python tests: Add analytics lib runtime path

This way, it will run it against the just compiled version when doing full build.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/6026>

subprojects/gst-python/testsuite/meson.build

@@ -4,7 +4,7 @@ tests = [
     ['Test gst', 'test_gst.py'],
     ['Test fundamentals', 'test_types.py'],
     ['Test plugins', 'test_plugin.py'],
-    ['Test analytics', 'test_analytics.py'],
+    ['Test analytics', 'test_analytics.py', ['gst-plugins-bad/gst-libs/gst/analytics', 'gst-plugins-base/gst-libs/gst/video']],
 ]
 
 runcmd = run_command(python, '-c', '''with open("@0@/mesonconfig.py", "w") as f:
@@ -21,6 +21,34 @@ endif
 
 pypluginsdir = [join_paths (meson.project_build_root(), 'plugin'), meson.current_source_dir()]
 
+gst_deps_defs = [
+  ['gstreamer', ['gstreamer', 'gst_dep'], 'libgst'],
+  ['gstreamer-app', ['gst-plugins-base', 'app_dep'], 'gstapp'],
+  ['gstreamer-audio', ['gst-plugins-base', 'audio_dep'], 'gstaudio'],
+  ['gstreamer-base', ['gstreamer', 'gst_base_dep'], 'gst_base'],
+  ['gstreamer-controller', ['gstreamer', 'gst_controller_dep'], 'gst_controller'],
+  ['gstreamer-fft', ['gst-plugins-base', 'fft_dep'], 'gstfft'],
+  ['gstreamer-net', ['gstreamer', 'gst_net_dep'], 'gst_net'],
+  ['gstreamer-pbutils', ['gst-plugins-base', 'pbutils_dep'], 'pbutils'],
+  ['gstreamer-riff', ['gst-plugins-base', 'riff_dep'], 'gstriff'],
+  ['gstreamer-rtp', ['gst-plugins-base', 'rtp_dep'], 'gst_rtp'],
+  ['gstreamer-rtsp', ['gst-plugins-base', 'rtsp_dep'], 'gst_rtsp'],
+  ['gstreamer-sdp', ['gst-plugins-base', 'sdp_dep'], 'gstsdp'],
+  ['gstreamer-tag', ['gst-plugins-base', 'tag_dep'], 'gsttag'],
+  ['gstreamer-video', ['gst-plugins-base', 'video_dep'], 'gstvideo'],
+  ['gstreamer-webrtc', ['gst-plugins-bad', 'gstwebrtc_dep'], 'gstwebrtc'],
+  ['gstreamer-rtsp-server', ['gst-rtsp-server', 'gst_rtsp_server_dep'], 'gst_rtsp_server'],
+]
+
+apiversion = '1.0'
+gst_required_version = '>=@0@'.format(meson.project_version())
+gst_deps = []
+
+foreach dep: gst_deps_defs
+  gst_deps += [dependency(dep.get(0) + '-' + apiversion, version: gst_required_version,
+    fallback: dep.get(1))]
+endforeach
+
 foreach i: tests
     test_name = i.get(0)
     env = environment()
@@ -30,5 +58,47 @@ foreach i: tests
         'gst-python@' + meson.project_build_root())
     env.set('GST_PLUGIN_PATH_1_0', meson.global_build_root(), pluginsdirs + pypluginsdir)
     env.set('GST_REGISTRY', join_paths(meson.current_build_dir(), '@0@.registry'.format(test_name)))
+
+    l = 0
+    testsenv_ld_library_path = []
+    foreach dep: gst_deps
+        if dep.type_name() == 'pkgconfig'
+            testsenv_ld_library_path += [dep.get_variable('libdir')]
+        else
+            depdef = gst_deps_defs[l][1]
+            libname = gst_deps_defs[l].get(2, '')
+            if libname != ''
+                proj = subproject(depdef[0])
+                libpath = proj.get_variable(libname).full_path().split('/')
+                dirname = ''
+                j = 1
+                foreach comp: libpath
+                    if j < libpath.length()
+                        dirname += '/' + comp
+                    endif
+                    j += 1
+                endforeach
+                testsenv_ld_library_path += [dirname]
+            endif
+        endif
+        l += 1
+    endforeach
+
+    foreach j: i.get(2, [])
+      path = meson.project_build_root() / '..' / j
+      env.append('GI_TYPELIB_PATH', path)
+
+      if build_machine.system() == 'windows'
+	      env.append('PATH', path)
+	      env.append('PATH', testsenv_ld_library_path)
+      elif build_machine.system() == 'linux'
+	      env.append('LD_LIBRARY_PATH', path)
+	      env.append('LD_LIBRARY_PATH', testsenv_ld_library_path)
+      else
+	      env.append('DYLD_LIBRARY_PATH', path)
+	      env.append('DYLD_LIBRARY_PATH', testsenv_ld_library_path)
+      endif
+    endforeach
+
     test(test_name, python, args: [runtests, i.get(1)], env: env)
 endforeach