N°2651 rollback gitignore for lib tests dirs

Too dangerous ! We'll work properly on this but for 2.8

lib/symfony/config/Tests/Definition/EnumNodeTest.php

@@ -0,0 +1,51 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Tests\Definition;
+
+use PHPUnit\Framework\TestCase;
+use Symfony\Component\Config\Definition\EnumNode;
+
+class EnumNodeTest extends TestCase
+{
+    public function testFinalizeValue()
+    {
+        $node = new EnumNode('foo', null, ['foo', 'bar']);
+        $this->assertSame('foo', $node->finalize('foo'));
+    }
+
+    public function testConstructionWithNoValues()
+    {
+        $this->expectException('InvalidArgumentException');
+        $this->expectExceptionMessage('$values must contain at least one element.');
+        new EnumNode('foo', null, []);
+    }
+
+    public function testConstructionWithOneValue()
+    {
+        $node = new EnumNode('foo', null, ['foo']);
+        $this->assertSame('foo', $node->finalize('foo'));
+    }
+
+    public function testConstructionWithOneDistinctValue()
+    {
+        $node = new EnumNode('foo', null, ['foo', 'foo']);
+        $this->assertSame('foo', $node->finalize('foo'));
+    }
+
+    public function testFinalizeWithInvalidValue()
+    {
+        $this->expectException('Symfony\Component\Config\Definition\Exception\InvalidConfigurationException');
+        $this->expectExceptionMessage('The value "foobar" is not allowed for path "foo". Permissible values: "foo", "bar"');
+        $node = new EnumNode('foo', null, ['foo', 'bar']);
+        $node->finalize('foobar');
+    }
+}