test(studio): add e2e coverage for the storage move picker (#50460)

## I have read the
[CONTRIBUTING.md](https://github.com/supabase/supabase/blob/master/CONTRIBUTING.md)
file.

YES

## What kind of change does this PR introduce?

Tests, plus one small test hook in Studio.

## What is the current behavior?

The Storage file explorer's move dialog was recently reworked: the
free-text "Path to new directory" input was replaced with an embedded
folder picker (folder browsing, bucket-wide folder search, a responsive
breadcrumb, and a confirm button that targets the folder currently
open). That work shipped with unit and component tests, but nothing
exercises it end to end against a real bucket.

## What is the new behavior?

New `e2e/studio/features/storage-move.spec.ts` with seven tests:

| Test | What it covers |
| --- | --- |
| moves a file into a folder picked from the explorer | The core path:
open the picker, click a folder, confirm, and assert the file left the
root and landed in the destination |
| offers folders only, never files, as destinations | Files are excluded
from the listing entirely |
| blocks confirming a move into the folder the file already sits in |
The confirm button reports `aria-disabled` when the destination matches
the source |
| finds a nested folder by search and moves into it | Bucket-wide folder
search, including the "`<folder>` in `<location>`" row label |
| reports when a search matches no folders | The empty-search message
instead of a blank list |
| collapses the middle of a deep path into a breadcrumb dropdown | The
responsive breadcrumb: bucket and the two deepest folders stay inline,
the middle collapses, and picking a collapsed folder navigates to it |
| walks back up the path with the up-one-level button | Disabled at the
bucket root, and drops the deepest folder otherwise |

Supporting changes:

- `utils/storage/queries.ts` gains `uploadObject` and `seedBucket`.
Storage has no standalone folders — a folder exists because an object
sits under that prefix — so seeding a folder tree means uploading
objects at the paths a test needs. Doing this through the API keeps
setup off the UI, which is both faster and less flaky than clicking
through "Create folder" for each level.
- `utils/storage/client.ts` accepts a string body so object uploads can
send raw content alongside the existing JSON requests.
- `utils/storage-helpers.ts` gains `openMoveDialog` and `confirmMove`.
- `MoveItemsFolderPicker.tsx` gains `data-testid="folder-picker-list"`
on its list container.

## Additional context

**Why the `data-testid`.** Once a path is deep enough for the breadcrumb
to collapse, the breadcrumb renders crumb buttons whose accessible names
are folder names — so `getByRole('button', { name: 'beta' })` scoped to
the dialog can match either a folder row or a breadcrumb crumb depending
on depth. Scoping row lookups to the list container removes that
ambiguity. This follows the e2e guidance about adding explicit test
hooks where a component lacks an unambiguous accessible name.

**These tests have not been executed.** They were written against the
merged implementation and verified as far as the environment allows:

- `npx playwright test --list` collects all seven
- `tsc --noEmit` is clean for the new spec and helpers (the pre-existing
errors in `column-editor-types.spec.ts`, `table-editor.spec.ts`, and
`wait-for-response-with-timeout.ts` are untouched)
- Studio's unit and component tests (82) still pass, and typecheck,
eslint, prettier, the lint ratchet, and knip are all clean

The suite needs Docker to bring up the local Supabase stack, which
wasn't available where this was authored, so a real run in CI is the
first actual execution. Selectors were all read off the merged source
rather than guessed, but timing assumptions in particular deserve
attention on the first CI run.

**One thing this surfaced, not fixed here.** The success toast reads
`Successfully moved 1 files to docs` — it doesn't singularize. The tests
assert on `/Successfully moved/` rather than the full string so they
don't encode that, but it's worth a follow-up.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

https://claude.ai/code/session_01Q94G7pWso6vQn5FQz6TUns

---
_Generated by [Claude
Code](https://claude.ai/code/session_01Q94G7pWso6vQn5FQz6TUns)_

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

- **Tests**
- Expanded end-to-end coverage for moving files between folders in
Storage.
- Validated folder selection, nested-folder search, empty search
results, collapsed breadcrumbs, and navigation to parent folders.
- Confirmed files are excluded from destination choices and moving to
the current folder is prevented.
- Added coverage for creating isolated test buckets, uploading fixture
files, and confirming successful move operations.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

---------

Co-authored-by: Claude <noreply@anthropic.com>

e2e/studio/features/storage-move.spec.ts

@@ -0,0 +1,229 @@
+import { expect, type Page } from '@playwright/test'
+
+import {
+  confirmMove,
+  navigateToBucket,
+  navigateToStorageFiles,
+  openMoveDialog,
+} from '../utils/storage-helpers.js'
+import { deleteBucket as deleteBucketViaApi, seedBucket } from '../utils/storage/index.js'
+import { test } from '../utils/test.js'
+
+const bucketNamePrefix = 'pw_move'
+
+/**
+ * Seeds a bucket from scratch and lands the explorer inside it. Each test uses its own bucket so
+ * the file can run in parallel with the rest of the suite.
+ */
+const setUpBucket = async (page: Page, ref: string, bucketName: string, objectPaths: string[]) => {
+  await deleteBucketViaApi(bucketName)
+  await seedBucket(bucketName, objectPaths)
+  await navigateToStorageFiles(page, ref)
+  await navigateToBucket(page, ref, bucketName)
+}
+
+test.describe('Storage move file', () => {
+  test('moves a file into a folder picked from the explorer', async ({ page, ref }) => {
+    const bucketName = `${bucketNamePrefix}_basic`
+    const fileName = 'move-me.txt'
+
+    await setUpBucket(page, ref, bucketName, [fileName, 'docs/seed.txt'])
+
+    const dialog = await openMoveDialog(page, fileName)
+    const folderList = dialog.getByTestId('folder-picker-list')
+
+    // The destination starts at the bucket root, so the file is already there
+    await expect(
+      dialog.getByText(`Moving to ${bucketName}`, { exact: true }),
+      'Destination should start at the bucket root'
+    ).toBeVisible()
+
+    await folderList.getByRole('button', { name: 'docs' }).click()
+
+    await expect(
+      dialog.getByText(`Moving to ${bucketName}/docs`, { exact: true }),
+      'Destination should follow the folder that was opened'
+    ).toBeVisible()
+
+    await confirmMove(page, ref, 'docs')
+
+    await expect(
+      page.getByText(/Successfully moved/),
+      'A success toast should confirm the move'
+    ).toBeVisible()
+    await expect(
+      page.getByTitle(fileName),
+      'File should no longer sit at the bucket root'
+    ).not.toBeVisible()
+
+    // Open the destination folder and confirm the file landed there
+    await page.getByTitle('docs').click()
+    await expect(
+      page.getByTitle(fileName),
+      'File should be inside the destination folder'
+    ).toBeVisible()
+  })
+
+  test('offers folders only, never files, as destinations', async ({ page, ref }) => {
+    const bucketName = `${bucketNamePrefix}_folders_only`
+    const fileName = 'picker-source.txt'
+    const siblingFileName = 'sibling.txt'
+
+    await setUpBucket(page, ref, bucketName, [fileName, siblingFileName, 'docs/seed.txt'])
+
+    const dialog = await openMoveDialog(page, fileName)
+    const folderList = dialog.getByTestId('folder-picker-list')
+
+    await expect(
+      folderList.getByRole('button', { name: 'docs' }),
+      'Folders should be listed as destinations'
+    ).toBeVisible()
+    await expect(
+      folderList.getByText(siblingFileName),
+      'Files should not be listed in the picker at all'
+    ).not.toBeVisible()
+    await expect(
+      folderList.getByText(fileName, { exact: true }),
+      'The file being moved should not be listed either'
+    ).not.toBeVisible()
+  })
+
+  test('blocks confirming a move into the folder the file already sits in', async ({
+    page,
+    ref,
+  }) => {
+    const bucketName = `${bucketNamePrefix}_same_folder`
+    const fileName = 'already-here.txt'
+
+    await setUpBucket(page, ref, bucketName, [fileName, 'docs/seed.txt'])
+
+    await openMoveDialog(page, fileName)
+
+    // The picker opens at the bucket root, which is where the file already is
+    await expect(
+      page.getByRole('button', { name: `Move to ${bucketName}` }),
+      'Confirm button should be disabled while the destination matches the source'
+    ).toHaveAttribute('aria-disabled', 'true')
+  })
+
+  test('finds a nested folder by search and moves into it', async ({ page, ref }) => {
+    const bucketName = `${bucketNamePrefix}_search`
+    const fileName = 'needs-filing.txt'
+
+    await setUpBucket(page, ref, bucketName, [fileName, 'reports/2024/q1/seed.txt'])
+
+    const dialog = await openMoveDialog(page, fileName)
+    const folderList = dialog.getByTestId('folder-picker-list')
+
+    await dialog.getByPlaceholder(`Search folders in ${bucketName}...`).fill('q1')
+
+    // Search results name the folder and where it lives, since they span the whole bucket
+    const searchResult = folderList.getByRole('button', { name: 'q1 in reports/2024' })
+    await expect(searchResult, 'Search should surface the deeply nested folder').toBeVisible()
+    await searchResult.click()
+
+    await expect(
+      dialog.getByText(`Moving to ${bucketName}/reports/2024/q1`, { exact: true }),
+      'Picking a search result should set it as the destination'
+    ).toBeVisible()
+
+    await confirmMove(page, ref, 'q1')
+
+    await expect(
+      page.getByText(/Successfully moved/),
+      'A success toast should confirm the move'
+    ).toBeVisible()
+    await expect(
+      page.getByTitle(fileName),
+      'File should no longer sit at the bucket root'
+    ).not.toBeVisible()
+  })
+
+  test('reports when a search matches no folders', async ({ page, ref }) => {
+    const bucketName = `${bucketNamePrefix}_no_results`
+    const fileName = 'stays-put.txt'
+
+    await setUpBucket(page, ref, bucketName, [fileName, 'docs/seed.txt'])
+
+    const dialog = await openMoveDialog(page, fileName)
+    const folderList = dialog.getByTestId('folder-picker-list')
+
+    await dialog.getByPlaceholder(`Search folders in ${bucketName}...`).fill('nothing-matches-this')
+
+    await expect(
+      folderList.getByText('No folders match "nothing-matches-this"'),
+      'An empty search should say so rather than showing a blank list'
+    ).toBeVisible()
+  })
+
+  test('collapses the middle of a deep path into a breadcrumb dropdown', async ({ page, ref }) => {
+    const bucketName = `${bucketNamePrefix}_breadcrumb`
+    const fileName = 'deep-move.txt'
+
+    await setUpBucket(page, ref, bucketName, [fileName, 'alpha/beta/gamma/seed.txt'])
+
+    const dialog = await openMoveDialog(page, fileName)
+    const folderList = dialog.getByTestId('folder-picker-list')
+
+    await folderList.getByRole('button', { name: 'alpha' }).click()
+    await folderList.getByRole('button', { name: 'beta' }).click()
+    await folderList.getByRole('button', { name: 'gamma' }).click()
+
+    await expect(
+      dialog.getByText(`Moving to ${bucketName}/alpha/beta/gamma`, { exact: true }),
+      'Destination should track the folders that were opened'
+    ).toBeVisible()
+
+    // The bucket and the two deepest folders stay inline; "alpha" collapses
+    const breadcrumb = dialog.getByRole('navigation', { name: 'breadcrumb' })
+    await expect(
+      breadcrumb.getByText('beta', { exact: true }),
+      'The second-to-last folder should stay visible'
+    ).toBeVisible()
+    await expect(
+      breadcrumb.getByText('gamma', { exact: true }),
+      'The current folder should stay visible'
+    ).toBeVisible()
+    await expect(
+      breadcrumb.getByText('alpha', { exact: true }),
+      'The middle of the path should collapse out of the breadcrumb'
+    ).not.toBeVisible()
+
+    await breadcrumb.getByRole('button', { name: 'Show the folders in between' }).click()
+    await page.getByRole('menuitem', { name: 'alpha' }).click()
+
+    await expect(
+      dialog.getByText(`Moving to ${bucketName}/alpha`, { exact: true }),
+      'Choosing a collapsed folder should navigate to it'
+    ).toBeVisible()
+    await expect(
+      folderList.getByRole('button', { name: 'beta' }),
+      'Navigating back up should list the folder below it again'
+    ).toBeVisible()
+  })
+
+  test('walks back up the path with the up-one-level button', async ({ page, ref }) => {
+    const bucketName = `${bucketNamePrefix}_up_level`
+    const fileName = 'up-level.txt'
+
+    await setUpBucket(page, ref, bucketName, [fileName, 'outer/inner/seed.txt'])
+
+    const dialog = await openMoveDialog(page, fileName)
+    const folderList = dialog.getByTestId('folder-picker-list')
+
+    const upOneLevel = dialog.getByRole('button', { name: 'Go up one level' })
+    await expect(upOneLevel, 'Up-one-level should be disabled at the bucket root').toBeDisabled()
+
+    await folderList.getByRole('button', { name: 'outer' }).click()
+    await folderList.getByRole('button', { name: 'inner' }).click()
+    await expect(
+      dialog.getByText(`Moving to ${bucketName}/outer/inner`, { exact: true })
+    ).toBeVisible()
+
+    await upOneLevel.click()
+    await expect(
+      dialog.getByText(`Moving to ${bucketName}/outer`, { exact: true }),
+      'Going up one level should drop the deepest folder'
+    ).toBeVisible()
+  })
+})