Index: base/NSNumberFormatter/basic.m
===================================================================
--- base/NSNumberFormatter/basic.m	(revision 0)
+++ base/NSNumberFormatter/basic.m	(revision 0)
@@ -0,0 +1,57 @@
+#import <Foundation/Foundation.h>
+#import "Testing.h"
+#import "ObjectTesting.h"
+
+int main()
+{
+  CREATE_AUTORELEASE_POOL(arp);
+  NSNumberFormatter *fmt;
+  NSNumber *num;
+  NSString *str;
+
+  TEST_FOR_CLASS(@"NSNumberFormatter",[NSNumberFormatter alloc],
+                 "+[NSNumberFormatter alloc] returns a NSNumberFormatter");
+
+  fmt = [[[NSNumberFormatter alloc] init] autorelease];
+  num = [[[NSNumber alloc] initWithFloat: 1234.567] autorelease];
+
+  str = [fmt stringForObjectValue: num];
+
+  pass([str isEqual: @"1,234.57"], "default format same as Cocoa");
+
+  [fmt setAllowsFloats: NO];
+  str = [fmt stringForObjectValue: num];
+
+  pass([str isEqual: @"1,235"], "round up for fractional part >0.5");
+
+  num = [[[NSNumber alloc] initWithFloat: 1234.432] autorelease];
+  str = [fmt stringForObjectValue: num];
+
+  pass([str isEqual: @"1,234"], "round down for fractional part <0.5");
+
+  [fmt setFormat: @"__000000"];
+  str = [fmt stringForObjectValue: num];
+
+  pass([str isEqual: @"  001234"], "numeric and space padding OK");
+
+  num = [[[NSNumber alloc] initWithFloat: 1234.56] autorelease];
+  [fmt setAllowsFloats: YES];
+  [fmt setPositiveFormat: @"$####.##c"];
+  [fmt setNegativeFormat: @"-$(####.##)"];
+  str = [fmt stringForObjectValue: num];
+
+  pass([str isEqual: @"$1234.56c"], "prefix and suffix used properly");
+
+  num = [[[NSNumber alloc] initWithFloat: -1234.56] autorelease];
+  str = [fmt stringForObjectValue: num];
+
+  pass([str isEqual: @"-$(1234.56)"], "negativeFormat used for -ve number");
+
+  str = [fmt stringForObjectValue: [NSDecimalNumber notANumber]];
+
+  pass([str isEqual: @"NaN"], "notANumber special case");
+
+  DESTROY(arp);
+  return 0;
+}
+