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Posted to notifications@texera.apache.org by "aglinxinyuan (via GitHub)" <gi...@apache.org> on 2026/08/22 07:29:17 UTC
[PR] test(workflow-core): cover the lakeFS file document against the loopback stub [texera]
aglinxinyuan opened a new pull request, #7831:
URL: https://github.com/apache/texera/pull/7831
### What changes were proposed in this PR?
Test-only. **No production file changes** — `git diff -- '*/src/main/*'` is empty.
`LakeFSFileDocument` looked Docker-gated and is not: `LakeFSStorageClientSpec` (merged in #7273) already drives `LakeFSStorageClient` against an in-process `com.sun.net.httpserver` loopback stub, and already covers the exact two calls the document makes. This PR reuses that harness.
Measured with `WorkflowCore/jacoco` under an identical filter for the before and after runs (the Docker-backed `LakeFSStorageClientMtimeSpec` is excluded from **both**, so these differ from the Codecov figures, which include it):
| File | Lines | Branches |
|---|---|---|
| `LakeFSFileDocument.scala` | 32/80 (40.0%) → **65/80 (81.2%)** | 16/46 → **27/46** |
| `LakeFSStorageClient.scala` | 120/146 (82.2%) → **133/146 (91.1%)** | 41/60 → **45/60** |
**+33 lines and +11 branch arms** on the document, **+13 lines** on the client. Tests **38 → 49**.
Covered: `asInputStream`'s presign happy path and its fallback (the local `def fallbackToLakeFS` lifts to `fallbackToLakeFS$1`, a counted method rather than an `$anonfun$`, which is why these lines move the number at all), `asFile` both arms including the `tempFile` memoization, `clear` both arms, and `LakeFSStorageClient.put`.
The 15 lines still missed on the document are exactly the out-of-scope region — lines 133-161, the `userJwtToken`-non-empty file-service presign branch. Reaching it needs a forked JVM with `USER_JWT_TOKEN` set **and** a presign endpoint on a *fixed* port known before JVM start, i.e. a `build.sbt` `testGrouping` change plus a hardcodable port that can collide in CI. Deliberately excluded.
### Verification
Review proposed 8 findings. **Six were real survivors and are now killed**, each proved red on a named test after the repair; two are genuinely unpinnable here and are recorded in the spec rather than papered over. Suite 47 → 49 after repair.
| Survivor found by review | How it is now killed |
|---|---|
| both `asInputStream` call sites reduced to `fileRelativePath.getFileName.toString` | a nested-fixture read test that kills the pair *and* each site alone |
| widening the `put` success guard to `code >= 400` | rejection test extended to 403/204/307; the 204 and 307 single-leg widenings each die separately |
| deleting `inputStream.close()` | a recording-subclass test, deterministic on any platform |
| re-downloading into the memoized `File` | `requests.clear()` plus `hits shouldBe empty` |
| dropping `setChunkedStreamingMode` | the stub now records request headers; the put test pins `content-length: 5` and the absence of `transfer-encoding` |
| `Files.exists shouldBe true` was JDK-guaranteed | now `Files.size == 2502` — and the mutant fails *at that line* rather than 12 lines later |
**Two limits, argued rather than cargo-culted.** The fallback `logger.warn` at :110 cannot be pinned: `workflow-core`'s test classpath has no SLF4J provider at all ("No SLF4J providers were found", NOP loggers), and scala-logging's `isWarnEnabled` guard means the call is not even evaluated — a capturing appender has nothing to attach to. And `deleteRepo` (1 line) was left alone: it is `repoApi.deleteRepository(name).execute()` with no branch, so the only assertable fact is the generated SDK's own URL template. The existing spec already documents that rationale and I did not contradict it for one line.
### Two production bugs found while doing this, reported not fixed
Both are out of scope for a test-only PR and neither is cemented by any new test.
1. **`LakeFSFileDocument.scala:204` renders the relative path with the platform separator.** On a Windows worker, every nested dataset/model file is requested as `dir\file.csv` in the lakeFS `path` query parameter — 404, silent fallback, 404 again. A reviewer's suggested assertion of `Some("nested/dir/records.csv")` would be red against today's production, which is how this surfaced. Fix is a one-line `'/'`-join and wants its own PR.
2. **`tempFileStream.close()` is load-bearing on Windows only.** Deleting it fails 4 tests here with "file is being used by another process" (the cleanup hits an open write handle) while shipping green through Linux CI. `FileOutputStream` is unbuffered, so no portable in-process assertion can observe it; wrapping the copy in `try`/`finally` is production work.
### Any related issues, documentation, discussions?
Closes #7830
### How was this PR tested?
```
sbt "WorkflowCore/testOnly org.apache.texera.amber.core.storage.model.LakeFSFileDocumentSpec org.apache.texera.amber.core.storage.util.LakeFSStorageClientSpec"
```
```
[info] Suites: completed 2, aborted 0
[info] Tests: succeeded 49, failed 0, canceled 0, ignored 0, pending 0
```
`scalafmtCheckAll` and `scalafixAll --check` both pass. `LakeFSFileDocumentSpec` gains `@NonParallelTest` so it gets its own forked JVM, matching the sibling spec.
### Was this PR authored or co-authored using generative AI tooling?
Generated-by: Claude Code (Opus 5)
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Re: [PR] test(workflow-core): cover the lakeFS file document against the loopback stub [texera]
Posted by "github-actions[bot] (via GitHub)" <gi...@apache.org>.
github-actions[bot] commented on PR #7831:
URL: https://github.com/apache/texera/pull/7831#issuecomment-5379016560
<!-- texera-reviewer-suggestion -->
### Automated Reviewer Suggestions
Based on the `git blame` history of the changed files, we recommend the following reviewers:
- **Contributors with relevant context:** `@tanishqgandhi1908`
You can notify them by mentioning `@tanishqgandhi1908` in a comment.
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Re: [PR] test(workflow-core): cover the lakeFS file document against the loopback stub [texera]
Posted by "aglinxinyuan (via GitHub)" <gi...@apache.org>.
aglinxinyuan merged PR #7831:
URL: https://github.com/apache/texera/pull/7831
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Re: [PR] test(workflow-core): cover the lakeFS file document against the loopback stub [texera]
Posted by "codecov-commenter (via GitHub)" <gi...@apache.org>.
codecov-commenter commented on PR #7831:
URL: https://github.com/apache/texera/pull/7831#issuecomment-5379025856
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<details><summary>Additional details and impacted files</summary>
```diff
@@ Coverage Diff @@
## main #7831 +/- ##
=========================================
Coverage 91.50% 91.50%
Complexity 4501 4501
=========================================
Files 1177 1177
Lines 47489 47489
Branches 5324 5324
=========================================
Hits 43457 43457
Misses 2366 2366
Partials 1666 1666
```
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Re: [PR] test(workflow-core): cover the lakeFS file document against the loopback stub [texera]
Posted by "github-actions[bot] (via GitHub)" <gi...@apache.org>.
github-actions[bot] commented on PR #7831:
URL: https://github.com/apache/texera/pull/7831#issuecomment-5379038506
<!-- texera-benchmarks-comment -->
## ⚠️ Benchmark changes need a look
🟢 0 better · 🔴 10 worse · ⚪ 5 noise (<±5%) · 0 without baseline
> Compared against main `8ca9db2` benchmarked on **this same runner**, so the delta is largely free of cross-runner hardware noise. The "7d avg" column still reflects the gh-pages dashboard. Treat <±5% as noise unless repeated.
[Dashboard](https://apache.github.io/texera/dev/bench/) · [Run](https://github.com/apache/texera/actions/runs/32559718602)
| | config | throughput | MB/s | latency | max Δ latest / 7d |
|---|---|---:|---:|---:|---:|
| 🔴 | bs=10 sw=10 sl=64 | 372 | 0.227 | 27,585/38,503/38,503 us | 🔴 +39.7% / 🔴 +156.8% |
| 🔴 | bs=100 sw=10 sl=64 | 896 | 0.547 | 108,116/151,910/151,910 us | 🔴 +30.0% / 🔴 +43.2% |
| ⚪ | bs=1000 sw=10 sl=64 | 1,108 | 0.676 | 905,913/968,270/968,270 us | ⚪ within ±5% / 🟢 -6.8% |
<details><summary>Baseline details</summary>
Latest main `8ca9db2` from same runner
| config | metric | PR | latest main | 7d avg | Δ latest | Δ 7d |
|---|---|---:|---:|---:|---:|---:|
| bs=10 sw=10 sl=64 | throughput | 372 tuples/sec | 452 tuples/sec | 780.31 tuples/sec | -17.7% | -52.3% |
| bs=10 sw=10 sl=64 | MB/s | 0.227 MB/s | 0.276 MB/s | 0.476 MB/s | -17.8% | -52.3% |
| bs=10 sw=10 sl=64 | p50 | 27,585 us | 19,746 us | 12,590 us | +39.7% | +119.1% |
| bs=10 sw=10 sl=64 | p95 | 38,503 us | 30,403 us | 14,995 us | +26.6% | +156.8% |
| bs=10 sw=10 sl=64 | p99 | 38,503 us | 30,403 us | 19,141 us | +26.6% | +101.2% |
| bs=100 sw=10 sl=64 | throughput | 896 tuples/sec | 959 tuples/sec | 1,006 tuples/sec | -6.6% | -10.9% |
| bs=100 sw=10 sl=64 | MB/s | 0.547 MB/s | 0.585 MB/s | 0.614 MB/s | -6.5% | -10.9% |
| bs=100 sw=10 sl=64 | p50 | 108,116 us | 102,938 us | 99,387 us | +5.0% | +8.8% |
| bs=100 sw=10 sl=64 | p95 | 151,910 us | 116,824 us | 106,056 us | +30.0% | +43.2% |
| bs=100 sw=10 sl=64 | p99 | 151,910 us | 116,824 us | 113,689 us | +30.0% | +33.6% |
| bs=1000 sw=10 sl=64 | throughput | 1,108 tuples/sec | 1,112 tuples/sec | 1,043 tuples/sec | -0.4% | +6.2% |
| bs=1000 sw=10 sl=64 | MB/s | 0.676 MB/s | 0.679 MB/s | 0.637 MB/s | -0.4% | +6.2% |
| bs=1000 sw=10 sl=64 | p50 | 905,913 us | 902,928 us | 965,215 us | +0.3% | -6.1% |
| bs=1000 sw=10 sl=64 | p95 | 968,270 us | 960,237 us | 1,009,610 us | +0.8% | -4.1% |
| bs=1000 sw=10 sl=64 | p99 | 968,270 us | 960,237 us | 1,039,108 us | +0.8% | -6.8% |
</details>
<details><summary>Raw CSV</summary>
```csv
config_idx,batch_size,schema_width,string_len,num_batches,total_ms,total_tuples,total_bytes,tuples_per_sec,mb_per_sec,lat_p50_us,lat_p95_us,lat_p99_us
0,10,10,64,20,537.23,200,128000,372,0.227,27585.30,38503.13,38503.13
1,100,10,64,20,2231.85,2000,1280000,896,0.547,108116.03,151909.70,151909.70
2,1000,10,64,20,18053.79,20000,12800000,1108,0.676,905912.93,968269.69,968269.69
```
</details>
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Re: [PR] test(workflow-core): cover the lakeFS file document against the loopback stub [texera]
Posted by "Copilot (via GitHub)" <gi...@apache.org>.
Copilot commented on code in PR #7831:
URL: https://github.com/apache/texera/pull/7831#discussion_r3835553682
##########
common/workflow-core/src/test/scala/org/apache/texera/amber/core/storage/model/LakeFSFileDocumentSpec.scala:
##########
@@ -37,6 +74,126 @@ class LakeFSFileDocumentSpec extends AnyFlatSpec with Matchers {
// URI parsing is shared by every resource type; exercise it through the dataset type.
private def datasetDoc(uri: URI) = new LakeFSFileDocument(uri, ResourceType.Dataset)
+ // -----------------------------------------------------------------------------------------
+ // Loopback stub
+ // -----------------------------------------------------------------------------------------
+
+ /** One recorded request. Fields are read directly; never destructured in a `case` pattern. */
+ private case class Hit(method: String, path: String, query: Map[String, String])
+
+ private val requests = new ConcurrentLinkedQueue[Hit]()
+ private var server: HttpServer = _
+ private var serverPool: ExecutorService = _
+
+ /** Request paths that should answer 500 instead of being served, for this one test. */
+ @volatile private var failing: Set[String] = Set.empty
+
+ private val repositoryName = "texera-file-doc"
+ private val fileName = "records.csv"
+ // Most dataset and model files live under a directory, so the read path is driven over both
+ // shapes: `fileName` at the repository root, and this nested path.
+ //
+ // getFileRelativePath() renders a parsed path with the *platform* separator, so every expectation
+ // over a multi-segment path — here and in the URI block above — is derived through Paths.get
+ // exactly as production renders it. Spelling out a literal "nested/dir/records.csv" instead would
+ // assert a normalization the class does not do (it would fail on Windows today), not a choice the
+ // class makes.
+ private val nestedSegments = Seq("nested", "dir", fileName)
+
+ private def statPath = s"/api/v1/repositories/$repositoryName/refs/$versionHash/objects/stat"
+ private def objectPath = s"/api/v1/repositories/$repositoryName/refs/$versionHash/objects"
+ private def presignedPath = "/signed-blob/records.csv"
+
+ // Longer than asFile's 1024-byte copy buffer and not a multiple of it (2502 bytes), so the copy
+ // loop runs several times and ends on a short read that must not be padded out to a full buffer.
+ private val presignedContent: String = "presigned-payload;" * 139
+ // Deliberately different bytes, and a different length, from the presigned payload.
+ private val fallbackContent: String = "direct-lakefs-download"
+
+ private def presignedUrl: String =
+ s"http://127.0.0.1:${server.getAddress.getPort}$presignedPath"
+
+ private def objectStatsJson: String =
+ s"""{"path":"$fileName","path_type":"object","physical_address":"$presignedUrl",
+ |"checksum":"chk","mtime":1700000000,"size_bytes":${presignedContent.length}}""".stripMargin
+
+ private def handle(exchange: HttpExchange): Unit = {
+ try {
+ val uri = exchange.getRequestURI
+ val query = Option(uri.getRawQuery)
+ .filter(_.nonEmpty)
+ .map(_.split("&").toList.map { pair =>
+ def dec(s: String) = URLDecoder.decode(s, StandardCharsets.UTF_8.name())
+ pair.indexOf('=') match {
+ case -1 => dec(pair) -> ""
+ case i => dec(pair.substring(0, i)) -> dec(pair.substring(i + 1))
+ }
+ }.toMap)
+ .getOrElse(Map.empty[String, String])
+ requests.add(Hit(exchange.getRequestMethod, uri.getPath, query))
+
+ val (status, body) =
+ if (failing.contains(uri.getPath)) (500, """{"message":"stubbed failure"}""")
+ else
+ uri.getPath match {
+ case p if p == statPath => (200, objectStatsJson)
+ case p if p == presignedPath => (200, presignedContent)
+ case p if p == objectPath => (200, fallbackContent)
+ case p => (501, s"""{"message":"no stub route for $p"}""")
+ }
+
+ val bytes = body.getBytes(StandardCharsets.UTF_8)
+ exchange.getResponseHeaders.set("Content-Type", "application/json")
+ exchange.sendResponseHeaders(status, bytes.length.toLong)
+ exchange.getResponseBody.write(bytes)
Review Comment:
The loopback stub always sets `Content-Type: application/json`, but the `presignedPath` and direct `objects` download routes return raw bytes (not JSON). Using a binary content type makes the stub closer to real lakeFS/object-store responses and avoids accidentally relying on JSON content handling in the HTTP client.
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