add tests for unregister_font_collection

phpunit/tests/fonts/font-library/wpFontLibrary/unregisterFontCollection.php

@@ -0,0 +1,48 @@
+<?php
+/**
+ * Test WP_Font_Library::unregister_font_collection().
+ *
+ * @package WordPress
+ * @subpackage Font Library
+ *
+ * @group fonts
+ * @group font-library
+ *
+ * @covers WP_Font_Library::unregister_font_collection
+ */
+class Tests_Fonts_WpFontLibrary_UnregisterFontCollection extends WP_UnitTestCase {
+
+	public function set_up() {
+		$config     = array(
+			'id'             => 'mock-col-to-unregister',
+			'name'           => 'Mock Collection to be unregistered',
+			'description'    => 'A mock font collection to be unregistered.',
+			'data_json_file' => 'my-collection-data.json',
+		);
+		$collection = WP_Font_Library::register_font_collection( $config );
+	}
+
+	public function test_should_unregister_font_collection() {
+		// Unregister mock font collection.
+		$result1 = WP_Font_Library::unregister_font_collection( 'mock-col-to-unregister' );
+		$this->assertTrue( $result1, 'Should return true if it was unregistered succesfully.' );
+		// Try to unregister mock font collection again.
+		$result2 = WP_Font_Library::unregister_font_collection( 'mock-col-to-unregister' );
+		$this->assertFalse( $result2, 'Should return false because it was already unregistered.' );
+	}
+
+	public function test_should_unregister_default_font_collection() {
+		// Unregister default font collection.
+		$result1 = WP_Font_Library::unregister_font_collection( 'default-font-collection' );
+		$this->assertTrue( $result1, 'Should return true if it was unregistered succesfully.' );
+		// Try to unregister default font collection again.
+		$result2 = WP_Font_Library::unregister_font_collection( 'default-font-collection' );
+		$this->assertFalse( $result2, 'Should return false because it was already unregistered.' );
+	}
+
+	public function test_should_unregister_non_existing_font_collection() {
+		// Unregister default font collection.
+		$result = WP_Font_Library::unregister_font_collection( 'fake-collection-id-x1234' );
+		$this->assertFalse( $result );
+	}
+}