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aea251d42a
Signed-off-by: Andrew Dunham <andrew@du.nham.ca> Change-Id: Ibab5860f5797b3db151d3c27855333e43a9088a4
47 lines
1.3 KiB
Go
47 lines
1.3 KiB
Go
// Copyright (c) 2023 Tailscale Inc & AUTHORS All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// Package flakytest contains test helpers for marking a test as flaky. For
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// tests run using cmd/testwrapper, a failed flaky test will cause tests to be
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// re-run a few time until they succeed or exceed our iteration limit.
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package flakytest
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import (
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"os"
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"regexp"
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"testing"
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)
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// InTestWrapper returns whether or not this binary is running under our test
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// wrapper.
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func InTestWrapper() bool {
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return os.Getenv("TS_IN_TESTWRAPPER") != ""
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}
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var issueRegexp = regexp.MustCompile(`\Ahttps://github\.com/tailscale/[a-zA-Z0-9_.-]+/issues/\d+\z`)
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// Mark sets the current test as a flaky test, such that if it fails, it will
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// be retried a few times on failure. issue must be a GitHub issue that tracks
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// the status of the flaky test being marked, of the format:
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//
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// https://github.com/tailscale/myRepo-H3re/issues/12345
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func Mark(t *testing.T, issue string) {
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if !issueRegexp.MatchString(issue) {
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t.Fatalf("bad issue format: %q", issue)
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}
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if !InTestWrapper() {
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return
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}
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t.Cleanup(func() {
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if t.Failed() {
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t.Logf("flakytest: signaling test wrapper to retry test")
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// Signal to test wrapper that we should restart.
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os.Exit(123)
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}
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})
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}
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