Add integration test for mrs_info.

fsl_mrs/tests/test_scripts_mrs_info.py

+'''FSL-MRS test script
+
+Test the mrs_info script
+
+Copyright Will Clarke, University of Oxford, 2021'''
+
+# Imports
+import subprocess
+from pathlib import Path
+
+# Files
+testsPath = Path(__file__).parent
+processed = testsPath / 'testdata/fsl_mrs/metab.nii.gz'
+unprocessed = testsPath / 'testdata/fsl_mrs_preproc/metab_raw.nii.gz'
+
+
+def test_single_info(tmp_path):
+    subprocess.check_call(['mrs_info', str(processed)])
+
+
+def test_multi_info(tmp_path):
+    subprocess.check_call(['mrs_info', str(processed), str(unprocessed)])