clipboard.test.ts

/*
 * Copyright 2021-Present The Serverless Workflow Specification Authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import { copyToClipboard } from "../../src/lib/clipboard";
import { describe, it, expect, vi, afterEach } from "vitest";

describe("copyToClipboard", () => {
  const originalClipboard = Object.getOwnPropertyDescriptor(navigator, "clipboard");

  afterEach(() => {
    if (originalClipboard) {
      Object.defineProperty(navigator, "clipboard", originalClipboard);
    } else {
      delete (navigator as unknown as { clipboard?: Clipboard }).clipboard;
    }
  });

  it("copies text to clipboard successfully", async () => {
    const mockWriteText = vi.fn().mockResolvedValue(undefined);
    Object.defineProperty(navigator, "clipboard", {
      value: { writeText: mockWriteText },
      writable: true,
      configurable: true,
    });

    const testCode = "flowchart TD\n  A --> B";
    await copyToClipboard(testCode);
    expect(mockWriteText).toHaveBeenCalledWith(testCode);
  });

  it("rejects if clipboard API is not available", async () => {
    Object.defineProperty(navigator, "clipboard", {
      value: undefined,
      writable: true,
      configurable: true,
    });

    await expect(copyToClipboard("test")).rejects.toThrow(
      "Clipboard API is not available in this environment",
    );
  });
});