kg-construct · jduchateau · Aug 17, 2026
diff --git a/test-cases/RMLTC0032a/README.md b/test-cases/RMLTC0032a/README.md
@@ -0,0 +1,33 @@
+## RMLTC0032a
+
+**Title**: "Constant mapping can omit logical source"
+
+**Description**: "Test a Triples Map with only constant expressions can omit logical source"
+
+**Default Base IRI**: http://example.com/
+
+**Error expected?** No
+
+**Mapping**
+```
+@prefix rml: <http://w3id.org/rml/>.
+@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#>.
+
+<http://example.com/base/TriplesMap1> a rml:TriplesMap;
+  rml:subjectMap [ rml:constant <http://example.com/Gaston> ];
+  rml:predicateObjectMap [
+    rml:predicate rdfs:label;
+    rml:objectMap [
+      rml:constant "Gaston Lagaffe";
+      rml:languageMap [ rml:constant "fr-BE" ];
+    ];
+  ].
+
+
+```
+
+**Output**
+```
+<http://example.com/Gaston> <http://www.w3.org/2000/01/rdf-schema#label> "Gaston Lagaffe"@fr-BE .
+```
+
diff --git a/test-cases/RMLTC0032a/mapping.ttl b/test-cases/RMLTC0032a/mapping.ttl
@@ -0,0 +1,13 @@
+@prefix rml: <http://w3id.org/rml/>.
+@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#>.
+
+<http://example.com/base/TriplesMap1> a rml:TriplesMap;
+  rml:subjectMap [ rml:constant <http://example.com/Gaston> ];
+  rml:predicateObjectMap [
+    rml:predicate rdfs:label;
+    rml:objectMap [
+      rml:constant "Gaston Lagaffe";
+      rml:languageMap [ rml:constant "fr-BE" ];
+    ];
+  ].
+
diff --git a/test-cases/RMLTC0032a/output.nq b/test-cases/RMLTC0032a/output.nq
@@ -0,0 +1 @@
+<http://example.com/Gaston> <http://www.w3.org/2000/01/rdf-schema#label> "Gaston Lagaffe"@fr-BE .
diff --git a/test-cases/RMLTC0032b/README.md b/test-cases/RMLTC0032b/README.md
@@ -0,0 +1,33 @@
+## RMLTC0032b
+
+**Title**: "Constant template mapping can omit logical source"
+
+**Description**: "Test a Triples Map with only constant template and constant expressions can omit logical source"
+
+**Default Base IRI**: http://example.com/
+
+**Error expected?** No
+
+**Mapping**
+```
+@prefix rml: <http://w3id.org/rml/>.
+@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#>.
+
+<http://example.com/base/TriplesMap1> a rml:TriplesMap;
+  rml:subjectMap [ rml:template "http://example.com/Gaston" ];
+  rml:predicateObjectMap [
+    rml:predicate rdfs:label;
+    rml:objectMap [
+      rml:constant "Gaston Lagaffe";
+      rml:languageMap [ rml:constant "fr-BE" ];
+    ];
+  ].
+
+
+```
+
+**Output**
+```
+<http://example.com/Gaston> <http://www.w3.org/2000/01/rdf-schema#label> "Gaston Lagaffe"@fr-BE .
+```
+
diff --git a/test-cases/RMLTC0032b/mapping.ttl b/test-cases/RMLTC0032b/mapping.ttl
@@ -0,0 +1,13 @@
+@prefix rml: <http://w3id.org/rml/>.
+@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#>.
+
+<http://example.com/base/TriplesMap1> a rml:TriplesMap;
+  rml:subjectMap [ rml:template "http://example.com/Gaston" ];
+  rml:predicateObjectMap [
+    rml:predicate rdfs:label;
+    rml:objectMap [
+      rml:constant "Gaston Lagaffe";
+      rml:languageMap [ rml:constant "fr-BE" ];
+    ];
+  ].
+
diff --git a/test-cases/RMLTC0032b/output.nq b/test-cases/RMLTC0032b/output.nq
@@ -0,0 +1 @@
+<http://example.com/Gaston> <http://www.w3.org/2000/01/rdf-schema#label> "Gaston Lagaffe"@fr-BE .
diff --git a/test-cases/RMLTC0032c/README.md b/test-cases/RMLTC0032c/README.md
@@ -0,0 +1,28 @@
+## RMLTC0032c
+
+**Title**: "Non constant mapping, while omitting logical source"
+
+**Description**: "Test a Triples Map with reference expressions cannot omit logical source"
+
+**Default Base IRI**: http://example.com/
+
+**Error expected?** Yes
+
+**Mapping**
+```
+@prefix rml: <http://w3id.org/rml/>.
+@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#>.
+
+<http://example.com/base/TriplesMap1> a rml:TriplesMap;
+  rml:subjectMap [ rml:template "http://example.com/{name}" ];
+  rml:predicateObjectMap [
+    rml:predicate rdfs:label;
+    rml:objectMap [
+      rml:reference "name";
+      rml:languageMap [ rml:constant "fr-BE" ];
+    ];
+  ].
+
+
+```
+
diff --git a/test-cases/RMLTC0032c/mapping.ttl b/test-cases/RMLTC0032c/mapping.ttl
@@ -0,0 +1,13 @@
+@prefix rml: <http://w3id.org/rml/>.
+@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#>.
+
+<http://example.com/base/TriplesMap1> a rml:TriplesMap;
+  rml:subjectMap [ rml:template "http://example.com/{name}" ];
+  rml:predicateObjectMap [
+    rml:predicate rdfs:label;
+    rml:objectMap [
+      rml:reference "name";
+      rml:languageMap [ rml:constant "fr-BE" ];
+    ];
+  ].
+
diff --git a/test-cases/RMLTC0032d/README.md b/test-cases/RMLTC0032d/README.md
@@ -0,0 +1,33 @@
+## RMLTC0032d
+
+**Title**: "Blank node subject mapping can omit logical source"
+
+**Description**: "Test a Triples Map with a blank node subject map without expressions can omit logical source"
+
+**Default Base IRI**: http://example.com/
+
+**Error expected?** No
+
+**Mapping**
+```
+@prefix rml: <http://w3id.org/rml/>.
+@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#>.
+
+<http://example.com/base/TriplesMap1> a rml:TriplesMap;
+  rml:subjectMap [ rml:termType rml:BlankNode ];
+  rml:predicateObjectMap [
+    rml:predicate rdfs:label;
+    rml:objectMap [
+      rml:constant "Gaston Lagaffe";
+      rml:languageMap [ rml:constant "fr-BE" ];
+    ];
+  ].
+
+
+```
+
+**Output**
+```
+_:bn0 <http://www.w3.org/2000/01/rdf-schema#label> "Gaston Lagaffe"@fr-BE .
+```
+
diff --git a/test-cases/RMLTC0032d/mapping.ttl b/test-cases/RMLTC0032d/mapping.ttl
@@ -0,0 +1,13 @@
+@prefix rml: <http://w3id.org/rml/>.
+@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#>.
+
+<http://example.com/base/TriplesMap1> a rml:TriplesMap;
+  rml:subjectMap [ rml:termType rml:BlankNode ];
+  rml:predicateObjectMap [
+    rml:predicate rdfs:label;
+    rml:objectMap [
+      rml:constant "Gaston Lagaffe";
+      rml:languageMap [ rml:constant "fr-BE" ];
+    ];
+  ].
+
diff --git a/test-cases/RMLTC0032d/output.nq b/test-cases/RMLTC0032d/output.nq
@@ -0,0 +1 @@
+_:bn0 <http://www.w3.org/2000/01/rdf-schema#label> "Gaston Lagaffe"@fr-BE .
diff --git a/test-cases/descriptions.csv b/test-cases/descriptions.csv
@@ -74,4 +74,8 @@ RMLTC0030e-JSON,Generation of triples from a join with constant-valued childMap,
 RMLTC0030f-JSON,Generation of triples from a join with constant-valued childMap,Test that results from a join with constant-valued childMap
 RMLTC0031a-JSON,Generating of triples with a constant-valued language map,Test triples with a constant-valued language map
 RMLTC0031b-JSON,Generating of triples with a reference-valued language map,Test triples with a reference-valued language map
-RMLTC0031c-JSON,Generating of triples with a template-valued language map,Test triples with a template-valued language map
+RMLTC0031c-JSON,Generating of triples with a template-valued language map,Test triples with a template-valued language map
+RMLTC0032a,Constant mapping can omit logical source,Test a Triples Map with only constant expressions can omit logical source
+RMLTC0032b,Constant template mapping can omit logical source,Test a Triples Map with only constant template and constant expressions can omit logical source
+RMLTC0032c,"Non constant mapping, while omitting logical source",Test a Triples Map with reference expressions cannot omit logical source
+RMLTC0032d,Blank node subject mapping can omit logical source,Test a Triples Map with a blank node subject map without expressions can omit logical source
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1 @@
		<http://example.com/Gaston> <http://www.w3.org/2000/01/rdf-schema#label> "Gaston Lagaffe"@fr-BE .
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1 @@
		_:bn0 <http://www.w3.org/2000/01/rdf-schema#label> "Gaston Lagaffe"@fr-BE .