stupidgcm: deduplicate tests 2/2

Deduplicate the cipher setup that was identical
for all tests for each cipher.

1 files changed, 2 insertions, 41 deletions

diff --git a/internal/stupidgcm/stupidchacha_test.go b/internal/stupidgcm/stupidchacha_test.go
index c1086d1..2690f85 100644
--- a/internal/stupidgcm/stupidchacha_test.go
+++ b/internal/stupidgcm/stupidchacha_test.go
@@ -11,9 +11,7 @@ import (
 	"golang.org/x/crypto/chacha20poly1305"
 )
 
-// TestEncryptDecrypt encrypts and decrypts using both stupidgcm and Go's built-in
-// GCM implementation and verifies that the results are identical.
-func TestEncryptDecryptChacha(t *testing.T) {
+func TestStupidChacha20poly1305(t *testing.T) {
 	key := randBytes(32)
 	c := newChacha20poly1305(key)
 	ref, err := chacha20poly1305.New(key)
@@ -21,42 +19,5 @@ func TestEncryptDecryptChacha(t *testing.T) {
 		t.Fatal(err)
 	}
 
-	testEncryptDecrypt(t, c, ref)
-}
-
-// Seal re-uses the "dst" buffer it is large enough.
-// Check that this works correctly by testing different "dst" capacities from
-// 5000 to 16 and "in" lengths from 1 to 5000.
-func TestInplaceSealChacha(t *testing.T) {
-	key := randBytes(32)
-	c := newChacha20poly1305(key)
-	ref, err := chacha20poly1305.New(key)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	testInplaceSeal(t, c, ref)
-}
-
-// Open re-uses the "dst" buffer it is large enough.
-// Check that this works correctly by testing different "dst" capacities from
-// 5000 to 16 and "in" lengths from 1 to 5000.
-func TestInplaceOpenChacha(t *testing.T) {
-	key := randBytes(32)
-	c := newChacha20poly1305(key)
-	ref, err := chacha20poly1305.New(key)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	testInplaceOpen(t, c, ref)
-}
-
-// TestCorruption verifies that changes in the ciphertext result in a decryption
-// error
-func TestCorruptionChacha(t *testing.T) {
-	key := randBytes(32)
-	c := newChacha20poly1305(key)
-
-	testCorruption(t, c)
+	testCiphers(t, c, ref)
 }