Support "resize set W H"

testcases/t/252-floating-size.t

@@ -0,0 +1,45 @@
+#!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)
+#
+# Test behavior of "resize <width> <height>" command.
+# Ticket: #1727
+# Bug still in: 4.10.2-1-gc0dbc5d
+use i3test;
+
+################################################################################
+# Check that setting floating windows size works
+################################################################################
+
+my $tmp = fresh_workspace;
+
+open_floating_window;
+
+my @content = @{get_ws($tmp)->{floating_nodes}};
+is(@content, 1, 'one floating node on this ws');
+
+my $oldrect = $content[0]->{rect};
+
+cmd 'resize set 100 px 250 px';
+
+@content = @{get_ws($tmp)->{floating_nodes}};
+cmp_ok($content[0]->{rect}->{x}, '==', $oldrect->{x}, 'x untouched');
+cmp_ok($content[0]->{rect}->{y}, '==', $oldrect->{y}, 'y untouched');
+cmp_ok($content[0]->{rect}->{width}, '!=', $oldrect->{width}, 'width changed');
+cmp_ok($content[0]->{rect}->{height}, '!=', $oldrect->{width}, 'height changed');
+cmp_ok($content[0]->{rect}->{width}, '==', 100, 'width changed to 100 px');
+cmp_ok($content[0]->{rect}->{height}, '==', 250, 'height changed to 250 px');
+
+done_testing;