Merge pull request #18 from garemoko/master

Work around for DateTime::ISO8601 PHP bug

Author: bscSCORM

src/Document.php

@@ -48,7 +48,8 @@ public function getEtag() { return $this->etag; }
     public function setTimestamp($value) {
         if (isset($value)) {
             if ($value instanceof \DateTime) {
-                $value = $value->format(\DateTime::ISO8601);
+                // Use format('c') instead of format(\DateTime::ISO8601) due to bug in format(\DateTime::ISO8601) that generates an invalid timestamp.
+                $value = $value->format('c');
             }
             elseif (is_string($value)) {
                 $value = $value;

src/Statement.php

@@ -100,7 +100,8 @@ public function hasId() { return isset($this->id); }
     public function setStored($value) {
         if (isset($value)) {
             if ($value instanceof \DateTime) {
-                $value = $value->format(\DateTime::ISO8601);
+                // Use format('c') instead of format(\DateTime::ISO8601) due to bug in format(\DateTime::ISO8601) that generates an invalid timestamp.
+                $value = $value->format('c');
             }
             elseif (is_string($value)) {
                 $value = $value;

src/StatementBase.php

@@ -158,7 +158,8 @@ public function getContext() { return $this->context; }
     public function setTimestamp($value) {
         if (isset($value)) {
             if ($value instanceof \DateTime) {
-                $value = $value->format(\DateTime::ISO8601);
+                // Use format('c') instead of format(\DateTime::ISO8601) due to bug in format(\DateTime::ISO8601) that generates an invalid timestamp.
+                $value = $value->format('c');
             }
             elseif (is_string($value)) {
                 $value = $value;

tests/ISO8601Test.php

@@ -0,0 +1,50 @@
+<?php
+/*
+    Copyright 2014 Rustici Software
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+use TinCan\Statement;
+use TinCan\State;
+
+class ISO8601Test extends PHPUnit_Framework_TestCase {
+    public function testProperties() {
+        $str_datetime = '2014-12-15T19:16:05+00:00';
+        $str_datetime_tz = '2014-12-15T13:16:05-06:00';
+
+        $datetime = new \DateTime();
+        $datetime->setDate(2014, 12, 15);
+        $datetime->setTime(19, 16, 05);
+
+        $statement = new Statement();
+        $statement->setStored($datetime);
+        $statement->setTimestamp($datetime);
+
+        $document = new State();
+        $document->setTimestamp($datetime);
+
+        $this->assertEquals($statement->getStored(), $str_datetime, 'stored matches');
+        $this->assertEquals($statement->getTimestamp(), $str_datetime, 'timestamp matches');
+        $this->assertEquals($document->getTimestamp(), $str_datetime, 'document timestamp matches');
+
+        $datetime->setTimezone(new DateTimeZone('America/Chicago'));
+        $statement->setStored($datetime);
+        $statement->setTimestamp($datetime);
+        $document->setTimestamp($datetime);
+
+        $this->assertEquals($statement->getStored(), $str_datetime_tz, 'stored matches');
+        $this->assertEquals($statement->getTimestamp(), $str_datetime_tz, 'timestamp matches');
+        $this->assertEquals($document->getTimestamp(), $str_datetime_tz, 'document timestamp matches');
+    }
+}