Simple test workflow

test_workflow/test_list.cwl

-class: Workflow
+class: CommandLineTool
 cwlVersion: v1.0
-id: test_list
-label: test_list
 $namespaces:
   sbg: 'https://www.sevenbridges.com/'
+id: test_input
+baseCommand:
+  - echo
 inputs:
-  - id: base_directory
-    type: Directory
-    'sbg:x': -516
-    'sbg:y': -208
-outputs:
-  - id: output
-    outputSource:
-      - directory_listing/output
+  - id: msin
     type: 'Directory[]'
-    'sbg:x': -60.39886474609375
-    'sbg:y': -77.5
-steps:
-  - id: directory_listing
-    in:
-      - id: base_directory
-        source: base_directory
-    out:
-      - id: output
-    run: ../steps/directory_listing.cwl
-    label: DirectoryListing
-    'sbg:x': -290.3984375
-    'sbg:y': -95.5
-requirements: []
+    inputBinding:
+      position: 0
+outputs: []
+label: test_input