DockerCLI/cli/command/image/load_test.go

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package image
import (
"fmt"
"io"
"io/ioutil"
"strings"
"testing"
"github.com/docker/cli/internal/test"
"github.com/docker/docker/api/types"
"github.com/gotestyourself/gotestyourself/assert"
"github.com/gotestyourself/gotestyourself/golden"
"github.com/pkg/errors"
)
func TestNewLoadCommandErrors(t *testing.T) {
testCases := []struct {
name string
args []string
isTerminalIn bool
expectedError string
imageLoadFunc func(input io.Reader, quiet bool) (types.ImageLoadResponse, error)
}{
{
name: "wrong-args",
args: []string{"arg"},
expectedError: "accepts no arguments.",
},
{
name: "input-to-terminal",
isTerminalIn: true,
expectedError: "requested load from stdin, but stdin is empty",
},
{
name: "pull-error",
expectedError: "something went wrong",
imageLoadFunc: func(input io.Reader, quiet bool) (types.ImageLoadResponse, error) {
return types.ImageLoadResponse{}, errors.Errorf("something went wrong")
},
},
}
for _, tc := range testCases {
cli := test.NewFakeCli(&fakeClient{imageLoadFunc: tc.imageLoadFunc})
cli.In().SetIsTerminal(tc.isTerminalIn)
cmd := NewLoadCommand(cli)
cmd.SetOutput(ioutil.Discard)
cmd.SetArgs(tc.args)
assert.ErrorContains(t, cmd.Execute(), tc.expectedError)
}
}
func TestNewLoadCommandInvalidInput(t *testing.T) {
expectedError := "open *"
cmd := NewLoadCommand(test.NewFakeCli(&fakeClient{}))
cmd.SetOutput(ioutil.Discard)
cmd.SetArgs([]string{"--input", "*"})
err := cmd.Execute()
assert.ErrorContains(t, err, expectedError)
}
func TestNewLoadCommandSuccess(t *testing.T) {
testCases := []struct {
name string
args []string
imageLoadFunc func(input io.Reader, quiet bool) (types.ImageLoadResponse, error)
}{
{
name: "simple",
imageLoadFunc: func(input io.Reader, quiet bool) (types.ImageLoadResponse, error) {
return types.ImageLoadResponse{Body: ioutil.NopCloser(strings.NewReader("Success"))}, nil
},
},
{
name: "json",
imageLoadFunc: func(input io.Reader, quiet bool) (types.ImageLoadResponse, error) {
json := "{\"ID\": \"1\"}"
return types.ImageLoadResponse{
Body: ioutil.NopCloser(strings.NewReader(json)),
JSON: true,
}, nil
},
},
{
name: "input-file",
args: []string{"--input", "testdata/load-command-success.input.txt"},
imageLoadFunc: func(input io.Reader, quiet bool) (types.ImageLoadResponse, error) {
return types.ImageLoadResponse{Body: ioutil.NopCloser(strings.NewReader("Success"))}, nil
},
},
}
for _, tc := range testCases {
cli := test.NewFakeCli(&fakeClient{imageLoadFunc: tc.imageLoadFunc})
cmd := NewLoadCommand(cli)
cmd.SetOutput(ioutil.Discard)
cmd.SetArgs(tc.args)
err := cmd.Execute()
assert.NilError(t, err)
golden.Assert(t, cli.OutBuffer().String(), fmt.Sprintf("load-command-success.%s.golden", tc.name))
}
}