Handle floating centering in one function and test for consistency

[i3/i3] / testcases / t / 241-consistent-center.t

diff --git a/testcases/t/241-consistent-center.t b/testcases/t/241-consistent-center.t
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+#!perl
+# vim:ts=4:sw=4:expandtab
+#
+# Please read the following documents before working on tests:
+# • http://build.i3wm.org/docs/testsuite.html
+#   (or docs/testsuite)
+#
+# • http://build.i3wm.org/docs/lib-i3test.html
+#   (alternatively: perldoc ./testcases/lib/i3test.pm)
+#
+# • http://build.i3wm.org/docs/ipc.html
+#   (or docs/ipc)
+#
+# • http://onyxneon.com/books/modern_perl/modern_perl_a4.pdf
+#   (unless you are already familiar with Perl)
+#
+# Verifies that most of i3's centering methods produce consistent results.
+# Decorations are disabled to avoid floating_enable's logic which shifts
+# windows upwards dependent on their decoration height.
+#
+use i3test i3_autostart => 0;
+
+my $config = <<EOT;
+# i3 config file (v4)
+font -misc-fixed-medium-r-normal--13-120-75-75-C-70-iso10646-1
+
+new_window none
+new_float none
+EOT
+
+my $pid = launch_with_config($config);
+
+#####################################################################
+# Open a floating window, verifying that its initial position is
+# centered, and also verify that both centering methods leave it in
+# its original spot.
+#####################################################################
+
+my $first = open_floating_window;
+
+my $initial = $first->rect;
+is(int($initial->{x} + $initial->{width} / 2), int($x->root->rect->width / 2),
+   'x coordinates match');
+is(int($initial->{y} + $initial->{height} / 2), int($x->root->rect->height / 2),
+   'y coordinates match');
+
+cmd 'move position center';
+
+my $new = $first->rect;
+is($initial->{x}, $new->{x}, 'x coordinates match');
+is($initial->{y}, $new->{y}, 'y coordinates match');
+
+cmd 'move absolute position center';
+
+$new = $first->rect;
+is($initial->{x}, $new->{x}, 'x coordinates match');
+is($initial->{y}, $new->{y}, 'y coordinates match');
+
+#####################################################################
+# Create a second window and move it into and out of the scratchpad.
+# Because it hasn't been moved or resized, it should be floated in
+# the center of the screen when pulled out of the scratchpad.
+#####################################################################
+
+my $second = open_window;
+
+cmd 'move scratchpad, scratchpad show';
+
+$new = $second->rect;
+my $mid_init = $initial->{x} + int($initial->{width} / 2);
+my $mid_new = $new->{x} + int($new->{width} / 2);
+is($mid_init, $mid_new, 'x midpoint is ws center');
+
+$mid_init = $initial->{y} + int($initial->{height} / 2);
+$mid_new = $new->{y} + int($new->{height} / 2);
+is($mid_init, $mid_new, 'y midpoint is ws center');
+
+#####################################################################
+# Verify that manually floating a tiled window results in proper
+# centering.
+#####################################################################
+
+my $third = open_window;
+
+cmd 'floating enable';
+
+$new = $third->rect;
+is($initial->{x}, $new->{x}, 'x coordinates match');
+is($initial->{y}, $new->{y}, 'y coordinates match');
+
+#####################################################################
+# Create a child window of the previous window, which should result
+# in the new window being centered over the last one.
+#####################################################################
+
+my $fourth = open_window( dont_map => 1, client_leader => $third );
+$fourth->map;
+sync_with_i3;
+
+my $child = $fourth->rect;
+is($new->{x}, $child->{x}, 'x coordinates match');
+is($new->{y}, $child->{y}, 'y coordinates match');
+
+exit_gracefully($pid);
+
+done_testing;