MAGETWO-66771: CLI command config:sensitive:set doesn't encrypt input values

Author: Yevhen Miroshnychenko

app/code/Magento/Config/Console/Command/EmulatedAdminhtmlAreaProcessor.php

@@ -46,7 +46,8 @@ public function __construct(ScopeInterface $scope, State $state)
      *
      * @param callable $callback The callable to be called
      * @param array $params The parameters to be passed to the callback, as an indexed array
-     * @return boolean|integer|float|string|array|object|callable|resource|null
+     * @return bool|int|float|string|array|null - as the result of this method is the result of callback,
+     * you can use callback only with specified in this method return types
      * @throws \Exception The exception is thrown if the parameter $callback throws an exception
      */
     public function process(callable $callback, array $params = [])

app/code/Magento/Config/Test/Unit/Console/Command/EmulatedAdminhtmlAreaProcessorTest.php

@@ -6,6 +6,7 @@
 namespace Magento\Config\Test\Unit\Console\Command;
 
 use Magento\Config\Console\Command\EmulatedAdminhtmlAreaProcessor;
+use Magento\Framework\App\Area;
 use Magento\Framework\App\State;
 use Magento\Framework\Config\ScopeInterface;
 use PHPUnit_Framework_MockObject_MockObject as MockObject;
@@ -51,6 +52,8 @@ protected function setUp()
     public function testProcess()
     {
         $currentScope = 'currentScope';
+        $callback = function () {
+        };
         $this->scopeMock->expects($this->once())
             ->method('getCurrentScope')
             ->willReturn($currentScope);
@@ -60,10 +63,11 @@ public function testProcess()
             ->with($currentScope);
 
         $this->stateMock->expects($this->once())
-            ->method('emulateAreaCode');
+            ->method('emulateAreaCode')
+            ->with(Area::AREA_ADMINHTML, $callback)
+            ->willReturn('result');
 
-        $this->emulatedAdminhtmlProcessorArea->process(function () {
-        });
+        $this->assertEquals('result', $this->emulatedAdminhtmlProcessorArea->process($callback));
     }
 
     /**