DockerCLI/cli/command/container/attach_test.go

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package container
import (
"io/ioutil"
"testing"
"github.com/docker/cli/cli"
"github.com/docker/cli/internal/test"
"github.com/docker/cli/internal/test/testutil"
"github.com/docker/docker/api/types"
"github.com/pkg/errors"
"github.com/stretchr/testify/assert"
"golang.org/x/net/context"
)
func TestNewAttachCommandErrors(t *testing.T) {
testCases := []struct {
name string
args []string
expectedError string
containerInspectFunc func(img string) (types.ContainerJSON, error)
}{
{
name: "client-error",
args: []string{"5cb5bb5e4a3b"},
expectedError: "something went wrong",
containerInspectFunc: func(containerID string) (types.ContainerJSON, error) {
return types.ContainerJSON{}, errors.Errorf("something went wrong")
},
},
{
name: "client-stopped",
args: []string{"5cb5bb5e4a3b"},
expectedError: "You cannot attach to a stopped container",
containerInspectFunc: func(containerID string) (types.ContainerJSON, error) {
c := types.ContainerJSON{}
c.ContainerJSONBase = &types.ContainerJSONBase{}
c.ContainerJSONBase.State = &types.ContainerState{Running: false}
return c, nil
},
},
{
name: "client-paused",
args: []string{"5cb5bb5e4a3b"},
expectedError: "You cannot attach to a paused container",
containerInspectFunc: func(containerID string) (types.ContainerJSON, error) {
c := types.ContainerJSON{}
c.ContainerJSONBase = &types.ContainerJSONBase{}
c.ContainerJSONBase.State = &types.ContainerState{
Running: true,
Paused: true,
}
return c, nil
},
},
{
name: "client-restarting",
args: []string{"5cb5bb5e4a3b"},
expectedError: "You cannot attach to a restarting container",
containerInspectFunc: func(containerID string) (types.ContainerJSON, error) {
c := types.ContainerJSON{}
c.ContainerJSONBase = &types.ContainerJSONBase{}
c.ContainerJSONBase.State = &types.ContainerState{
Running: true,
Paused: false,
Restarting: true,
}
return c, nil
},
},
}
for _, tc := range testCases {
cmd := NewAttachCommand(test.NewFakeCli(&fakeClient{inspectFunc: tc.containerInspectFunc}))
cmd.SetOutput(ioutil.Discard)
cmd.SetArgs(tc.args)
testutil.ErrorContains(t, cmd.Execute(), tc.expectedError)
}
}
func TestGetExitStatus(t *testing.T) {
containerID := "the exec id"
expecatedErr := errors.New("unexpected error")
testcases := []struct {
inspectError error
exitCode int
expectedError error
}{
{
inspectError: nil,
exitCode: 0,
},
{
inspectError: expecatedErr,
expectedError: expecatedErr,
},
{
exitCode: 15,
expectedError: cli.StatusError{StatusCode: 15},
},
}
for _, testcase := range testcases {
client := &fakeClient{
inspectFunc: func(id string) (types.ContainerJSON, error) {
assert.Equal(t, containerID, id)
return types.ContainerJSON{
ContainerJSONBase: &types.ContainerJSONBase{
State: &types.ContainerState{ExitCode: testcase.exitCode},
},
}, testcase.inspectError
},
}
err := getExitStatus(context.Background(), client, containerID)
assert.Equal(t, testcase.expectedError, err)
}
}