fix occasional op/time.t failure

[p5sagit/p5-mst-13.2.git] / t / op / sprintf2.t

diff --git a/t/op/sprintf2.t b/t/op/sprintf2.t
index 90214ab..c92ab89 100644 (file)
--- a/t/op/sprintf2.t
+++ b/t/op/sprintf2.t
@@ -6,7 +6,7 @@ BEGIN {
     require './test.pl';
 }   
 
-plan tests => 284;
+plan tests => 1292;
 
 is(
     sprintf("%.40g ",0.01),
@@ -85,3 +85,52 @@ for (int(~0/2+1), ~0, "9999999999999999999") {
        is ($bad, 0, "pattern '%v' . chr $ord");
     }
 }
+
+sub mysprintf_int_flags {
+    my ($fmt, $num) = @_;
+    die "wrong format $fmt" if $fmt !~ /^%([-+ 0]+)([1-9][0-9]*)d\z/;
+    my $flag  = $1;
+    my $width = $2;
+    my $sign  = $num < 0 ? '-' :
+               $flag =~ /\+/ ? '+' :
+               $flag =~ /\ / ? ' ' :
+               '';
+    my $abs   = abs($num);
+    my $padlen = $width - length($sign.$abs);
+    return
+       $flag =~ /0/ && $flag !~ /-/ # do zero padding
+           ? $sign . '0' x $padlen . $abs
+           : $flag =~ /-/ # left or right
+               ? $sign . $abs . ' ' x $padlen
+               : ' ' x $padlen . $sign . $abs;
+}
+
+# Whole tests for "%4d" with 2 to 4 flags;
+# total counts: 3 * (4**2 + 4**3 + 4**4) == 1008
+
+my @flags = ("-", "+", " ", "0");
+for my $num (0, -1, 1) {
+    for my $f1 (@flags) {
+       for my $f2 (@flags) {
+           for my $f3 ('', @flags) { # '' for doubled flags
+               my $flag = $f1.$f2.$f3;
+               my $width = 4;
+               my $fmt   = '%'."${flag}${width}d";
+               my $result = sprintf($fmt, $num);
+               my $expect = mysprintf_int_flags($fmt, $num);
+               is($result, $expect, qq/sprintf("$fmt",$num)/);
+
+               next if $f3 eq '';
+
+               for my $f4 (@flags) { # quadrupled flags
+                   my $flag = $f1.$f2.$f3.$f4;
+                   my $fmt   = '%'."${flag}${width}d";
+                   my $result = sprintf($fmt, $num);
+                   my $expect = mysprintf_int_flags($fmt, $num);
+                   is($result, $expect, qq/sprintf("$fmt",$num)/);
+               }
+           }
+       }
+    }
+}
+