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34 lines
716 B
Go
34 lines
716 B
Go
// Copyright (c) Tailscale Inc & AUTHORS
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// SPDX-License-Identifier: BSD-3-Clause
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package tailscaleroot
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import (
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"fmt"
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"os"
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"regexp"
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"strings"
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"testing"
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)
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func TestDockerfileVersion(t *testing.T) {
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goMod, err := os.ReadFile("go.mod")
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if err != nil {
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t.Fatal(err)
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}
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m := regexp.MustCompile(`(?m)^go (\d\.\d+)\r?($|\.)`).FindStringSubmatch(string(goMod))
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if m == nil {
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t.Fatalf("didn't find go version in go.mod")
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}
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goVersion := m[1]
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dockerFile, err := os.ReadFile("Dockerfile")
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if err != nil {
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t.Fatal(err)
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}
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wantSub := fmt.Sprintf("FROM golang:%s-alpine AS build-env", goVersion)
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if !strings.Contains(string(dockerFile), wantSub) {
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t.Errorf("didn't find %q in Dockerfile", wantSub)
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}
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}
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