}
	for _, test := range testCases {
		etag := canonicalizeETag(test.etag)
		if test.canonicalizedETag != etag {
			t.Fatalf("Expected %s , got %s", test.canonicalizedETag, etag)
		}
	}
}

// Tests - CheckPreconditions()
func TestCheckPreconditions(t *testing.T) {
	objModTime := time.Date(2024, time.August, 26, 0o2, 0o1, 0o1, 0, time.UTC)
	objInfo := ObjectInfo{ETag: "aa", ModTime: objModTime}
	testCases := []struct {

	opts.CheckPrecondFn = func(oi ObjectInfo) bool {
		if _, err := DecryptObjectInfo(&oi, r); err != nil {
			writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
			return true
		}

		return checkPreconditions(ctx, w, r, oi, opts)
	}

	zipObjInfo, err := getObjectInfo(ctx, bucket, zipPath, opts)
	if err != nil {
		writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
		return
	}

// Validates the preconditions. Returns true if GET/HEAD operation should not proceed.
// Preconditions supported are:
//
//	If-Modified-Since
//	If-Unmodified-Since
//	If-Match
//	If-None-Match
func checkPreconditions(ctx context.Context, w http.ResponseWriter, r *http.Request, objInfo ObjectInfo, opts ObjectOptions) bool {
	// Return false for methods other than GET and HEAD.
	if r.Method != http.MethodGet && r.Method != http.MethodHead {

		}

		if s3Error := authorizeRequest(ctx, r, policy.GetObjectAction); s3Error != ErrNone {
			writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL)
			return true
		}

		return checkPreconditions(ctx, w, r, oi, opts)
	}

	opts.FastGetObjInfo = true

	var proxy proxyResult
	gr, err := getObjectNInfo(ctx, bucket, object, rs, r.Header, opts)
	if err != nil {
		var (