Update the sqldiff tool so that it generates an rbu_count table.

FossilOrigin-Name: 1f7afb6e9be9f549a91bf2ab492df15698df89fd

ext/rbu/rbudiff.test

@@ -36,6 +36,7 @@ proc step_rbu {target rbu} {
 }
 
 proc apply_rbudiff {sql target} {
+  test_rbucount $sql
   forcedelete rbu.db
   sqlite3 rbudb rbu.db
   rbudb eval $sql
@@ -43,6 +44,27 @@ proc apply_rbudiff {sql target} {
   step_rbu $target rbu.db
 }
 
+# The only argument is the output of an [sqldiff -rbu] run. This command
+# tests that the contents of the rbu_count table is correct. An exception
+# is thrown if it is not.
+#
+proc test_rbucount {sql} {
+  sqlite3 tmpdb ""
+  tmpdb eval $sql
+  tmpdb eval {
+    SELECT name FROM sqlite_master WHERE name LIKE 'data%' AND type='table'
+  } {
+    set a [tmpdb eval "SELECT count(*) FROM $name"]
+    set b [tmpdb eval {SELECT cnt FROM rbu_count WHERE tbl = $name}]
+    if {$a != $b} { 
+      tmpdb close
+      error "rbu_count error - tbl = $name" 
+    }
+  }
+  tmpdb close
+  return ""
+}
+
 proc rbudiff_cksum {db1} {
   set txt ""
 

ext/rbu/rbuprogress.test

@@ -381,6 +381,16 @@ foreach {bReopen} { 0 1 } {
       } 
       {2500 4000 6000 8000 10000}
       {5000 10000}
+
+      3 {
+        CREATE TABLE data0_t1(rbu_rowid, a, b, c, rbu_control);
+        INSERT INTO data0_t1 VALUES(1, NULL, NULL, NULL, 1);
+        INSERT INTO data0_t1 VALUES(2, NULL, NULL, 7, '..x');
+        CREATE TABLE rbu_count(tbl, cnt);
+        INSERT INTO rbu_count VALUES('data0_t1', 2); 
+      } 
+      {2500 4000 6000 8000 10000}
+      {5000 10000}
     } {
 
       reset_db ; execsql $tbl