--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/env/lib/python3.7/site-packages/cwltool/tests/wf/wffail.cwl	Thu May 14 14:56:58 2020 -0400
@@ -0,0 +1,39 @@
+#!/usr/bin/env cwl-runner
+class: Workflow
+cwlVersion: v1.0
+inputs: []
+requirements:
+  StepInputExpressionRequirement: {}
+outputs:
+  out1:
+    type: File
+    outputSource: step1/out
+  out2:
+    type: File
+    outputSource: step2/out
+  out4:
+    type: File
+    outputSource: step4/out
+steps:
+  step1:
+    in:
+      r: {default: "1"}
+    out: [out]
+    run: echo.cwl
+  step2:
+    in:
+      r:  {default: "2"}
+    out: [out]
+    run: echo.cwl
+  step3:
+    in:
+      r:  {default: "5"}
+    out: [out]
+    run: echo.cwl
+  step4:
+    in:
+      r:
+        source: step3/out
+        valueFrom: $(inputs.r.basename)
+    out: [out]
+    run: echo.cwl