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package main
import (
"strings"
"testing"
"gotest.tools/v3/assert"
"gotest.tools/v3/icmd"
)
type DockerCLITopSuite struct {
ds *DockerSuite
}
func (s *DockerCLITopSuite) TearDownTest(c *testing.T) {
s.ds.TearDownTest(c)
}
func (s *DockerCLITopSuite) OnTimeout(c *testing.T) {
s.ds.OnTimeout(c)
}
func (s *DockerCLITopSuite) TestTopMultipleArgs(c *testing.T) {
out := runSleepingContainer(c, "-d")
cleanedContainerID := strings.TrimSpace(out)
var expected icmd.Expected
switch testEnv.OSType {
case "windows":
expected = icmd.Expected{ExitCode: 1, Err: "Windows does not support arguments to top"}
default:
expected = icmd.Expected{Out: "PID"}
}
result := dockerCmdWithResult("top", cleanedContainerID, "-o", "pid")
result.Assert(c, expected)
}
func (s *DockerCLITopSuite) TestTopNonPrivileged(c *testing.T) {
out := runSleepingContainer(c, "-d")
cleanedContainerID := strings.TrimSpace(out)
out1, _ := dockerCmd(c, "top", cleanedContainerID)
out2, _ := dockerCmd(c, "top", cleanedContainerID)
dockerCmd(c, "kill", cleanedContainerID)
// Windows will list the name of the launched executable which in this case is busybox.exe, without the parameters.
// Linux will display the command executed in the container
var lookingFor string
if testEnv.OSType == "windows" {
lookingFor = "busybox.exe"
} else {
lookingFor = "top"
}
assert.Assert(c, strings.Contains(out1, lookingFor), "top should've listed `%s` in the process list, but failed the first time", lookingFor)
assert.Assert(c, strings.Contains(out2, lookingFor), "top should've listed `%s` in the process list, but failed the second time", lookingFor)
}
// TestTopWindowsCoreProcesses validates that there are lines for the critical
// processes which are found in a Windows container. Note Windows is architecturally
// very different to Linux in this regard.
func (s *DockerCLITopSuite) TestTopWindowsCoreProcesses(c *testing.T) {
testRequires(c, DaemonIsWindows)
out := runSleepingContainer(c, "-d")
cleanedContainerID := strings.TrimSpace(out)
out1, _ := dockerCmd(c, "top", cleanedContainerID)
lookingFor := []string{"smss.exe", "csrss.exe", "wininit.exe", "services.exe", "lsass.exe", "CExecSvc.exe"}
for i, s := range lookingFor {
assert.Assert(c, strings.Contains(out1, s), "top should've listed `%s` in the process list, but failed. Test case %d", s, i)
}
}
func (s *DockerCLITopSuite) TestTopPrivileged(c *testing.T) {
// Windows does not support --privileged
testRequires(c, DaemonIsLinux, NotUserNamespace)
out, _ := dockerCmd(c, "run", "--privileged", "-i", "-d", "busybox", "top")
cleanedContainerID := strings.TrimSpace(out)
out1, _ := dockerCmd(c, "top", cleanedContainerID)
out2, _ := dockerCmd(c, "top", cleanedContainerID)
dockerCmd(c, "kill", cleanedContainerID)
assert.Assert(c, strings.Contains(out1, "top"), "top should've listed `top` in the process list, but failed the first time")
assert.Assert(c, strings.Contains(out2, "top"), "top should've listed `top` in the process list, but failed the second time")
}
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