fix c tests to do win on site id note value

core/src/rows-impacted.test.c

@@ -314,7 +314,7 @@ static void testCreateThatDoesNotChangeAnything() {
   printf("\t\e[0;32mSuccess\e[0m\n");
 }
 
-static void testValueWin() {
+static void testValueWouldWinButSiteIdLoses() {
   printf("ValueWin\n");
   int rc = SQLITE_OK;
   char *err = 0;
@@ -326,10 +326,37 @@ static void testValueWin() {
   rc = sqlite3_exec(db, "BEGIN", 0, 0, 0);
   rc += sqlite3_exec(db,
                      "INSERT INTO crsql_changes VALUES ('foo', X'010901', 'b', "
-                     "3, 1, 1, NULL, 1, 1)",
+                     "3, 1, 1, X'00000000000000000000000000000000', 1, 1)",
                      0, 0, &err);
   sqlite3_prepare_v2(db, "SELECT crsql_rows_impacted()", -1, &pStmt, 0);
   sqlite3_step(pStmt);
+  // value is greater but site id lower, a loss and now rows changed.
+  assert(sqlite3_column_int(pStmt, 0) == 0);
+  sqlite3_finalize(pStmt);
+  rc += sqlite3_exec(db, "COMMIT", 0, 0, 0);
+  assert(rc == SQLITE_OK);
+
+  crsql_close(db);
+  printf("\t\e[0;32mSuccess\e[0m\n");
+}
+
+static void testSiteIdWin() {
+  printf("SiteIdWin\n");
+  int rc = SQLITE_OK;
+  char *err = 0;
+  sqlite3 *db = createDb();
+  sqlite3_stmt *pStmt = 0;
+
+  rc = sqlite3_exec(db, "INSERT INTO foo VALUES (1, 2)", 0, 0, 0);
+
+  rc = sqlite3_exec(db, "BEGIN", 0, 0, 0);
+  rc += sqlite3_exec(db,
+                     "INSERT INTO crsql_changes VALUES ('foo', X'010901', 'b', "
+                     "3, 1, 1, X'FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF', 1, 1)",
+                     0, 0, &err);
+  sqlite3_prepare_v2(db, "SELECT crsql_rows_impacted()", -1, &pStmt, 0);
+  sqlite3_step(pStmt);
+  // site id is larger, a win
   assert(sqlite3_column_int(pStmt, 0) == 1);
   sqlite3_finalize(pStmt);
   rc += sqlite3_exec(db, "COMMIT", 0, 0, 0);
@@ -374,7 +401,8 @@ void rowsImpactedTestSuite() {
   testUpdateThatDoesNotChangeAnything();
   testDeleteThatDoesNotChangeAnything();
   testCreateThatDoesNotChangeAnything();
-  testValueWin();
+  testValueWouldWinButSiteIdLoses();
+  testSiteIdWin();
   testClockWin();
   testDelete();
 }