meson: port installed tests and reftests

I couldn't get all reftests to work reliably, so the tests failing
on either CI or on my machine are skipped for now.

Installed tests are disabled by default and can be enabled with "-Dinstalled_tests=true"

testsuite/a11y/meson.build

@@ -46,6 +46,8 @@ skipped_tests = [
 a11y_dump_bin = executable('accessibility-dump',
   'accessibility-dump.c',
   dependencies: libgtk_dep,
+  install: get_option('installed_tests'),
+  install_dir: installed_test_bindir,
 )
 
 foreach t: a11y_state_tests
@@ -85,6 +87,8 @@ foreach t: a11y_tests
 
   test (t,
         executable (t, '@0@.c'.format(t),
+                    install: get_option('installed_tests'),
+                    install_dir: installed_test_bindir,
                     dependencies: libgtk_dep),
         args: [ '--tap', '-k', ],
         timeout: 120,
@@ -99,4 +103,106 @@ foreach t: a11y_tests
         suite: 'a11y')
 endforeach
 
+installed_test_data = [
+  'hello-world.ui',
+  'hello-world.txt',
+  'mnemonic.ui',
+  'mnemonic.txt',
+  'accessible-name.ui',
+  'accessible-name.txt',
+  'notebook.ui',
+  'notebook.txt',
+  'range.ui',
+  'range.txt',
+  'link.ui',
+  'link.txt',
+  'text.ui',
+  'text.txt',
+  'buttons.ui',
+  'buttons.txt',
+  'colorchooser.ui',
+  'colorchooser.txt',
+  'about.ui',
+  'about.txt',
+  'messagedialog.ui',
+  'messagedialog.txt',
+  'expander.ui',
+  'expander.txt',
+  'assistant.ui',
+  'assistant.txt',
+  'pickers.ui',
+  'pickers.txt',
+  'label.ui',
+  'label.txt',
+  'lockbutton.ui',
+  'lockbutton.txt',
+  'spinner.ui',
+  'spinner.txt',
+  'progress.ui',
+  'progress.txt',
+  'infobar.ui',
+  'infobar.txt',
+  'calendar.ui',
+  'calendar.txt',
+  'statusbar.ui',
+  'statusbar.txt',
+  'paned.ui',
+  'paned.txt',
+  'iconview.ui',
+  'iconview.txt',
+  'entries.ui',
+  'entries.txt',
+  'scale-drawvalue.ui',
+  'scale-drawvalue.txt',
+  'placeholder-text.ui',
+  'placeholder-text.txt',
+  'menu.ui',
+  'menu.txt',
+  'menubutton.ui',
+  'menubutton.txt',
+  'menubutton2.ui',
+  'menubutton2.txt',
+  'menubutton3.ui',
+  'menubutton3.txt',
+  'combos.ui',
+  'combos.txt',
+  'listbox.ui',
+  'listbox.txt',
+  'stack.ui',
+  'stack.txt',
+  'headerbar.ui',
+  'headerbar.txt',
+  'tree.ui',
+  'tree.txt',
+  'actionbar.ui',
+  'actionbar.txt',
+  'tooltips.ui',
+  'tooltips.txt',
+]
+
+a11y_installed_tests = [
+  'a11ytests.test',
+  'a11ychildren.test',
+  'a11ytree.test',
+  'a11yvalue.test',
+  'a11yderive.test',
+  'a11ytext.test',
+  'a11yutil.test',
+  'a11ymisc.test',
+]
+
+if get_option('installed_tests')
+  test_cdata = configuration_data()
+  test_cdata.set('libexecdir', gtk_libexecdir)
+
+  foreach t: a11y_installed_tests
+    configure_file(input: '@0@.in'.format(t),
+                   output: t,
+                   configuration: test_cdata,
+                   install_dir: installed_test_datadir)
+  endforeach
+
+  install_data(installed_test_data, install_dir: join_paths(installed_test_bindir, 'a11ytests'))
+endif
+
 subdir('state')