Add tests for Admin_Settings::register_settings(). (#241)

tests/phpunit/tests/AdminSettings/AdminSettings_RegisterSettingsTest.php

@@ -0,0 +1,196 @@
+<?php
+/**
+ * Class AdminSettings_RegisterSettingsTest
+ *
+ * @package AspireUpdate
+ */
+
+/**
+ * Tests for Admin_Settings::register_settings()
+ *
+ * @covers \AspireUpdate\Admin_Settings::register_settings
+ */
+class AdminSettings_RegisterSettingsTest extends AdminSettings_UnitTestCase {
+	/**
+	 * A backup of $wp_registered_settings.
+	 *
+	 * @var array|null
+	 */
+	private static $wp_registered_settings_backup;
+
+	/**
+	 * Backs up registered settings before any tests run.
+	 *
+	 * @return void
+	 */
+	public static function set_up_before_class() {
+		parent::set_up_before_class();
+
+		global $wp_registered_settings;
+		self::$wp_registered_settings_backup = $wp_registered_settings;
+	}
+
+	/**
+	 * Resets registered settings after each test runs.
+	 *
+	 * @return void
+	 */
+	public function tear_down() {
+		global $wp_registered_settings;
+
+		if ( self::$wp_registered_settings_backup ) {
+			$wp_registered_settings = self::$wp_registered_settings_backup;
+		} else {
+			unset( $wp_registered_settings );
+		}
+
+		parent::tear_down();
+	}
+
+	/**
+	 * Test that the main setting is registered.
+	 *
+	 * @return void
+	 */
+	public function test_should_register_setting() {
+		global $wp_registered_settings;
+
+		$admin_settings = new AspireUpdate\Admin_Settings();
+		$admin_settings->register_settings();
+
+		$this->assertIsArray( $wp_registered_settings );
+		$this->assertArrayHasKey( self::$option_name, $wp_registered_settings );
+	}
+
+	/**
+	 * Test that the expected settings section is registered.
+	 *
+	 * @dataProvider data_settings_sections
+	 *
+	 * @param string $section_id The ID of the settings section.
+	 */
+	public function test_should_register_settings_section( $section_id ) {
+		global $wp_settings_sections;
+
+		$admin_settings = new AspireUpdate\Admin_Settings();
+		$admin_settings->register_settings();
+
+		$this->assertIsArray(
+			$wp_settings_sections,
+			'There are no settings sections.'
+		);
+
+		$this->assertArrayHasKey(
+			self::$options_page,
+			$wp_settings_sections,
+			'There is no entry for the plugin in settings sections.'
+		);
+
+		$this->assertIsArray(
+			$wp_settings_sections[ self::$options_page ],
+			'There are no settings sections registered for the plugin.'
+		);
+
+		$this->assertArrayHasKey(
+			$section_id,
+			$wp_settings_sections[ self::$options_page ],
+			"Section {$section_id} is not registered."
+		);
+	}
+
+	/**
+	 * Data provider.
+	 *
+	 * @return array[]
+	 */
+	public function data_settings_sections() {
+		return self::text_array_to_dataprovider(
+			[
+				'aspireupdate_settings_section',
+				'aspireupdate_debug_settings_section',
+			]
+		);
+	}
+
+	/**
+	 * Test that the expected settings field is registered.
+	 *
+	 * @dataProvider data_settings_fields
+	 *
+	 * @param string $section_id The ID of the settings section.
+	 * @param string $field_id   The ID of the settings field.
+	 */
+	public function test_should_register_settings_field( $section_id, $field_id ) {
+		global $wp_settings_fields;
+
+		$admin_settings = new AspireUpdate\Admin_Settings();
+		$admin_settings->register_settings();
+
+		$this->assertIsArray(
+			$wp_settings_fields,
+			'There are no settings sections.'
+		);
+
+		$this->assertArrayHasKey(
+			self::$options_page,
+			$wp_settings_fields,
+			'There is no entry for the plugin in settings sections.'
+		);
+
+		$this->assertIsArray(
+			$wp_settings_fields[ self::$options_page ],
+			'There are no settings sections registered for the plugin.'
+		);
+
+		$this->assertArrayHasKey(
+			$section_id,
+			$wp_settings_fields[ self::$options_page ],
+			"Section {$section_id} is not registered."
+		);
+
+		$this->assertIsArray(
+			$wp_settings_fields[ self::$options_page ],
+			"There are no fields registered for Section {$section_id}."
+		);
+
+		$this->assertArrayHasKey(
+			$field_id,
+			$wp_settings_fields[ self::$options_page ][ $section_id ],
+			"Field {$field_id} is not registered for Section {$section_id}."
+		);
+	}
+
+	/**
+	 * Data provider.
+	 *
+	 * @return array[]
+	 */
+	public function data_settings_fields() {
+		return [
+			'aspireupdate_settings_section -> enable'   => [
+				'section_id' => 'aspireupdate_settings_section',
+				'field_id'   => 'enable',
+			],
+			'aspireupdate_settings_section -> api_host' => [
+				'section_id' => 'aspireupdate_settings_section',
+				'field_id'   => 'api_host',
+			],
+			'aspireupdate_settings_section -> api_key'  => [
+				'section_id' => 'aspireupdate_settings_section',
+				'field_id'   => 'api_key',
+			],
+			'aspireupdate_debug_settings_section -> enable_debug' => [
+				'section_id' => 'aspireupdate_debug_settings_section',
+				'field_id'   => 'enable_debug',
+			],
+			'aspireupdate_debug_settings_section -> enable_debug_type' => [
+				'section_id' => 'aspireupdate_debug_settings_section',
+				'field_id'   => 'enable_debug_type',
+			],
+			'aspireupdate_debug_settings_section -> disable_ssl_verification' => [
+				'section_id' => 'aspireupdate_debug_settings_section',
+				'field_id'   => 'disable_ssl_verification',
+			],
+		];
+	}
+}