chore: Upgrade to Vitest 4 and regroup tests for performance (#2618)

2026-07-26 11:28:58 -07:00
parent a0fd464d23
commit 0c3d46ad3d
36 changed files with 1041 additions and 1207 deletions
@@ -71,7 +71,11 @@ describe('thumbnail utilities', () => {
    });
    vi.stubGlobal(
      'FileReader',
-      vi.fn(() => mockFileReader),
+      // The source calls `new FileReader()`, and a mock implementation must be
+      // callable with `new`, so it cannot be an arrow function.
+      vi.fn(function () {
+        return mockFileReader;
+      }),
    );

    createFetchThumbnailTask(
@@ -129,7 +133,9 @@ describe('thumbnail utilities', () => {
    const mockFileReader = mock<FileReader>();
    vi.stubGlobal(
      'FileReader',
-      vi.fn(() => mockFileReader),
+      vi.fn(function () {
+        return mockFileReader;
+      }),
    );

    createFetchThumbnailTask(
@@ -166,7 +172,9 @@ describe('thumbnail utilities', () => {
    });
    vi.stubGlobal(
      'FileReader',
-      vi.fn(() => mockFileReader),
+      vi.fn(function () {
+        return mockFileReader;
+      }),
    );

    createFetchThumbnailTask(