Xml schema testing

CHANGELOG.md

@@ -1,4 +1,5 @@
 Changelog
 =========
 
+* **2013-12-27**: Added XmlSchemaTestCase to test XML schema's
 * **2013-11-17**: Added DatabaseTestListener to support database testing

src/Symfony/Cmf/Component/Testing/Unit/Constraint/SchemaAcceptsXml.php

@@ -0,0 +1,60 @@
+<?php
+
+namespace Symfony\Cmf\Component\Testing\Unit\Constraint;
+
+class SchemaAcceptsXml extends \PHPUnit_Framework_Constraint
+{
+    protected $schemaFile;
+    protected $failingElement;
+    protected $errors;
+
+    public function __construct($schemaFile)
+    {
+        $this->schemaFile = $schemaFile;
+    }
+
+    public function matches($others)
+    {
+        foreach ($others as $id => $other) {
+            $configElement = $other->getElementsByTagName('config');
+
+            if (1 !== $configElement->length) {
+                throw new \InvalidArgumentException(sprintf('Can only test a file if it contains 1 <config> element, %d given', $configElement->length));
+            }
+
+            $configDom = new \DomDocument();
+            $configDom->appendChild($configDom->importNode($configElement->item(0), true));
+
+            libxml_use_internal_errors(true);
+            if (!$configDom->schemaValidate($this->schemaFile)) {
+                $this->errors = libxml_get_errors();
+                $this->failingElement = $id;
+                return false;
+            }
+        }
+
+        return true;
+    }
+
+    public function toString() { }
+
+    protected function failureDescription($others)
+    {
+        return sprintf(
+            '"%s" is accepted by the XML schema "%s"',
+            \PHPUnit_Util_Type::export($others[$this->failingElement]),
+            $this->schemaFile
+        );
+    }
+
+    protected function additionalFailureDescription($other)
+    {
+        $str = '';
+
+        foreach ($this->errors as $error) {
+            $str .= $error->message.($error->file ? ' in'.$error->file : '').' on line '.$error->line."\n";
+        }
+
+        return $str;
+    }
+}

src/Symfony/Cmf/Component/Testing/Unit/XmlSchemaTestCase.php

@@ -0,0 +1,31 @@
+<?php
+
+namespace Symfony\Cmf\Component\Testing\Unit;
+
+class XmlSchemaTestCase extends \PHPUnit_Framework_TestCase
+{
+    public static function assertSchemaAcceptsXml($xmlDoms, $schemaPath, $message = '')
+    {
+        if (!is_array($xmlDoms)) {
+            $xmlDoms = array($xmlDoms);
+        }
+
+        $xmlDoms = array_map(function ($dom) {
+            if (is_string($dom)) {
+                $xml = $dom;
+                $dom = new \DOMDocument();
+                $dom->load($xml);
+
+                return $dom;
+            }
+
+            if (!$dom instanceof \DOMDocument) {
+                throw new \InvalidArgumentException(sprintf('The first argument of assertSchemaAcceptsXml should be instances of \DOMDocument, "%s" given', get_class($dom)));
+            }
+
+            return $dom;
+        }, $xmlDoms);
+
+        return self::assertThat($xmlDoms, new Constraint\SchemaAcceptsXml($schemaPath), $message);
+    }
+}

tests/Fixtures/schema/schema1.xsd

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+<?xml version="1.0" encoding="UTF-8" ?>
+
+<xsd:schema xmlns="http://cmf.symfony.com/schema/dic/foo"
+    xmlns:xsd="http://www.w3.org/2001/XMLSchema"
+    targetNamespace="http://cmf.symfony.com/schema/dic/foo"
+    elementFormDefault="qualified">
+
+    <xsd:element name="config" type="config" />
+
+    <xsd:complexType name="config">
+        <xsd:attribute name="required" use="required" />
+    </xsd:complexType>
+</xsd:schema>

tests/Unit/XmlSchemaTestCaseTest.php

@@ -0,0 +1,63 @@
+<?php
+
+namespace Tests\Unit;
+
+use Symfony\Cmf\Component\Testing\Unit\XmlSchemaTestCase;
+
+class XmlSchemaTestCaseTest extends XmlSchemaTestCase
+{
+    /**
+     * @dataProvider getAssertingData
+     */
+    public function testAsserting($input, $schemaFile, $result, $message = null)
+    {
+        $failed = false;
+
+        try {
+            $this->assertSchemaAcceptsXml($input, $schemaFile);
+        } catch (\PHPUnit_Framework_ExpectationFailedException $e) {
+            $failed = true;
+        }
+
+        if ($failed) {
+            $this->assertFalse($result, 'schema should accept xml');
+        } else {
+            $this->assertTrue($result, 'schema should not accept xml');
+            if ($message) {
+                $this->assertEquals($message, $e->getMessage());
+            }
+        }
+    }
+
+    public function getAssertingData()
+    {
+        $schema1 = __DIR__.'/../Fixtures/schema/schema1.xsd';
+
+        $data = array();
+
+        $dom1 = new \DomDocument();
+        $dom1->loadXML('<container><config xmlns="http://cmf.symfony.com/schema/dic/foo" required="f"/></container>');
+        $data[] = array($dom1, $schema1, true);
+
+        $dom2 = new \DomDocument();
+        $dom2->loadXML('<container><config xmlns="http://cmf.symfony.com/schema/dic/foo" /></container>');
+        $data[] = array($dom2, $schema1, false);
+
+        $data[] = array(array($dom1, $dom1), $schema1, true);
+        $data[] = array(array($dom1, $dom2), $schema1, false);
+        $data[] = array(array($dom2, $dom1), $schema1, false);
+
+        return $data;
+    }
+
+    /**
+     * @expectedException \InvalidArgumentException
+     */
+    public function testFailsIfNoConfigElementIsAvailable()
+    {
+        $dom = new \DomDocument();
+        $dom->loadXML('<container></container>');
+
+        $this->assertSchemaAcceptsXml($dom, __DIR__.'/../Fixtures/schema/schema1.xsd');
+    }
+}