47 lines
1.6 KiB
Go
47 lines
1.6 KiB
Go
package composer
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import (
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"encoding/json"
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"errors"
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"strings"
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"testing"
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)
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const demo = `{"module": "demo", "version": "1", "claims": [{"name": "node-files"}]}`
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// A manifest named by its digest goes on the wire as {"digest": ...}, and Fill puts the bytes the indexer keeps in its
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// place; a raw manifest goes as itself.
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func TestAManifestIsItsBytesOrItsDigest(t *testing.T) {
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r := Request{V: Version, Cases: []Case{{Name: "change", Manifests: map[string]Manifest{
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"demo": {Digest: "d1"}, "raw": {Raw: json.RawMessage(`{"module":"raw","version":"1"}`)}},
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Kept: map[string]map[string]Manifest{"laptop": {"demo": {Digest: "d1"}}}}}}
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wire, err := json.Marshal(r)
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if err != nil {
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t.Fatal(err)
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}
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if !strings.Contains(string(wire), `"demo":{"digest":"d1"}`) || !strings.Contains(string(wire), `"raw":{"module":"raw","version":"1"}`) {
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t.Fatalf("on the wire: %s", wire)
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}
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back, err := Decode(wire)
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if err != nil {
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t.Fatal(err)
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}
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asked := 0
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if err := Fill(&back, func(d string) ([]byte, error) {
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asked++
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if d != "d1" {
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return nil, errors.New("no such digest")
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}
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return []byte(demo), nil
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}); err != nil {
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t.Fatal(err)
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}
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if asked != 2 || string(back.Cases[0].Manifests["demo"].Raw) != demo || string(back.Cases[0].Kept["laptop"]["demo"].Raw) != demo {
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t.Fatalf("filled %d times: %+v", asked, back.Cases[0])
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}
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bad := Request{V: Version, Cases: []Case{{Name: "c", Manifests: map[string]Manifest{"x": {Digest: "nope"}}}}}
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if err := Fill(&bad, func(string) ([]byte, error) { return nil, errors.New("not there") }); err == nil || !strings.Contains(err.Error(), "nope") {
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t.Fatalf("a digest the indexer does not hold: %v", err)
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}
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}
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