Assert on the alert sent on FALLBACK_SCSV.

We were only asserting on the shim-side error code.

Change-Id: Idc08c253a7723a2a7fd489da761a56c72f7a3b96
Reviewed-on: https://boringssl-review.googlesource.com/12923
Reviewed-by: Adam Langley <agl@google.com>

ssl/test/runner/alert.go

diff --git a/ssl/test/runner/alert.go b/ssl/test/runner/alert.go
index 8320b7e..93de4b5 100644
--- a/ssl/test/runner/alert.go
+++ b/ssl/test/runner/alert.go
@@ -37,6 +37,7 @@
 	alertProtocolVersion        alert = 70
 	alertInsufficientSecurity   alert = 71
 	alertInternalError          alert = 80
+	alertInappropriateFallback  alert = 86
 	alertUserCanceled           alert = 90
 	alertNoRenegotiation        alert = 100
 	alertMissingExtension       alert = 109
@@ -68,6 +69,7 @@
 	alertProtocolVersion:        "protocol version not supported",
 	alertInsufficientSecurity:   "insufficient security level",
 	alertInternalError:          "internal error",
+	alertInappropriateFallback:  "inappropriate fallback",
 	alertUserCanceled:           "user canceled",
 	alertNoRenegotiation:        "no renegotiation",
 	alertMissingExtension:       "missing extension",

ssl/test/runner/runner.go

diff --git a/ssl/test/runner/runner.go b/ssl/test/runner/runner.go
index bbe6042..da1c90a 100644
--- a/ssl/test/runner/runner.go
+++ b/ssl/test/runner/runner.go
@@ -1315,8 +1315,9 @@
 					SendFallbackSCSV: true,
 				},
 			},
-			shouldFail:    true,
-			expectedError: ":INAPPROPRIATE_FALLBACK:",
+			shouldFail:         true,
+			expectedError:      ":INAPPROPRIATE_FALLBACK:",
+			expectedLocalError: "remote error: inappropriate fallback",
 		},
 		{
 			testType: serverTest,