398 lines
7.5 KiB
Go
398 lines
7.5 KiB
Go
package docker
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import (
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"fmt"
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"io"
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"io/ioutil"
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"testing"
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"time"
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)
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func TestStart(t *testing.T) {
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docker, err := newTestDocker()
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if err != nil {
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t.Fatal(err)
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}
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container, err := docker.Create(
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"start_test",
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"ls",
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[]string{"-al"},
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[]string{"/var/lib/docker/images/ubuntu"},
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&Config{
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Ram: 33554432,
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},
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)
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if err != nil {
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t.Fatal(err)
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}
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defer docker.Destroy(container)
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if container.State.Running {
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t.Errorf("Container shouldn't be running")
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}
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if err := container.Start(); err != nil {
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t.Fatal(err)
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}
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container.Wait()
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if container.State.Running {
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t.Errorf("Container shouldn't be running")
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}
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// We should be able to call Wait again
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container.Wait()
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if container.State.Running {
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t.Errorf("Container shouldn't be running")
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}
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}
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func TestRun(t *testing.T) {
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docker, err := newTestDocker()
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if err != nil {
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t.Fatal(err)
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}
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container, err := docker.Create(
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"run_test",
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"ls",
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[]string{"-al"},
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[]string{"/var/lib/docker/images/ubuntu"},
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&Config{
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Ram: 33554432,
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},
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)
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if err != nil {
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t.Fatal(err)
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}
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defer docker.Destroy(container)
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if container.State.Running {
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t.Errorf("Container shouldn't be running")
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}
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if err := container.Run(); err != nil {
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t.Fatal(err)
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}
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if container.State.Running {
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t.Errorf("Container shouldn't be running")
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}
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}
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func TestOutput(t *testing.T) {
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docker, err := newTestDocker()
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if err != nil {
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t.Fatal(err)
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}
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container, err := docker.Create(
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"output_test",
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"echo",
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[]string{"-n", "foobar"},
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[]string{"/var/lib/docker/images/ubuntu"},
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&Config{},
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)
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if err != nil {
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t.Fatal(err)
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}
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defer docker.Destroy(container)
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output, err := container.Output()
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if err != nil {
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t.Fatal(err)
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}
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if string(output) != "foobar" {
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t.Error(string(output))
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}
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}
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func TestKill(t *testing.T) {
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docker, err := newTestDocker()
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if err != nil {
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t.Fatal(err)
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}
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container, err := docker.Create(
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"stop_test",
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"cat",
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[]string{"/dev/zero"},
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[]string{"/var/lib/docker/images/ubuntu"},
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&Config{},
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)
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if err != nil {
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t.Fatal(err)
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}
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defer docker.Destroy(container)
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if container.State.Running {
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t.Errorf("Container shouldn't be running")
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}
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if err := container.Start(); err != nil {
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t.Fatal(err)
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}
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if !container.State.Running {
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t.Errorf("Container should be running")
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}
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if err := container.Kill(); err != nil {
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t.Fatal(err)
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}
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if container.State.Running {
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t.Errorf("Container shouldn't be running")
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}
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container.Wait()
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if container.State.Running {
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t.Errorf("Container shouldn't be running")
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}
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// Try stopping twice
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if err := container.Kill(); err != nil {
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t.Fatal(err)
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}
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}
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func TestExitCode(t *testing.T) {
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docker, err := newTestDocker()
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if err != nil {
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t.Fatal(err)
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}
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trueContainer, err := docker.Create(
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"exit_test_1",
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"/bin/true",
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[]string{""},
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[]string{"/var/lib/docker/images/ubuntu"},
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&Config{},
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)
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if err != nil {
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t.Fatal(err)
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}
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defer docker.Destroy(trueContainer)
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if err := trueContainer.Run(); err != nil {
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t.Fatal(err)
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}
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falseContainer, err := docker.Create(
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"exit_test_2",
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"/bin/false",
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[]string{""},
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[]string{"/var/lib/docker/images/ubuntu"},
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&Config{},
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)
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if err != nil {
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t.Fatal(err)
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}
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defer docker.Destroy(falseContainer)
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if err := falseContainer.Run(); err != nil {
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t.Fatal(err)
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}
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if trueContainer.State.ExitCode != 0 {
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t.Errorf("Unexpected exit code %v", trueContainer.State.ExitCode)
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}
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if falseContainer.State.ExitCode != 1 {
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t.Errorf("Unexpected exit code %v", falseContainer.State.ExitCode)
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}
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}
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func TestMultipleContainers(t *testing.T) {
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docker, err := newTestDocker()
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if err != nil {
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t.Fatal(err)
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}
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container1, err := docker.Create(
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"container1",
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"cat",
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[]string{"/dev/zero"},
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[]string{"/var/lib/docker/images/ubuntu"},
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&Config{},
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)
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if err != nil {
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t.Fatal(err)
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}
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defer docker.Destroy(container1)
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container2, err := docker.Create(
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"container2",
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"cat",
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[]string{"/dev/zero"},
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[]string{"/var/lib/docker/images/ubuntu"},
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&Config{},
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)
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if err != nil {
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t.Fatal(err)
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}
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defer docker.Destroy(container2)
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// Start both containers
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if err := container1.Start(); err != nil {
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t.Fatal(err)
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}
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if err := container2.Start(); err != nil {
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t.Fatal(err)
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}
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// If we are here, both containers should be running
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if !container1.State.Running {
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t.Fatal("Container not running")
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}
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if !container2.State.Running {
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t.Fatal("Container not running")
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}
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// Kill them
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if err := container1.Kill(); err != nil {
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t.Fatal(err)
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}
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if err := container2.Kill(); err != nil {
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t.Fatal(err)
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}
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}
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func TestStdin(t *testing.T) {
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docker, err := newTestDocker()
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if err != nil {
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t.Fatal(err)
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}
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container, err := docker.Create(
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"stdin_test",
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"cat",
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[]string{},
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[]string{"/var/lib/docker/images/ubuntu"},
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&Config{
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OpenStdin: true,
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},
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)
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if err != nil {
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t.Fatal(err)
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}
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defer docker.Destroy(container)
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stdin, err := container.StdinPipe()
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stdout, err := container.StdoutPipe()
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defer stdin.Close()
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defer stdout.Close()
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if err := container.Start(); err != nil {
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t.Fatal(err)
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}
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io.WriteString(stdin, "hello world")
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stdin.Close()
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container.Wait()
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output, err := ioutil.ReadAll(stdout)
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if string(output) != "hello world" {
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t.Fatal(string(output))
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}
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}
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func TestTty(t *testing.T) {
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docker, err := newTestDocker()
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if err != nil {
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t.Fatal(err)
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}
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container, err := docker.Create(
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"tty_test",
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"cat",
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[]string{},
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[]string{"/var/lib/docker/images/ubuntu"},
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&Config{
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OpenStdin: true,
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},
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)
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if err != nil {
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t.Fatal(err)
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}
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defer docker.Destroy(container)
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stdin, err := container.StdinPipe()
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stdout, err := container.StdoutPipe()
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defer stdin.Close()
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defer stdout.Close()
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if err := container.Start(); err != nil {
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t.Fatal(err)
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}
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io.WriteString(stdin, "hello world")
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stdin.Close()
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container.Wait()
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output, err := ioutil.ReadAll(stdout)
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if string(output) != "hello world" {
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t.Fatal(string(output))
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}
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}
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func BenchmarkRunSequencial(b *testing.B) {
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docker, err := newTestDocker()
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if err != nil {
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b.Fatal(err)
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}
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for i := 0; i < b.N; i++ {
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container, err := docker.Create(
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fmt.Sprintf("bench_%v", i),
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"echo",
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[]string{"-n", "foo"},
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[]string{"/var/lib/docker/images/ubuntu"},
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&Config{},
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)
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if err != nil {
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b.Fatal(err)
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}
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defer docker.Destroy(container)
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output, err := container.Output()
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if err != nil {
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b.Fatal(err)
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}
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if string(output) != "foo" {
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b.Fatalf("Unexecpted output: %v", string(output))
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}
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if err := docker.Destroy(container); err != nil {
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b.Fatal(err)
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}
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}
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}
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func BenchmarkRunParallel(b *testing.B) {
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docker, err := newTestDocker()
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if err != nil {
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b.Fatal(err)
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}
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var tasks []chan error
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for i := 0; i < b.N; i++ {
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complete := make(chan error)
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tasks = append(tasks, complete)
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go func(i int, complete chan error) {
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container, err := docker.Create(
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fmt.Sprintf("bench_%v", i),
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"echo",
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[]string{"-n", "foo"},
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[]string{"/var/lib/docker/images/ubuntu"},
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&Config{},
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)
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if err != nil {
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complete <- err
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return
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}
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defer docker.Destroy(container)
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if err := container.Start(); err != nil {
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complete <- err
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return
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}
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if err := container.WaitTimeout(15 * time.Second); err != nil {
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complete <- err
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return
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}
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// if string(output) != "foo" {
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// complete <- fmt.Errorf("Unexecpted output: %v", string(output))
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// }
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if err := docker.Destroy(container); err != nil {
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complete <- err
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return
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}
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complete <- nil
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}(i, complete)
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}
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var errors []error
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for _, task := range tasks {
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err := <-task
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if err != nil {
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errors = append(errors, err)
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}
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}
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if len(errors) > 0 {
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b.Fatal(errors)
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}
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}
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