Add XPath tests and missing file

Author: jaimeperez

tests/XML/ds/XPathTest.php

@@ -0,0 +1,76 @@
+<?php
+
+declare(strict_types=1);
+
+namespace SimpleSAML\XMLSecurity\Test\XML\ds;
+
+use PHPUnit\Framework\TestCase;
+use SimpleSAML\Test\XML\SerializableXMLTestTrait;
+use SimpleSAML\XML\DOMDocumentFactory;
+use SimpleSAML\XMLSecurity\XML\ds\XPath;
+
+/**
+ * Class \SimpleSAML\XMLSecurity\Test\XML\ds\XPathTest
+ *
+ * @covers \SimpleSAML\XMLSecurity\XML\ds\XPath
+ *
+ * @package simplesamlphp/xml-security
+ */
+class XPathTest extends TestCase
+{
+    use SerializableXMLTestTrait;
+
+
+    /**
+     */
+    public function setUp(): void
+    {
+        $this->testedClass = XPath::class;
+
+        $this->xmlRepresentation = DOMDocumentFactory::fromFile(
+            dirname(dirname(dirname(__FILE__))) . '/resources/xml/ds_XPath.xml'
+        );
+    }
+
+
+    public function testMarshalling(): void
+    {
+        $xpath = new XPath(
+            'self::xenc:CipherValue[@Id="example1"]',
+            [
+                'xenc' => 'http://www.w3.org/2001/04/xmlenc#'
+            ]
+        );
+
+        $this->assertEquals('self::xenc:CipherValue[@Id="example1"]', $xpath->getExpression());
+        $namespaces = $xpath->getNamespaces();
+        $this->assertCount(1, $namespaces);
+        $this->assertArrayHasKey('xenc', $namespaces);
+        $this->assertEquals('http://www.w3.org/2001/04/xmlenc#', $namespaces['xenc']);
+
+        $this->assertEquals(
+            $this->xmlRepresentation->saveXML($this->xmlRepresentation->documentElement),
+            strval($xpath)
+        );
+    }
+
+
+    /**
+     */
+    public function testUnmarshalling(): void
+    {
+        $xpath = XPath::fromXML($this->xmlRepresentation->documentElement);
+        $this->assertEquals('self::xenc:CipherValue[@Id="example1"]', $xpath->getExpression());
+        $namespaces = $xpath->getNamespaces();
+        $this->assertCount(2, $namespaces);
+        $this->assertEquals('xenc', array_keys($namespaces)[0]);
+        $this->assertEquals('ds', array_keys($namespaces)[1]);
+
+
+        $this->assertEquals(
+            $this->xmlRepresentation->saveXML($this->xmlRepresentation->documentElement),
+            strval($xpath)
+        );
+    }
+
+}

tests/resources/xml/ds_Transform_InclusiveNamespaces.xml

@@ -0,0 +1,4 @@
+<ds:Transform xmlns:ds="http://www.w3.org/2000/09/xmldsig#" Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#">
+  <ec:InclusiveNamespaces PrefixList="dsig soap #default"
+    xmlns:ec="http://www.w3.org/2001/10/xml-exc-c14n#"/>
+</ds:Transform>

tests/resources/xml/ds_XPath.xml

@@ -0,0 +1 @@
+<ds:XPath xmlns:ds="http://www.w3.org/2000/09/xmldsig#" xmlns:xenc="http://www.w3.org/2001/04/xmlenc#">self::xenc:CipherValue[@Id="example1"]</ds:XPath>