trilium/integration-tests/i18n.spec.ts

import test, { expect } from "@playwright/test";

test("User can change language from settings", async ({ page }) => {
    await page.goto("http://localhost:8082");

    // Clear all tabs
    await page.locator(".note-tab:first-of-type").locator("div").nth(1).click({ button: "right" });
    await page.getByText("Close all tabs").click();

    // Go to options -> Appearance
    await page.locator("#launcher-pane div").filter({ hasText: "Options Open New Window" }).getByRole("button").click();
    await page.locator("#launcher-pane").getByText("Options").click();
    await page.locator("#center-pane").getByText("Appearance").click();

    // Check that the default value (English) is set.
    await expect(page.locator("#center-pane")).toContainText("Theme");
    const languageCombobox = await page.getByRole("combobox").first();
    await expect(languageCombobox).toHaveValue("en");

    // Select Chinese and ensure the translation is set.
    languageCombobox.selectOption("cn");
    await expect(page.locator("#center-pane")).toContainText("主题");

    // Select English again.
    languageCombobox.selectOption("en");
});

test("Restores language on start-up on desktop", async ({ page, context }) => {
    await page.goto("http://localhost:8082");
    await expect(page.locator("#launcher-pane").first()).toContainText("Open New Window");
});

test("Restores language on start-up on mobile", async ({ page, context }) => {
    await context.addCookies([
        {
            url: "http://localhost:8082",
            name: "trilium-device",
            value: "mobile"
        }
    ]);
    await page.goto("http://localhost:8082");
    await expect(page.locator("#launcher-pane div").first()).toContainText("Open New Window");
});