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") }