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Dmitri Shuralyov dd16258f48 internal/testdir: simplify and clean up
Now that the bare minimum change to make the run.go test runner into
a normal go test is done, there remain many opportunities to simplify,
modernize and generally clean up the test code.

Of all the opportunities available, this change tries to fit somewhere
between doing "not enough" and "way too much". This ends up including:

• replace verbose flag with testing.Verbose()
• replace custom temporary directory creation, removal, -keep flag
  with testing.T.TempDir
• replace custom code to find the go command with testenv.GoToolPath
• replace many instances of "t.err = err; return" with "return err",
  or with t.Fatal when it's clearly a test infrastructure error
• replace reliance on changing working directory to GOROOT/test to
  computing and using absolute paths
• replace uses of log.Fatal with t.Fatal
• replace uses of deprecated ioutil package with their replacements
• add some missing error checks, use more idiomatic identifier names

For #56844.

Change-Id: I5b301bb83a8e5b64cf211d7f2f4b14d38d48fea0
Reviewed-on: https://go-review.googlesource.com/c/go/+/466155
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
2023-02-28 01:11:40 +00:00
.github .github: suggest using private browsing in pkgsite template 2023-01-03 18:52:47 +00:00
api cmd/go, go/build: parse directives in file headers 2023-02-23 10:10:21 +00:00
doc doc: start draft Go 1.21 release notes 2023-02-22 18:53:00 +00:00
lib/time time/tzdata: generate zip constant during cmd/dist 2023-01-17 22:30:53 +00:00
misc misc/cgo/{life,stdio}: remove reliance on test/run.go 2023-02-28 01:11:11 +00:00
src internal/testdir: simplify and clean up 2023-02-28 01:11:40 +00:00
test cmd/dist, test: convert test/run.go runner to a cmd/go test 2023-02-28 01:11:37 +00:00
.gitattributes
.gitignore time/tzdata: generate zip constant during cmd/dist 2023-01-17 22:30:53 +00:00
CONTRIBUTING.md
LICENSE
PATENTS
README.md README: update from CC-BY-3.0 to CC-BY-4.0 2022-11-02 20:14:56 +00:00
SECURITY.md SECURITY.md: replace golang.org with go.dev 2022-04-26 19:59:47 +00:00
codereview.cfg codereview.cfg: add codereview.cfg for master branch 2021-02-19 18:44:53 +00:00
go.env cmd/go: introduce GOROOT/go.env and move proxy/sumdb config there 2023-01-17 23:10:39 +00:00

README.md

The Go Programming Language

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