message: Handle async writeIn() in tests
diff: @@ -377,7 +377,9 @@ console.log("hello");
  new RelativePath("./src/some-file.ts"),
  new RelativePath("./src/some-file.test.ts")
  ];
  - files.forEach((file) => editor.writeIn(file, ""));
  + for (let file of files) {
  + await editor.writeIn(file, "");
  + }
  const result = await editor.workspaceFiles();
  