97 lines
3.2 KiB
Go
97 lines
3.2 KiB
Go
package main
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import (
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"bytes"
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"os/exec"
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"strings"
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"time"
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"github.com/docker/docker/pkg/integration/checker"
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"github.com/go-check/check"
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)
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// non-blocking wait with 0 exit code
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func (s *DockerSuite) TestWaitNonBlockedExitZero(c *check.C) {
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out, _ := dockerCmd(c, "run", "-d", "busybox", "sh", "-c", "true")
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containerID := strings.TrimSpace(out)
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err := waitInspect(containerID, "{{.State.Running}}", "false", 30*time.Second)
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c.Assert(err, checker.IsNil) //Container should have stopped by now
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out, _ = dockerCmd(c, "wait", containerID)
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c.Assert(strings.TrimSpace(out), checker.Equals, "0", check.Commentf("failed to set up container, %v", out))
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}
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// blocking wait with 0 exit code
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func (s *DockerSuite) TestWaitBlockedExitZero(c *check.C) {
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// Windows busybox does not support trap in this way, not sleep with sub-second
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// granularity. It will always exit 0x40010004.
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testRequires(c, DaemonIsLinux)
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out, _ := dockerCmd(c, "run", "-d", "busybox", "/bin/sh", "-c", "trap 'exit 0' TERM; while true; do usleep 10; done")
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containerID := strings.TrimSpace(out)
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c.Assert(waitRun(containerID), checker.IsNil)
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chWait := make(chan string)
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go func() {
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chWait <- ""
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out, _, _ := runCommandWithOutput(exec.Command(dockerBinary, "wait", containerID))
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chWait <- out
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}()
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<-chWait // make sure the goroutine is started
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time.Sleep(100 * time.Millisecond)
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dockerCmd(c, "stop", containerID)
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select {
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case status := <-chWait:
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c.Assert(strings.TrimSpace(status), checker.Equals, "0", check.Commentf("expected exit 0, got %s", status))
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case <-time.After(2 * time.Second):
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c.Fatal("timeout waiting for `docker wait` to exit")
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}
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}
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// non-blocking wait with random exit code
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func (s *DockerSuite) TestWaitNonBlockedExitRandom(c *check.C) {
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out, _ := dockerCmd(c, "run", "-d", "busybox", "sh", "-c", "exit 99")
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containerID := strings.TrimSpace(out)
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err := waitInspect(containerID, "{{.State.Running}}", "false", 30*time.Second)
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c.Assert(err, checker.IsNil) //Container should have stopped by now
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out, _ = dockerCmd(c, "wait", containerID)
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c.Assert(strings.TrimSpace(out), checker.Equals, "99", check.Commentf("failed to set up container, %v", out))
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}
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// blocking wait with random exit code
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func (s *DockerSuite) TestWaitBlockedExitRandom(c *check.C) {
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// Cannot run on Windows as trap in Windows busybox does not support trap in this way.
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testRequires(c, DaemonIsLinux)
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out, _ := dockerCmd(c, "run", "-d", "busybox", "/bin/sh", "-c", "trap 'exit 99' TERM; while true; do usleep 10; done")
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containerID := strings.TrimSpace(out)
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c.Assert(waitRun(containerID), checker.IsNil)
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chWait := make(chan error)
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waitCmd := exec.Command(dockerBinary, "wait", containerID)
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waitCmdOut := bytes.NewBuffer(nil)
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waitCmd.Stdout = waitCmdOut
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c.Assert(waitCmd.Start(), checker.IsNil)
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go func() {
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chWait <- waitCmd.Wait()
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}()
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dockerCmd(c, "stop", containerID)
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select {
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case err := <-chWait:
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c.Assert(err, checker.IsNil, check.Commentf(waitCmdOut.String()))
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status, err := waitCmdOut.ReadString('\n')
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c.Assert(err, checker.IsNil)
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c.Assert(strings.TrimSpace(status), checker.Equals, "99", check.Commentf("expected exit 99, got %s", status))
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case <-time.After(2 * time.Second):
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waitCmd.Process.Kill()
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c.Fatal("timeout waiting for `docker wait` to exit")
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}
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}
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