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cmd/go: TestScript/gotoolchain_path fails if golang.org/dl/go1.21.1 is installed in the user's $PATH #62709

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bcmills opened this issue Sep 18, 2023 · 4 comments
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GoCommand cmd/go NeedsFix The path to resolution is known, but the work has not been done. release-blocker Testing An issue that has been verified to require only test changes, not just a test failure.
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@bcmills
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bcmills commented Sep 18, 2023

~$ gotip version
go version devel go1.22-ee788dba Sat Sep 9 01:48:44 2023 +0000 linux/amd64

~$ gotip test cmd/go -run=TestScript/gotoolchain_path
vcs-test.golang.org rerouted to http://127.0.0.1:44505
https://vcs-test.golang.org rerouted to https://127.0.0.1:45531
go test proxy running at GOPROXY=http://127.0.0.1:44641/mod
--- FAIL: TestScript (0.19s)
    --- FAIL: TestScript/gotoolchain_path (0.38s)
        script_test.go:132: 2023-09-18T20:24:15Z
        script_test.go:134: $WORK=/tmp/cmd-go-test-1726110853/tmpdir535136021/gotoolchain_path2675966255
        script_test.go:156:
            # This test only checks that basic PATH lookups work.
            # The full test of toolchain version selection is in gotoolchain.txt. (0.000s)
            # Compile a fake toolchain to put in the path under various names. (0.241s)
            # GOTOOLCHAIN=go1.50.0 (0.010s)
            # GOTOOLCHAIN=path with toolchain line (0.017s)
            # GOTOOLCHAIN=path with go line (0.010s)
            # GOTOOLCHAIN=auto with toolchain line (0.013s)
            # GOTOOLCHAIN=auto with go line (0.012s)
            # NewerToolchain should find Go 1.50.0. (0.060s)
            > env GOTOOLCHAIN=local
            > go mod edit -toolchain=none -go=1.22
            > grep 'go 1.22$' go.mod
            matched: go 1.22
            > ! grep toolchain go.mod
            > env GOTOOLCHAIN=path
            > ! go run rsc.io/fortune@v0.0.1
            [stderr]
            go: downloading rsc.io/fortune v0.0.1
            go: rsc.io/fortune@v0.0.1 requires go >= 1.21rc999; switching to go1.21.1
            go1.21.1: not downloaded. Run 'go1.21.1 download' to install to /no-home/sdk/go1.21.1
            [exit status 1]
            > stderr 'running go1.50.0 from PATH'
        script_test.go:156: FAIL: testdata/script/gotoolchain_path.txt:67: stderr 'running go1.50.0 from PATH': no match for `(?m)running go1.50.0 from PATH` in stderr
FAIL
FAIL    cmd/go  0.618s
FAIL
@bcmills bcmills added Testing An issue that has been verified to require only test changes, not just a test failure. NeedsFix The path to resolution is known, but the work has not been done. GoCommand cmd/go labels Sep 18, 2023
@bcmills bcmills self-assigned this Sep 18, 2023
@bcmills
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bcmills commented Sep 18, 2023

@gopherbot, please backport to Go 1.21. This causes spurious test failures, and the fix is test-only.

@gopherbot
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Backport issue(s) opened: #62711 (for 1.21).

Remember to create the cherry-pick CL(s) as soon as the patch is submitted to master, according to https://go.dev/wiki/MinorReleases.

@gopherbot
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Change https://go.dev/cl/529217 mentions this issue: cmd/go: in TestScript/gotoolchain_path, remove the user's PATH

@gopherbot
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Change https://go.dev/cl/529435 mentions this issue: [release-branch.go1.21] cmd/go: in TestScript/gotoolchain_path, remove the user's PATH

gopherbot pushed a commit that referenced this issue Sep 19, 2023
…e the user's PATH

This test checks a behavior of GOTOOLCHAIN when an appropriate
toolchain is found in PATH. That requires it to exclude any suitable
toolchain binaries from the user's $PATH, which may otherwise
interfere.

Fixes #62711.
Updates #62709.

Change-Id: Ie9161e52d33a65be0b5265cb49e9f2bc8473e057
Reviewed-on: https://go-review.googlesource.com/c/go/+/529217
Auto-Submit: Bryan Mills <bcmills@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
(cherry picked from commit 30886b1)
Reviewed-on: https://go-review.googlesource.com/c/go/+/529435
Run-TryBot: Bryan Mills <bcmills@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Dmitri Shuralyov <dmitshur@google.com>
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