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moby--moby/image/image_test.go
yuexiao-wang b2ec509a3f Fix incorrect info and format of error in image
Signed-off-by: yuexiao-wang <wang.yuexiao@zte.com.cn>
2016-12-20 18:20:15 +08:00

59 lines
1.1 KiB
Go

package image
import (
"encoding/json"
"sort"
"strings"
"testing"
)
const sampleImageJSON = `{
"architecture": "amd64",
"os": "linux",
"config": {},
"rootfs": {
"type": "layers",
"diff_ids": []
}
}`
func TestJSON(t *testing.T) {
img, err := NewFromJSON([]byte(sampleImageJSON))
if err != nil {
t.Fatal(err)
}
rawJSON := img.RawJSON()
if string(rawJSON) != sampleImageJSON {
t.Fatalf("raw JSON of config didn't match: expected %+v, got %v", sampleImageJSON, rawJSON)
}
}
func TestInvalidJSON(t *testing.T) {
_, err := NewFromJSON([]byte("{}"))
if err == nil {
t.Fatal("expected JSON parse error")
}
}
func TestMarshalKeyOrder(t *testing.T) {
b, err := json.Marshal(&Image{
V1Image: V1Image{
Comment: "a",
Author: "b",
Architecture: "c",
},
})
if err != nil {
t.Fatal(err)
}
expectedOrder := []string{"architecture", "author", "comment"}
var indexes []int
for _, k := range expectedOrder {
indexes = append(indexes, strings.Index(string(b), k))
}
if !sort.IntsAreSorted(indexes) {
t.Fatal("invalid key order in JSON: ", string(b))
}
}