DockerCLI/internal/pkg/containerized/proxy_test.go

69 lines
1.6 KiB
Go

package containerized
import (
"encoding/json"
"io/ioutil"
"os"
"path/filepath"
"testing"
"gotest.tools/assert"
)
func TestUpdateConfigNotExist(t *testing.T) {
tmpdir, err := ioutil.TempDir("", "cfg-update")
assert.NilError(t, err)
defer os.RemoveAll(tmpdir)
origProxyDir := proxydir
defer func() {
proxydir = origProxyDir
}()
proxydir = tmpdir
name := "myname"
newImage := "newimage:foo"
err = updateConfig(name, newImage)
assert.NilError(t, err)
}
func TestUpdateConfigBadJson(t *testing.T) {
tmpdir, err := ioutil.TempDir("", "cfg-update")
assert.NilError(t, err)
defer os.RemoveAll(tmpdir)
origProxyDir := proxydir
defer func() {
proxydir = origProxyDir
}()
proxydir = tmpdir
filename := filepath.Join(tmpdir, "dockerd.json")
err = ioutil.WriteFile(filename, []byte("not json"), 0644)
assert.NilError(t, err)
name := "dockerd"
newImage := "newimage:foo"
err = updateConfig(name, newImage)
assert.ErrorContains(t, err, "invalid character")
}
func TestUpdateConfigHappyPath(t *testing.T) {
tmpdir, err := ioutil.TempDir("", "cfg-update")
assert.NilError(t, err)
defer os.RemoveAll(tmpdir)
origProxyDir := proxydir
defer func() {
proxydir = origProxyDir
}()
proxydir = tmpdir
filename := filepath.Join(tmpdir, "dockerd.json")
err = ioutil.WriteFile(filename, []byte("{}"), 0644)
assert.NilError(t, err)
name := "dockerd"
newImage := "newimage:foo"
err = updateConfig(name, newImage)
assert.NilError(t, err)
data, err := ioutil.ReadFile(filename)
assert.NilError(t, err)
var cfg map[string]string
err = json.Unmarshal(data, &cfg)
assert.NilError(t, err)
assert.Assert(t, cfg["image"] == newImage)
}