Actualización

vendor/php-xapi/symfony-serializer/spec/Normalizer/TimestampNormalizerSpec.php

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+<?php
+
+namespace spec\Xabbuh\XApi\Serializer\Symfony\Normalizer;
+
+use PhpSpec\ObjectBehavior;
+
+class TimestampNormalizerSpec extends ObjectBehavior
+{
+    function it_is_a_normalizer()
+    {
+        $this->shouldHaveType('Symfony\Component\Serializer\Normalizer\NormalizerInterface');
+    }
+
+    function it_can_normalize_datetime_objects()
+    {
+        $this->supportsNormalization(new \DateTime())->shouldBe(true);
+    }
+
+    function it_cannot_normalize_datetime_like_string()
+    {
+        $this->supportsNormalization('2004-02-12T15:19:21+00:00')->shouldBe(false);
+    }
+
+    function it_normalizes_datetime_objects_as_iso_8601_formatted_strings()
+    {
+        $date = new \DateTime();
+        $date->setTimezone(new \DateTimeZone('UTC'));
+        $date->setDate(2004, 2, 12);
+        $date->setTime(15, 19, 21);
+
+        $this->normalize($date)->shouldReturn('2004-02-12T15:19:21+00:00');
+    }
+
+    function it_throws_an_exception_when_data_other_than_datetime_objects_are_passed()
+    {
+        $this->shouldThrow('Symfony\Component\Serializer\Exception\InvalidArgumentException')->during('normalize', array('2004-02-12T15:19:21+00:00'));
+    }
+
+    function it_is_a_denormalizer()
+    {
+        $this->shouldHaveType('Symfony\Component\Serializer\Normalizer\DenormalizerInterface');
+    }
+
+    function it_can_denormalize_to_datetime_objects()
+    {
+        $this->supportsDenormalization('2004-02-12T15:19:21+00:00', 'DateTime')->shouldBe(true);
+    }
+
+    function it_denormalizes_iso_8601_formatted_strings_to_datetime_objects()
+    {
+        $date = $this->denormalize('2004-02-12T15:19:21+00:00', 'DateTime');
+
+        $date->getTimezone()->shouldBeLike(new \DateTimeZone('UTC'));
+        $date->format('Y-m-d H:i:s')->shouldReturn('2004-02-12 15:19:21');
+    }
+}