make validation time params testable

Date validation rule parameters containing
relative time like 'today' or 'next monday'
do not respective Carbon::setTestNow(). To
get a date-adjusted value when these keywords
are present in a date parameter, instantiate
Carbon over DateTime or strtotime().

src/Illuminate/Validation/Concerns/ValidatesAttributes.php

@@ -11,6 +11,7 @@
 use Illuminate\Support\Arr;
 use Illuminate\Support\Str;
 use InvalidArgumentException;
+use Illuminate\Support\Carbon;
 use Illuminate\Validation\Rules\Exists;
 use Illuminate\Validation\Rules\Unique;
 use Illuminate\Validation\ValidationData;
@@ -180,7 +181,19 @@ protected function getDateFormat($attribute)
      */
     protected function getDateTimestamp($value)
     {
-        return $value instanceof DateTimeInterface ? $value->getTimestamp() : strtotime($value);
+        if ($value instanceof DateTimeInterface) {
+            return $value->getTimestamp();
+        }
+
+        if ($this->isTestingRelativeDateTime($value)) {
+            $date = $this->getDateTime($value);
+
+            if (! is_null($date)) {
+                return $date->getTimestamp();
+            }
+        }
+
+        return strtotime($value);
     }
 
     /**
@@ -214,13 +227,41 @@ protected function getDateTimeWithOptionalFormat($format, $value)
             return $date;
         }
 
+        return $this->getDateTime($value);
+    }
+
+    /**
+     * Get a DateTime instance from a string with no format.
+     *
+     * @param  string $value
+     * @return \DateTime|null
+     */
+    protected function getDateTime($value)
+    {
         try {
+            if ($this->isTestingRelativeDateTime($value)) {
+                return new Carbon($value);
+            }
+
             return new DateTime($value);
         } catch (Exception $e) {
             //
         }
     }
 
+    /**
+     * Check if the given value should be adjusted to Carbon::getTestNow().
+     *
+     * @param  mixed $value
+     * @return bool
+     */
+    protected function isTestingRelativeDateTime($value)
+    {
+        return Carbon::hasTestNow() && is_string($value) && (
+            $value === 'now' || Carbon::hasRelativeKeywords($value)
+        );
+    }
+
     /**
      * Validate that an attribute contains only alphabetic characters.
      *

tests/Validation/ValidationValidatorTest.php

@@ -19,6 +19,7 @@ class ValidationValidatorTest extends TestCase
 {
     public function tearDown()
     {
+        Carbon::setTestNow();
         m::close();
     }
 
@@ -2479,6 +2480,52 @@ public function testDateEquals()
         $this->assertTrue($v->fails());
     }
 
+    public function testDateEqualsRespectsCarbonTestNowWhenParameterIsRelative()
+    {
+        date_default_timezone_set('UTC');
+        $trans = $this->getIlluminateArrayTranslator();
+        Carbon::setTestNow(new Carbon('2018-01-01'));
+
+        $v = new Validator($trans, ['x' => '2018-01-01 00:00:00'], ['x' => 'date_equals:now']);
+        $this->assertTrue($v->passes());
+
+        $v = new Validator($trans, ['x' => '2018-01-01'], ['x' => 'date_equals:today']);
+        $this->assertTrue($v->passes());
+
+        $v = new Validator($trans, ['x' => '2018-01-01'], ['x' => 'date_equals:yesterday']);
+        $this->assertTrue($v->fails());
+
+        $v = new Validator($trans, ['x' => '2018-01-01'], ['x' => 'date_equals:tomorrow']);
+        $this->assertTrue($v->fails());
+
+        $v = new Validator($trans, ['x' => '01/01/2018'], ['x' => 'date_format:d/m/Y|date_equals:today']);
+        $this->assertTrue($v->passes());
+
+        $v = new Validator($trans, ['x' => '01/01/2018'], ['x' => 'date_format:d/m/Y|date_equals:yesterday']);
+        $this->assertTrue($v->fails());
+
+        $v = new Validator($trans, ['x' => '01/01/2018'], ['x' => 'date_format:d/m/Y|date_equals:tomorrow']);
+        $this->assertTrue($v->fails());
+
+        $v = new Validator($trans, ['x' => new DateTime('2018-01-01')], ['x' => 'date_equals:today']);
+        $this->assertTrue($v->passes());
+
+        $v = new Validator($trans, ['x' => new DateTime('2018-01-01')], ['x' => 'date_equals:yesterday']);
+        $this->assertTrue($v->fails());
+
+        $v = new Validator($trans, ['x' => new DateTime('2018-01-01')], ['x' => 'date_equals:tomorrow']);
+        $this->assertTrue($v->fails());
+
+        $v = new Validator($trans, ['x' => new Carbon('2018-01-01')], ['x' => 'date_equals:today|after:yesterday|before:tomorrow']);
+        $this->assertTrue($v->passes());
+
+        $v = new Validator($trans, ['x' => new Carbon('2018-01-01')], ['x' => 'date_equals:yesterday']);
+        $this->assertTrue($v->fails());
+
+        $v = new Validator($trans, ['x' => new Carbon('2018-01-01')], ['x' => 'date_equals:tomorrow']);
+        $this->assertTrue($v->fails());
+    }
+
     public function testBeforeAndAfter()
     {
         date_default_timezone_set('UTC');