ci: Add CI tests for the sys crates

.gitlab-ci.yml

@@ -255,6 +255,58 @@ test nightly all-features:
     - '.cargo test'
     - .img-nightly
 
+.cargo test sys:
+  stage: "test"
+  script:
+    - rustc --version
+      # First build and test all the crates with their relevant features
+      # Keep features in sync with below
+    - |
+      for crate in gstreamer*/sys; do
+        if [ -e $crate/Cargo.toml ]; then
+          cargo build --locked --color=always --manifest-path $crate/Cargo.toml
+          cargo build --locked --color=always --manifest-path $crate/Cargo.toml --all-features
+        fi
+      done
+    # Run tests for crates we can currently run.
+    # Other tests are broken currently.
+    - |
+        for crate in gstreamer/sys \
+                     gstreamer-app/sys \
+                     gstreamer-audio/sys \
+                     gstreamer-base/sys \
+                     gstreamer-check/sys \
+                     gstreamer-controller/sys \
+                     gstreamer-gl/sys \
+                     gstreamer-mpegts/sys \
+                     gstreamer-net/sys \
+                     gstreamer-pbutils/sys \
+                     gstreamer-player/sys \
+                     gstreamer-rtsp-server/sys \
+                     gstreamer-rtsp/sys \
+                     gstreamer-sdp/sys \
+                     gstreamer-tag/sys \
+                     gstreamer-video/sys \
+                     gstreamer-webrtc/sys; \
+            do \
+                cargo test --locked --manifest-path $crate/Cargo.toml; \
+            done
+
+test stable sys:
+  extends:
+    - '.cargo test sys'
+    - .img-stable
+
+test 1.41 sys:
+  extends:
+    - '.cargo test sys'
+    - .img-1-41
+
+test nightly sys:
+  extends:
+    - '.cargo test sys'
+    - .img-nightly
+
 rustfmt:
   extends: .img-stable
   stage: "lint"