meson: hook up unit tests

meson.build

@@ -136,5 +136,4 @@ libsinc = include_directories('gst-libs')
 
 subdir('gst')
 subdir('ext')
-# TODO
-#subdir('tests')
+subdir('tests')

tests/check/getpluginsdir

@@ -0,0 +1,25 @@
+#!/usr/bin/env python3
+
+import os
+import sys
+import subprocess
+
+builddir = os.environ['MESON_BUILD_ROOT']
+
+res = ''
+args = sys.argv[1:]
+for i in range(0, len(args), 2):
+    project = args[i]
+    pkg_name = args[i + 1]
+    path = os.path.join(builddir, 'subprojects', project)
+    if os.path.exists(path):
+        res += ':' + path
+    else:
+        try:
+            res += ':' + subprocess.check_output(['pkg-config',
+                                                  '--variable=pluginsdir',
+                                                  pkg_name]).decode()
+        except subprocess.CalledProcessError:
+            exit(1)
+
+print(res.strip(":"))

tests/check/meson.build

@@ -0,0 +1,64 @@
+# name, condition when to skip the test and extra dependencies
+ugly_tests = [
+  [ 'elements/amrnbenc', not amrnb_dep.found() ],
+  [ 'elements/mpeg2dec', not mpeg2_dep.found() ],
+  [ 'elements/mpg123audiodec', not mpg123_dep.found() ],
+  [ 'elements/x264enc', not x264_dep.found() ],
+  [ 'elements/xingmux' ],
+  [ 'generic/states' ],
+  [ 'pipelines/lame', not lame_dep.found() ],
+]
+
+test_defines = [
+  '-UG_DISABLE_ASSERT',
+  '-UG_DISABLE_CAST_CHECKS',
+  '-DGST_CHECK_TEST_ENVIRONMENT_BEACON="GST_PLUGIN_LOADING_WHITELIST"',
+  '-DGST_TEST_FILES_PATH="' + meson.source_root() + '/tests/files"',
+  '-DGST_USE_UNSTABLE_API',
+]
+
+getpluginsdir = find_program('getpluginsdir')
+runcmd = run_command(getpluginsdir, 'gstreamer', 'gstreamer-1.0')
+if runcmd.returncode() == 0
+  plugins_dir = runcmd.stdout().strip()
+  message('Using GStreamer plug-ins in ' + plugins_dir + ' for unit tests')
+else
+  error('Could not determine GStreamer plugins directory for unit tests.')
+endif
+
+test_env = [
+  'GST_PLUGIN_SYSTEM_PATH_1_0=',
+  'GST_PLUGIN_PATH_1_0=' + meson.build_root() + '/gst:' + meson.build_root() + '/ext:' + meson.build_root() + '/sys:' + plugins_dir,
+  'GST_PLUGIN_LOADING_WHITELIST=gstreamer:gst-plugins-base:gst-plugins-good:gst-plugins-ugly@' + meson.build_root(),
+  'CK_DEFAULT_TIMEOUT=20',
+]
+
+test_deps = [gst_dep, gstbase_dep, gstcheck_dep, gstaudio_dep, gstapp_dep, gstfft_dep]
+
+libm = cc.find_library('m', required : false)
+
+# FIXME: valgrind_args: add suppressions $(top_srcdir)/common/gst.supp $(srcdir)/gst-plugins-ugly.supp
+
+foreach t : ugly_tests
+  test_name = t.get(0)
+  extra_deps = [ ]
+  if t.length() == 3
+    extra_deps = t.get(2)
+    skip_test = t.get(1)
+  elif t.length() == 2
+    skip_test = t.get(1)
+  else
+    skip_test = false
+  endif
+  if not skip_test
+    exe = executable(test_name, '@0@.c'.format(test_name),
+      include_directories : [configinc],
+      c_args : ['-DHAVE_CONFIG_H=1' ] + test_defines,
+      dependencies : [libm] + test_deps + extra_deps,
+    )
+    test(test_name, exe,
+      env: test_env + ['GST_REGISTRY=@0@/@1@.registry'.format(meson.current_build_dir(), test_name)],
+      timeout: 3 * 60
+    )
+  endif
+endforeach

tests/meson.build

@@ -0,0 +1 @@
+subdir('check')