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Output is a method on T, B and F. It provides an io.Writer that writes
to the same test output stream as TB.Log. The new output writer is
used to refactor the implementation of Log. It maintains the formatting
provided by Log while making call site information optional.
Additionally, it provides buffering of log messages. This fixes and
expands on
https://go-review.googlesource.com/c/go/+/646956.
For #59928.
Change-Id: I08179c35a681f601cf125c0f4aeb648bc10c7a9f
GitHub-Last-Rev: e6e202793c9bc471493187e0556a3a1e7305ff82
GitHub-Pull-Request: golang/go#73703
Reviewed-on: https://go-review.googlesource.com/c/go/+/672395
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Alan Donovan <adonovan@google.com>
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Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Jonathan Amsterdam <jba@google.com>
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This reverts commit 8d189f188e225e4919b34c0c097e75dfda255949.
Reason for revert: failing test
Change-Id: I951087eaef7818697acf87e3206003bcc8a81ee2
Reviewed-on: https://go-review.googlesource.com/c/go/+/672335
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Auto-Submit: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
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Output is a method on T, B and F. It provides an io.Writer that writes
to the same test output stream as TB.Log. The new output writer is
used to refactor the implementation of Log. It maintains the formatting
provided by Log while making call site information optional.
Additionally, it provides buffering of log messages.
Co-authored-by: Aleks Fazlieva <britishrum@users.noreply.github.com>
Fixes #59928.
Change-Id: I29090b3d4f61f7334388b373ec18750d5637aafa
GitHub-Last-Rev: 18af0e15262494f2074d545a6042b079d62301a2
GitHub-Pull-Request: golang/go#71575
Reviewed-on: https://go-review.googlesource.com/c/go/+/646956
Reviewed-by: Arati <artichaut2023@gmail.com>
Auto-Submit: Jonathan Amsterdam <jba@google.com>
Reviewed-by: Jonathan Amsterdam <jba@google.com>
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Reviewed-by: Michael Knyszek <mknyszek@google.com>
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In test files, using testenv.Executable is more reliable than
os.Executable or os.Args[0].
Change-Id: I88e577efeabc20d02ada27bf706ae4523129128e
Reviewed-on: https://go-review.googlesource.com/c/go/+/651955
Reviewed-by: Cherry Mui <cherryyz@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
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reverts CL 506755
Reason for revert: This leads to deadlocks of tests in Google internal testing
For #64402
Change-Id: I78329fc9dcc2377e7e880b264ac1d18d577ef99a
Reviewed-on: https://go-review.googlesource.com/c/go/+/544895
Auto-Submit: Bryan Mills <bcmills@google.com>
Auto-Submit: Lasse Folger <lassefolger@google.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
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While investigating #60083, I found a couple of bugs (notably #61034)
that had slipped through code review in part because the concurrency
patterns used in the testing package were too complex for me to fully
reason about. This change adjusts those patterns to be more in line
with current idioms, and to reduce the number of special cases that
depend on details that should be orthogonal. (For example: the details
of how we invoke the Cleanup functions should not depend on whether
the test happened to run any parallel subtests.)
In the process, this change fixes a handful of bugs:
- Concurrent calls to Run (explicitly allowed by TestParallelSub)
could previously drive the testcontext.running count negative,
causing the number of running parallel tests to exceed the -parallel
flag.
- The -failfast flag now takes effect immediately on failure. It no
longer delays until the test finishes, and no longer misses failures
during cleanup (fixing #61034).
- If a Cleanup function calls runtime.Goexit (typically via t.FailNow)
during a panic, Cleanup functions from its parent tests are no
longer skipped and buffered logs from its parent tests are now
flushed.
- The time reported for a test with subtests now includes the time spent
running those subtests, regardless of whether they are parallel.
(Previously, non-parallel subtests were included but parallel subtests
were not.)
- Calls to (*B).Run in iterations after the first are now diagnosed
with a panic. (This diagnoses badly-behaved benchmarks: if Run is
called during the first iteration, no subsequent iterations are
supposed to occur.)
Fixes #61034.
Change-Id: I3797f6ef5210a3d2d5d6c2710d3f35c0219b02ea
Cq-Include-Trybots: luci.golang.try:gotip-linux-amd64-longtest,gotip-linux-amd64-longtest-race,gotip-windows-amd64-longtest
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Auto-Submit: Bryan Mills <bcmills@google.com>
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Use ^ and $ in the -run flag regular expression value when the intention
is to invoke a single named test. This removes the reliance on there not
being another similarly named test to achieve the intended result.
In particular, package syscall has tests named TestUnshareMountNameSpace
and TestUnshareMountNameSpaceChroot that both trigger themselves setting
GO_WANT_HELPER_PROCESS=1 to run alternate code in a helper process. As a
consequence of overlap in their test names, the former was inadvertently
triggering one too many helpers.
Spotted while reviewing CL 525196. Apply the same change in other places
to make it easier for code readers to see that said tests aren't running
extraneous tests. The unlikely cases of -run=TestSomething intentionally
being used to run all tests that have the TestSomething substring in the
name can be better written as -run=^.*TestSomething.*$ or with a comment
so it is clear it wasn't an oversight.
Change-Id: Iba208aba3998acdbf8c6708e5d23ab88938bfc1e
Reviewed-on: https://go-review.googlesource.com/c/go/+/524948
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
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Also tweak the failure message added in CL 352349.
Updates #18741.
Updates #48515.
Change-Id: I46ed84c6f498d7a68414cc3dab3c1cd55da69aa9
Reviewed-on: https://go-review.googlesource.com/c/go/+/451215
Reviewed-by: Austin Clements <austin@google.com>
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Auto-Submit: Bryan Mills <bcmills@google.com>
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Calling t.Run inside t.Cleanup can mess up the execution order of
registered Cleanup callbacks. Reject calls to Run within Cleanup
callbacks.
Fixes #48515
Change-Id: I61e4cb35253db1a8bbe3351d59055433030aa289
Reviewed-on: https://go-review.googlesource.com/c/go/+/352349
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Reviewed-by: Bryan Mills <bcmills@google.com>
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Fixes #48502
Change-Id: I6054b043ebd2237e19897fdf1234b311d19facc7
Reviewed-on: https://go-review.googlesource.com/c/go/+/352350
Reviewed-by: Joedian Reid <joedian@golang.org>
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Fixes #31651
Change-Id: Idbab0c4355fcc58520e210126795223435cf0078
Reviewed-on: https://go-review.googlesource.com/c/go/+/214822
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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Flush the output log up to the root when a test panics. Prior to
this change, only the current test's output log was flushed to its
parent, resulting in no output when a subtest panics.
For the following test function:
func Test(t *testing.T) {
for i, test := range []int{1, 0, 2} {
t.Run(fmt.Sprintf("%v/%v", i, test), func(t *testing.T) {
_ = 1 / test
})
}
}
Output before this change:
panic: runtime error: integer divide by zero [recovered]
panic: runtime error: integer divide by zero
(stack trace follows)
Output after this change:
--- FAIL: Test (0.00s)
--- FAIL: Test/1/0 (0.00s)
panic: runtime error: integer divide by zero [recovered]
(stack trace follows)
Fixes #32121
Change-Id: Ifee07ccc005f0493a902190a8be734943123b6b7
Reviewed-on: https://go-review.googlesource.com/c/go/+/179599
Run-TryBot: Damien Neil <dneil@google.com>
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