diff --git a/tests/SigningTestCase.php b/tests/SigningTestCase.php
new file mode 100644
index 0000000000000000000000000000000000000000..1c48310d17335db8a0c709cd5b07c4383695d923
--- /dev/null
+++ b/tests/SigningTestCase.php
@@ -0,0 +1,193 @@
+<?php
+/**
+ * A test case that provides a certificate directory with public and private
+ * keys.
+ *
+ * @package SimpleSAMLphp
+ */
+
+namespace SimpleSAML\Test;
+
+use PHPUnit\Framework\TestCase;
+use \org\bovigo\vfs\vfsStream;
+
+class SigningTestCase extends TestCase
+{
+    // openssl genrsa -out ca.key.pem 2048
+    protected $ca_private_key = <<<'NOWDOC'
+-----BEGIN RSA PRIVATE KEY-----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+-----END RSA PRIVATE KEY-----
+NOWDOC;
+
+    // openssl req -key ca.key.pem -new -x509 -days 3650 -out ca.cert.pem
+    private $ca_certificate = <<<'NOWDOC'
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
+NOWDOC;
+
+    // openssl genrsa -out good.key.pem 2048
+    protected $good_private_key = <<<'NOWDOC'
+-----BEGIN RSA PRIVATE KEY-----
+MIIEowIBAAKCAQEAqmNn4bt/jrMHgoWtwXLc2ok17BHh1O5ETbn9rK3KFjk3BXp5
+3aGveill+KbW7SgriGZSa1KBE2uaQy2mZpiBQqFrLcgKhtzaCNLyBvKOozQhn/XN
+6m2kN8EDZaGIGxtM/6ypUAnytscGo2bKzyHtOjYOPwEeALiq7+YrR1Bc2X05OyVu
+dV8Wju8QUCm7No85/TOjxD6SrWUXuEPJm0RiyVMeZhuKmtxm0kB2ZtQ0lKViOxaL
+iBRiW9TldY94NaHfgaZSpCmrikoiS4QJ4hTo4nEVpjx+1BDJIar3bfxH+vwuLlOo
+Zg3KI9BYcWm5n+XKwTxnhaBWM8MH3PtmLNbrRwIDAQABAoIBAQCWNpbRogwdkOXR
+AushPZNJMmgQW999aiVbZNooTvp3Ry+jq8seQjnCeBbG9MdMQvrGAHcu2Iikx1sz
+WF532oEybb5gmRf2t2OdHeNzjomDhiUSsZA82TZKVOYaxiKIyzPBv8Vwo6SP0Lyg
+d7HalC1hAWDj2KdLuYIxhvimoUmKDnPS80on0/vKxlevK/2er7nHCIIvHyCS0Q8G
+5AB9LN1bSJIBKm71yHNAUxrv6MUNaLvyCKGv6dea/6ED+gusmcsb4TG7y2nbLOq0
+CSx+YcNozrkAb21nJFKYWKmbMvHdtcBuU2dlgiUN3+rXSD45GlvDSPciqr8iCiUU
+DjHUp8khAoGBAN6aNWAqUhpxMJ0ozJBDPZKnkFml4IjsqXFk5Z2nHwThHonKpIV2
+KaXr4CYfsOQvddAPd9G+ziAaX5QcRBL/91tRGmJR8/kizPpTgxc3SwosJfIQnAkS
+0GNnpM65DyDkvEXGsA7bhD8FXBDFFgB2Jd0tbTh30wyjgXlyrrWTDYx3AoGBAMPz
+vZRQ/MdOY7DtFQ6Uz/GJ5xNojAE+9KYJskNBMAnQTkqUAqTQ8MNHvx1L9J9EhK1A
+rVyrgXvANuIFhCEVMMIrZYweNFe0/nPjBRRcc0rhHw66VZWI4j5Q3tgvl2gwy+LN
+zkvlTOexMu90V9idso+R76++mfK/LWVAf3e36duxAoGAKztX0m1ltKz2/A7Ia9wj
+QTA54K9OhEkyP0uRLKUgaRovjCNHAISKYicFSWIuQKLXBql6Y8nizmlQ1rsGnYoI
+yDtgHGg+McyIcrV1aDTc5gTc+b4wD7MPtb6TS3K1dXX2+rYzyy7m6DZqQveD5mML
+x4DjDWx4GKRIqQWU2L7OitECgYAdEXlcGS+GeXB8fI8VHKpEUIrA7E9ol+g/AU06
+gN8ZdZdHpPFHdd9heLE3LV9aiRWNhfyxtJd+viLmIJ9bMQOMqldkE877+9OLaXAF
+dzl7MC4lRysPBcFaMTD9rQGu6R41xQYHaDqiXD0MHJwzfCFS/vkpfwLjaczYKls+
+bT/54QKBgHsmjU3TqqFn5hTNTFcbwaRtuiSGSgX6Udgfmg2Vl+d0JsANgPd9X9s4
+KXyBC+biIPnDkQEQ6GW+r1VkTl9KBvxqdaertwpErUF2/JkGMmuYQ1Lvsw/gXpvr
+GcEpWSFVRCYKwN+P0FW0fgUaRAyFmoCIvQ3nGtJWH6I0KSS+76r0
+-----END RSA PRIVATE KEY-----
+NOWDOC;
+
+    // openssl req -key good.key.pem -new -out good.csr.pem
+    // openssl x509 \
+    //      -req \
+    //      -CA ca.cert.pem \
+    //      -CAkey ca.key.pem \
+    //      -CAcreateserial \
+    //      -days 3650 \
+    //      -in good.csr.pem \
+    //      -out good.cert.pem
+    protected $good_certificate = <<<'NOWDOC'
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
+NOWDOC;
+
+    const ROOTDIRNAME = 'testdir';
+    const DEFAULTCERTDIR = 'certdir';
+    const CA_PRIVATE_KEY = 'ca.key.pem';
+    const CA_CERTIFICATE = 'ca.cert.pem';
+    const GOOD_PRIVATE_KEY = 'good.key.pem';
+    const GOOD_CERTIFICATE = 'good.cert.pem';
+
+
+    public function getCertDirContent()
+    {
+        return [
+            self::CA_PRIVATE_KEY => $this->ca_private_key,
+            self::CA_CERTIFICATE => $this->ca_certificate,
+            self::GOOD_PRIVATE_KEY => $this->good_private_key,
+            self::GOOD_CERTIFICATE => $this->good_certificate,
+        ];
+    }
+
+
+    public function setUp()
+    {
+        $this->root = vfsStream::setup(
+            self::ROOTDIRNAME,
+            null,
+            [
+                self::DEFAULTCERTDIR => $this->getCertDirContent(),
+            ]
+        );
+        $this->root_directory = vfsStream::url(self::ROOTDIRNAME);
+
+        $this->certdir = $this->root_directory.DIRECTORY_SEPARATOR.self::DEFAULTCERTDIR;
+        $this->ca_private_key_file = $this->certdir.DIRECTORY_SEPARATOR.self::CA_PRIVATE_KEY;
+        $this->ca_certificate_file = $this->certdir.DIRECTORY_SEPARATOR.self::CA_CERTIFICATE;
+        $this->good_private_key_file = $this->certdir.DIRECTORY_SEPARATOR.self::GOOD_PRIVATE_KEY;
+        $this->good_certificate_file = $this->certdir.DIRECTORY_SEPARATOR.self::GOOD_CERTIFICATE;
+
+        $this->config = \SimpleSAML\Configuration::loadFromArray([
+            'certdir' => $this->certdir,
+        ], '[ARRAY]', 'simplesaml');
+    }
+
+
+    public function tearDown()
+    {
+        $this->clearInstance($this->config, '\SimpleSAML\Configuration', []);
+    }
+
+
+    protected function clearInstance($service, $className, $value = null)
+    {
+        $reflectedClass = new \ReflectionClass($className);
+        $reflectedInstance = $reflectedClass->getProperty('instance');
+        $reflectedInstance->setAccessible(true);
+        $reflectedInstance->setValue($service, $value);
+        $reflectedInstance->setAccessible(false);
+    }
+}
diff --git a/tests/lib/SimpleSAML/XML/SignerTest.php b/tests/lib/SimpleSAML/XML/SignerTest.php
index f14ef5111b3fff4d1239583676a2b432c5900ad9..0d39df0e327dfac16463f23f2bce0862262aae66 100644
--- a/tests/lib/SimpleSAML/XML/SignerTest.php
+++ b/tests/lib/SimpleSAML/XML/SignerTest.php
@@ -2,8 +2,11 @@
 
 namespace SimpleSAML\Test\XML;
 
+require_once(__DIR__.'/../../../SigningTestCase.php');
+
 use PHPUnit\Framework\TestCase;
 use \SimpleSAML\Configuration;
+use \SimpleSAML\Test\SigningTestCase;
 use \SimpleSAML\XML\Signer;
 
 use \org\bovigo\vfs\vfsStream;
@@ -11,123 +14,44 @@ use \org\bovigo\vfs\vfsStream;
 /**
  * Tests for SimpleSAML\XML\Signer.
  */
-class SignerTest extends TestCase
+class SignerTest extends SigningTestCase
 {
-    // openssl genrsa -out private.pem 2048
-    private $private_key = <<<'NOWDOC'
------BEGIN RSA PRIVATE KEY-----
-MIIEpAIBAAKCAQEA5LoQYYPfKdHnSnuXI+SiHfUd648Ub0sn2YO81rmnwJ168Ol/
-FZODrGpm8tsRUTz5R9uXXSnwhnWwVJW4ckiZORcp1bEUGI0zXYR387yF3Ih87UFV
-KdqodrDXNN6Id7Xrw65AVa4gjwLN2DNBF3JnjbH7zKtnqhb7u2Qer7Lidhvw4WxY
-lC9t8c+Kv3xoJOgDvlG1gRaYTZv7pxTpBA7W1YnJpOj3xiXetVmAxRcGyB0Jc8aB
-nc1WoUBGudSvjvuc01kJ+rurjgklGEFjVP9AjPfcVkdcFTXc+ECets++AmZc/kk4
-Y6RKCn3fOJlL5L0RxVSJ8obnBcS7H4rZYordfwIDAQABAoIBAH364cTkPompPIyw
-0AmMB6MafFVfZHD8Y0GSJvPaJESaOLny0fWPX4oavQNsl/g37lGe6Jr+26Ujs3CT
-WplP1V01new+cYQoWa9bpDoSj2RtpOmE/6Ri9EETnCVZoK7W+7m3A2Zt1y8N61T2
-vhZtBA5uhvMvQZTUvehz99bsX4GPTUilYHCPEq4IPkfhCMGigv/c0lWtFQhOoNUF
-BjZHezH4Z/qQolIaHpzFZT0K0e7VD4gomBegGsIqPuEJ0gProCjULqA0O5QT4gQX
-IT52pUJuU0061d4JOfDcgDI3NT2SmBBMfig71n/R88eMn0azWKN4rn4/3QjxRW3q
-tdjL0UECgYEA/ynTXtuL7G5zOezKirakuSlSbHu/3TJ+tdG5p7WOLqWADUzgqss+
-k7rxxFUxw40dBpC0LfYP5YMhXi4cBiNoT5EWhT53x/UxCilXHuz5uYcrt/Wyaqa0
-mZuyIPYuw/yTASEBUE/sE1DU82PD3IlkPmqfgEyW6j8CVyLqo/LxMWECgYEA5XoM
-aVB5jhYk8jxy0APWn4jSTm2zpTBZpzHmqTPL19B4Es18XoU+ehWA8rWGQFFwbl1f
-TTUBE1hlS9MgMMI8MK6S1Qrhi7mVrHuMaMbp0ilwDBjv+4DSqlDGDoCSLCLrDkkl
-c0uDLLFGHkfDjNmk3uiSxPZvrUiVVuwJYLGNGt8CgYEAyvjWbsptz7E8b4Nwyk7n
-UXMRYcI+qRIVwUQHTuUZKPn1lp7kyHfMW2+GCgtK/qctw58v9K+bjZJ15JkBKdDY
-lRJwu6UpWyIr1E12Q9919qMTn84OEtBxMQ+s7pNmN/ieZ3N9vAkXXXYbL1DY6IFS
-AGSIZGKIWeWtUusvgyMpwYECgYEArGDIHfxTs0YzLrv1ywh3GpQe1sdVYUs2rX+w
-s32zLETvTcCKIj6ZNgAdQzTUyk/i0yTUyBx+2FdYkGLiFX5y1Gbu6ZYo41rfchfE
-25hAYJy8DHpXG2gj18ihXpd6NilsxOhxd3BL8zCfaXOjE5USYlf2mHo+Xb7eX9Mj
-ID1/r6UCgYBos8plM27v5BzI8gghUlkFAFLmmccJXQHCUlUhT1+d8FTMEhTZGjZk
-94a7cc/ps+6UCp6hOqJ2d6w+cfteWZWP0zMcoxr2JAO9lYekIlUafoZ+mhJCCqoC
-ENg4/K7BqpAlRzCf28gUiL53wOut2CadGIoSvj0UR/Mh2eM64jTgSQ==
------END RSA PRIVATE KEY-----
-NOWDOC;
-
-    // openssl req -new -x509 -key private.pem -out public1.pem -days 3650
-    private $certificate1 = <<<'NOWDOC'
------BEGIN CERTIFICATE-----
-MIIDXTCCAkWgAwIBAgIJAIonjtIRUcfJMA0GCSqGSIb3DQEBCwUAMEUxCzAJBgNV
-BAYTAkFVMRMwEQYDVQQIDApTb21lLVN0YXRlMSEwHwYDVQQKDBhJbnRlcm5ldCBX
-aWRnaXRzIFB0eSBMdGQwHhcNMTcwNjE1MTcyMTI4WhcNMjcwNjEzMTcyMTI4WjBF
-MQswCQYDVQQGEwJBVTETMBEGA1UECAwKU29tZS1TdGF0ZTEhMB8GA1UECgwYSW50
-ZXJuZXQgV2lkZ2l0cyBQdHkgTHRkMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIB
-CgKCAQEA5LoQYYPfKdHnSnuXI+SiHfUd648Ub0sn2YO81rmnwJ168Ol/FZODrGpm
-8tsRUTz5R9uXXSnwhnWwVJW4ckiZORcp1bEUGI0zXYR387yF3Ih87UFVKdqodrDX
-NN6Id7Xrw65AVa4gjwLN2DNBF3JnjbH7zKtnqhb7u2Qer7Lidhvw4WxYlC9t8c+K
-v3xoJOgDvlG1gRaYTZv7pxTpBA7W1YnJpOj3xiXetVmAxRcGyB0Jc8aBnc1WoUBG
-udSvjvuc01kJ+rurjgklGEFjVP9AjPfcVkdcFTXc+ECets++AmZc/kk4Y6RKCn3f
-OJlL5L0RxVSJ8obnBcS7H4rZYordfwIDAQABo1AwTjAdBgNVHQ4EFgQUZHjC+k2X
-pMchyKojQngj5zOsZacwHwYDVR0jBBgwFoAUZHjC+k2XpMchyKojQngj5zOsZacw
-DAYDVR0TBAUwAwEB/zANBgkqhkiG9w0BAQsFAAOCAQEAETjO0RltSYxFdxmIqVIg
-7N6yKptUr46YkWY877HWmCLExHwFLTvewUvbgx7ASYA0YMErnAaVrT9IqCDbOUF+
-RCBovVuiAwwKcvag0C8nKg7rfx7KDr2E8vVV+2WzSpDECtLrpTmrPaje8TlFv8NW
-hMk80osVxnGmI7UewiMzfpRuA4tEKFxHhoQG5LVinWRTMKw6EYmrSKGLdQt/27zj
-xDe0oOS2DDIYbU/oWCqLtlTlzVqrNM7ig9HKcT0Xxgf5rwTDDzNf/dpM/Nt8DWFY
-YmLDnUolf8d/M/kglX1x5IRSN+GxTCgV8i6dIF9EPtBW/AfMz99ojmW+WOgfOLnm
-vg==
------END CERTIFICATE-----
-NOWDOC;
-
-    // openssl req -new -x509 -key private.pem -out public2.pem -days 3650
-    private $certificate2 = <<<'NOWDOC'
+    // openssl req -new -x509 -key good.key.pem -out public2.pem -days 3650
+    private $other_certificate = <<<'NOWDOC'
 -----BEGIN CERTIFICATE-----
-MIIDXTCCAkWgAwIBAgIJAJ6gIIeYjdQSMA0GCSqGSIb3DQEBCwUAMEUxCzAJBgNV
-BAYTAkFVMRMwEQYDVQQIDApTb21lLVN0YXRlMSEwHwYDVQQKDBhJbnRlcm5ldCBX
-aWRnaXRzIFB0eSBMdGQwHhcNMTcwNjE1MTcyMTM0WhcNMjcwNjEzMTcyMTM0WjBF
-MQswCQYDVQQGEwJBVTETMBEGA1UECAwKU29tZS1TdGF0ZTEhMB8GA1UECgwYSW50
-ZXJuZXQgV2lkZ2l0cyBQdHkgTHRkMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIB
-CgKCAQEA5LoQYYPfKdHnSnuXI+SiHfUd648Ub0sn2YO81rmnwJ168Ol/FZODrGpm
-8tsRUTz5R9uXXSnwhnWwVJW4ckiZORcp1bEUGI0zXYR387yF3Ih87UFVKdqodrDX
-NN6Id7Xrw65AVa4gjwLN2DNBF3JnjbH7zKtnqhb7u2Qer7Lidhvw4WxYlC9t8c+K
-v3xoJOgDvlG1gRaYTZv7pxTpBA7W1YnJpOj3xiXetVmAxRcGyB0Jc8aBnc1WoUBG
-udSvjvuc01kJ+rurjgklGEFjVP9AjPfcVkdcFTXc+ECets++AmZc/kk4Y6RKCn3f
-OJlL5L0RxVSJ8obnBcS7H4rZYordfwIDAQABo1AwTjAdBgNVHQ4EFgQUZHjC+k2X
-pMchyKojQngj5zOsZacwHwYDVR0jBBgwFoAUZHjC+k2XpMchyKojQngj5zOsZacw
-DAYDVR0TBAUwAwEB/zANBgkqhkiG9w0BAQsFAAOCAQEA1CqpKLeYLkgRym2qeMhU
-5lKlXAYX5b0eM2SOCCjfpEnRqp2PTU/E83H0MOY6i47OfHp3LKNUj4Kze2DD+S6A
-llpmLfuLXZ/CB19sByzMrcEyUQo4mfqvKyzLhUTgygGczyocwRRZgnw1e+VwMtpf
-mgXnldomDT8CUsM2v3Xb52+JPGSCs16lRYZkgDCQEpHU4+VQxwGAGpj13NM+sidR
-ymj443jgpF6XUviaGiaS292rXMO/tW7veA1UZ2/eTKu5PF9RqDmYLiGatY1qp4tr
-QjBeEjMtDCs9Rqaety/UIaL4ZfOKffLKsKb2mjM/ew+QTwTLDg9RVv5vv2jbZrw7
-Nw==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 -----END CERTIFICATE-----
 NOWDOC;
 
     const ROOTDIRNAME = 'testdir';
     const DEFAULTCERTDIR = 'certdir';
-    const PRIVATEKEY = 'privatekey.pem';
-    const CERTIFICATE1 = 'certificate1.pem';
-    const CERTIFICATE2 = 'certificate2.pem';
-
-    public function setUp()
-    {
-        $this->root = vfsStream::setup(
-            self::ROOTDIRNAME,
-            null,
-            [
-                self::DEFAULTCERTDIR => [
-                    self::PRIVATEKEY => $this->private_key,
-                    self::CERTIFICATE1 => $this->certificate1,
-                    self::CERTIFICATE2 => $this->certificate2,
-                ],
-            ]
-        );
-        $this->root_directory = vfsStream::url(self::ROOTDIRNAME);
-
-        $this->certdir = $this->root_directory.DIRECTORY_SEPARATOR.self::DEFAULTCERTDIR;
-        $this->privatekey_file = $this->certdir.DIRECTORY_SEPARATOR.self::PRIVATEKEY;
-        $this->certificate_file1 = $this->certdir.DIRECTORY_SEPARATOR.self::CERTIFICATE1;
-        $this->certificate_file2 = $this->certdir.DIRECTORY_SEPARATOR.self::CERTIFICATE2;
-
-        $this->config = Configuration::loadFromArray([
-            'certdir' => $this->certdir,
-        ], '[ARRAY]', 'simplesaml');
-    }
+    const OTHER_CERTIFICATE = 'other_certificate.pem';
 
-    public function tearDown()
+    public function getCertDirContent()
     {
-        $this->clearInstance($this->config, '\SimpleSAML\Configuration', []);
+        return [
+            self::GOOD_PRIVATE_KEY => $this->good_private_key,
+            self::GOOD_CERTIFICATE => $this->good_certificate,
+            self::OTHER_CERTIFICATE => $this->other_certificate,
+        ];
     }
 
     public function testSignerBasic()
@@ -147,7 +71,7 @@ NOWDOC;
         $insertInto = $doc->appendChild(new \DOMElement('insert'));
 
         $signer = new Signer([]);
-        $signer->loadPrivateKey($this->privatekey_file, null, true);
+        $signer->loadPrivateKey($this->good_private_key_file, null, true);
         $signer->sign($element, $insertInto);
 
         $res = $doc->saveXML();
@@ -177,13 +101,13 @@ NOWDOC;
         $insertInto = $doc->appendChild(new \DOMElement('insert'));
 
         $signer = new Signer([]);
-        $signer->loadPrivateKey($this->privatekey_file, null, true);
-        $signer->loadCertificate($this->certificate_file1, true);
+        $signer->loadPrivateKey($this->good_private_key_file, null, true);
+        $signer->loadCertificate($this->good_certificate_file, true);
         $signer->sign($element, $insertInto);
 
         $res = $doc->saveXML();
 
-        $expected = self::getCertificateValue($this->certificate1);
+        $expected = self::getCertificateValue($this->good_certificate);
 
         $this->assertContains('X509Certificate', $res);
         $this->assertContains($expected, $res);
@@ -191,6 +115,8 @@ NOWDOC;
 
     public function testSignWithMultiCertificate()
     {
+        $this->other_certificate_file = $this->certdir.DIRECTORY_SEPARATOR.self::OTHER_CERTIFICATE;
+
         $node = new \DOMDocument();
         $node->loadXML('<?xml version="1.0"?><node>value</node>');
         $element = $node->getElementsByTagName("node")->item(0);
@@ -199,15 +125,15 @@ NOWDOC;
         $insertInto = $doc->appendChild(new \DOMElement('insert'));
 
         $signer = new Signer([]);
-        $signer->loadPrivateKey($this->privatekey_file, null, true);
-        $signer->loadCertificate($this->certificate_file1, true);
-        $signer->addCertificate($this->certificate_file2, true);
+        $signer->loadPrivateKey($this->good_private_key_file, null, true);
+        $signer->loadCertificate($this->good_certificate_file, true);
+        $signer->addCertificate($this->other_certificate_file, true);
         $signer->sign($element, $insertInto);
 
         $res = $doc->saveXML();
 
-        $expected1 = self::getCertificateValue($this->certificate1);
-        $expected2 = self::getCertificateValue($this->certificate2);
+        $expected1 = self::getCertificateValue($this->good_certificate);
+        $expected2 = self::getCertificateValue($this->other_certificate);
 
         $this->assertContains('X509Certificate', $res);
         $this->assertContains($expected1, $res);
diff --git a/tests/lib/SimpleSAML/XML/ValidatorTest.php b/tests/lib/SimpleSAML/XML/ValidatorTest.php
index b274ad9a89a7d3b9612228188ae397236052afbf..61d89bd258e7a59bc971f91b9c97cf9b341c063a 100644
--- a/tests/lib/SimpleSAML/XML/ValidatorTest.php
+++ b/tests/lib/SimpleSAML/XML/ValidatorTest.php
@@ -2,8 +2,10 @@
 
 namespace SimpleSAML\Test\XML;
 
+require_once(__DIR__.'/../../../SigningTestCase.php');
+
 use PHPUnit\Framework\TestCase;
-use \SimpleSAML\Configuration;
+use \SimpleSAML\Test\SigningTestCase;
 use \SimpleSAML\XML\Signer;
 use \SimpleSAML\XML\Validator;
 
@@ -12,168 +14,8 @@ use \org\bovigo\vfs\vfsStream;
 /**
  * Tests for SimpleSAML\XML\Validator.
  */
-class ValidatorTest extends TestCase
+class ValidatorTest extends SigningTestCase
 {
-    // openssl genrsa -out ca.key.pem 2048
-    private $ca_private_key = <<<'NOWDOC'
------BEGIN RSA PRIVATE KEY-----
-MIIEpQIBAAKCAQEAtj5GuvnC5aCg8bhq2Yy4isp/uXtRRWKhbB5aYP7/1DwwwQ1Z
-LtBosBAA5SMD4s4L9w/bbJVVVAzhc9cpe2vDYLe1faUZlvOzJv/JuH/ux5NRkgmx
-2qBic1zEEu2KuCQRvNgu4kAbWRS6bxxQWJuhJy5ZJpXRDZOeb8t8JAn6LL6rfMfS
-rwGP2ITaK2lrqvzOaoktHkstGVOg3yn5K15lCKSSBI3qmlYtcU5VnL/kSPY2Gda6
-eF3gDSAflymNhHmaEx6LZM6HWNtJdUjGrcivjynpIdo7DMfL3OTXV8vM0Ad4A55e
-x0020Cn/gXCShwIs9lUrmjUzX/DJ0Rc4vVzGVwIDAQABAoIBAQCOViGEE2KHWmeZ
-o0HA3EmeDP6o7YnSOXB+M06/hypkpwYlIbnP+HJrYHRygmCcmfV6Z2YnbpMQbGcB
-xMDfZpFYTuNvWK2d2oTIJut0MGdcdNE20F+as71xALkbV3AK1hEMf4ROrWcusiPS
-eDjAm/zHz0lN+6Eli3ApPLKeqzQ8EPQhCVkcj2+3WoiL/lE5ImSVN2fiW0tZff/D
-4T42teZWVihnrooovpZ+1/RiOc+rSMdStvIadr9TfUe0s74+3p2XmeKDd/0VgJI/
-G2Lr6AFy5YUahNKfh3XlHwnn9eizl3oUU0wzC4OrvSuXrzAQalF6T8ULHgC5+JuC
-IV+oE1fhAoGBAPCA8aS0lXOiwDUUpZB7fU/h1ZWVksvHs1TtoWooGcNxTqb3FbTE
-seVURBIsrA+qYoz2YGCqoTsbz8743wmoN10b85uoWIjh2ZKPMPMumeMHTMbo7MJ+
-m1bE+m1kQqioYvF86Dp39DjkvuAYDZEUA7SWOqLQ5XFuOgLC8e5jeDDJAoGBAMH8
-VuJRZ0HqmKnRTT9n2vh/0bRkpPx/Umi40qiPWxeVDXHUjJ3d1xlxint7cxjc1OKv
-0cBvRtz3fg0rgy+TA7BQ4oauQSgjiRzbuNmcrR3g4iAC9pZzp+8dJwZ6p1DwiWZU
-Eh1GvJh0obshRetBTvuWj/Mca0ahb3NeYhke1O4fAoGBAOBw9REoFXDcqVLf+cJj
-/AXYU2JNO7lAnHLdcI2I7sIds7DNVUxlYz8I7J2pYskb0OyL4FVV5zEqOzyDtGFm
-woP52dWhvT3AxzKmvp+zFZlw7o2SQaEgVgcbvDjqH+sVeYCzeGVYHGobzqWCzOZf
-LzYQHJhlKjo5C5oYI369BSVBAoGAb1II5h2C3Q/shd9nrhBCV8K6LARprcC/IPuX
-YEXMJ49QxNcNzvZknuRKbSxd05G+1UvCWeVBzEJ24sXqpZ1/S2pPZKyRFaC26Ymp
-3a+MpQ3NlkM9EP/UCmM3Zv9yDv/KSZ/LOWPDjNW5jjK89hFnavdvKjtP0JuJ4rHy
-J6pK1U8CgYEAjDKRReVFJLaWfj8dLskOg4eCMcUj1H1+ADeeXa0B9e75//24Dyrq
-kQRHYowCvEG+j71Fzw8AcC80VzEYMKU50lXOnCb3mHaCJhm2TOK0QYsm36jTVW2w
-mHreqJFXp12lURaL+esz01oaH49ZUzVeZVGmVyOzoSDYEOq9K7L/j14=
------END RSA PRIVATE KEY-----
-NOWDOC;
-
-    // openssl req -key ca.key.pem -new -x509 -days 3650 -out ca.cert.pem
-    private $ca_certificate = <<<'NOWDOC'
------BEGIN CERTIFICATE-----
-MIIDtjCCAp6gAwIBAgIJAII4rW68Q+IsMA0GCSqGSIb3DQEBCwUAMHAxCzAJBgNV
-BAYTAkFVMRMwEQYDVQQIDApTb21lLVN0YXRlMSEwHwYDVQQKDBhJbnRlcm5ldCBX
-aWRnaXRzIFB0eSBMdGQxKTAnBgNVBAMMIEludGVybmV0IFdpZGdpdHMgUHR5IEx0
-ZCBSb290IENBMB4XDTE3MTAxMTIxMjIzOFoXDTI3MTAwOTIxMjIzOFowcDELMAkG
-A1UEBhMCQVUxEzARBgNVBAgMClNvbWUtU3RhdGUxITAfBgNVBAoMGEludGVybmV0
-IFdpZGdpdHMgUHR5IEx0ZDEpMCcGA1UEAwwgSW50ZXJuZXQgV2lkZ2l0cyBQdHkg
-THRkIFJvb3QgQ0EwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQC2Pka6
-+cLloKDxuGrZjLiKyn+5e1FFYqFsHlpg/v/UPDDBDVku0GiwEADlIwPizgv3D9ts
-lVVUDOFz1yl7a8Ngt7V9pRmW87Mm/8m4f+7Hk1GSCbHaoGJzXMQS7Yq4JBG82C7i
-QBtZFLpvHFBYm6EnLlkmldENk55vy3wkCfosvqt8x9KvAY/YhNoraWuq/M5qiS0e
-Sy0ZU6DfKfkrXmUIpJIEjeqaVi1xTlWcv+RI9jYZ1rp4XeANIB+XKY2EeZoTHotk
-zodY20l1SMatyK+PKekh2jsMx8vc5NdXy8zQB3gDnl7HTTbQKf+BcJKHAiz2VSua
-NTNf8MnRFzi9XMZXAgMBAAGjUzBRMB0GA1UdDgQWBBQjqR1+FXBhfbKUUMfdjHp/
-9fMvPTAfBgNVHSMEGDAWgBQjqR1+FXBhfbKUUMfdjHp/9fMvPTAPBgNVHRMBAf8E
-BTADAQH/MA0GCSqGSIb3DQEBCwUAA4IBAQAuUyMn7wz8RUAjW5cbOTvLejYmaPKf
-EzWMYhcRmCQcmqZJ3Sxy+VEBCZsHG+a5R0rXsQ1Iwrgpo7H4d5+CRS6rJcrKAKC+
-1Izaolodnfbz1sQlmHxwkSwDqdb4pWujw7L0YBfvsUc5FGoKfdPUoa6qL/eP1pVH
-0d9JC1ucX+0EmTX9a+3LH0t3evPP2yx53SjQiMoRf/ty7NwfIVxlqWyKFJnUYSF5
-c2jGmls/F+PBVeW51bfK00DpdXLgbgWmNDdePf2fPvpkADGfo/DxLZOTtiY6ngtO
-BdyrA5DmvSuL/Yfq03J9btXX4NnANQFVvfSbun7ts5F1qTkSe/vHCoke
------END CERTIFICATE-----
-NOWDOC;
-
-    // openssl genrsa -out good.key.pem 2048
-    private $good_private_key = <<<'NOWDOC'
------BEGIN RSA PRIVATE KEY-----
-MIIEowIBAAKCAQEAqmNn4bt/jrMHgoWtwXLc2ok17BHh1O5ETbn9rK3KFjk3BXp5
-3aGveill+KbW7SgriGZSa1KBE2uaQy2mZpiBQqFrLcgKhtzaCNLyBvKOozQhn/XN
-6m2kN8EDZaGIGxtM/6ypUAnytscGo2bKzyHtOjYOPwEeALiq7+YrR1Bc2X05OyVu
-dV8Wju8QUCm7No85/TOjxD6SrWUXuEPJm0RiyVMeZhuKmtxm0kB2ZtQ0lKViOxaL
-iBRiW9TldY94NaHfgaZSpCmrikoiS4QJ4hTo4nEVpjx+1BDJIar3bfxH+vwuLlOo
-Zg3KI9BYcWm5n+XKwTxnhaBWM8MH3PtmLNbrRwIDAQABAoIBAQCWNpbRogwdkOXR
-AushPZNJMmgQW999aiVbZNooTvp3Ry+jq8seQjnCeBbG9MdMQvrGAHcu2Iikx1sz
-WF532oEybb5gmRf2t2OdHeNzjomDhiUSsZA82TZKVOYaxiKIyzPBv8Vwo6SP0Lyg
-d7HalC1hAWDj2KdLuYIxhvimoUmKDnPS80on0/vKxlevK/2er7nHCIIvHyCS0Q8G
-5AB9LN1bSJIBKm71yHNAUxrv6MUNaLvyCKGv6dea/6ED+gusmcsb4TG7y2nbLOq0
-CSx+YcNozrkAb21nJFKYWKmbMvHdtcBuU2dlgiUN3+rXSD45GlvDSPciqr8iCiUU
-DjHUp8khAoGBAN6aNWAqUhpxMJ0ozJBDPZKnkFml4IjsqXFk5Z2nHwThHonKpIV2
-KaXr4CYfsOQvddAPd9G+ziAaX5QcRBL/91tRGmJR8/kizPpTgxc3SwosJfIQnAkS
-0GNnpM65DyDkvEXGsA7bhD8FXBDFFgB2Jd0tbTh30wyjgXlyrrWTDYx3AoGBAMPz
-vZRQ/MdOY7DtFQ6Uz/GJ5xNojAE+9KYJskNBMAnQTkqUAqTQ8MNHvx1L9J9EhK1A
-rVyrgXvANuIFhCEVMMIrZYweNFe0/nPjBRRcc0rhHw66VZWI4j5Q3tgvl2gwy+LN
-zkvlTOexMu90V9idso+R76++mfK/LWVAf3e36duxAoGAKztX0m1ltKz2/A7Ia9wj
-QTA54K9OhEkyP0uRLKUgaRovjCNHAISKYicFSWIuQKLXBql6Y8nizmlQ1rsGnYoI
-yDtgHGg+McyIcrV1aDTc5gTc+b4wD7MPtb6TS3K1dXX2+rYzyy7m6DZqQveD5mML
-x4DjDWx4GKRIqQWU2L7OitECgYAdEXlcGS+GeXB8fI8VHKpEUIrA7E9ol+g/AU06
-gN8ZdZdHpPFHdd9heLE3LV9aiRWNhfyxtJd+viLmIJ9bMQOMqldkE877+9OLaXAF
-dzl7MC4lRysPBcFaMTD9rQGu6R41xQYHaDqiXD0MHJwzfCFS/vkpfwLjaczYKls+
-bT/54QKBgHsmjU3TqqFn5hTNTFcbwaRtuiSGSgX6Udgfmg2Vl+d0JsANgPd9X9s4
-KXyBC+biIPnDkQEQ6GW+r1VkTl9KBvxqdaertwpErUF2/JkGMmuYQ1Lvsw/gXpvr
-GcEpWSFVRCYKwN+P0FW0fgUaRAyFmoCIvQ3nGtJWH6I0KSS+76r0
------END RSA PRIVATE KEY-----
-NOWDOC;
-
-    // openssl req -key good.key.pem -new -out good.csr.pem
-    // openssl x509 \
-    //      -req \
-    //      -CA ca.cert.pem \
-    //      -CAkey ca.key.pem \
-    //      -CAcreateserial \
-    //      -days 3650 \
-    //      -in good.csr.pem \
-    //      -out good.cert.pem
-    private $good_certificate = <<<'NOWDOC'
------BEGIN CERTIFICATE-----
-MIIDZTCCAk0CCQC+sxqJmyko6TANBgkqhkiG9w0BAQsFADBwMQswCQYDVQQGEwJB
-VTETMBEGA1UECAwKU29tZS1TdGF0ZTEhMB8GA1UECgwYSW50ZXJuZXQgV2lkZ2l0
-cyBQdHkgTHRkMSkwJwYDVQQDDCBJbnRlcm5ldCBXaWRnaXRzIFB0eSBMdGQgUm9v
-dCBDQTAeFw0xNzEwMTEyMTIzMTRaFw0yNzEwMDkyMTIzMTRaMHkxCzAJBgNVBAYT
-AkFVMRMwEQYDVQQIDApTb21lLVN0YXRlMSEwHwYDVQQKDBhJbnRlcm5ldCBXaWRn
-aXRzIFB0eSBMdGQxMjAwBgNVBAMMKUludGVybmV0IFdpZGdpdHMgUHR5IEx0ZCBU
-ZXN0IENlcnRpZmljYXRlMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA
-qmNn4bt/jrMHgoWtwXLc2ok17BHh1O5ETbn9rK3KFjk3BXp53aGveill+KbW7Sgr
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-0ZppWlc39T6m
------END CERTIFICATE-----
-NOWDOC;
-
-    const ROOTDIRNAME = 'testdir';
-    const DEFAULTCERTDIR = 'certdir';
-    const CA_PRIVATE_KEY = 'ca.key.pem';
-    const CA_CERTIFICATE = 'ca.cert.pem';
-    const GOOD_PRIVATE_KEY = 'good.key.pem';
-    const GOOD_CERTIFICATE = 'good.cert.pem';
-
-    public function setUp()
-    {
-        $this->root = vfsStream::setup(
-            self::ROOTDIRNAME,
-            null,
-            [
-                self::DEFAULTCERTDIR => [
-                    self::CA_PRIVATE_KEY => $this->ca_private_key,
-                    self::CA_CERTIFICATE => $this->ca_certificate,
-                    self::GOOD_PRIVATE_KEY => $this->good_private_key,
-                    self::GOOD_CERTIFICATE => $this->good_certificate,
-                ],
-            ]
-        );
-        $this->root_directory = vfsStream::url(self::ROOTDIRNAME);
-
-        $this->certdir = $this->root_directory.DIRECTORY_SEPARATOR.self::DEFAULTCERTDIR;
-        $this->ca_private_key_file = $this->certdir.DIRECTORY_SEPARATOR.self::CA_PRIVATE_KEY;
-        $this->ca_certificate_file = $this->certdir.DIRECTORY_SEPARATOR.self::CA_CERTIFICATE;
-        $this->good_private_key_file = $this->certdir.DIRECTORY_SEPARATOR.self::GOOD_PRIVATE_KEY;
-        $this->good_certificate_file = $this->certdir.DIRECTORY_SEPARATOR.self::GOOD_CERTIFICATE;
-
-        $this->config = Configuration::loadFromArray([
-            'certdir' => $this->certdir,
-        ], '[ARRAY]', 'simplesaml');
-    }
-
-    public function tearDown()
-    {
-        $this->clearInstance($this->config, '\SimpleSAML\Configuration', []);
-    }
-
     public function testValidatorMissingSignature()
     {
         $doc = new \DOMDocument();
@@ -356,13 +198,4 @@ NOWDOC;
         $this->setExpectedException('\Exception');
         Validator::validateCertificate($this->good_certificate, $ca_file);
     }
-
-    protected function clearInstance($service, $className, $value = null)
-    {
-        $reflectedClass = new \ReflectionClass($className);
-        $reflectedInstance = $reflectedClass->getProperty('instance');
-        $reflectedInstance->setAccessible(true);
-        $reflectedInstance->setValue($service, $value);
-        $reflectedInstance->setAccessible(false);
-    }
 }