diff --git a/cluster_tools/cluster_tools/schedulers/slurm.py b/cluster_tools/cluster_tools/schedulers/slurm.py
index 2990e9bdf..a151707c2 100644
--- a/cluster_tools/cluster_tools/schedulers/slurm.py
+++ b/cluster_tools/cluster_tools/schedulers/slurm.py
@@ -420,10 +420,10 @@ def investigate_failed_job(
         # resource limit.
 
         def parse_key_value_pairs(
-            pair_delimiter: str, key_value_delimiter: str
+            text: str, pair_delimiter: str, key_value_delimiter: str
         ) -> Dict[str, str]:
             properties = {}
-            for key_value_pair in stdout.split(pair_delimiter):
+            for key_value_pair in text.split(pair_delimiter):
                 if key_value_delimiter not in key_value_pair:
                     continue
                 key, value = key_value_pair.split(key_value_delimiter, 1)
@@ -436,11 +436,11 @@ def parse_key_value_pairs(
 
         if exit_code == 0:
             # Parse stdout into a key-value object
-            properties = parse_key_value_pairs(" ", "=")
+            properties = parse_key_value_pairs(stdout, " ", "=")
 
-            investigation = self._investigate_time_limit(properties)
-            if investigation:
-                return investigation
+            time_limit_investigation = self._investigate_time_limit(properties)
+            if time_limit_investigation:
+                return time_limit_investigation
 
         # Call `seff job_id` which should return some output including a line,
         # such as: "Memory Efficiency: 25019.18% of 1.00 GB"
@@ -449,11 +449,11 @@ def parse_key_value_pairs(
             return None
 
         # Parse stdout into a key-value object
-        properties = parse_key_value_pairs("\n", ":")
+        properties = parse_key_value_pairs(stdout, "\n", ":")
 
-        investigation = self._investigate_memory_consumption(properties)
-        if investigation:
-            return investigation
+        memory_limit_investigation = self._investigate_memory_consumption(properties)
+        if memory_limit_investigation:
+            return memory_limit_investigation
 
         return self._investigate_exit_code(properties)
 
diff --git a/cluster_tools/tests/test_slurm.py b/cluster_tools/tests/test_slurm.py
index c90cea866..6e2185695 100644
--- a/cluster_tools/tests/test_slurm.py
+++ b/cluster_tools/tests/test_slurm.py
@@ -44,6 +44,12 @@ def expect_fork() -> bool:
     return True
 
 
+def search_and_replace_in_slurm_config(search_string: str, replace_string: str) -> None:
+    chcall(
+        f"sed -ci 's/{search_string}/{replace_string}/g' /etc/slurm/slurm.conf && scontrol reconfigure"
+    )
+
+
 def test_map_with_spawn() -> None:
     with cluster_tools.get_executor(
         "slurm", max_workers=5, start_method="spawn"
@@ -291,9 +297,7 @@ def test_slurm_max_array_size() -> None:
 
             assert all(array_size <= max_array_size for array_size in occurences)
     finally:
-        chcall(
-            f"sed -ci 's/{command}//g' /etc/slurm/slurm.conf && scontrol reconfigure"
-        )
+        search_and_replace_in_slurm_config(command, "")
         reset_max_array_size = executor.get_max_array_size()
         assert reset_max_array_size == original_max_array_size
 
@@ -331,8 +335,8 @@ def test_slurm_memory_limit() -> None:
 
     try:
         # Increase the frequency at which slurm checks whether a job uses too much memory
-        chcall(
-            f"sed -ci 's/{original_gather_frequency_config}/{new_gather_frequency_config}/g' /etc/slurm/slurm.conf && scontrol reconfigure"
+        search_and_replace_in_slurm_config(
+            original_gather_frequency_config, new_gather_frequency_config
         )
 
         with executor:
@@ -350,8 +354,8 @@ def test_slurm_memory_limit() -> None:
                 for fut in futures
             )
     finally:
-        chcall(
-            f"sed -ci 's/{new_gather_frequency_config}/{original_gather_frequency_config}/g' /etc/slurm/slurm.conf && scontrol reconfigure"
+        search_and_replace_in_slurm_config(
+            new_gather_frequency_config, original_gather_frequency_config
         )
 
 
diff --git a/cluster_tools/typecheck.sh b/cluster_tools/typecheck.sh
index 100b21797..4b3fa785f 100755
--- a/cluster_tools/typecheck.sh
+++ b/cluster_tools/typecheck.sh
@@ -1,8 +1,6 @@
 #!/usr/bin/env bash
 set -eEuo pipefail
 
-echo "typecheck.sh is not available for cluster_tools yet"
-
 echo "Typecheck cluster_tools..."
 poetry run python -m mypy -p cluster_tools