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moby--moby/integration-cli/docker_cli_diff_test.go
Sebastiaan van Stijn 18a771a761
Remove deprecated environment.DaemonPlatform()
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2018-01-15 15:32:06 +01:00

98 lines
3 KiB
Go

package main
import (
"strings"
"time"
"github.com/docker/docker/integration-cli/checker"
"github.com/docker/docker/integration-cli/cli"
"github.com/go-check/check"
)
// ensure that an added file shows up in docker diff
func (s *DockerSuite) TestDiffFilenameShownInOutput(c *check.C) {
containerCmd := `mkdir /foo; echo xyzzy > /foo/bar`
out := cli.DockerCmd(c, "run", "-d", "busybox", "sh", "-c", containerCmd).Combined()
// Wait for it to exit as cannot diff a running container on Windows, and
// it will take a few seconds to exit. Also there's no way in Windows to
// differentiate between an Add or a Modify, and all files are under
// a "Files/" prefix.
containerID := strings.TrimSpace(out)
lookingFor := "A /foo/bar"
if testEnv.OSType == "windows" {
cli.WaitExited(c, containerID, 60*time.Second)
lookingFor = "C Files/foo/bar"
}
cleanCID := strings.TrimSpace(out)
out = cli.DockerCmd(c, "diff", cleanCID).Combined()
found := false
for _, line := range strings.Split(out, "\n") {
if strings.Contains(line, lookingFor) {
found = true
break
}
}
c.Assert(found, checker.True)
}
// test to ensure GH #3840 doesn't occur any more
func (s *DockerSuite) TestDiffEnsureInitLayerFilesAreIgnored(c *check.C) {
testRequires(c, DaemonIsLinux)
// this is a list of files which shouldn't show up in `docker diff`
initLayerFiles := []string{"/etc/resolv.conf", "/etc/hostname", "/etc/hosts", "/.dockerenv"}
containerCount := 5
// we might not run into this problem from the first run, so start a few containers
for i := 0; i < containerCount; i++ {
containerCmd := `echo foo > /root/bar`
out, _ := dockerCmd(c, "run", "-d", "busybox", "sh", "-c", containerCmd)
cleanCID := strings.TrimSpace(out)
out, _ = dockerCmd(c, "diff", cleanCID)
for _, filename := range initLayerFiles {
c.Assert(out, checker.Not(checker.Contains), filename)
}
}
}
func (s *DockerSuite) TestDiffEnsureDefaultDevs(c *check.C) {
testRequires(c, DaemonIsLinux)
out, _ := dockerCmd(c, "run", "-d", "busybox", "sleep", "0")
cleanCID := strings.TrimSpace(out)
out, _ = dockerCmd(c, "diff", cleanCID)
expected := map[string]bool{
"C /dev": true,
"A /dev/full": true, // busybox
"C /dev/ptmx": true, // libcontainer
"A /dev/mqueue": true,
"A /dev/kmsg": true,
"A /dev/fd": true,
"A /dev/ptmx": true,
"A /dev/null": true,
"A /dev/random": true,
"A /dev/stdout": true,
"A /dev/stderr": true,
"A /dev/tty1": true,
"A /dev/stdin": true,
"A /dev/tty": true,
"A /dev/urandom": true,
"A /dev/zero": true,
}
for _, line := range strings.Split(out, "\n") {
c.Assert(line == "" || expected[line], checker.True, check.Commentf(line))
}
}
// https://github.com/docker/docker/pull/14381#discussion_r33859347
func (s *DockerSuite) TestDiffEmptyArgClientError(c *check.C) {
out, _, err := dockerCmdWithError("diff", "")
c.Assert(err, checker.NotNil)
c.Assert(strings.TrimSpace(out), checker.Contains, "Container name cannot be empty")
}