small tests from bcrypt_test added

biicrypt/biicrypt_test.go

@@ -55,3 +55,30 @@ func TestBiiCryptReformatSecret(t *testing.T) {
 		t.Fatalf("Expected password and password generated from new secret do not match")
 	}
 }
+
+func BenchmarkEqual(b *testing.B) {
+	b.StopTimer()
+	passwd := []byte("somepasswordyoulike")
+	hash, secret, _ := GenerateFromPassword(passwd, DefaultCost)
+	b.StartTimer()
+	for i := 0; i < b.N; i++ {
+		other_hash, _ := GenerateWithSecret(passwd, secret)
+		subtle.ConstantTimeCompare(hash, other_hash)
+	}
+}
+
+func BenchmarkDefaultCost(b *testing.B) {
+	b.StopTimer()
+	passwd := []byte("mylongpassword1234")
+	b.StartTimer()
+	for i := 0; i < b.N; i++ {
+		GenerateFromPassword(passwd, DefaultCost)
+	}
+}
+
+func TestPasswordTooLong(t *testing.T) {
+	_, _, err := GenerateFromPassword(make([]byte, 73), 1)
+	if err != ErrPasswordTooLong {
+		t.Errorf("unexpected error: got %q, want %q", err, ErrPasswordTooLong)
+	}
+}