i3test: reliably warp the pointer to (0, 0) before tests start

diff --git a/testcases/lib/i3test.pm.in b/testcases/lib/i3test.pm.in
index 1e4eea75137c52a584a0f2edc7f1ccdb32cc31f4..429e51d4187e89b56f027195d51592f06e6bc42c 100644 (file)
--- a/testcases/lib/i3test.pm.in
+++ b/testcases/lib/i3test.pm.in
@@ -133,6 +133,22 @@ sub import {
     my ($class, %args) = @_;
     my $pkg = caller;
 
+    $x ||= i3test::X11->new;
+    # set the pointer to a predictable position in case a previous test has
+    # disturbed it
+    $x->warp_pointer(
+       0, # src_window (None)
+       $x->get_root_window(), # dst_window (None)
+       0, # src_x
+       0, # src_y
+       0, # src_width
+       0, # src_height
+       0, # dst_x
+       0); # dst_y
+    # Synchronize with X11 to ensure the pointer has been warped before i3
+    # starts up.
+    $x->get_input_focus_reply($x->get_input_focus()->{sequence});
+
     $i3_autostart = delete($args{i3_autostart}) // 1;
     my $i3_config = delete($args{i3_config}) // '-default';
 
@@ -155,10 +171,6 @@ __
     strict->import;
     warnings->import;
 
-    $x ||= i3test::X11->new;
-    # set the pointer to a predictable position in case a previous test has
-    # disturbed it
-    $x->root->warp_pointer(0, 0);
     $cv->recv if $i3_autostart;
 
     @_ = ($class);