Fix/35

lib/CBDShapeExtractor.ts

@@ -6,6 +6,7 @@ import {RdfStore} from "rdf-stores";
 import {Quad, Term} from "@rdfjs/types";
 import debug from "debug";
 import {ShapesGraph} from "./ShapesGraph";
+import { Writer } from "n3";
 
 const log = debug("extract-cbd-shape");
 
@@ -420,7 +421,7 @@ class ExtractInstance {
     * @param id starting subject
     * @param graphsToIgnore
     */
-   private async CBD(
+   private CBD(
       id: Term,
       result: Quad[],
       extractedStar: CbdExtracted,
@@ -444,7 +445,7 @@ class ExtractInstance {
             q.object.termType === "BlankNode" &&
             !extractedStar.cbdExtracted(q.object)
          ) {
-            await this.CBD(q.object, result, next, graphsToIgnore);
+            this.CBD(q.object, result, next, graphsToIgnore);
          }
       }
    }

tests/01 - fetching a shacl shape/extraction.test.ts

@@ -74,6 +74,6 @@ describe("Check whether we can successfully extract a SHACL shape", async () =>
           writer.end((err, res) => {console.log(res);});*/
 
       //TODO: Didn’t yet calculate how many actually should be returned here... Just assumed this number is correct...
-      assert.equal(result.length, 264); // Just testing whether there are quads being returned now
+      assert.equal(result.length, 273); // Just testing whether there are quads being returned now
    });
 });

tests/06 - shapes and named graphs/extraction.test.ts

@@ -36,6 +36,72 @@ describe("Check whether paths trigger the right extraction process", function ()
     );
     // It should only have 2 quads: one outside of the named graph, and one in the named graph that is not part of the other named graphs
     assert.equal(result.length, 2);
+
   });
+});
 
+describe("regression tests", () => {
+  it("blank nodes break extraction 1", async () => {
+    const quadsString = `
+<https://example.com/ns#testing> a <http://schema.org/Movie>;
+    <http://schema.org/actor> _:b1_n3-0, _:b1_n3-1, _:b1_n3-2, _:b1_n3-3;
+    <http://purl.org/dc/terms/isVersionOf> <http://yikes.dog/namespaces/movies/Alien>;
+    <http://www.w3.org/ns/prov#generatedAtTime> "2024-12-03T13:10:42.331Z"^^<http://www.w3.org/2001/XMLSchema#dateTime>.
+`;
+    const quads = new Parser().parse(quadsString);
+    const extractor = new CBDShapeExtractor();
+    const store = RdfStore.createDefault();
+    quads.forEach(x => store.addQuad(x));
+    const extracted = await extractor.extract(store, new NamedNode("https://example.com/ns#testing"));
+
+    assert.equal(extracted.length, 7);
+  });
+
+  it("blank nodes break extraction 2", async () => {
+    const quadsString = `
+<https://example.com/ns#testing> a <http://schema.org/Movie>;
+    <http://schema.org/actor> _:b1_n3-0, _:b1_n3-1, _:b1_n3-2;
+    <http://purl.org/dc/terms/isVersionOf> <http://yikes.dog/namespaces/movies/Alien>;
+    <http://www.w3.org/ns/prov#generatedAtTime> "2024-12-03T13:10:42.331Z"^^<http://www.w3.org/2001/XMLSchema#dateTime>.
+`;
+    const quads = new Parser().parse(quadsString);
+    const extractor = new CBDShapeExtractor();
+    const store = RdfStore.createDefault();
+    quads.forEach(x => store.addQuad(x));
+    const extracted = await extractor.extract(store, new NamedNode("https://example.com/ns#testing"));
+
+    assert.equal(extracted.length, 6);
+  });
+
+  it("blank nodes break extraction 3", async () => {
+    const quadsString = `
+<https://example.com/ns#testing> a <http://schema.org/Movie>;
+    <http://purl.org/dc/terms/isVersionOf> <http://yikes.dog/namespaces/movies/Alien>;
+    <http://www.w3.org/ns/prov#generatedAtTime> "2024-12-03T13:10:42.331Z"^^<http://www.w3.org/2001/XMLSchema#dateTime>;
+    <http://schema.org/actor> _:b1_n3-0, _:b1_n3-1, _:b1_n3-2.
+`;
+    const quads = new Parser().parse(quadsString);
+    const extractor = new CBDShapeExtractor();
+    const store = RdfStore.createDefault();
+    quads.forEach(x => store.addQuad(x));
+    const extracted = await extractor.extract(store, new NamedNode("https://example.com/ns#testing"));
+
+    assert.equal(extracted.length, 6);
+  });
+
+  it("blank nodes break extraction 4", async () => {
+    const quadsString = `
+<https://example.com/ns#testing> a <http://schema.org/Movie>;
+    <http://purl.org/dc/terms/isVersionOf> <http://yikes.dog/namespaces/movies/Alien>;
+    <http://www.w3.org/ns/prov#generatedAtTime> "2024-12-03T13:10:42.331Z"^^<http://www.w3.org/2001/XMLSchema#dateTime>;
+    <http://schema.org/actor> _:b1_n3-0, _:b1_n3-1, _:b1_n3-2, _:b1_n3-3.
+`;
+    const quads = new Parser().parse(quadsString);
+    const extractor = new CBDShapeExtractor();
+    const store = RdfStore.createDefault();
+    quads.forEach(x => store.addQuad(x));
+    const extracted = await extractor.extract(store, new NamedNode("https://example.com/ns#testing"));
+
+    assert.equal(extracted.length, 7);
+  });
 });