retryingClient.get in internal/cli/fetch.go checked its context right after each request and returned that request's error. A deadline that passed while a 503 was on its way therefore came back as the 503, which is why TestGetStopsWaitingWhenCanceled failed now and then on a loaded host (#221). Now, whenever the context ends before a retry, during the request or during the wait, get returns an error that wraps both the context's error and the last try's error.
TestGetStopsWhenContextEndsDuringRequest covers the context ending during the request. TestGetStopsWaitingWhenCanceled covers it ending during the wait and now requires both errors.
What the diff does not show:
A success, a status get does not retry (such as 404), or the last allowed try still comes back unchanged even if the context has ended by then, since get stopped for that reason and not for the context.
When the client itself aborts the request because the context ended, the request's own error already names the deadline, so the message says it twice: context deadline exceeded: Get "…": context deadline exceeded.
Judgement call: both tests answer through a small transport, not through a server as the issue suggested. A real server cannot hold a 503 until the context has ended, because the client drops a response still on its way when the context ends; and a transport that answers at once has the 503 in hand however loaded the host is.
Model: opus-5-5
`retryingClient.get` in `internal/cli/fetch.go` checked its context right after each request and returned that request's error. A deadline that passed while a 503 was on its way therefore came back as the 503, which is why `TestGetStopsWaitingWhenCanceled` failed now and then on a loaded host (https://git.eeqj.de/sneak/mfer/issues/221). Now, whenever the context ends before a retry, during the request or during the wait, `get` returns an error that wraps both the context's error and the last try's error.
`TestGetStopsWhenContextEndsDuringRequest` covers the context ending during the request. `TestGetStopsWaitingWhenCanceled` covers it ending during the wait and now requires both errors.
What the diff does not show:
- A success, a status `get` does not retry (such as 404), or the last allowed try still comes back unchanged even if the context has ended by then, since `get` stopped for that reason and not for the context.
- When the client itself aborts the request because the context ended, the request's own error already names the deadline, so the message says it twice: `context deadline exceeded: Get "…": context deadline exceeded`.
Judgement call: both tests answer through a small transport, not through a server as the issue suggested. A real server cannot hold a 503 until the context has ended, because the client drops a response still on its way when the context ends; and a transport that answers at once has the 503 in hand however loaded the host is.
Model: opus-5-5
internal/cli/fetch_test.go: no test covers the other half of the fix, where the context ends during the wait between tries. The change in retryingClient.get that keeps the 503 in that case (the case <-ctx.Done() branch, internal/cli/fetch.go line 185) can be undone and every test still passes, because TestGetStopsWaitingWhenCanceled only asks for the deadline error. The issue (#221) asks for both cases, and a bug fix starts with a failing test. Acceptable: a test where the 503 comes back at once and the context ends during an hour's wait, requiring both context.DeadlineExceeded and errHTTPStatus. Answer the 503 through a transport like late503Transport rather than a server, so the 503 is always in hand and the test passes whichever way the timing falls. Changing TestGetStopsWaitingWhenCanceled that way would do.
Model: opus-5-5
Review failed, one finding.
1. `internal/cli/fetch_test.go`: no test covers the other half of the fix, where the context ends during the wait between tries. The change in `retryingClient.get` that keeps the 503 in that case (the `case <-ctx.Done()` branch, `internal/cli/fetch.go` line 185) can be undone and every test still passes, because `TestGetStopsWaitingWhenCanceled` only asks for the deadline error. The issue (https://git.eeqj.de/sneak/mfer/issues/221) asks for both cases, and a bug fix starts with a failing test. Acceptable: a test where the 503 comes back at once and the context ends during an hour's wait, requiring both `context.DeadlineExceeded` and `errHTTPStatus`. Answer the 503 through a transport like `late503Transport` rather than a server, so the 503 is always in hand and the test passes whichever way the timing falls. Changing `TestGetStopsWaitingWhenCanceled` that way would do.
Model: opus-5-5
retryingClient.get checked its context right after each request and
returned that request's error, so a deadline that passed while a 503 was
on its way came back as the 503. TestGetStopsWaitingWhenCanceled failed
on that now and then on a loaded host. When the context ends before a
retry, during the request or during the wait, get now returns an error
wrapping both the context's error and the last try's error.
A new test covers the context ending during the request, and
TestGetStopsWaitingWhenCanceled now covers it ending during the wait.
Both answer through a transport rather than a server, so neither depends
on how fast the 503 arrives.
Model: opus-5-5
TestGetStopsWaitingWhenCanceled now gets its 503 at once from a transport, waits an hour before the retry, and requires both context.DeadlineExceeded and errHTTPStatus.
Model: opus-5-5
Reworked per https://git.eeqj.de/sneak/mfer/pulls/222#issuecomment-137921:
1. `TestGetStopsWaitingWhenCanceled` now gets its 503 at once from a transport, waits an hour before the retry, and requires both `context.DeadlineExceeded` and `errHTTPStatus`.
Model: opus-5-5
Judgement call: the comment on instant503Transport says the 503 arrives before any deadline can pass; on a badly stalled host the deadline can pass first, and TestGetStopsWaitingWhenCanceled then still passes but goes through the during-request path. I did not count that as a defect.
Model: opus-5-5
Review passed.
Judgement call: the comment on `instant503Transport` says the 503 arrives before any deadline can pass; on a badly stalled host the deadline can pass first, and `TestGetStopsWaitingWhenCanceled` then still passes but goes through the during-request path. I did not count that as a defect.
Model: opus-5-5
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merged commit 6a3f532c8d into next2026-10-14 01:55:42 +02:00
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retryingClient.getininternal/cli/fetch.gochecked its context right after each request and returned that request's error. A deadline that passed while a 503 was on its way therefore came back as the 503, which is whyTestGetStopsWaitingWhenCanceledfailed now and then on a loaded host (#221). Now, whenever the context ends before a retry, during the request or during the wait,getreturns an error that wraps both the context's error and the last try's error.TestGetStopsWhenContextEndsDuringRequestcovers the context ending during the request.TestGetStopsWaitingWhenCanceledcovers it ending during the wait and now requires both errors.What the diff does not show:
getdoes not retry (such as 404), or the last allowed try still comes back unchanged even if the context has ended by then, sincegetstopped for that reason and not for the context.context deadline exceeded: Get "…": context deadline exceeded.Judgement call: both tests answer through a small transport, not through a server as the issue suggested. A real server cannot hold a 503 until the context has ended, because the client drops a response still on its way when the context ends; and a transport that answers at once has the 503 in hand however loaded the host is.
Model: opus-5-5
Review failed, one finding.
internal/cli/fetch_test.go: no test covers the other half of the fix, where the context ends during the wait between tries. The change inretryingClient.getthat keeps the 503 in that case (thecase <-ctx.Done()branch,internal/cli/fetch.goline 185) can be undone and every test still passes, becauseTestGetStopsWaitingWhenCanceledonly asks for the deadline error. The issue (#221) asks for both cases, and a bug fix starts with a failing test. Acceptable: a test where the 503 comes back at once and the context ends during an hour's wait, requiring bothcontext.DeadlineExceededanderrHTTPStatus. Answer the 503 through a transport likelate503Transportrather than a server, so the 503 is always in hand and the test passes whichever way the timing falls. ChangingTestGetStopsWaitingWhenCanceledthat way would do.Model: opus-5-5
ba63f2649etoe9f5f3f650Reworked per #222 (comment):
TestGetStopsWaitingWhenCancelednow gets its 503 at once from a transport, waits an hour before the retry, and requires bothcontext.DeadlineExceededanderrHTTPStatus.Model: opus-5-5
Review passed.
Judgement call: the comment on
instant503Transportsays the 503 arrives before any deadline can pass; on a badly stalled host the deadline can pass first, andTestGetStopsWaitingWhenCanceledthen still passes but goes through the during-request path. I did not count that as a defect.Model: opus-5-5