Test coverage improvements. Over 90% of branches are now executed in

both directions. (CVS 3820)

FossilOrigin-Name: a776d93ccae3bfa6e992cdd1387571dd21561f98

src/date.c

@@ -16,7 +16,7 @@
 ** sqlite3RegisterDateTimeFunctions() found at the bottom of the file.
 ** All other code has file scope.
 **
-** $Id: date.c,v 1.61 2007/03/29 17:57:21 drh Exp $
+** $Id: date.c,v 1.62 2007/04/06 02:32:34 drh Exp $
 **
 ** NOTES:
 **
@@ -577,7 +577,7 @@ static int parseModifier(const char *zMod, DateTime *p){
     case '8':
     case '9': {
       n = getValue(z, &r);
-      if( n<=0 ) break;
+      assert( n>=1 );
       if( z[n]==':' ){
         /* A modifier of the form (+|-)HH:MM:SS.FFF adds (or subtracts) the
         ** specified number of hours, minutes, seconds, and fractional seconds

src/util.c

@@ -14,7 +14,7 @@
 ** This file contains functions for allocating memory, comparing
 ** strings, and stuff like that.
 **
-** $Id: util.c,v 1.198 2007/03/31 22:33:48 drh Exp $
+** $Id: util.c,v 1.199 2007/04/06 02:32:34 drh Exp $
 */
 #include "sqliteInt.h"
 #include "os.h"
@@ -751,7 +751,7 @@ void sqlite3SetString(char **pz, ...){
   const char *z;
   char *zResult;
 
-  if( pz==0 ) return;
+  assert( pz!=0 );
   nByte = 1;
   va_start(ap, pz);
   while( (z = va_arg(ap, const char*))!=0 ){