[glib-networking/wip/laney/test-installed-tests] ci: Add a simple test to verify the installed tests

[Iain Lane <iainl src gnome org>]

commit 3558503c977171dd3e8f6c2377f0e0f1e820f25a
Author: Iain Lane <iainl gnome org>
Date:   Fri Dec 20 11:37:06 2019 +0000

    ci: Add a simple test to verify the installed tests
    
    This would have caught the issue fixed by !99.

 .gitlab-ci.yml | 13 +++++++++++++
 1 file changed, 13 insertions(+)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 62fbed5..c613e57 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -26,7 +26,20 @@ fedora-x86_64:
     - ninja -C build/
     - meson test -v -C build/ --repeat=500
     - meson install -C build/
+    - gnome-desktop-testing-runner -d $HOME/glib-networking-installed/share
   artifacts:
     paths:
       - build/test-results
     when: on_failure
+
+installed-tests:
+  script:
+    - meson -Dgnutls=enabled
+            -Dopenssl=enabled
+            -Dlibproxy=enabled
+            -Dgnome_proxy=enabled
+            -Dwerror=true
+            build/
+    - ninja -C build/
+    - meson install -C build/
+    - gnome-desktop-testing-runner glib-networking