Attempt to create a test

[tbrockman]

As requested, currently failing:

theodores-MacBook-Pro:zenfs-core theodorebrockman$ npx tsx tests/backend/single-buffer.test.ts 
▶ SingleBuffer
  ✔ filesystem restoration from original buffer (with same metadata) (10.657334ms)
  ✔ cross-thread SharedArrayBuffer (99.360167ms)
  ✖ should recursively copy files with with same stats (28.865125ms)
✖ SingleBuffer (139.574667ms)
ℹ tests 3
ℹ suites 1
ℹ pass 2
ℹ fail 1
ℹ cancelled 0
ℹ skipped 0
ℹ todo 0
ℹ duration_ms 1017.996416

✖ failing tests:

test at tests/backend/single-buffer.test.ts:1:1499
✖ should recursively copy files with with same stats (28.865125ms)
  Exception [Error]: EISDIR: File is a directory, open '/dst'
      at Module._openSync (file:///Users/theodorebrockman/Documents/dev/zenfs-core/dist/vfs/sync.js:227:15)
      at Module.openSync (file:///Users/theodorebrockman/Documents/dev/zenfs-core/dist/vfs/sync.js:238:27)
      at Module.utimesSync (file:///Users/theodorebrockman/Documents/dev/zenfs-core/dist/vfs/sync.js:623:25)
      at Module.cpSync (file:///Users/theodorebrockman/Documents/dev/zenfs-core/dist/vfs/sync.js:850:20)
      at TestContext.<anonymous> (/Users/theodorebrockman/Documents/dev/zenfs-core/tests/backend/single-buffer.test.ts:66:6)
      at process.processTicksAndRejections (node:internal/process/task_queues:105:5)
      at async Test.run (node:internal/test_runner/test:1054:7)
      at async Suite.processPendingSubtests (node:internal/test_runner/test:744:7) {
    errno: 21,
    code: 'EISDIR',
    path: '/dst',
    dest: undefined,
    syscall: 'open'
  }

[james-pre]

At the moment, tests don't use Passthrough at all. The tests in tests/fs run for each backend and have the data copied over— check out tests/setup.ts. The tests in tests/common only run once (rather than for each backend).

I'm not entirely sure why this test is failing.

I think I'm going to write a test in tests/fs to test a lot of files (maybe like 300), which would definitely trigger metadata block rotation. That should prevent a regression of #224, so this test/PR will be entirely optional. Let me know if you'd still like to work on it. If not, that's okay.

[tbrockman]

I think I'm going to write a test in tests/fs to test a lot of files (maybe like 300), which would definitely trigger metadata block rotation. That should prevent a regression of #224, so this test/PR will be entirely optional. Let me know if you'd still like to work on it. If not, that's okay.

Sounds like you have a better idea than I do about how you'd like to go about testing it! (also am on semi-vacation for the next week or so, so not really writing too much code 👀 )