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package distribution
import (
"context"
"net/http"
"net/http/httptest"
"net/url"
"runtime"
"strings"
"sync/atomic"
"testing"
"github.com/distribution/reference"
registrytypes "github.com/docker/docker/api/types/registry"
"github.com/docker/docker/image"
"github.com/docker/docker/registry"
"github.com/opencontainers/go-digest"
ocispec "github.com/opencontainers/image-spec/specs-go/v1"
"gotest.tools/v3/assert"
is "gotest.tools/v3/assert/cmp"
)
func TestNoMatchesErr(t *testing.T) {
err := noMatchesErr{}
assert.Check(t, is.ErrorContains(err, "no matching manifest for "+runtime.GOOS))
err = noMatchesErr{ocispec.Platform{
Architecture: "arm64",
OS: "windows",
OSVersion: "10.0.17763",
Variant: "v8",
}}
assert.Check(t, is.Error(err, "no matching manifest for windows(10.0.17763)/arm64/v8 in the manifest list entries"))
}
func TestPullSchema2Config(t *testing.T) {
ctx := context.Background()
const imageJSON = `{
"architecture": "amd64",
"os": "linux",
"config": {},
"rootfs": {
"type": "layers",
"diff_ids": []
}
}`
expectedDigest := digest.Digest("sha256:66ad98165d38f53ee73868f82bd4eed60556ddfee824810a4062c4f777b20a5b")
tests := []struct {
name string
handler func(callCount int, w http.ResponseWriter)
expectError string
expectAttempts uint64
}{
{
name: "success first time",
handler: func(callCount int, w http.ResponseWriter) {
w.WriteHeader(http.StatusOK)
_, _ = w.Write([]byte(imageJSON))
},
expectAttempts: 1,
},
{
name: "500 status",
handler: func(callCount int, w http.ResponseWriter) {
if callCount == 1 {
w.WriteHeader(http.StatusInternalServerError)
return
}
w.WriteHeader(http.StatusOK)
_, _ = w.Write([]byte(imageJSON))
},
expectAttempts: 2,
},
{
name: "EOF",
handler: func(callCount int, w http.ResponseWriter) {
if callCount == 1 {
panic("intentional panic")
}
w.WriteHeader(http.StatusOK)
_, _ = w.Write([]byte(imageJSON))
},
expectAttempts: 2,
},
{
name: "unauthorized JSON",
handler: func(callCount int, w http.ResponseWriter) {
w.Header().Set("Content-Type", "application/json")
w.WriteHeader(http.StatusUnauthorized)
_, _ = w.Write([]byte(` { "errors": [{"code": "UNAUTHORIZED", "message": "you need to be authenticated", "detail": "more detail"}]}`))
},
expectError: "unauthorized: you need to be authenticated",
expectAttempts: 1,
},
}
for _, tc := range tests {
t.Run(tc.name, func(t *testing.T) {
var callCount atomic.Uint64
ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
t.Logf("HTTP %s %s", r.Method, r.URL.Path)
defer r.Body.Close()
switch {
case r.Method == http.MethodGet && r.URL.Path == "/v2":
w.WriteHeader(http.StatusOK)
case r.Method == http.MethodGet && r.URL.Path == "/v2/library/testremotename/blobs/"+expectedDigest.String():
tc.handler(int(callCount.Add(1)), w)
default:
w.WriteHeader(http.StatusNotFound)
}
}))
defer ts.Close()
p := testNewPuller(t, ts.URL)
config, err := p.pullSchema2Config(ctx, expectedDigest)
if tc.expectError == "" {
if err != nil {
t.Fatal(err)
}
_, err = image.NewFromJSON(config)
if err != nil {
t.Fatal(err)
}
} else {
if err == nil {
t.Fatalf("expected error to contain %q", tc.expectError)
}
if !strings.Contains(err.Error(), tc.expectError) {
t.Fatalf("expected error=%q to contain %q", err, tc.expectError)
}
}
if cc := callCount.Load(); cc != tc.expectAttempts {
t.Fatalf("got callCount=%d but expected=%d", cc, tc.expectAttempts)
}
})
}
}
func testNewPuller(t *testing.T, rawurl string) *puller {
t.Helper()
uri, err := url.Parse(rawurl)
assert.NilError(t, err, "could not parse url from test server: %v", rawurl)
repoName, err := reference.ParseNormalizedNamed("testremotename")
assert.NilError(t, err)
imagePullConfig := &ImagePullConfig{
Config: Config{
AuthConfig: ®istrytypes.AuthConfig{
RegistryToken: secretRegistryToken,
},
},
}
p := newPuller(registry.APIEndpoint{URL: uri}, repoName, imagePullConfig, nil)
p.repo, err = newRepository(context.Background(), repoName, p.endpoint, p.config.MetaHeaders, p.config.AuthConfig, "pull")
assert.NilError(t, err)
return p
}
|
