test: Add userspace tests

meson.build

@@ -23,6 +23,7 @@ add_languages('c', native: false, required: true)
 
 # Check if we're using a sane compiler.
 c_compiler = meson.get_compiler('c')
+python = import('python').find_installation('python3')
 
 # We require a compiler that supports the GNU C dialect.
 assert(c_compiler.has_define('__GNUC__'))
@@ -176,6 +177,10 @@ kernel = executable(
 
 subdir('boot')
 
+if kconfig.get('CONFIG_KTEST', 'n') == 'y'
+    subdir('tests')
+endif
+
 foreach name, v : modular_modules
     shared_library(
         name,