1 files changed, 98 insertions, 0 deletions
diff --git a/tests/lib/EmojiHelperTest.php b/tests/lib/EmojiHelperTest.php
new file mode 100644
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+++ b/tests/lib/EmojiHelperTest.php
@@ -0,0 +1,98 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * @copyright Copyright (c) 2020, Georg Ehrke
+ *
+ * @author Georg Ehrke <oc.list@georgehrke.com>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+namespace Test;
+
+use OC\EmojiHelper;
+use OCP\IDBConnection;
+use OCP\IEmojiHelper;
+
+class EmojiHelperTest extends TestCase {
+
+	/** @var IDBConnection|\PHPUnit\Framework\MockObject\MockObject */
+	private $db;
+
+	private IEmojiHelper $helper;
+
+	protected function setUp(): void {
+		parent::setUp();
+
+		$this->db = $this->createMock(IDBConnection::class);
+		$this->helper = new EmojiHelper($this->db);
+	}
+
+	/**
+	 * @param bool $supports4ByteText
+	 * @param bool $expected
+	 *
+	 * @dataProvider doesPlatformSupportEmojiDataProvider
+	 */
+	public function testDoesPlatformSupportEmoji(bool $supports4ByteText, bool $expected): void {
+		$this->db->expects($this->once())
+			->method('supports4ByteText')
+			->willReturn($supports4ByteText);
+
+		$this->assertEquals($expected, $this->helper->doesPlatformSupportEmoji());
+	}
+
+	/**
+	 * @return array
+	 */
+	public function doesPlatformSupportEmojiDataProvider(): array {
+		return [
+			[true, true],
+			[false, false],
+		];
+	}
+
+	/**
+	 * @param string $emoji
+	 * @param bool $expected
+	 *
+	 * @dataProvider isValidSingleEmojiDataProvider
+	 */
+	public function testIsValidSingleEmoji(string $emoji, bool $expected): void {
+		$actual = $this->helper->isValidSingleEmoji($emoji);
+
+		$this->assertEquals($expected, $actual);
+	}
+
+	public function isValidSingleEmojiDataProvider(): array {
+		return [
+			['🏝', true],
+			['📱', true],
+			['🏢', true],
+			['📱📠', false],
+			['a', false],
+			['0', false],
+			['$', false],
+			// Test some more complex emojis with modifiers and zero-width-joiner
+			['👩🏿‍💻', true],
+			['🤷🏼‍♀️', true],
+			['🏳️‍🌈', true],
+			['👨‍👨‍👦‍👦', true],
+			['👩‍❤️‍👩', true]
+		];
+	}
+}