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cmd/go: ensure that runtime/cgo is not stale in TestExecBuildX

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Fixes #29004

Change-Id: Ifc8330b47fbec6f902057cb9b6db44f2c0082056
Reviewed-on: https://go-review.googlesource.com/c/go/+/183838
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Jay Conrod <jayconrod@google.com>
This commit is contained in:
Bryan C. Mills 2019-06-25 09:17:28 -04:00
parent 98e1bd2b79
commit 3f83c83bd6
1 changed files with 5 additions and 0 deletions
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5
src/cmd/go/go_test.go
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@ -5061,6 +5061,11 @@ func TestExecBuildX(t *testing.T) {
tg.tempDir("cache")
tg.setenv("GOCACHE", tg.path("cache"))
// Before building our test main.go, ensure that an up-to-date copy of
// runtime/cgo is present in the cache. If it isn't, the 'go build' step below
// will fail with "can't open import". See golang.org/issue/29004.
tg.run("build", "runtime/cgo")
tg.tempFile("main.go", `package main; import "C"; func main() { print("hello") }`)
src := tg.path("main.go")
obj := tg.path("main")