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package specialimage
import (
"bytes"
"context"
"encoding/json"
"errors"
"io"
"strings"
"testing"
"github.com/docker/docker/client"
"github.com/docker/docker/pkg/archive"
"github.com/docker/docker/pkg/jsonmessage"
ocispec "github.com/opencontainers/image-spec/specs-go/v1"
"gotest.tools/v3/assert"
)
type SpecialImageFunc func(string) (*ocispec.Index, error)
func Load(ctx context.Context, t *testing.T, apiClient client.APIClient, imageFunc SpecialImageFunc) string {
tempDir := t.TempDir()
_, err := imageFunc(tempDir)
assert.NilError(t, err)
rc, err := archive.TarWithOptions(tempDir, &archive.TarOptions{})
assert.NilError(t, err)
defer rc.Close()
resp, err := apiClient.ImageLoad(ctx, rc, true)
assert.NilError(t, err, "Failed to load dangling image")
defer resp.Body.Close()
if !assert.Check(t, err) {
respBody, err := io.ReadAll(resp.Body)
if err != nil {
t.Fatalf("Failed to read response body: %v", err)
return ""
}
t.Fatalf("Failed load: %s", string(respBody))
}
all, err := io.ReadAll(resp.Body)
assert.NilError(t, err)
decoder := json.NewDecoder(bytes.NewReader(all))
for {
var msg jsonmessage.JSONMessage
err := decoder.Decode(&msg)
if errors.Is(err, io.EOF) {
break
} else {
assert.NilError(t, err)
}
msg.Stream = strings.TrimSpace(msg.Stream)
if _, imageID, hasID := strings.Cut(msg.Stream, "Loaded image ID: "); hasID {
return imageID
}
if _, imageRef, hasRef := strings.Cut(msg.Stream, "Loaded image: "); hasRef {
return imageRef
}
}
t.Fatalf("failed to read image ID\n%s", string(all))
return ""
}
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