Sketched unit test for issue #6

squire/src/test/java/uk/ac/open/kmi/squire/core4/TestClassSignatureGeneralizer.java

@@ -3,6 +3,7 @@
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.fail;
 
 import java.util.Iterator;
 import java.util.Map;
@@ -23,6 +24,7 @@
 import org.apache.jena.vocabulary.DCTerms;
 import org.apache.jena.vocabulary.RDF;
 import org.apache.jena.vocabulary.RDFS;
+import org.apache.jena.vocabulary.SKOS;
 import org.junit.Before;
 import org.junit.BeforeClass;
 import org.junit.Test;
@@ -216,6 +218,26 @@ public void oneTypePresent() throws Exception {
 		assertFalse(find(q1, var_s, rdf_type, type_var));
 	}
 
+	/**
+	 * One type not appearing in the target dataset; two properties, both used in
+	 * the target dataset, also for same type, but neither for the type we need in
+	 * the recommendation. In other words, the ideal query to recommend has
+	 * <em>nothing</em> in common with the original one, except for the rdf:type
+	 * property.
+	 * 
+	 * I have no idea what a generalized query that satisfies this case would look
+	 * like.
+	 */
+	@Test
+	public void twoPropertiesPresentButNeitherForOptimalType() throws Exception {
+		String q = "SELECT DISTINCT ?id ?name WHERE {"
+				+ " ?s a <http://statistics.data.gov.uk/def/geography/LocalEducationAuthority>" + " ; <"
+				+ SKOS.notation.getURI() + "> ?id" + " ; <" + SKOS.prefLabel.getURI() + "> ?name" + " }";
+		Set<Query> qG = _op.generalize(QueryFactory.create(q));
+		assertEquals(1, qG.size());
+		fail("Unit test NIY - don't know yet what general query we should require.");
+	}
+
 	/**
 	 * One type not appearing in the target dataset; two properties, both used in
 	 * the target dataset but never for the same type.

squire/src/test/resources/signatures2.json

@@ -28,6 +28,15 @@
 		},
 		"http://data.open.ac.uk/openlearn/ontology/Podcast": {
 
+		},
+		"http://statistics.data.gov.uk/def/geography/LocalEducationAuthority": {
+			"dps": [
+				"http://www.w3.org/2004/02/skos/core#notation",
+				"http://www.w3.org/2004/02/skos/core#prefLabel"
+			],
+			"ops": [
+				"http://statistics.data.gov.uk/def/geography/coverage"
+			]
 		}
 	},
 	"http://example.org/dataset/2": {
@@ -62,7 +71,23 @@
 			"dps": [
 				"http://www.w3.org/2000/01/rdf-schema#label"
 			],
-			"ops": ["http://xmlns.com/foaf/0.1/depiction"]
+			"ops": [
+				"http://xmlns.com/foaf/0.1/depiction"
+			]
+		},
+		"http://schema.org/School": {
+			"dps": [
+				"http://gov.genealogy.net/ontology.owl#hasDenomination",
+				"http://schema.org/legalName",
+				"http://schema.stapferenquete.ch/schoolType",
+				"https://gont.ch/id"
+			]
+		},
+		"http://example.org/BadRecommendation/1": {
+			"dps": [
+				"http://www.w3.org/2004/02/skos/core#notation",
+				"http://www.w3.org/2004/02/skos/core#prefLabel"
+			]
 		}
 	}
 }