Support expected target during toString

Author: jclaveau

src/DeferredCallChain.php

@@ -89,7 +89,14 @@ public function jsonSerialize()
      */
     public function __toString()
     {
-        $string = '(new ' . get_called_class() . ')';
+        $string = '(new ' . get_called_class();
+        if (is_string($this->expectedTarget)) {
+            $string .= '(' . var_export($this->expectedTarget, true) . ')';
+        }
+        elseif (is_object($this->expectedTarget)) {
+            $string .= '( ' . get_class($this->expectedTarget) . '#' . spl_object_id($this->expectedTarget) . ' )';
+        }
+        $string .= ')';
 
         foreach ($this->stack as $i => $call) {
             if (isset($call['method'])) {

tests/unit/DeferredCallChainTest.php

@@ -18,6 +18,38 @@ public function test_toString()
         );
     }
 
+    /**
+     */
+    public function test_toString_with_string_target()
+    {
+        $nameRobert = DeferredCallChain::new_("Human")
+            ->setName('Muda')
+            ->setFirstName('Robert')
+            ;
+
+        $this->assertEquals(
+            "(new JClaveau\Async\DeferredCallChain('Human'))->setName('Muda')->setFirstName('Robert')",
+            (string) $nameRobert
+        );
+    }
+
+    /**
+     */
+    public function test_toString_with_instance_target()
+    {
+        $human = new Human;
+        
+        $nameRobert = DeferredCallChain::new_($human)
+            ->setName('Muda')
+            ->setFirstName('Robert')
+            ;
+
+        $this->assertEquals(
+            "(new JClaveau\Async\DeferredCallChain( JClaveau\Async\Human#" . spl_object_id($human) . " ))->setName('Muda')->setFirstName('Robert')",
+            (string) $nameRobert
+        );
+    }
+
     /**
      */
     public function test_invoke()