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71029cea2d
This updates all source files to use a new standard header for copyright and license declaration. Notably, copyright no longer includes a date, and we now use the standard SPDX-License-Identifier header. This commit was done almost entirely mechanically with perl, and then some minimal manual fixes. Updates #6865 Signed-off-by: Will Norris <will@tailscale.com>
63 lines
1.3 KiB
Go
63 lines
1.3 KiB
Go
// Copyright (c) Tailscale Inc & AUTHORS
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// SPDX-License-Identifier: BSD-3-Clause
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// testwrapper is a wrapper for retrying flaky tests, using the -exec flag of
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// 'go test'. Tests that are flaky can use the 'flakytest' subpackage to mark
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// themselves as flaky and be retried on failure.
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package main
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import (
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"context"
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"errors"
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"log"
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"os"
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"os/exec"
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)
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const (
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retryStatus = 123
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maxIterations = 3
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)
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func main() {
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ctx := context.Background()
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debug := os.Getenv("TS_TESTWRAPPER_DEBUG") != ""
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log.SetPrefix("testwrapper: ")
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if !debug {
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log.SetFlags(0)
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}
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for i := 1; i <= maxIterations; i++ {
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if i > 1 {
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log.Printf("retrying flaky tests (%d of %d)", i, maxIterations)
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}
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cmd := exec.CommandContext(ctx, os.Args[1], os.Args[2:]...)
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cmd.Stdout = os.Stdout
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cmd.Stderr = os.Stderr
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cmd.Env = append(os.Environ(), "TS_IN_TESTWRAPPER=1")
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err := cmd.Run()
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if err == nil {
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return
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}
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var exitErr *exec.ExitError
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if !errors.As(err, &exitErr) {
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if debug {
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log.Printf("error isn't an ExitError")
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}
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os.Exit(1)
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}
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if code := exitErr.ExitCode(); code != retryStatus {
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if debug {
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log.Printf("code (%d) != retryStatus (%d)", code, retryStatus)
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}
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os.Exit(code)
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}
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}
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log.Printf("test did not pass in %d iterations", maxIterations)
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os.Exit(1)
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}
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