package docker

import (

"errors"

"github.com/mitchellh/multistep"

"testing"

)

func testStepCommitState(t *testing.T) multistep.StateBag {

state := testState(t)

state.Put("container_id", "foo")

return state

}

func TestStepCommit_impl(t *testing.T) {

var _ multistep.Step = new(StepCommit)

}

func TestStepCommit(t *testing.T) {

state := testStepCommitState(t)

step := new(StepCommit)

defer step.Cleanup(state)

driver := state.Get("driver").(*MockDriver)

driver.CommitImageId = "bar"

// run the step

if action := step.Run(state); action != multistep.ActionContinue {

t.Fatalf("bad action: %#v", action)

}

// verify we did the right thing

if !driver.CommitCalled {

t.Fatal("should've called")

}

// verify the ID is saved

idRaw, ok := state.GetOk("image_id")

if !ok {

t.Fatal("should've saved ID")

}

id := idRaw.(string)

if id != driver.CommitImageId {

t.Fatalf("bad: %#v", id)

}

}

func TestStepCommit_error(t *testing.T) {

state := testStepCommitState(t)

step := new(StepCommit)

defer step.Cleanup(state)

driver := state.Get("driver").(*MockDriver)

driver.CommitErr = errors.New("foo")

// run the step

if action := step.Run(state); action != multistep.ActionHalt {

t.Fatalf("bad action: %#v", action)

}

// verify the ID is not saved

if _, ok := state.GetOk("image_id"); ok {

t.Fatal("shouldn't save image ID")

}

}