52 lines
1 KiB
Go
52 lines
1 KiB
Go
package image
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import (
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"encoding/json"
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"sort"
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"strings"
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"testing"
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"github.com/docker/docker/pkg/testutil/assert"
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)
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const sampleImageJSON = `{
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"architecture": "amd64",
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"os": "linux",
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"config": {},
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"rootfs": {
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"type": "layers",
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"diff_ids": []
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}
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}`
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func TestNewFromJSON(t *testing.T) {
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img, err := NewFromJSON([]byte(sampleImageJSON))
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assert.NilError(t, err)
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assert.Equal(t, string(img.RawJSON()), sampleImageJSON)
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}
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func TestNewFromJSONWithInvalidJSON(t *testing.T) {
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_, err := NewFromJSON([]byte("{}"))
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assert.Error(t, err, "invalid image JSON, no RootFS key")
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}
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func TestMarshalKeyOrder(t *testing.T) {
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b, err := json.Marshal(&Image{
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V1Image: V1Image{
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Comment: "a",
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Author: "b",
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Architecture: "c",
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},
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})
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assert.NilError(t, err)
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expectedOrder := []string{"architecture", "author", "comment"}
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var indexes []int
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for _, k := range expectedOrder {
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indexes = append(indexes, strings.Index(string(b), k))
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}
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if !sort.IntsAreSorted(indexes) {
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t.Fatal("invalid key order in JSON: ", string(b))
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}
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}
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