go/src/crypto/internal/cryptotest/aead.go

var lengths …

type MakeAEAD …

// TestAEAD performs a set of tests on cipher.AEAD implementations, checking
// the documented requirements of NonceSize, Overhead, Seal and Open.
func TestAEAD(t *testing.T, mAEAD MakeAEAD) { … }

// Helper function to Seal a plaintext with additional data. Checks that
// ciphertext isn't bigger than the plaintext length plus Overhead()
func sealMsg(t *testing.T, aead cipher.AEAD, ciphertext, nonce, plaintext, addData []byte) []byte { … }

// Helper function to Open and authenticate ciphertext. Checks that Open
// doesn't error (assuming ciphertext was well-formed with corresponding nonce
// and additional data).
func openWithoutError(t *testing.T, aead cipher.AEAD, plaintext, nonce, ciphertext, addData []byte) []byte { … }