diff --git a/src/con_duct/suite/ls.py b/src/con_duct/suite/ls.py
index bec5745..bfee0f0 100644
--- a/src/con_duct/suite/ls.py
+++ b/src/con_duct/suite/ls.py
@@ -132,11 +132,16 @@ def pyout_ls(run_data_list):
             table(row)
 
 
-def ls(args: argparse.Namespace) -> int:
+def glob_info_files(pattern):
     info_files = []
-    for each in args.pattern:
+    for each in pattern:
         matches = glob.glob(f"{each}_info.json")
         info_files.extend(matches)
+    return info_files
+
+
+def ls(args: argparse.Namespace) -> int:
+    info_files = glob_info_files(args.pattern)
     run_data_raw = load_duct_runs(info_files)
     formatter = SummaryFormatter(enable_colors=args.colors)
     output_rows = process_run_data(run_data_raw, args.fields, formatter)
diff --git a/test/test_ls.py b/test/test_ls.py
index 4a13e0a..f874ae3 100644
--- a/test/test_ls.py
+++ b/test/test_ls.py
@@ -1,6 +1,15 @@
 import json
+import os
+import tempfile
 from unittest.mock import mock_open, patch
-from con_duct.suite.ls import _flatten_dict, _restrict_row, load_duct_runs
+from con_duct.suite.ls import (
+    SummaryFormatter,
+    _flatten_dict,
+    _restrict_row,
+    glob_info_files,
+    load_duct_runs,
+    process_run_data,
+)
 
 
 def test_load_duct_runs_sanity():
@@ -52,3 +61,91 @@ def test_restrict_row():
     assert "prefix" in result
     assert "exit_code" in result
     assert "extra" not in result
+
+
+def test_process_run_data():
+    run_data = [
+        {
+            "prefix": "/test/path",
+            "exit_code": 0,
+            "wall_clock_time": 0.12345678,
+        }
+    ]
+    formatter = SummaryFormatter(enable_colors=False)
+    result = process_run_data(run_data, ["wall_clock_time"], formatter)
+    assert isinstance(result, list)
+    assert result[0]["prefix"] == "/test/path"
+    assert "exit_code" not in result[0]
+    assert result[0]["wall_clock_time"] == "0.123 sec"
+
+
+def test_glob_info_files_sanity():
+    # Create mock files in the temp directory
+    with tempfile.TemporaryDirectory() as temp_dir:
+        filenames = ["file1_info.json", "file2_info.json", "other_file.txt"]
+        for filename in filenames:
+            open(os.path.join(temp_dir, filename), "w").close()
+
+        result = glob_info_files([os.path.join(temp_dir, "*")])
+
+    # Only JSON files with `_info.json` should be returned
+    assert sorted(result) == sorted(
+        [
+            os.path.join(temp_dir, "file1_info.json"),
+            os.path.join(temp_dir, "file2_info.json"),
+        ]
+    )
+
+
+def test_glob_info_files_specifics():
+    # Create mock files in the temp directory
+    with tempfile.TemporaryDirectory() as temp_dir:
+        filenames = ["file1_info.json", "file2_info.json", "file3_info.json"]
+        for filename in filenames:
+            open(os.path.join(temp_dir, filename), "w").close()
+
+        to_check = [os.path.join(temp_dir, pattern) for pattern in ["file1", "file2"]]
+        result = glob_info_files(to_check)
+
+    # No file3
+    assert sorted(result) == sorted(
+        [
+            os.path.join(temp_dir, "file1_info.json"),
+            os.path.join(temp_dir, "file2_info.json"),
+        ]
+    )
+
+
+def test_glob_info_files_pattern():
+    # Create mock files in the temp directory
+    with tempfile.TemporaryDirectory() as temp_dir:
+        filenames = [
+            "file1_info.json",
+            "file2_info.json",
+            "file3_info.json",
+            "notf_info.json",
+        ]
+        for filename in filenames:
+            open(os.path.join(temp_dir, filename), "w").close()
+
+        result = glob_info_files([os.path.join(temp_dir, "f*")])
+
+    # No file3
+    assert sorted(result) == sorted(
+        [
+            os.path.join(temp_dir, "file1_info.json"),
+            os.path.join(temp_dir, "file2_info.json"),
+            os.path.join(temp_dir, "file3_info.json"),
+        ]
+    )
+
+
+def test_glob_info_files_none():
+    # Create mock files in the temp directory
+    with tempfile.TemporaryDirectory() as temp_dir:
+        filenames = ["file1_info.json", "file2_info.json", "file3_info.json"]
+        for filename in filenames:
+            open(os.path.join(temp_dir, filename), "w").close()
+
+        result = glob_info_files([os.path.join(temp_dir, "fakefile")])
+    assert len(result) == 0