[8.x] Ensure both Carbon and CarbonImmutable get the same test now (#36117)

* [8.x] Ensure both Carbon and CarbonImmutable get the same test now.

In project where we might use mixes of Carbon and CarbonImmutable you
need to remember to always setTestNow() for both scenario, this PR
solved it by ensuring both instance has the same date and time during
tests.

Signed-off-by: Mior Muhammad Zaki <crynobone@gmail.com>

* Refactor test

Signed-off-by: Mior Muhammad Zaki <crynobone@gmail.com>

Author: crynobone

src/Illuminate/Foundation/Testing/Wormhole.php

@@ -2,7 +2,7 @@
 
 namespace Illuminate\Foundation\Testing;
 
-use Illuminate\Support\Facades\Date;
+use Illuminate\Support\Carbon;
 
 class Wormhole
 {
@@ -32,7 +32,7 @@ public function __construct($value)
      */
     public function milliseconds($callback = null)
     {
-        Date::setTestNow(Date::now()->addMilliseconds($this->value));
+        Carbon::setTestNow(Carbon::now()->addMilliseconds($this->value));
 
         return $this->handleCallback($callback);
     }
@@ -45,7 +45,7 @@ public function milliseconds($callback = null)
      */
     public function seconds($callback = null)
     {
-        Date::setTestNow(Date::now()->addSeconds($this->value));
+        Carbon::setTestNow(Carbon::now()->addSeconds($this->value));
 
         return $this->handleCallback($callback);
     }
@@ -58,7 +58,7 @@ public function seconds($callback = null)
      */
     public function minutes($callback = null)
     {
-        Date::setTestNow(Date::now()->addMinutes($this->value));
+        Carbon::setTestNow(Carbon::now()->addMinutes($this->value));
 
         return $this->handleCallback($callback);
     }
@@ -71,7 +71,7 @@ public function minutes($callback = null)
      */
     public function hours($callback = null)
     {
-        Date::setTestNow(Date::now()->addHours($this->value));
+        Carbon::setTestNow(Carbon::now()->addHours($this->value));
 
         return $this->handleCallback($callback);
     }
@@ -84,7 +84,7 @@ public function hours($callback = null)
      */
     public function days($callback = null)
     {
-        Date::setTestNow(Date::now()->addDays($this->value));
+        Carbon::setTestNow(Carbon::now()->addDays($this->value));
 
         return $this->handleCallback($callback);
     }
@@ -97,7 +97,7 @@ public function days($callback = null)
      */
     public function weeks($callback = null)
     {
-        Date::setTestNow(Date::now()->addWeeks($this->value));
+        Carbon::setTestNow(Carbon::now()->addWeeks($this->value));
 
         return $this->handleCallback($callback);
     }
@@ -110,7 +110,7 @@ public function weeks($callback = null)
      */
     public function years($callback = null)
     {
-        Date::setTestNow(Date::now()->addYears($this->value));
+        Carbon::setTestNow(Carbon::now()->addYears($this->value));
 
         return $this->handleCallback($callback);
     }
@@ -122,9 +122,9 @@ public function years($callback = null)
      */
     public static function back()
     {
-        Date::setTestNow();
+        Carbon::setTestNow();
 
-        return Date::now();
+        return Carbon::now();
     }
 
     /**
@@ -137,7 +137,7 @@ protected function handleCallback($callback)
     {
         if ($callback) {
             return tap($callback(), function () {
-                Date::setTestNow();
+                Carbon::setTestNow();
             });
         }
     }

src/Illuminate/Support/Carbon.php

@@ -3,8 +3,16 @@
 namespace Illuminate\Support;
 
 use Carbon\Carbon as BaseCarbon;
+use Carbon\CarbonImmutable as BaseCarbonImmutable;
 
 class Carbon extends BaseCarbon
 {
-    //
+    /**
+     * {@inheritdoc}
+     */
+    public static function setTestNow($testNow = null)
+    {
+        BaseCarbon::setTestNow($testNow);
+        BaseCarbonImmutable::setTestNow($testNow);
+    }
 }

tests/Support/SupportCarbonTest.php

@@ -4,6 +4,7 @@
 
 use BadMethodCallException;
 use Carbon\Carbon as BaseCarbon;
+use Carbon\CarbonImmutable as BaseCarbonImmutable;
 use DateTime;
 use DateTimeInterface;
 use Illuminate\Support\Carbon;
@@ -108,4 +109,13 @@ public function testDeserializationOccursCorrectly()
 
         $this->assertInstanceOf(Carbon::class, $deserialized);
     }
+
+    public function testSetTestNowWillPersistBetweenImmutableAndMutableInstance()
+    {
+        Carbon::setTestNow(new Carbon('2017-06-27 13:14:15.000000'));
+
+        $this->assertSame('2017-06-27 13:14:15', Carbon::now()->toDateTimeString());
+        $this->assertSame('2017-06-27 13:14:15', BaseCarbon::now()->toDateTimeString());
+        $this->assertSame('2017-06-27 13:14:15', BaseCarbonImmutable::now()->toDateTimeString());
+    }
 }