[5.7] Bug fix for app()->call() (#26852)

* Update BoundMethod.php

Bug fix for app()->call('class@method');

fixes:
#22687

* Update ContainerTest.php

Added tests for app()->call() with default values in the called method

* Update ContainerTest.php

fixes style-ci issues

* fixes the tests

Fixes the tests

* Fixes the bug caught by tests

* more tests to be more sure

* Fixes style-CI issue

* better tests + typo fix

* Passes the most recent test (defaultOnlyC)

* More tests covering more cases

* Adds more tests

Adds more tests

* Update ContainerTest.php

Fix Style-ci

Author: imanghafoori1

src/Illuminate/Container/BoundMethod.php

@@ -116,7 +116,7 @@ protected static function getMethodDependencies($container, $callback, array $pa
             static::addDependencyForCallParameter($container, $parameter, $parameters, $dependencies);
         }
 
-        return array_merge($dependencies, $parameters);
+        return $parameters + $dependencies;
     }
 
     /**
@@ -162,6 +162,8 @@ protected static function addDependencyForCallParameter($container, $parameter,
             $dependencies[] = $container->make($parameter->getClass()->name);
         } elseif ($parameter->isDefaultValueAvailable()) {
             $dependencies[] = $parameter->getDefaultValue();
+        } else {
+            $dependencies[] = null;
         }
     }
 

tests/Container/ContainerTest.php

@@ -516,6 +516,77 @@ public function testCallWithDependencies()
         $this->assertEquals('taylor', $result[1]);
     }
 
+    public function testWithDefaultParametersIndexedArraySyntax()
+    {
+        $container = new Container;
+        $result = $container->call(ContainerTestDefaultyParams::class.'@defaulty', ['foo', 'bar']);
+
+        $this->assertEquals(['foo', 'bar', 'default c'], $result);
+
+        $container = new Container;
+        $result = $container->call(ContainerTestDefaultyParams::class.'@defaulty', ['foo', 'bar', 'baz']);
+
+        $this->assertEquals(['foo', 'bar', 'baz'], $result);
+
+        $container = new Container;
+        $result = $container->call(ContainerTestDefaultyParams::class.'@defaulty');
+
+        $this->assertEquals(['default a', 'default b', 'default c'], $result);
+
+        $container = new Container;
+        $result = $container->call(ContainerTestDefaultyParams::class.'@defaultyBandC', ['foo', 'bar']);
+
+        $this->assertEquals(['foo', 'bar', 'default c'], $result);
+
+        $container = new Container;
+        $result = $container->call(ContainerTestDefaultyParams::class.'@defaultyBandC', ['foo']);
+
+        $this->assertEquals(['foo', 'default b', 'default c'], $result);
+
+        $container = new Container;
+        $result = $container->call(ContainerTestDefaultyParams::class.'@defaultyOnlyC', ['foo', 'bar']);
+
+        $this->assertEquals(['foo', 'bar', 'default c'], $result);
+
+        $container = new Container;
+        $result = $container->call(ContainerTestDefaultyParams::class.'@noDefault', ['foo', 'bar', 'baz']);
+
+        $this->assertEquals(['foo', 'bar', 'baz'], $result);
+    }
+
+    public function testWithDefaultParametersAssociativeSyntax()
+    {
+        $container = new Container;
+        $result = $container->call(ContainerTestDefaultyParams::class.'@defaulty', ['a' => 'foo', 'b' => 'bar']);
+
+        $this->assertEquals(['foo', 'bar', 'default c'], $result);
+
+        $container = new Container;
+        $result = $container->call(ContainerTestDefaultyParams::class.'@defaulty', ['a' => 'foo', 'b' => 'bar', 'c' => 'baz']);
+
+        $this->assertEquals(['foo', 'bar', 'baz'], $result);
+
+        $container = new Container;
+        $result = $container->call(ContainerTestDefaultyParams::class.'@defaultyBandC', ['a' => 'foo', 'b' => 'bar']);
+
+        $this->assertEquals(['foo', 'bar', 'default c'], $result);
+
+        $container = new Container;
+        $result = $container->call(ContainerTestDefaultyParams::class.'@defaultyBandC', ['a' => 'foo']);
+
+        $this->assertEquals(['foo', 'default b', 'default c'], $result);
+
+        $container = new Container;
+        $result = $container->call(ContainerTestDefaultyParams::class.'@defaultyOnlyC', ['a' => 'foo', 'b' => 'bar']);
+
+        $this->assertEquals(['foo', 'bar', 'default c'], $result);
+
+        $container = new Container;
+        $result = $container->call(ContainerTestDefaultyParams::class.'@noDefault', ['a' => 'foo', 'b' => 'bar', 'c' => 'baz']);
+
+        $this->assertEquals(['foo', 'bar', 'baz'], $result);
+    }
+
     /**
      * @expectedException \ReflectionException
      * @expectedExceptionMessage Function ContainerTestCallStub() does not exist
@@ -1271,3 +1342,26 @@ public function __construct()
         static::$instantiations++;
     }
 }
+
+class ContainerTestDefaultyParams
+{
+    public function defaulty($a = 'default a', $b = 'default b', $c = 'default c')
+    {
+        return func_get_args();
+    }
+
+    public function defaultyBandC($a, $b = 'default b', $c = 'default c')
+    {
+        return func_get_args();
+    }
+
+    public function defaultyOnlyC($a, $b, $c = 'default c')
+    {
+        return func_get_args();
+    }
+
+    public function noDefault($a, $b, $c)
+    {
+        return func_get_args();
+    }
+}