github.com/docker/docker@v299999999.0.0-20200612211812-aaf470eca7b5+incompatible/daemon/delete_test.go (about)

     1  package daemon // import "github.com/docker/docker/daemon"
     2  
     3  import (
     4  	"fmt"
     5  	"io/ioutil"
     6  	"os"
     7  	"testing"
     8  
     9  	"github.com/docker/docker/api/types"
    10  	containertypes "github.com/docker/docker/api/types/container"
    11  	"github.com/docker/docker/container"
    12  	"gotest.tools/v3/assert"
    13  	is "gotest.tools/v3/assert/cmp"
    14  )
    15  
    16  func newDaemonWithTmpRoot(t *testing.T) (*Daemon, func()) {
    17  	tmp, err := ioutil.TempDir("", "docker-daemon-unix-test-")
    18  	assert.NilError(t, err)
    19  	d := &Daemon{
    20  		repository: tmp,
    21  		root:       tmp,
    22  	}
    23  	d.containers = container.NewMemoryStore()
    24  	return d, func() { os.RemoveAll(tmp) }
    25  }
    26  
    27  func newContainerWithState(state *container.State) *container.Container {
    28  	return &container.Container{
    29  		ID:     "test",
    30  		State:  state,
    31  		Config: &containertypes.Config{},
    32  	}
    33  }
    34  
    35  // TestContainerDelete tests that a useful error message and instructions is
    36  // given when attempting to remove a container (#30842)
    37  func TestContainerDelete(t *testing.T) {
    38  	tt := []struct {
    39  		errMsg        string
    40  		fixMsg        string
    41  		initContainer func() *container.Container
    42  	}{
    43  		// a paused container
    44  		{
    45  			errMsg: "cannot remove a paused container",
    46  			fixMsg: "Unpause and then stop the container before attempting removal or force remove",
    47  			initContainer: func() *container.Container {
    48  				return newContainerWithState(&container.State{Paused: true, Running: true})
    49  			}},
    50  		// a restarting container
    51  		{
    52  			errMsg: "cannot remove a restarting container",
    53  			fixMsg: "Stop the container before attempting removal or force remove",
    54  			initContainer: func() *container.Container {
    55  				c := newContainerWithState(container.NewState())
    56  				c.SetRunning(0, true)
    57  				c.SetRestarting(&container.ExitStatus{})
    58  				return c
    59  			}},
    60  		// a running container
    61  		{
    62  			errMsg: "cannot remove a running container",
    63  			fixMsg: "Stop the container before attempting removal or force remove",
    64  			initContainer: func() *container.Container {
    65  				return newContainerWithState(&container.State{Running: true})
    66  			}},
    67  	}
    68  
    69  	for _, te := range tt {
    70  		c := te.initContainer()
    71  		d, cleanup := newDaemonWithTmpRoot(t)
    72  		defer cleanup()
    73  		d.containers.Add(c.ID, c)
    74  
    75  		err := d.ContainerRm(c.ID, &types.ContainerRmConfig{ForceRemove: false})
    76  		assert.Check(t, is.ErrorContains(err, te.errMsg))
    77  		assert.Check(t, is.ErrorContains(err, te.fixMsg))
    78  	}
    79  }
    80  
    81  func TestContainerDoubleDelete(t *testing.T) {
    82  	c := newContainerWithState(container.NewState())
    83  
    84  	// Mark the container as having a delete in progress
    85  	c.SetRemovalInProgress()
    86  
    87  	d, cleanup := newDaemonWithTmpRoot(t)
    88  	defer cleanup()
    89  	d.containers.Add(c.ID, c)
    90  
    91  	// Try to remove the container when its state is removalInProgress.
    92  	// It should return an error indicating it is under removal progress.
    93  	err := d.ContainerRm(c.ID, &types.ContainerRmConfig{ForceRemove: true})
    94  	assert.Check(t, is.ErrorContains(err, fmt.Sprintf("removal of container %s is already in progress", c.ID)))
    95  }