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moby--moby/cli/command/image/history_test.go

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package image
import (
"bytes"
"fmt"
"io/ioutil"
"regexp"
"testing"
"time"
"github.com/docker/docker/api/types/image"
"github.com/docker/docker/cli/internal/test"
"github.com/docker/docker/pkg/testutil"
"github.com/docker/docker/pkg/testutil/golden"
"github.com/pkg/errors"
"github.com/stretchr/testify/assert"
)
func TestNewHistoryCommandErrors(t *testing.T) {
testCases := []struct {
name string
args []string
expectedError string
imageHistoryFunc func(img string) ([]image.HistoryResponseItem, error)
}{
{
name: "wrong-args",
args: []string{},
expectedError: "requires exactly 1 argument(s).",
},
{
name: "client-error",
args: []string{"image:tag"},
expectedError: "something went wrong",
imageHistoryFunc: func(img string) ([]image.HistoryResponseItem, error) {
return []image.HistoryResponseItem{{}}, errors.Errorf("something went wrong")
},
},
}
for _, tc := range testCases {
buf := new(bytes.Buffer)
cmd := NewHistoryCommand(test.NewFakeCli(&fakeClient{imageHistoryFunc: tc.imageHistoryFunc}, buf))
cmd.SetOutput(ioutil.Discard)
cmd.SetArgs(tc.args)
testutil.ErrorContains(t, cmd.Execute(), tc.expectedError)
}
}
func TestNewHistoryCommandSuccess(t *testing.T) {
testCases := []struct {
name string
args []string
outputRegex string
imageHistoryFunc func(img string) ([]image.HistoryResponseItem, error)
}{
{
name: "simple",
args: []string{"image:tag"},
imageHistoryFunc: func(img string) ([]image.HistoryResponseItem, error) {
return []image.HistoryResponseItem{{
ID: "1234567890123456789",
Created: time.Now().Unix(),
}}, nil
},
},
{
name: "quiet",
args: []string{"--quiet", "image:tag"},
},
// TODO: This test is failing since the output does not contain an RFC3339 date
//{
// name: "non-human",
// args: []string{"--human=false", "image:tag"},
// outputRegex: "\\d{4}-\\d{2}-\\d{2}T\\d{2}:\\d{2}:\\d{2}", // RFC3339 date format match
//},
{
name: "non-human-header",
args: []string{"--human=false", "image:tag"},
outputRegex: "CREATED\\sAT",
},
{
name: "quiet-no-trunc",
args: []string{"--quiet", "--no-trunc", "image:tag"},
imageHistoryFunc: func(img string) ([]image.HistoryResponseItem, error) {
return []image.HistoryResponseItem{{
ID: "1234567890123456789",
Created: time.Now().Unix(),
}}, nil
},
},
}
for _, tc := range testCases {
buf := new(bytes.Buffer)
cmd := NewHistoryCommand(test.NewFakeCli(&fakeClient{imageHistoryFunc: tc.imageHistoryFunc}, buf))
cmd.SetOutput(ioutil.Discard)
cmd.SetArgs(tc.args)
err := cmd.Execute()
assert.NoError(t, err)
actual := buf.String()
if tc.outputRegex == "" {
expected := string(golden.Get(t, []byte(actual), fmt.Sprintf("history-command-success.%s.golden", tc.name))[:])
testutil.EqualNormalizedString(t, testutil.RemoveSpace, actual, expected)
} else {
match, _ := regexp.MatchString(tc.outputRegex, actual)
assert.Equal(t, match, true)
}
}
}