gopkg.in/docker/docker.v20@v20.10.27/daemon/delete_test.go (about)

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