Add missing namespace (#138)

When prefixing classes from the global namespace, the namespace statement may be missing.

Closes #135.

specs/namespace/creation-for-whitelist.php

@@ -0,0 +1,300 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * This file is part of the humbug/php-scoper package.
+ *
+ * Copyright (c) 2017 Théo FIDRY <[email protected]>,
+ *                    Pádraic Brady <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+return [
+    'meta' => [
+        'title' => 'Namespace declaration creation for whitelisted classes which belong to the global namespace.',
+        // Default values. If not specified will be the one used
+        'prefix' => 'Humbug',
+        'whitelist' => [],
+    ],
+
+    'Single class should receive namespace' => <<<'PHP'
+<?php
+
+class AppKernel
+{
+}
+
+----
+<?php
+
+namespace Humbug;
+
+class AppKernel
+{
+}
+
+PHP
+    ,
+
+    'Single abstract class should receive namespace.' => <<<'PHP'
+<?php
+
+abstract class AppKernel
+{
+}
+
+----
+<?php
+
+namespace Humbug;
+
+abstract class AppKernel
+{
+}
+
+PHP
+    ,
+
+    'Final class declaration should be prefixed.' => <<<'PHP'
+<?php
+
+final class AppKernel {}
+----
+<?php
+
+namespace Humbug;
+
+final class AppKernel
+{
+}
+
+PHP
+    ,
+
+    'Interfaces can be whitelisted too.' => <<<'PHP'
+<?php
+
+interface AppKernel
+{
+}
+
+----
+<?php
+
+namespace Humbug;
+
+interface AppKernel
+{
+}
+
+PHP
+    ,
+
+    'Multiple classes should all receive namespace in the same file.' => <<<'PHP'
+<?php
+
+class AppKernalOther2
+{
+}
+
+class AppKernel
+{
+}
+
+class AppKernalOther
+{
+}
+
+----
+<?php
+
+namespace {
+    class AppKernalOther2
+    {
+    }
+}
+namespace Humbug {
+    class AppKernel
+    {
+    }
+}
+namespace {
+    class AppKernalOther
+    {
+    }
+}
+
+PHP
+    ,
+
+    'Multiple interfaces should all receive namespace in the same file.' => <<<'PHP'
+<?php
+
+interface AppKernel
+{
+}
+
+class AppKernalOther
+{
+}
+
+interface SomeInterface
+{
+}
+
+----
+<?php
+
+namespace Humbug {
+    interface AppKernel
+    {
+    }
+}
+namespace {
+    class AppKernalOther
+    {
+    }
+}
+namespace {
+    interface SomeInterface
+    {
+    }
+}
+
+PHP
+    ,
+
+    'Defines should be wrapped in namespace alongside whitelisted class.' => <<<'PHP'
+<?php
+
+define("MY_DEFINE", "value");
+
+class AppKernel
+{
+}
+
+----
+<?php
+
+namespace {
+    \define("MY_DEFINE", "value");
+}
+namespace Humbug {
+    class AppKernel
+    {
+    }
+}
+
+PHP
+    ,
+
+    'Make sure anonymous classes are not wrapped.' => <<<'PHP'
+<?php
+
+new class {};
+
+class AppKernel
+{
+}
+
+----
+<?php
+
+namespace {
+    new class
+    {
+    };
+}
+namespace Humbug {
+    class AppKernel
+    {
+    }
+}
+
+PHP
+    ,
+
+    'Make sure traits are not prefixed.' => <<<'PHP'
+<?php
+
+trait AppKernel
+{
+}
+
+----
+<?php
+
+trait AppKernel
+{
+}
+
+PHP
+    ,
+
+    'Make sure traits are not prefixed next to whitelisted class.' => <<<'PHP'
+<?php
+
+trait SomeTrait
+{
+}
+
+class AppKernel
+{
+}
+
+----
+<?php
+
+namespace {
+    trait SomeTrait
+    {
+    }
+}
+namespace Humbug {
+    class AppKernel
+    {
+    }
+}
+
+PHP
+    ,
+
+    'Traits in different namespace.' => <<<'PHP'
+<?php
+
+namespace Foo {
+    trait SomeTrait{}
+}
+
+namespace {
+    class AppKernel{}
+}
+
+namespace {
+    class Bla{}
+}
+
+----
+<?php
+
+namespace Humbug\Foo {
+    trait SomeTrait
+    {
+    }
+}
+namespace Humbug {
+    class AppKernel
+    {
+    }
+}
+namespace {
+    class Bla
+    {
+    }
+}
+
+PHP
+];