Refactor source functional tests codenames and collision

securedrop/tests/functional/conftest.py

@@ -1,6 +1,6 @@
+import multiprocessing
 from contextlib import contextmanager
 from dataclasses import dataclass
-from multiprocessing.context import Process
 from pathlib import Path
 from typing import Generator
 import requests
@@ -100,9 +100,21 @@ def spawn_sd_servers(
         # Spawn the source and journalist web apps in separate processes
         source_port = _get_unused_port()
         journalist_port = _get_unused_port()
-        source_app_process = Process(target=_start_source_server, args=(source_port, config_to_use))
+
+        # Start the server subprocesses using the "spawn" method instead of "fork".
+        # This is needed for the config_to_use argument to work; if "fork" is used, the subprocess
+        # will inherit all the globals from the parent process, which will include the Python
+        # variables declared as "global" in the SD code base
+        # (example: see _DesignationGenerator.get_default()).
+        # This means the config_to_use will be ignored if these globals have already been
+        # initialized (for example by tests running before the code here).
+        mp_spawn_ctx = multiprocessing.get_context("spawn")
+
+        source_app_process = mp_spawn_ctx.Process(  # type: ignore
+            target=_start_source_server, args=(source_port, config_to_use)
+        )
         source_app_process.start()
-        journalist_app_process = Process(
+        journalist_app_process = mp_spawn_ctx.Process(  # type: ignore
             target=_start_journalist_server, args=(journalist_port, config_to_use)
         )
         journalist_app_process.start()

securedrop/tests/functional/factories.py

@@ -36,8 +36,8 @@ def create(
     ) -> SecureDropConfig:
         """Create a securedrop config suitable for the unit tests.
 
-        It will automatically create an initialized DB at SECUREDROP_DATA_ROOT/db.sqlite which will
-        be set as the DATABASE_FILE.
+        It will erase any existing file within SECUREDROP_DATA_ROOT and then create an initialized
+        DB at SECUREDROP_DATA_ROOT/db.sqlite which will be set as the DATABASE_FILE.
         """
         # Clear the data root directory
         if SECUREDROP_DATA_ROOT.exists():

securedrop/tests/functional/source_navigation_steps.py

@@ -127,14 +127,6 @@ def submit_page_loaded():
 
         self.wait_for(submit_page_loaded)
 
-    def _source_continues_to_submit_page_with_colliding_journalist_designation(self):
-        self.safe_click_by_id("continue-button")
-
-        self.wait_for(lambda: self.driver.find_element_by_css_selector(".error"))
-        flash_error = self.driver.find_element_by_css_selector(".error")
-        assert "There was a temporary problem creating your account. Please try again." \
-               == flash_error.text
-
     def _source_submits_a_file(self):
         with tempfile.NamedTemporaryFile() as file:
             file.write(self.secret_message.encode("utf-8"))