Allow require_error.t be run from the top level

[perl5.git] / t / op / push.t

diff --git a/t/op/push.t b/t/op/push.t
index 721b63f..c94c919 100644 (file)
--- a/t/op/push.t
+++ b/t/op/push.t
@@ -1,6 +1,10 @@
 #!./perl
 
-# $Header: push.t,v 4.0 91/03/20 01:54:07 lwall Locked $
+BEGIN {
+    chdir 't' if -d 't';
+    require './test.pl';
+    set_up_inc('../lib');
+}
 
 @tests = split(/\n/, <<EOF);
 0 3,                   0 1 2,          3 4 5 6 7
@@ -16,29 +20,55 @@
 -4,                    4 5 6 7,        0 1 2 3
 EOF
 
-print "1..", 2 + @tests, "\n";
+plan tests => 8 + @tests*2;
 die "blech" unless @tests;
 
 @x = (1,2,3);
 push(@x,@x);
-if (join(':',@x) eq '1:2:3:1:2:3') {print "ok 1\n";} else {print "not ok 1\n";}
-push(x,4);
-if (join(':',@x) eq '1:2:3:1:2:3:4') {print "ok 2\n";} else {print "not ok 2\n";}
+is( join(':',@x), '1:2:3:1:2:3', 'push array onto array');
+push(@x,4);
+is( join(':',@x), '1:2:3:1:2:3:4', 'push integer onto array');
+
+# test autovivification
+push @$undef1, 1, 2, 3;
+is( join(':',@$undef1), '1:2:3', 'autovivify array');
+
+# test implicit dereference errors
+eval "push 42, 0, 1, 2, 3";
+like ( $@, qr/must be array/, 'push onto a literal integer');
+
+$hashref = { };
+eval q{ push $hashref, 0, 1, 2, 3 };
+like( $@, qr/Experimental push on scalar is now forbidden/, 'push onto a hashref');
+
+eval q{ push bless([]), 0, 1, 2, 3 };
+like( $@, qr/Experimental push on scalar is now forbidden/, 'push onto a blessed array ref');
+
+$test = 13;
+
+# test context
+{
+    my($first, $second) = ([1], [2]);
+    sub two_things { return +($first, $second) }
+    push @{ two_things() }, 3;
+    is( join(':',@$first), '1', "\$first = [ @$first ];");
+    is( join(':',@$second), '2:3', "\$second = [ @$second ]");
+}
 
-$test = 3;
 foreach $line (@tests) {
     ($list,$get,$leave) = split(/,\t*/,$line);
-    @list = split(' ',$list);
+    ($pos, $len, @list) = split(' ',$list);
     @get = split(' ',$get);
     @leave = split(' ',$leave);
     @x = (0,1,2,3,4,5,6,7);
-    @got = splice(@x,@list);
-    if (join(':',@got) eq join(':',@get) &&
-       join(':',@x) eq join(':',@leave)) {
-       print "ok ",$test++,"\n";
+    if (defined $len) {
+       @got = splice(@x, $pos, $len, @list);
     }
     else {
-       print "not ok ",$test++," got: @got == @get left: @x == @leave\n";
+       @got = splice(@x, $pos);
     }
+    is(join(':',@got), join(':',@get),   "got: @got == @get");
+    is(join(':',@x),   join(':',@leave), "left: @x == @leave");
 }
 
+1;  # this file is require'd by lib/tie-stdpush.t