added alternative to 0000

test-cases/README.md

@@ -4,7 +4,9 @@ Each test case is within a subfolder of this folder.
 
 If no output.nq file is present, an error is expected.
 
-All function descriptions are locally available under [functions.ttl](./functions.ttl)
+All function descriptions are locally available under [functions.ttl](./functions.ttl).
+
+Some test cases are under discussion, proposed alternatives are noted via a suffix `b`. 
 
 ## Open issues for which there are no test cases
 
@@ -34,6 +36,7 @@ All function descriptions are locally available under [functions.ttl](./function
 | new_id |                              title                              |                                                            purpose                                                            | data format | error expected? |    input file 1   |
 |:------:|:---------------------------------------------------------------:|:-----------------------------------------------------------------------------------------------------------------------------:|:-----------:|:---------------:|:-----------------:|
 | 0000   | Function on object, 0 parameters                                | Tests (1) if a function without parameters can be used (FnO) (2) if a function on an object map can be used (Term)            | CSV         |      FALSE      | student.csv       |
+| 0000b  | Function on object, 0 parameters (replaces 0000)                | Tests (1) if a function without parameters can be used (FnO) (2) if a function on an object map can be used (Term)            | CSV         |      FALSE      | student.csv       |
 | 0000   | Function on object, default termType                            | Tests if the output of the function is assigned the correct termType by default                                               |             |                 |                   |
 | 0001   | Function on object, 1 reference parameter                       | Tests: (1) if a function with one parameter can be used, (FnO) (2) a reference parameter can be used (Term)                   | CSV         |      FALSE      | student.csv       |
 | 0001   | Function using non-constant shortcut property parameter         | Tests that a non-constant FNML Parameter map also works                                                                       | CSV         |      FALSE      | student_param.csv |

test-cases/RMLFNOTC0000b-CSV/mapping.ttl

@@ -0,0 +1,31 @@
+@prefix foaf: <http://xmlns.com/foaf/0.1/> .
+@prefix ex: <http://example.com/> .
+@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
+@prefix rml: <http://w3id.org/rml/> .
+@prefix fno: <https://w3id.org/function/ontology#> .
+@prefix fns: <http://example.com/functions/> .
+@prefix grel: <http://users.ugent.be/~bjdmeest/function/grel.ttl#> .
+@prefix idlab-fn: <http://example.com/idlab/function/> .
+
+@base <http://example.com/base/> .
+
+<TriplesMap1>
+    rml:logicalSource [
+        rml:source [ a rml:RelativePathSource;
+          rml:root rml:MappingDirectory;
+          rml:path "student.csv"
+        ];
+        rml:referenceFormulation rml:CSV
+    ];
+    rml:subjectMap [
+        rml:template "http://example.com/{Name}"
+    ];
+    rml:predicateObjectMap [
+        rml:predicate foaf:name;
+        rml:objectMap [
+            rml:functionExecution <#Execution> ;
+        ]
+    ] .
+
+<#Execution>
+    rml:function fns:helloworld .

test-cases/RMLFNOTC0000b-CSV/output.nq

@@ -0,0 +1 @@
+<http://example.com/Venus> <http://xmlns.com/foaf/0.1/name> "Hello World!" .

test-cases/RMLFNOTC0000b-CSV/student.csv

@@ -0,0 +1,2 @@
+Id,Name,Comment,Class
+1,Venus,A&B,A

test-cases/functions.ttl

@@ -1,5 +1,6 @@
 @prefix dcterms: <http://purl.org/dc/terms/> .
 @prefix fno:     <https://w3id.org/function/ontology#> .
+@prefix fns:     <http://example.com/functions/> .
 @prefix grel:    <http://users.ugent.be/~bjdmeest/function/grel.ttl#> .
 @prefix rdf:     <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
 @prefix rdfs:    <http://www.w3.org/2000/01/rdf-schema#> .
@@ -50,3 +51,17 @@ grel:param_replace
     fno:predicate grel:p_string_replace ;
     fno:type      xsd:string ;
     fno:required  "true"^^xsd:boolean .
+
+fns:helloworld
+   a                   fno:Function ;
+   fno:name            "hello world" ;
+   dcterms:description "The hello world function has no parameters and always returns the string 'Hello World!'" ;
+   fno:expects         ( ) ;
+   fno:returns         ( fns:stringOutput ) .
+
+fns:stringOutput
+    a             fno:Output ;
+    fno:name      "output string" ;
+    rdfs:label    "output string" ;
+    fno:predicate fns:hasStringOutput ;
+    fno:type      xsd:string .