Tests: prerequisites checking reworked.

Prerequisites check moved to the module level to simplify class structure.
Discovery and prerequisites checks functions moved to the separate files.
Introduced "require" fixture to provide per-test requirements check.

1 files changed, 4 insertions, 5 deletions

diff --git a/test/test_asgi_lifespan.py b/test/test_asgi_lifespan.py
index d3ac1721..0d0cb162 100644
--- a/test/test_asgi_lifespan.py
+++ b/test/test_asgi_lifespan.py
@@ -5,13 +5,12 @@ from packaging import version
 from unit.applications.lang.python import TestApplicationPython
 from unit.option import option
 
+prerequisites = {
+    'modules': {'python': lambda v: version.parse(v) >= version.parse('3.5')}
+}
+
 
 class TestASGILifespan(TestApplicationPython):
-    prerequisites = {
-        'modules': {
-            'python': lambda v: version.parse(v) >= version.parse('3.5')
-        }
-    }
     load_module = 'asgi'
 
     def setup_cookies(self, prefix):