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package metadata // import "github.com/docker/docker/distribution/metadata"
import (
"io/ioutil"
"os"
"testing"
"github.com/docker/docker/layer"
"gotest.tools/assert"
)
func TestV1IDService(t *testing.T) {
tmpDir, err := ioutil.TempDir("", "v1-id-service-test")
if err != nil {
t.Fatalf("could not create temp dir: %v", err)
}
defer os.RemoveAll(tmpDir)
metadataStore, err := NewFSMetadataStore(tmpDir)
if err != nil {
t.Fatalf("could not create metadata store: %v", err)
}
v1IDService := NewV1IDService(metadataStore)
ns := v1IDService.namespace()
assert.Equal(t, "v1id", ns)
testVectors := []struct {
registry string
v1ID string
layerID layer.DiffID
}{
{
registry: "registry1",
v1ID: "f0cd5ca10b07f35512fc2f1cbf9a6cefbdb5cba70ac6b0c9e5988f4497f71937",
layerID: layer.DiffID("sha256:a3ed95caeb02ffe68cdd9fd84406680ae93d633cb16422d00e8a7c22955b46d4"),
},
{
registry: "registry2",
v1ID: "9e3447ca24cb96d86ebd5960cb34d1299b07e0a0e03801d90b9969a2c187dd6e",
layerID: layer.DiffID("sha256:86e0e091d0da6bde2456dbb48306f3956bbeb2eae1b5b9a43045843f69fe4aaa"),
},
{
registry: "registry1",
v1ID: "9e3447ca24cb96d86ebd5960cb34d1299b07e0a0e03801d90b9969a2c187dd6e",
layerID: layer.DiffID("sha256:03f4658f8b782e12230c1783426bd3bacce651ce582a4ffb6fbbfa2079428ecb"),
},
}
// Set some associations
for _, vec := range testVectors {
err := v1IDService.Set(vec.v1ID, vec.registry, vec.layerID)
if err != nil {
t.Fatalf("error calling Set: %v", err)
}
}
// Check the correct values are read back
for _, vec := range testVectors {
layerID, err := v1IDService.Get(vec.v1ID, vec.registry)
if err != nil {
t.Fatalf("error calling Get: %v", err)
}
if layerID != vec.layerID {
t.Fatal("Get returned incorrect layer ID")
}
}
// Test Get on a nonexistent entry
_, err = v1IDService.Get("82379823067823853223359023576437723560923756b03560378f4497753917", "registry1")
if err == nil {
t.Fatal("expected error looking up nonexistent entry")
}
// Overwrite one of the entries and read it back
err = v1IDService.Set(testVectors[0].v1ID, testVectors[0].registry, testVectors[1].layerID)
if err != nil {
t.Fatalf("error calling Set: %v", err)
}
layerID, err := v1IDService.Get(testVectors[0].v1ID, testVectors[0].registry)
if err != nil {
t.Fatalf("error calling Get: %v", err)
}
if layerID != testVectors[1].layerID {
t.Fatal("Get returned incorrect layer ID")
}
}
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