Test modifiability of range elements

diff --git a/t/op/range.t b/t/op/range.t
index 214c168..81f7b0f 100644 (file)
--- a/t/op/range.t
+++ b/t/op/range.t
@@ -9,7 +9,7 @@ require 'test.pl';
 
 use Config;
 
-plan (135);
+plan (141);
 
 is(join(':',1..5), '1:2:3:4:5');
 
@@ -403,4 +403,19 @@ is("@foo", "6 5 4");
 }
 is(stores($x), 0);
 
+is( ( join ' ', map { join '', map ++$_, ($x=1)..4 } 1..2 ), '2345 2345',
+    'modifiable variable num range' );
+is( ( join ' ', map { join '', map ++$_, 1..4      } 1..2 ), '2345 3456',
+    'modifiable const num range' );  # Unresolved bug RT#3105
+$s = ''; for (1..2) { for (1..4) { $s .= ++$_ } $s.=' ' if $_==1; }
+is( $s, '2345 2345','modifiable num counting loop counter' );
+
+
+is( ( join ' ', map { join '', map ++$_, ($x='a')..'d' } 1..2 ), 'bcde bcde',
+    'modifiable variable alpha range' );
+is( ( join ' ', map { join '', map ++$_, 'a'..'d'      } 1..2 ), 'bcde cdef',
+    'modifiable const alpha range' );  # Unresolved bug RT#3105
+$s = ''; for (1..2) { for ('a'..'d') { $s .= ++$_ } $s.=' ' if $_==1; }
+is( $s, 'bcde bcde','modifiable alpha counting loop counter' );
+
 # EOF