[gjs: 1/2] installed-tests: skip some tests if GTK can't be initialised

[Philip Chimento <pchimento src gnome org>]

commit 9c524547d69786ba8fe6d2227617950028ba41b9
Author: Ross Burton <ross burton intel com>
Date:   Mon Apr 20 16:40:02 2020 +0100

    installed-tests: skip some tests if GTK can't be initialised
    
    A few of the tests need GTK to work, but GTK won't initialise if a X or
    Wayland environment isn't found. This isn't uncommon in build
    infrastructures, so if GTK initialisation fails skip the test instead of
    failing.

 installed-tests/js/testCairo.js         | 11 ++++++-----
 installed-tests/js/testIntrospection.js |  8 ++++++++
 2 files changed, 14 insertions(+), 5 deletions(-)
---
diff --git a/installed-tests/js/testCairo.js b/installed-tests/js/testCairo.js
index 08686960..78f0efbf 100644
--- a/installed-tests/js/testCairo.js
+++ b/installed-tests/js/testCairo.js
@@ -2,17 +2,13 @@ imports.gi.versions.Gdk = '3.0';
 imports.gi.versions.Gtk = '3.0';
 
 const Cairo = imports.cairo;
-const {Gdk, GIMarshallingTests, Gtk, Regress} = imports.gi;
+const {Gdk, GIMarshallingTests, GLib, Gtk, Regress} = imports.gi;
 
 function _ts(obj) {
     return obj.toString().slice(8, -1);
 }
 
 describe('Cairo', function () {
-    beforeAll(function () {
-        Gtk.init(null);
-    });
-
     let cr, surface;
     beforeEach(function () {
         surface = new Cairo.ImageSurface(Cairo.Format.ARGB32, 10, 10);
@@ -166,6 +162,11 @@ describe('Cairo', function () {
         });
 
         it('has methods when created from a C function', function () {
+            if (GLib.getenv('ENABLE_GTK') !== 'yes') {
+                pending('GTK disabled');
+                return;
+            }
+            Gtk.init(null);
             let win = new Gtk.OffscreenWindow();
             let da = new Gtk.DrawingArea();
             win.add(da);
diff --git a/installed-tests/js/testIntrospection.js b/installed-tests/js/testIntrospection.js
index d50f1566..44c504ac 100644
--- a/installed-tests/js/testIntrospection.js
+++ b/installed-tests/js/testIntrospection.js
@@ -31,6 +31,10 @@ describe('Unsafe integer marshalling', function () {
 describe('Marshalling empty flat arrays of structs', function () {
     let widget;
     beforeAll(function () {
+        if (GLib.getenv('ENABLE_GTK') !== 'yes') {
+            pending('GTK disabled');
+            return;
+        }
         Gtk.init(null);
     });
 
@@ -73,6 +77,10 @@ describe('GError domains', function () {
 describe('Object properties on GtkBuilder-constructed objects', function () {
     let o1;
     beforeAll(function () {
+        if (GLib.getenv('ENABLE_GTK') !== 'yes') {
+            pending('GTK disabled');
+            return;
+        }
         Gtk.init(null);
     });