Fix spec errors.

composer.json

@@ -38,7 +38,8 @@
         "symfony/validator": "<2.5"
     },
     "require-dev": {
-        "phpspec/phpspec": "^7.2"
+        "phpspec/phpspec": "^7.2",
+        "friends-of-phpspec/phpspec-code-coverage": "^6.1"
     },
     "suggest": {
         "symfony/property-access": "Used in MappingStep",

phpspec.yml.ci

@@ -3,3 +3,5 @@ suites:
     namespace: Port\Steps
     psr4_prefix: Port\Steps
 formatter.name: pretty
+extensions:
+  FriendsOfPhpSpec\PhpSpec\CodeCoverage\CodeCoverageExtension: ~

spec/Step/ValidatorStepSpec.php

@@ -41,6 +41,8 @@ function it_processes_an_item(Step $step, ValidatorInterface $validator, Constra
         $list->count()->willReturn(0);
         $validator->validate($item, Argument::type('Symfony\Component\Validator\Constraints\Collection'))->willReturn($list);
 
+        $constraint->groups = [];
+
         $this->add('foo', $constraint)->shouldReturn($this);
 
         $this->process(
@@ -59,6 +61,8 @@ function it_processes_and_validates_an_item(Step $step, ValidatorInterface $vali
         $list->count()->willReturn(1);
         $validator->validate($item, Argument::type('Symfony\Component\Validator\Constraints\Collection'))->willReturn($list);
 
+        $constraint->groups = [];
+
         $this->add('foo', $constraint)->shouldReturn($this);
 
         $this->process(
@@ -77,6 +81,8 @@ function it_throws_an_exception_when_option_is_not_supported(Step $step, Validat
         $item = ['foo' => true];
         $step->process($item, $next)->shouldNotBeCalled();
 
+        $constraint->groups = [];
+
         $this->add('foo', $constraint)->shouldReturn($this);
         $this->addOption('bar', 'baz')->shouldReturn($this);
 
@@ -100,6 +106,8 @@ function it_throws_an_exception_during_process_when_validation_fails(
         $list = new ConstraintViolationList([$violation->getWrappedObject()]);
         $validator->validate($item, Argument::type('Symfony\Component\Validator\Constraints\Collection'))->willReturn($list);
 
+        $constraint->groups = [];
+
         $this->add('foo', $constraint)->shouldReturn($this);
         $this->throwExceptions();
 
@@ -144,7 +152,7 @@ function it_validates_multiple_items_from_metadata(
         }
 
         $this->getViolations()->shouldReturn(array_fill(1, $numberOfCalls, $list));
-    }    
+    }
 
     function it_tracks_lines_when_exceptions_are_thrown_during_process(
         Step $step,
@@ -161,6 +169,8 @@ function it_tracks_lines_when_exceptions_are_thrown_during_process(
         };
         $item = ['foo' => 10];
 
+        $constraint->groups = [];
+
         $validator->validate($item, Argument::type('Symfony\Component\Validator\Constraints\Collection'))
             ->willReturn($errorList);
 

src/Step/MappingStep.php

@@ -69,9 +69,9 @@ public function process($item, callable $next)
                 }
             }
         } catch (NoSuchPropertyException $exception) {
-            throw new MappingException('Unable to map item', null, $exception);
+            throw new MappingException('Unable to map item', 0, $exception);
         } catch (UnexpectedTypeException $exception) {
-            throw new MappingException('Unable to map item', null, $exception);
+            throw new MappingException('Unable to map item', 0, $exception);
         }
 
         return $next($item);