, `monetary`, `is_frozen`, `is_deleted`)
+INSERT INTO `purchases` (`id`, `creator_id`, `number`, `currency`, `monetary`, `is_frozen`, `is_deleted`, `promo_code_text`)
 VALUES
-  (1,1,'CNV7IC','EUR','O:31:\"OpenBuildings\\Monetary\\Monetary\":3:{s:20:\"\0*\0_default_currency\";C:33:\"OpenBuildings\\Monetary\\Source_ECB\":728:{a:31:{s:3:\"USD\";s:6:\"1.1170\";s:3:\"JPY\";s:6:\"134.13\";s:3:\"BGN\";s:6:\"1.9558\";s:3:\"CZK\";s:6:\"27.220\";s:3:\"DKK\";s:6:\"7.4597\";s:3:\"GBP\";s:7:\"0.73520\";s:3:\"HUF\";s:6:\"315.43\";s:3:\"PLN\";s:6:\"4.2343\";s:3:\"RON\";s:6:\"4.4173\";s:3:\"SEK\";s:6:\"9.4527\";s:3:\"CHF\";s:6:\"1.0941\";s:3:\"NOK\";s:6:\"9.5820\";s:3:\"HRK\";s:6:\"7.6360\";s:3:\"RUB\";s:7:\"73.3737\";s:3:\"TRY\";s:6:\"3.4137\";s:3:\"AUD\";s:6:\"1.5967\";s:3:\"BRL\";s:6:\"4.4787\";s:3:\"CAD\";s:6:\"1.4921\";s:3:\"CNY\";s:6:\"7.1099\";s:3:\"HKD\";s:6:\"8.6569\";s:3:\"IDR\";s:8:\"16419.85\";s:3:\"ILS\";s:6:\"4.4024\";s:3:\"INR\";s:7:\"73.8391\";s:3:\"KRW\";s:7:\"1334.11\";s:3:\"MXN\";s:7:\"19.0756\";s:3:\"MYR\";s:6:\"4.9410\";s:3:\"NZD\";s:6:\"1.7585\";s:3:\"PHP\";s:6:\"52.271\";s:3:\"SGD\";s:6:\"1.5960\";s:3:\"THB\";s:6:\"40.603\";s:3:\"ZAR\";s:7:\"15.6728\";}}s:10:\"\0*\0_source\";N;s:13:\"\0*\0_precision\";i:2;}',1,0),
-  (2,1,'AAV7IC','GBP','',0,0);
+  (1,1,'CNV7IC','EUR','O:31:\"OpenBuildings\\Monetary\\Monetary\":3:{s:20:\"\0*\0_default_currency\";C:33:\"OpenBuildings\\Monetary\\Source_ECB\":728:{a:31:{s:3:\"USD\";s:6:\"1.1170\";s:3:\"JPY\";s:6:\"134.13\";s:3:\"BGN\";s:6:\"1.9558\";s:3:\"CZK\";s:6:\"27.220\";s:3:\"DKK\";s:6:\"7.4597\";s:3:\"GBP\";s:7:\"0.73520\";s:3:\"HUF\";s:6:\"315.43\";s:3:\"PLN\";s:6:\"4.2343\";s:3:\"RON\";s:6:\"4.4173\";s:3:\"SEK\";s:6:\"9.4527\";s:3:\"CHF\";s:6:\"1.0941\";s:3:\"NOK\";s:6:\"9.5820\";s:3:\"HRK\";s:6:\"7.6360\";s:3:\"RUB\";s:7:\"73.3737\";s:3:\"TRY\";s:6:\"3.4137\";s:3:\"AUD\";s:6:\"1.5967\";s:3:\"BRL\";s:6:\"4.4787\";s:3:\"CAD\";s:6:\"1.4921\";s:3:\"CNY\";s:6:\"7.1099\";s:3:\"HKD\";s:6:\"8.6569\";s:3:\"IDR\";s:8:\"16419.85\";s:3:\"ILS\";s:6:\"4.4024\";s:3:\"INR\";s:7:\"73.8391\";s:3:\"KRW\";s:7:\"1334.11\";s:3:\"MXN\";s:7:\"19.0756\";s:3:\"MYR\";s:6:\"4.9410\";s:3:\"NZD\";s:6:\"1.7585\";s:3:\"PHP\";s:6:\"52.271\";s:3:\"SGD\";s:6:\"1.5960\";s:3:\"THB\";s:6:\"40.603\";s:3:\"ZAR\";s:7:\"15.6728\";}}s:10:\"\0*\0_source\";N;s:13:\"\0*\0_precision\";i:2;}',1,0,''),
+  (2,1,'AAV7IC','GBP','',0,0,'');
 
 # Dump of table brand_purchases
 # ------------------------------------------------------------
 
-INSERT INTO `brand_purchases` (`id`, `number`, `brand_id`, `purchase_id`, `is_deleted`)
+INSERT INTO `brand_purchases` (`id`, `number`, `brand_id`, `purchase_id`, `is_deleted`, `is_frozen`)
 VALUES
-  (1,'3S2GJG',1,1,0),
-  (2,'AA2GJG',1,2,0);
+  (1,'3S2GJG',1,1,0,1),
+  (2,'AA2GJG',1,2,0,1);
 
 # Dump of table purchase_items
 # ------------------------------------------------------------
 
-INSERT INTO `purchase_items` (`id`, `brand_purchase_id`, `reference_id`, `reference_model`, `price`, `quantity`, `model`, `is_payable`, `is_discount`, `is_deleted`)
+INSERT INTO `purchase_items` (`id`, `brand_purchase_id`, `reference_id`, `reference_model`, `price`, `quantity`, `model`, `is_payable`, `is_discount`, `is_deleted`, `is_frozen`)
 VALUES
-  (1,1,1,'product',200.00,1,'purchase_item_product',1,0,0),
-  (2,1,1,'variation',200.00,1,'purchase_item_product',1,0,0),
-  (3,2,1,'product',NULL,1,'purchase_item_product',1,0,0);
+  (1,1,1,'product',200.00,1,'purchase_item_product',1,0,0,1),
+  (2,1,1,'variation',200.00,1,'purchase_item_product',1,0,0,1),
+  (3,2,1,'product',NULL,1,'purchase_item_product',1,0,0,1);
 
 # Dump of table brands
 # ------------------------------------------------------------
 
-INSERT INTO `brands` (`id`, `name`)
+INSERT INTO `brands` (`id`, `name`, `currency`)
 VALUES
-  (1,'Example Brand'),
-  (2,'Empty Brand');
+  (1,'Example Brand','EUR'),
+  (2,'Empty Brand','EUR');
 
 # Dump of table users
 # ------------------------------------------------------------
diff --git a/tests/tests/Jam/Behavior/Promotable/Brand/PurchaseTest.php b/tests/tests/Jam/Behavior/Promotable/Brand/PurchaseTest.php
index e081f90..c57ebdb 100644
--- a/tests/tests/Jam/Behavior/Promotable/Brand/PurchaseTest.php
+++ b/tests/tests/Jam/Behavior/Promotable/Brand/PurchaseTest.php
@@ -20,7 +20,7 @@ public function test_available_promotions()
 
 		$this->assertEquals(array(1, 2), $promotions->ids());
 
-		Jam::find('promotion', 1)->update_fields(array('expires_at' => strtotime('-2days')));
+		Jam::find('promotion', 1)->update_fields(array('expires_at' => date('Y-m-d H:i:s',strtotime('-2days'))));
 
 		$promotions = $behavior->available_promotions();