t.Fatalf("entry %d, Next(): got %v, want %v", i, err, nil)
				}
				buf := make([]byte, tc.cnt)
				if _, err := io.ReadFull(tr, buf); err != nil {
					t.Fatalf("entry %d, ReadFull(): got %v, want %v", i, err, nil)
				}
				if string(buf) != tc.output {
					t.Fatalf("entry %d, ReadFull(): got %q, want %q", i, string(buf), tc.output)
				}
			}

			if _, err := tr.Next(); err != io.EOF {

cryptographically secure random // bytes. It is intended for use in APIs that expose a rand io.Reader. func ReadWithReader(r io.Reader, b []byte) error { if _, ok := r.(DefaultReader); ok { Read(b) return nil } fips140.RecordNonApproved() _, err := io.ReadFull(r, b) return err } golang.org/fips140@v1.1.0-rc1/fips140/v1.1.0-rc1/drbg/rand_test.go // Copyright 2025 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package...