Port dav calendar settings page to Vue.js

- Drop reliance on deprecated global jQuery object.
- Allow testing user interactions.
- Use newer technology stack.

---

Test user interactions with the groupware dav settings

Add infrastructure to test Vue components:

- Use recommended libraries:

    - https://vuejs.org/v2/guide/testing.html#Recommendations
    - Use jest-dom for robust assertions on the DOM state
    - Use user-event to be more representative of user actions

- Code is transpiled by Jest, with the help of vue-jest.

Ignore test files for no-unpublished-import. Prevent ESLint from
flagging:

```
/home/runner/work/server/server/apps/dav/src/views/CalDavSettings.spec.js
Error:   1:24  error  "@testing-library/vue" is not published         node/no-unpublished-import
Error:   2:23  error  "@testing-library/user-event" is not published  node/no-unpublished-import
```

Signed-off-by: François Freitag <mail@franek.fr>

1 files changed, 21 insertions, 1 deletions

diff --git a/apps/dav/tests/unit/Settings/CalDAVSettingsTest.php b/apps/dav/tests/unit/Settings/CalDAVSettingsTest.php
index 5c8a89db547..d02990f97ec 100644
--- a/apps/dav/tests/unit/Settings/CalDAVSettingsTest.php
+++ b/apps/dav/tests/unit/Settings/CalDAVSettingsTest.php
@@ -28,6 +28,7 @@ namespace OCA\DAV\Tests\Unit\DAV\Settings;
 
 use OCA\DAV\Settings\CalDAVSettings;
 use OCP\IConfig;
+use OCP\AppFramework\Services\IInitialState;
 use Test\TestCase;
 
 class CalDAVSettingsTest extends TestCase {
@@ -35,6 +36,9 @@ class CalDAVSettingsTest extends TestCase {
 	/** @var IConfig|\PHPUnit\Framework\MockObject\MockObject */
 	private $config;
 
+	/** @var OCP\AppFramework\Services\IInitialState|\PHPUnit\Framework\MockObject\MockObject */
+	private $initialState;
+
 	/** @var CalDAVSettings */
 	private $settings;
 
@@ -42,10 +46,26 @@ class CalDAVSettingsTest extends TestCase {
 		parent::setUp();
 
 		$this->config = $this->createMock(IConfig::class);
-		$this->settings = new CalDAVSettings($this->config);
+		$this->initialState = $this->createMock(IInitialState::class);
+		$this->settings = new CalDAVSettings($this->config, $this->initialState);
 	}
 
 	public function testGetForm() {
+		$this->config->method('getAppValue')
+		   ->withConsecutive(
+			   ['dav', 'sendInvitations', 'yes'],
+			   ['dav', 'generateBirthdayCalendar', 'yes'],
+			   ['dav', 'sendEventReminders', 'yes'],
+			   ['dav', 'sendEventRemindersPush', 'no'],
+		   )
+		   ->will($this->onConsecutiveCalls('yes', 'no', 'yes', 'yes'));
+		$this->initialState->method('provideInitialState')
+			->withConsecutive(
+				['sendInvitations', true],
+				['generateBirthdayCalendar', false],
+				['sendEventReminders', true],
+				['sendEventRemindersPush', true],
+			);
 		$result = $this->settings->getForm();
 
 		$this->assertInstanceOf('OCP\AppFramework\Http\TemplateResponse', $result);