[mutter] Add a test for stacking vs. minimization

[Owen Taylor <otaylor src gnome org>]

commit cdfb30120074fe4067ab1ec0534af3529ee3c520
Author: Owen W. Taylor <otaylor fishsoup net>
Date:   Wed Sep 24 16:16:03 2014 -0400

    Add a test for stacking vs. minimization
    
    Test that the guard window is in the right place.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=737233

 src/Makefile-tests.am                 |    1 +
 src/tests/stacking/minimized.metatest |   18 ++++++++++++++++++
 2 files changed, 19 insertions(+), 0 deletions(-)
---
diff --git a/src/Makefile-tests.am b/src/Makefile-tests.am
index ebb35fd..7204bf4 100644
--- a/src/Makefile-tests.am
+++ b/src/Makefile-tests.am
@@ -7,6 +7,7 @@ stackingdir = $(pkgdatadir)/tests/stacking
 dist_stacking_DATA =                           \
        tests/stacking/basic-x11.metatest       \
        tests/stacking/basic-wayland.metatest   \
+       tests/stacking/minimized.metatest       \
        tests/stacking/mixed-windows.metatest   \
        tests/stacking/override-redirect.metatest
 
diff --git a/src/tests/stacking/minimized.metatest b/src/tests/stacking/minimized.metatest
new file mode 100644
index 0000000..3da236d
--- /dev/null
+++ b/src/tests/stacking/minimized.metatest
@@ -0,0 +1,18 @@
+new_client 1 x11
+create 1/1
+show 1/1
+create 1/2
+show 1/2
+wait
+assert_stacking 1/1 1/2
+
+minimize 1/2
+wait
+assert_stacking 1/2 | 1/1
+
+# unminimize doesn't work for GTK+ currently, because GTK+ expects
+# to be able to de-iconify with MapWindow, but the window is already
+# mapped.
+activate 1/2
+wait
+assert_stacking 1/1 1/2