github.com/lazyboychen7/engine@v17.12.1-ce-rc2+incompatible/distribution/metadata/v1_id_service_test.go (about)

     1  package metadata
     2  
     3  import (
     4  	"io/ioutil"
     5  	"os"
     6  	"runtime"
     7  	"testing"
     8  
     9  	"github.com/docker/docker/layer"
    10  )
    11  
    12  func TestV1IDService(t *testing.T) {
    13  	tmpDir, err := ioutil.TempDir("", "v1-id-service-test")
    14  	if err != nil {
    15  		t.Fatalf("could not create temp dir: %v", err)
    16  	}
    17  	defer os.RemoveAll(tmpDir)
    18  
    19  	metadataStore, err := NewFSMetadataStore(tmpDir, runtime.GOOS)
    20  	if err != nil {
    21  		t.Fatalf("could not create metadata store: %v", err)
    22  	}
    23  	v1IDService := NewV1IDService(metadataStore)
    24  
    25  	testVectors := []struct {
    26  		registry string
    27  		v1ID     string
    28  		layerID  layer.DiffID
    29  	}{
    30  		{
    31  			registry: "registry1",
    32  			v1ID:     "f0cd5ca10b07f35512fc2f1cbf9a6cefbdb5cba70ac6b0c9e5988f4497f71937",
    33  			layerID:  layer.DiffID("sha256:a3ed95caeb02ffe68cdd9fd84406680ae93d633cb16422d00e8a7c22955b46d4"),
    34  		},
    35  		{
    36  			registry: "registry2",
    37  			v1ID:     "9e3447ca24cb96d86ebd5960cb34d1299b07e0a0e03801d90b9969a2c187dd6e",
    38  			layerID:  layer.DiffID("sha256:86e0e091d0da6bde2456dbb48306f3956bbeb2eae1b5b9a43045843f69fe4aaa"),
    39  		},
    40  		{
    41  			registry: "registry1",
    42  			v1ID:     "9e3447ca24cb96d86ebd5960cb34d1299b07e0a0e03801d90b9969a2c187dd6e",
    43  			layerID:  layer.DiffID("sha256:03f4658f8b782e12230c1783426bd3bacce651ce582a4ffb6fbbfa2079428ecb"),
    44  		},
    45  	}
    46  
    47  	// Set some associations
    48  	for _, vec := range testVectors {
    49  		err := v1IDService.Set(vec.v1ID, vec.registry, vec.layerID)
    50  		if err != nil {
    51  			t.Fatalf("error calling Set: %v", err)
    52  		}
    53  	}
    54  
    55  	// Check the correct values are read back
    56  	for _, vec := range testVectors {
    57  		layerID, err := v1IDService.Get(vec.v1ID, vec.registry)
    58  		if err != nil {
    59  			t.Fatalf("error calling Get: %v", err)
    60  		}
    61  		if layerID != vec.layerID {
    62  			t.Fatal("Get returned incorrect layer ID")
    63  		}
    64  	}
    65  
    66  	// Test Get on a nonexistent entry
    67  	_, err = v1IDService.Get("82379823067823853223359023576437723560923756b03560378f4497753917", "registry1")
    68  	if err == nil {
    69  		t.Fatal("expected error looking up nonexistent entry")
    70  	}
    71  
    72  	// Overwrite one of the entries and read it back
    73  	err = v1IDService.Set(testVectors[0].v1ID, testVectors[0].registry, testVectors[1].layerID)
    74  	if err != nil {
    75  		t.Fatalf("error calling Set: %v", err)
    76  	}
    77  	layerID, err := v1IDService.Get(testVectors[0].v1ID, testVectors[0].registry)
    78  	if err != nil {
    79  		t.Fatalf("error calling Get: %v", err)
    80  	}
    81  	if layerID != testVectors[1].layerID {
    82  		t.Fatal("Get returned incorrect layer ID")
    83  	}
    84  }