debugging nf-test input file not found

nf-test.config

@@ -1,5 +1,5 @@
 config {
-     // Location of nf-tests
+    // Location of nf-tests
     testsDir "."
 
     // nf-test directory used to create temporary files for each test

tests/handle_data.nf.test

@@ -0,0 +1,29 @@
+
+nextflow_workflow {
+
+    name "Test Workflow HANDLE_DATA"
+    script "../workflows/handle_data.nf"
+    workflow "HANDLE_DATA"
+
+    test("Test reproducibility of data handling") {
+
+        when {
+            workflow {
+                """
+                input[0] = Channel.fromPath(params.csv)
+                input[1] = Channel.fromPath(params.exp_conf)
+                input[2] = Channel.of("TESTING")
+                """
+            }
+        }
+
+        then {
+
+            assert workflow.success
+
+            with(workflow.out.data) {
+                assert size() == 2
+            }
+        }
+    }
+}