add test case where (fake) sms messages never arrive

xwords4/linux/linuxmain.c

@@ -639,6 +639,7 @@ typedef enum {
     ,CMD_DROPSENDRELAY
     ,CMD_DROPRCVRELAY
     ,CMD_DROPSENDSMS
+    ,CMD_SMSFAILPCT
     ,CMD_DROPRCVSMS
     ,CMD_FORCECHANNEL
 
@@ -762,6 +763,7 @@ static CmdInfoRec CmdInfoRecs[] = {
     ,{ CMD_DROPSENDRELAY, false, "drop-send-relay", "start new games with relay send disabled" }
     ,{ CMD_DROPRCVRELAY, false, "drop-receive-relay", "start new games with relay receive disabled" }
     ,{ CMD_DROPSENDSMS, false, "drop-send-sms", "start new games with sms send disabled" }
+    ,{ CMD_SMSFAILPCT, true, "sms-fail-pct", "percent of sms sends, randomly chosen, never arrive" }
     ,{ CMD_DROPRCVSMS, false, "drop-receive-sms", "start new games with sms receive disabled" }
     ,{ CMD_FORCECHANNEL, true, "force-channel", "force (clients) to use this hostid/channel" }
 
@@ -2445,6 +2447,10 @@ main( int argc, char** argv )
         case CMD_DROPSENDSMS:
             mainParams.commsDisableds[COMMS_CONN_SMS][1] = XP_TRUE;
             break;
+        case CMD_SMSFAILPCT:
+            mainParams.smsSendFailPct = atoi(optarg);
+            XP_ASSERT( mainParams.smsSendFailPct >= 0 && mainParams.smsSendFailPct <= 100 );
+            break;
         case CMD_DROPRCVSMS:
             mainParams.commsDisableds[COMMS_CONN_SMS][0] = XP_TRUE;
             break;

xwords4/linux/linuxsms.c

@@ -114,15 +114,24 @@ unlock_queue( LinSMSData* storage )
 }
 
 static XP_S16
-send_sms( LinSMSData* storage, XWStreamCtxt* stream, 
+write_fake_sms( LaunchParams* params, XWStreamCtxt* stream,
                 const XP_UCHAR* phone, XP_U16 port )
 {
+    XP_S16 nSent;
+    XP_U16 pct = XP_RANDOM() % 100;
+    XP_Bool skipWrite = pct < params->smsSendFailPct;
+
+    if ( skipWrite ) {
+        nSent = stream_getSize( stream );
+        XP_LOGF( "%s(): dropping sms msg of len %d to phone %s", __func__,
+                 nSent, phone );
+    } else {
+        LinSMSData* storage = getStorage( params );
         const XP_U8* buf = stream_getPtr( stream );
         XP_U16 buflen = stream_getSize( stream );
         XP_LOGF( "%s(phone=%s, port=%d, len=%d)", __func__, phone,
                  port, buflen );
 
-    XP_S16 nSent = -1;
         XP_ASSERT( !!storage );
         char path[256];
 
@@ -170,8 +179,9 @@ send_sms( LinSMSData* storage, XWStreamCtxt* stream,
         nSent = buflen;
 
         LOG_RETURNF( "%d", nSent );
+    }
     return nSent;
-} /* linux_sms_send */
+} /* write_fake_sms */
 
 static XP_S16
 decodeAndDelete( LinSMSData* storage, const gchar* name, 
@@ -350,8 +360,7 @@ linux_sms_invite( LaunchParams* params, const CurGameInfo* gi,
 
     addrToStream( stream, addr );
 
-    LinSMSData* storage = getStorage( params );
+    write_fake_sms( params, stream, toPhone, toPort );
-    send_sms( storage, stream, toPhone, toPort );
 
     stream_destroy( stream );
 }
@@ -381,8 +390,7 @@ doSend( LaunchParams* params, const XP_U8* buf,
     stream_putU32( stream, gameID );
     stream_putBytes( stream, buf, buflen );
 
-    LinSMSData* storage = getStorage( params );
+    (void)write_fake_sms( params, stream, phone, port );
-    (void)send_sms( storage, stream, phone, port );
     stream_destroy( stream );
 }
 

xwords4/linux/main.h

@@ -59,6 +59,7 @@ typedef struct LaunchParams {
     char* dbName;
     sqlite3* pDb;               /* null unless opened */
     XP_U16 saveFailPct;
+    XP_U16 smsSendFailPct;
     const XP_UCHAR* playerDictNames[MAX_NUM_PLAYERS];
 #ifdef USE_SQLITE
     char* dbFileName;

xwords4/linux/scripts/discon_ok2.py

@@ -393,6 +393,8 @@ def build_cmds(args):
                     PARAMS += ['--use-udp']
             if args.ADD_SMS:
                 PARAMS += [ '--sms-number', PHONE_BASE + str(DEV - 1) ]
+                if args.SMS_FAIL_PCT > 0:
+                    PARAMS += [ '--sms-fail-pct', args.SMS_FAIL_PCT ]
                 if DEV > 1:
                     PARAMS += [ '--server-sms-number', PHONE_BASE + '0' ]
 
@@ -655,6 +657,7 @@ def mkParser():
     parser.add_argument('--trade-pct', dest = 'TRADE_PCT', default = 0, type = int)
 
     parser.add_argument('--add-sms', dest = 'ADD_SMS', default = False, action = 'store_true')
+    parser.add_argument('--sms-fail-pct', dest = 'SMS_FAIL_PCT', default = 0, type = int)
     parser.add_argument('--remove-relay', dest = 'ADD_RELAY', default = True, action = 'store_false')
 
     parser.add_argument('--with-valgrind', dest = 'VALGRIND', default = False,