Add the first batch of unit tests

tests/Content/TestCase.php

@@ -4,7 +4,6 @@
 
 use Kirby\Cms\App;
 use Kirby\Data\Data;
-use Kirby\Filesystem\Dir;
 use Kirby\TestCase as BaseTestCase;
 
 class TestCase extends BaseTestCase

tests/Panel/Controller/ChangesTest.php

@@ -0,0 +1,81 @@
+<?php
+
+namespace Kirby\Panel\Controller;
+
+use Kirby\Cms\Page;
+use Kirby\Data\Data;
+use Kirby\TestCase;
+
+class ChangesTest extends TestCase
+{
+	public const TMP = KIRBY_TMP_DIR . '/Panel.Controller.Changes';
+	public Page $page;
+
+	public function setUp(): void
+	{
+		$this->setUpTmp();
+		$this->setUpSingleLanguage();
+	}
+
+	public function tearDown(): void
+	{
+		$this->tearDownTmp();
+	}
+
+	public function testDiscard()
+	{
+		Data::write($file = $this->model->root() . '/_changes/article.txt', []);
+
+		$response = Changes::discard($this->model);
+
+		$this->assertSame(['status' => 'ok'], $response);
+
+		$this->assertFileDoesNotExist($file);
+	}
+
+	public function testPublish()
+	{
+		Data::write($this->model->root() . '/article.txt', []);
+		Data::write($file = $this->model->root() . '/_changes/article.txt', []);
+
+		$response = Changes::publish($this->model, [
+			'title' => 'Test'
+		]);
+
+		$this->assertSame(['status' => 'ok'], $response);
+
+		// the changes should be gone now
+		$this->assertFileDoesNotExist($file);
+
+		// and the content file should be updated with the input
+		$published = Data::read($this->model->root() . '/article.txt');
+
+		$this->assertSame(['title' => 'Test'], $published);
+	}
+
+	public function testSave()
+	{
+		Data::write($this->model->root() . '/article.txt', []);
+		Data::write($this->model->root() . '/_changes/article.txt', []);
+
+		$response = Changes::save($this->model, [
+			'title' => 'Test'
+		]);
+
+		$this->assertSame(['status' => 'ok'], $response);
+
+		// the content file should be untouched
+		$published = Data::read($this->model->root() . '/article.txt');
+
+		$this->assertSame([], $published);
+
+		// the changes file should have the changes
+		$changes = Data::read($this->model->root() . '/_changes/article.txt');
+
+		$this->assertSame(['title' => 'Test'], $changes);
+	}
+
+	public function testUnlock()
+	{
+	}
+}

tests/TestCase.php

@@ -4,6 +4,7 @@
 
 use Kirby\Cms\App;
 use Kirby\Cms\File;
+use Kirby\Cms\ModelWithContent;
 use Kirby\Cms\Page;
 use Kirby\Cms\Site;
 use Kirby\Cms\User;
@@ -13,6 +14,7 @@
 class TestCase extends BaseTestCase
 {
 	protected App $app;
+	protected ModelWithContent $model;
 
 	/**
 	 * Whether $actual is a File object