Fixed missing generated seed input to pre_config hook.

docs/news.d/1178.bug.rst

@@ -0,0 +1 @@
+Fixed missing generated seed input to pre_config hook.

tests/acceptance/artificial/vhdl/run.py

@@ -174,6 +174,7 @@ def pre_config(seed):
             print(f"pre_config seed: {seed}")
             if not expected_seed:
                 assert seed != "0123456789abcdef"
+                assert seed is not None
             else:
                 assert seed == expected_seed
 
@@ -190,6 +191,8 @@ def pre_config(seed):
         tb.test("test_2").set_generic("expected_seed", "9a292b3679afd081")
         tb.test("test_1").set_pre_config(make_pre_config("7ac31eb89c4059f9"))
         tb.test("test_2").set_pre_config(make_pre_config("8b1cd665d806e572"))
+    elif args.seed is None:
+        tb.set_pre_config(make_pre_config())
 
 
 def configure_tb_vunit_pkg(vu):

tests/acceptance/test_artificial.py

@@ -107,6 +107,16 @@ def test_repeated_seed(self):
             ],
         )
 
+    def test_generated_seed(self):
+        self.check(self.artificial_run_vhdl, args=["lib.tb_seed*"])
+        check_report(
+            self.report_file,
+            [
+                ("passed", "lib.tb_seed.test_1"),
+                ("passed", "lib.tb_seed.test_2"),
+            ],
+        )
+
     def test_not_executing_package_init_on_package_addition(self):
         self.check(self.artificial_run_vhdl, args=["lib.tb_vunit_pkg.all"])
         check_report(

vunit/test/suites.py

@@ -211,7 +211,8 @@ def run(self, output_path, read_output):
         for name in self._test_cases:
             results[name] = FAILED
 
-        if not self._config.call_pre_config(output_path, self._simulator_if.output_path, self._seed):
+        seed = self.get_seed()
+        if not self._config.call_pre_config(output_path, self._simulator_if.output_path, seed):
             return results
 
         # Ensure result file exists