Warnings within the condition of while are not reported with the

[p5sagit/p5-mst-13.2.git] / t / lib / warnings / 9uninit

diff --git a/t/lib/warnings/9uninit b/t/lib/warnings/9uninit
index 9b60808..b1c2a4f 100644 (file)
--- a/t/lib/warnings/9uninit
+++ b/t/lib/warnings/9uninit
@@ -669,6 +669,9 @@ $foo =~ s/$m1/z/;
 $foo =~ s//$g1/;
 $foo =~ s/$m1/$g1/;
 $foo =~ s/./$m1/e;
+undef $g1;
+$m1 = '$g1';
+$foo =~ s//$m1/ee;
 EXPECT
 Use of uninitialized value $_ in pattern match (m//) at - line 5.
 Use of uninitialized value $m1 in regexp compilation at - line 6.
@@ -731,6 +734,7 @@ Use of uninitialized value $g1 in substitution (s///) at - line 39.
 Use of uninitialized value $m1 in regexp compilation at - line 40.
 Use of uninitialized value $g1 in substitution iterator at - line 40.
 Use of uninitialized value $m1 in substitution iterator at - line 41.
+Use of uninitialized value in substitution iterator at - line 44.
 ########
 use warnings 'uninitialized';
 my ($m1);
@@ -759,6 +763,22 @@ Use of uninitialized value $m1 in scalar assignment at - line 5.
 ########
 use warnings 'uninitialized';
 my ($m1);
+our ($g1);
+
+$v = pos($m1) + 1;
+$v = pos($g1) + 1;
+$m1 = 0;
+$g1 = "";
+$v = pos($m1) + 1;
+$v = pos($g1) + 1;
+EXPECT
+Use of uninitialized value in addition (+) at - line 5.
+Use of uninitialized value in addition (+) at - line 6.
+Use of uninitialized value in addition (+) at - line 9.
+Use of uninitialized value in addition (+) at - line 10.
+########
+use warnings 'uninitialized';
+my ($m1);
 
 { my $x = "a" x $m1 }          # NB LHS of repeat does not warn
 { my @x = ("a") x $m1 }
@@ -810,8 +830,8 @@ $v = eval {log $m1};
 $v = sqrt $m1;
 $v = hex $m1;
 $v = oct $m1;
-$v = length $m1;
-$v = length;
+$v = oct;
+$v = length; # does not warn
 EXPECT
 Use of uninitialized value $g1 in atan2 at - line 5.
 Use of uninitialized value $m1 in atan2 at - line 5.
@@ -824,8 +844,7 @@ Use of uninitialized value $m1 in log at - line 11.
 Use of uninitialized value $m1 in sqrt at - line 12.
 Use of uninitialized value $m1 in hex at - line 13.
 Use of uninitialized value $m1 in oct at - line 14.
-Use of uninitialized value $m1 in length at - line 15.
-Use of uninitialized value $_ in length at - line 16.
+Use of uninitialized value $_ in oct at - line 15.
 ########
 use warnings 'uninitialized';
 my ($m1, $v);
@@ -854,7 +873,6 @@ Use of uninitialized value $g2 in substr at - line 7.
 Use of uninitialized value $m2 in substr at - line 7.
 Use of uninitialized value $g1 in substr at - line 7.
 Use of uninitialized value $m1 in substr at - line 7.
-Use of uninitialized value $m1 in substr at - line 7.
 Use of uninitialized value $g1 in substr at - line 8.
 Use of uninitialized value $m1 in substr at - line 8.
 Use of uninitialized value in scalar assignment at - line 8.
@@ -910,7 +928,6 @@ $v = ord $m1;
 $v = chr;
 $v = chr $m1;
 
-# XXX these functions don't warn!
 $v = ucfirst;
 $v = ucfirst $m1;
 $v = lcfirst;
@@ -929,8 +946,16 @@ Use of uninitialized value $_ in ord at - line 7.
 Use of uninitialized value $m1 in ord at - line 8.
 Use of uninitialized value $_ in chr at - line 9.
 Use of uninitialized value $m1 in chr at - line 10.
-Use of uninitialized value $_ in quotemeta at - line 22.
-Use of uninitialized value $m1 in quotemeta at - line 23.
+Use of uninitialized value $_ in ucfirst at - line 12.
+Use of uninitialized value $m1 in ucfirst at - line 13.
+Use of uninitialized value $_ in lcfirst at - line 14.
+Use of uninitialized value $m1 in lcfirst at - line 15.
+Use of uninitialized value $_ in uc at - line 16.
+Use of uninitialized value $m1 in uc at - line 17.
+Use of uninitialized value $_ in lc at - line 18.
+Use of uninitialized value $m1 in lc at - line 19.
+Use of uninitialized value $_ in quotemeta at - line 21.
+Use of uninitialized value $m1 in quotemeta at - line 22.
 ########
 use warnings 'uninitialized';
 my ($m1, $v1, $v2, $v3, $v4);
@@ -1044,8 +1069,6 @@ reset $m1;
 reset $g1;
 EXPECT
 Use of uninitialized value $m1 in subroutine dereference at - line 5.
-Use of uninitialized value $m1 in subroutine dereference at - line 5.
-Use of uninitialized value $g1 in subroutine dereference at - line 6.
 Use of uninitialized value $g1 in subroutine dereference at - line 6.
 Use of uninitialized value $m1 in splice at - line 9.
 Use of uninitialized value $g1 in splice at - line 9.
@@ -1053,8 +1076,8 @@ Use of uninitialized value $m1 in splice at - line 10.
 Use of uninitialized value $g1 in splice at - line 10.
 Use of uninitialized value in addition (+) at - line 10.
 Use of uninitialized value $m1 in method lookup at - line 13.
-Use of uninitialized value $m1 in subroutine entry at - line 15.
-Use of uninitialized value $g1 in subroutine entry at - line 16.
+Use of uninitialized value in subroutine entry at - line 15.
+Use of uninitialized value in subroutine entry at - line 16.
 Use of uninitialized value $m1 in warn at - line 18.
 Use of uninitialized value $g1 in warn at - line 18.
 foo at - line 18.
@@ -1265,7 +1288,6 @@ Use of uninitialized value $m1 in -f at - line 27.
 Use of uninitialized value $m1 in -d at - line 28.
 Use of uninitialized value $m1 in -p at - line 29.
 Use of uninitialized value $m1 in -l at - line 30.
-Use of uninitialized value $m1 in -l at - line 30.
 Use of uninitialized value $m1 in -u at - line 31.
 Use of uninitialized value $m1 in -g at - line 32.
 Use of uninitialized value $m1 in -t at - line 34.
@@ -1283,17 +1305,15 @@ Use of uninitialized value $m1 in localtime at - line 5.
 Use of uninitialized value $g1 in gmtime at - line 6.
 ########
 use warnings 'uninitialized';
-my ($m1, $v);
+my ($m1, $m2, $v);
 
 $v = eval;
 $v = eval $m1;
+$m2 = q($m1); $v = 1 + eval $m2;
 EXPECT
 Use of uninitialized value $_ in eval "string" at - line 4.
-Use of uninitialized value $_ in eval "string" at - line 4.
-Use of uninitialized value UTF8?'':'$_ 'in eval "string" at - line 4.
 Use of uninitialized value $m1 in eval "string" at - line 5.
-Use of uninitialized value $m1 in eval "string" at - line 5.
-Use of uninitialized value UTF8?'':'$m1 'in eval "string" at - line 5.
+Use of uninitialized value in addition (+) at - line 6.
 ########
 use warnings 'uninitialized';
 my ($m1);
@@ -1301,3 +1321,41 @@ my ($m1);
 exit $m1;
 EXPECT
 Use of uninitialized value $m1 in exit at - line 4.
+########
+use warnings 'uninitialized';
+my $undef;
+
+if ($undef == 3) {
+} elsif ($undef == 0) {
+}
+EXPECT
+Use of uninitialized value $undef in numeric eq (==) at - line 4.
+Use of uninitialized value $undef in numeric eq (==) at - line 5.
+########
+# TODO long standing bug - conditions of while loops
+use warnings;
+
+my $c;
+my $d = 1;
+while ($c == 0 && $d) {
+  # a
+  # few
+  # blank
+  # lines
+  undef $d;
+}
+EXPECT
+Use of uninitialized value $c in numeric eq (==) at - line 5.
+Use of uninitialized value $c in numeric eq (==) at - line 5.
+########
+# TODO long standing bug - more general variant of the above problem
+use warnings;
+my $undef;
+
+my $a = $undef + 1;
+my $b
+  = $undef
+  + 1;
+EXPECT
+Use of uninitialized value $undef in addition (+) at - line 4.
+Use of uninitialized value $undef in addition (+) at - line 7.