44 lines
1.2 KiB
Go
44 lines
1.2 KiB
Go
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package graphdriver // import "github.com/docker/docker/daemon/graphdriver"
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import (
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"encoding/json"
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"testing"
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"github.com/docker/docker/pkg/idtools"
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"gotest.tools/v3/assert"
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)
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func TestGraphDriverInitRequestIsCompatible(t *testing.T) {
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// Graph driver plugins may unmarshal into this version of the init
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// request struct. Verify that the serialization of
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// graphDriverInitRequest is fully backwards compatible.
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type graphDriverInitRequestV1 struct {
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Home string
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Opts []string `json:"Opts"`
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UIDMaps []idtools.IDMap `json:"UIDMaps"`
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GIDMaps []idtools.IDMap `json:"GIDMaps"`
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}
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args := graphDriverInitRequest{
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Home: "homedir",
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Opts: []string{"option1", "option2"},
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IdentityMapping: idtools.IdentityMapping{
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UIDMaps: []idtools.IDMap{{ContainerID: 123, HostID: 456, Size: 42}},
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GIDMaps: []idtools.IDMap{{ContainerID: 789, HostID: 1011, Size: 16}},
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},
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}
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v, err := json.Marshal(&args)
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assert.NilError(t, err)
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var got graphDriverInitRequestV1
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assert.NilError(t, json.Unmarshal(v, &got))
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want := graphDriverInitRequestV1{
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Home: args.Home,
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Opts: args.Opts,
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UIDMaps: args.UIDMaps,
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GIDMaps: args.GIDMaps,
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}
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assert.DeepEqual(t, got, want)
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}
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