allow plain boolean into when and skip

src/Illuminate/Console/Scheduling/Event.php

@@ -532,25 +532,29 @@ public function withoutOverlapping()
     /**
      * Register a callback to further filter the schedule.
      *
-     * @param  \Closure  $callback
+     * @param  \Closure|boolean  $callback
      * @return $this
      */
-    public function when(Closure $callback)
+    public function when($callback)
     {
-        $this->filters[] = $callback;
+        $this->filters[] = is_callable($callback) ? $callback : function () use ($callback) {
+            return $callback;
+        };
 
         return $this;
     }
 
     /**
      * Register a callback to further filter the schedule.
      *
-     * @param  \Closure  $callback
+     * @param  \Closure|boolean  $callback
      * @return $this
      */
-    public function skip(Closure $callback)
+    public function skip($callback)
     {
-        $this->rejects[] = $callback;
+        $this->rejects[] = is_callable($callback) ? $callback : function () use ($callback) {
+            return $callback;
+        };
 
         return $this;
     }

tests/Console/ConsoleScheduledEventTest.php

@@ -55,6 +55,10 @@ public function testBasicCronCompilation()
             return false;
         })->filtersPass($app));
 
+        $event = new Event(m::mock('Illuminate\Console\Scheduling\Mutex'), 'php foo');
+        $this->assertEquals('* * * * * *', $event->getExpression());
+        $this->assertFalse($event->when(false)->filtersPass($app));
+
         // chained rules should be commutative
         $eventA = new Event(m::mock('Illuminate\Console\Scheduling\Mutex'), 'php foo');
         $eventB = new Event(m::mock('Illuminate\Console\Scheduling\Mutex'), 'php foo');