Allow using Wikidata links for fetching information for actors

tests/NodaWikidataFetcherTest.php

@@ -0,0 +1,59 @@
+<?PHP
+/**
+ * This script contains tests for the home page.
+ *
+ * @author Joshua Ramon Enslin <joshua@museum-digital.de>
+ */
+declare(strict_types = 1);
+use PHPUnit\Framework\TestCase;
+require_once __DIR__ . "/../src/NodaWikidataFetcher.php";
+require_once __DIR__ . "/../../MDErrorReporter/exceptions/generic/MDExpectedException.php";
+require_once __DIR__ . "/../../MD_STD/src/MD_STD.php";
+
+/**
+ * Tests for home page.
+ */
+final class NodaWikidataFetcherTest extends TestCase {
+    /**
+     * Test to check whether the HTML page is correctly generated.
+     *
+     * @author Joshua Ramon Enslin <joshua@museum-digital.de>
+     * @group  ValidOutput
+     *
+     * @return void
+     */
+    public function testWikidataIdFromLink():void {
+
+        self::assertEquals(NodaWikidataFetcher::getWikidataIdFromLink("https://www.wikidata.org/wiki/Q106697"), 'Q106697');
+        self::assertEquals(NodaWikidataFetcher::getWikidataIdFromLink("https://de.wikipedia.org/wiki/Fedor_Jagor"), 'Q106697');
+
+    }
+
+    /**
+     * Test to check whether the HTML page is correctly generated.
+     *
+     * @author Joshua Ramon Enslin <joshua@museum-digital.de>
+     * @group  ValidOutput
+     *
+     * @return void
+     */
+    public function testWikidataIdFromWikipediaRequiresWikipediaLink():void {
+
+        self::assertEquals(NodaWikidataFetcher::getWikidataIdFromWikipedia("https://en.about.museum-digital.org/"), '');
+
+    }
+
+    /**
+     * Test to check whether the HTML page is correctly generated.
+     *
+     * @author Joshua Ramon Enslin <joshua@museum-digital.de>
+     * @group  ValidOutput
+     *
+     * @return void
+     */
+    public function testCanGetWikidataIdByWikidataId():void {
+
+        self::assertEquals(NodaWikidataFetcher::getWikidataIdFromWikidataLink("https://www.wikidata.org/wiki/Q106697"), "Q106697");
+
+    }
+}