Tests: added tests for "path" option in Python application.

test/test_python_application.py

@@ -1,4 +1,5 @@
 import grp
+import os
 import pwd
 import re
 import time
@@ -790,6 +791,42 @@ last line: 987654321
 
         assert self.get()['status'] not in [200, 204], 'callable response inv'
 
+    def test_python_application_path(self):
+        self.load('path')
+
+        def set_path(path):
+            assert 'success' in self.conf(path, 'applications/path/path')
+
+        def get_path():
+            return self.get()['body'].split(os.pathsep)
+
+        default_path = self.conf_get('/config/applications/path/path')
+        assert 'success' in self.conf(
+            {"PYTHONPATH": default_path},
+            '/config/applications/path/environment',
+        )
+
+        self.conf_delete('/config/applications/path/path')
+        sys_path = get_path()
+
+        set_path('"/blah"')
+        assert ['/blah', *sys_path] == get_path(), 'check path'
+
+        set_path('"/new"')
+        assert ['/new', *sys_path] == get_path(), 'check path update'
+
+        set_path('["/blah1", "/blah2"]')
+        assert ['/blah1', '/blah2', *sys_path] == get_path(), 'check path array'
+
+    def test_python_application_path_invalid(self):
+        self.load('path')
+
+        def check_path(path):
+            assert 'error' in self.conf(path, 'applications/path/path')
+
+        check_path('{}')
+        check_path('["/blah", []]')
+
     def test_python_application_threads(self):
         self.load('threads', threads=4)