1 files changed, 58 insertions, 0 deletions
diff --git a/test/fixtures/dom-test.js b/test/fixtures/dom-test.js
new file mode 100644
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--- /dev/null
+++ b/test/fixtures/dom-test.js
@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2023  Yomitan Authors
+ * Copyright (C) 2020-2022  Yomichan Authors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+import fs from 'fs';
+import {test} from 'vitest';
+import {builtinEnvironments} from 'vitest/environments';
+
+/**
+ * @param {import('jsdom').DOMWindow} window
+ */
+function prepareWindow(window) {
+    const {document} = window;
+
+    // Define innerText setter as an alias for textContent setter
+    Object.defineProperty(window.HTMLDivElement.prototype, 'innerText', {
+        set(value) { this.textContent = value; }
+    });
+
+    // Placeholder for feature detection
+    document.caretRangeFromPoint = () => null;
+}
+
+/**
+ * @param {string} [htmlFilePath]
+ * @returns {import('vitest').TestAPI<{window: import('jsdom').DOMWindow}>}
+ */
+export function createDomTest(htmlFilePath) {
+    const html = typeof htmlFilePath === 'string' ? fs.readFileSync(htmlFilePath, {encoding: 'utf8'}) : '<!DOCTYPE html>';
+    return test.extend({
+        // eslint-disable-next-line no-empty-pattern
+        window: async ({}, use) => {
+            const env = builtinEnvironments.jsdom;
+            const {teardown} = await env.setup(global, {jsdom: {html}});
+            const window = /** @type {import('jsdom').DOMWindow} */ (/** @type {unknown} */ (global.window));
+            prepareWindow(window);
+            try {
+                await use(window);
+            } finally {
+                teardown(global);
+            }
+        }
+    });
+}