DockerCLI/cli/command/container/diff_test.go

94 lines
1.9 KiB
Go

package container
import (
"context"
"io"
"strings"
"testing"
"github.com/docker/cli/internal/test"
"github.com/docker/docker/api/types/container"
"github.com/pkg/errors"
"gotest.tools/v3/assert"
is "gotest.tools/v3/assert/cmp"
)
func TestRunDiff(t *testing.T) {
cli := test.NewFakeCli(&fakeClient{
containerDiffFunc: func(
ctx context.Context,
containerID string,
) ([]container.FilesystemChange, error) {
return []container.FilesystemChange{
{
Kind: container.ChangeModify,
Path: "/path/to/file0",
},
{
Kind: container.ChangeAdd,
Path: "/path/to/file1",
},
{
Kind: container.ChangeDelete,
Path: "/path/to/file2",
},
}, nil
},
})
cmd := NewDiffCommand(cli)
cmd.SetOut(io.Discard)
cmd.SetArgs([]string{"container-id"})
err := cmd.Execute()
assert.NilError(t, err)
diff := strings.SplitN(cli.OutBuffer().String(), "\n", 3)
assert.Assert(t, is.Len(diff, 3))
file0 := strings.TrimSpace(diff[0])
file1 := strings.TrimSpace(diff[1])
file2 := strings.TrimSpace(diff[2])
assert.Check(t, is.Equal(file0, "C /path/to/file0"))
assert.Check(t, is.Equal(file1, "A /path/to/file1"))
assert.Check(t, is.Equal(file2, "D /path/to/file2"))
}
func TestRunDiffClientError(t *testing.T) {
clientError := errors.New("client error")
cli := test.NewFakeCli(&fakeClient{
containerDiffFunc: func(
ctx context.Context,
containerID string,
) ([]container.FilesystemChange, error) {
return nil, clientError
},
})
cmd := NewDiffCommand(cli)
cmd.SetOut(io.Discard)
cmd.SetErr(io.Discard)
cmd.SetArgs([]string{"container-id"})
err := cmd.Execute()
assert.ErrorIs(t, err, clientError)
}
func TestRunDiffEmptyContainerError(t *testing.T) {
cli := test.NewFakeCli(&fakeClient{})
cmd := NewDiffCommand(cli)
cmd.SetOut(io.Discard)
cmd.SetErr(io.Discard)
containerID := ""
cmd.SetArgs([]string{containerID})
err := cmd.Execute()
assert.Error(t, err, "Container name cannot be empty")
}