Test that expressionLib requirement of individual tool step overrides expressionLib of workflow.

Author: Peter Amstutz

v1.0/conformance_test_v1.0.yaml

@@ -856,3 +856,14 @@
   output: {}
   tool: v1.0/envvar2.cwl
   doc: Test $HOME and $TMPDIR are set correctly in Docker
+
+- job: v1.0/empty.json
+  output:
+    "out": {
+        "checksum": "sha1$7448d8798a4380162d4b56f9b452e2f6f9e24e7a",
+        "location": "whatever.txt",
+        "class": "File",
+        "size": 2
+    }
+  tool: "v1.0/js-expr-req-wf.cwl#wf"
+  doc: Test that expressionLib requirement of individual tool step overrides expressionLib of workflow.

v1.0/v1.0/js-expr-req-wf.cwl

@@ -0,0 +1,30 @@
+cwlVersion: v1.0
+$graph:
+  - id: tool
+    class: CommandLineTool
+    requirements:
+      InlineJavascriptRequirement:
+        expressionLib:
+          - "function foo() { return 2; }"
+    inputs: []
+    outputs:
+      out: stdout
+    arguments: [echo, $(foo())]
+    stdout: whatever.txt
+
+  - id: wf
+    class: Workflow
+    requirements:
+      InlineJavascriptRequirement:
+        expressionLib:
+          - "function bar() { return 1; }"
+    inputs: []
+    outputs:
+      out:
+        type: File
+        outputSource: tool/out
+    steps:
+      tool:
+        run: "#tool"
+        in: {}
+        out: [out]