Add test for wrong config types

tests/unit_tests/config/test_queue_config.py

@@ -8,12 +8,7 @@
 import pytest
 from hypothesis import given
 
-from ert.config import (
-    ConfigValidationError,
-    ErtConfig,
-    QueueConfig,
-    QueueSystem,
-)
+from ert.config import ConfigValidationError, ErtConfig, QueueConfig, QueueSystem
 from ert.job_queue import Driver
 
 
@@ -208,3 +203,20 @@ def test_initializing_empty_config_values(queue_system, queue_system_option):
     assert driver.get_option("MAX_RUNNING") == "0"
     for options in config_object.queue_config.queue_options[queue_system]:
         assert isinstance(options, tuple)
+
+
+@pytest.mark.usefixtures("use_tmpdir")
+@pytest.mark.parametrize(
+    "queue_system, queue_system_option",
+    [("LSF", "LSF_SERVER")],
+)
+def test_wrong_config_types(queue_system, queue_system_option):
+    filename = "config.ert"
+    with open(filename, "w", encoding="utf-8") as f:
+        f.write("NUM_REALIZATIONS 1\n")
+        f.write(f"QUEUE_SYSTEM {queue_system}\n")
+        f.write(f"QUEUE_OPTION {queue_system} {queue_system_option}\n")
+        f.write(f"QUEUE_OPTION {queue_system} SUBMIT_SLEEP nan\n")
+
+    with pytest.raises(ConfigValidationError, match="is not valid positive integer"):
+        ErtConfig.from_file(filename)