mirror of
https://github.com/moby/moby.git
synced 2022-11-09 12:21:53 -05:00
67 lines
2 KiB
Go
67 lines
2 KiB
Go
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package main
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import (
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"fmt"
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"os/exec"
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"strings"
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"testing"
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)
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// ensure that an added file shows up in docker diff
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func TestDiffFilenameShownInOutput(t *testing.T) {
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containerCmd := `echo foo > /root/bar`
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runCmd := exec.Command(dockerBinary, "run", "-d", "busybox", "sh", "-c", containerCmd)
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cid, _, err := runCommandWithOutput(runCmd)
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errorOut(err, t, fmt.Sprintf("failed to start the container: %v", err))
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cleanCID := stripTrailingCharacters(cid)
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diffCmd := exec.Command(dockerBinary, "diff", cleanCID)
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out, _, err := runCommandWithOutput(diffCmd)
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errorOut(err, t, fmt.Sprintf("failed to run diff: %v %v", out, err))
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found := false
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for _, line := range strings.Split(out, "\n") {
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if strings.Contains("A /root/bar", line) {
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found = true
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break
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}
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}
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if !found {
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t.Errorf("couldn't find the new file in docker diff's output: %v", out)
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}
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go deleteContainer(cleanCID)
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logDone("diff - check if created file shows up")
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}
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// test to ensure GH #3840 doesn't occur any more
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func TestDiffEnsureDockerinitFilesAreIgnored(t *testing.T) {
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// this is a list of files which shouldn't show up in `docker diff`
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dockerinitFiles := []string{"/etc/resolv.conf", "/etc/hostname", "/etc/hosts", "/.dockerinit", "/.dockerenv"}
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// we might not run into this problem from the first run, so start a few containers
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for i := 0; i < 20; i++ {
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containerCmd := `echo foo > /root/bar`
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runCmd := exec.Command(dockerBinary, "run", "-d", "busybox", "sh", "-c", containerCmd)
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cid, _, err := runCommandWithOutput(runCmd)
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errorOut(err, t, fmt.Sprintf("%s", err))
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cleanCID := stripTrailingCharacters(cid)
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diffCmd := exec.Command(dockerBinary, "diff", cleanCID)
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out, _, err := runCommandWithOutput(diffCmd)
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errorOut(err, t, fmt.Sprintf("failed to run diff: %v %v", out, err))
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go deleteContainer(cleanCID)
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for _, filename := range dockerinitFiles {
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if strings.Contains(out, filename) {
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t.Errorf("found file which should've been ignored %v in diff output", filename)
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}
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}
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}
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logDone("diff - check if ignored files show up in diff")
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}
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