package fetch
import (
"context"
"crypto/sha256"
"encoding/hex"
"net/http"
"net/http/httptest"
"os"
"path/filepath"
"testing"
)
func TestVerifyFile(t *testing.T) {
tmpDir := t.TempDir()
testPath := filepath.Join(tmpDir, "test.bin")
content := []byte("hello ocr world")
if err := os.WriteFile(testPath, content, 0644); err != nil {
t.Fatal(err)
}
h := sha256.Sum256(content)
shaStr := hex.EncodeToString(h[:])
if !VerifyFile(testPath, shaStr, int64(len(content))) {
t.Fatalf("expected VerifyFile to succeed")
}
if VerifyFile(testPath, "wrongsha", int64(len(content))) {
t.Fatalf("expected wrong sha to fail")
}
if VerifyFile(testPath, shaStr, int64(len(content)+1)) {
t.Fatalf("expected wrong size to fail")
}
if VerifyFile(filepath.Join(tmpDir, "nonexistent"), shaStr, int64(len(content))) {
t.Fatalf("expected nonexistent file to fail")
}
}
func TestDownloadFileAtomic(t *testing.T) {
content := []byte("mock model weights data")
h := sha256.Sum256(content)
shaStr := hex.EncodeToString(h[:])
srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.Write(content)
}))
defer srv.Close()
tmpDir := t.TempDir()
m := ModelFile{
Name: "test_model.onnx",
URL: srv.URL,
SHA256: shaStr,
Size: int64(len(content)),
}
err := downloadFile(context.Background(), tmpDir, m)
if err != nil {
t.Fatalf("downloadFile failed: %v", err)
}
dest := filepath.Join(tmpDir, m.Name)
if !VerifyFile(dest, shaStr, int64(len(content))) {
t.Fatalf("downloaded file failed verification")
}
}