chore: test regex behavior

__test_utils__/util.ts

@@ -5,6 +5,7 @@ import { DataFactory, Parser, Store } from 'n3';
 import { data, dataStar, query, queryAll, result } from '../data/socrates';
 import { n3reasoner } from '../dist';
 import { data as blogicData, result as blogicResult } from '../data/blogic';
+import { data as regexData, result as regexResult } from '../data/regex';
 
 const parser = new Parser({ format: 'text/n3' });
 // Workaround for https://github.com/rdfjs/N3.js/issues/324
@@ -17,6 +18,8 @@ export const dataQuads = parser.parse(data);
 export const dataStarQuads = parser.parse(dataStar);
 export const resultQuads = parser.parse(result);
 export const resultBlogicQuads = parser.parse(blogicResult);
+export const regexQuads = parser.parse(regexData);
+export const regexResultQuads = parser.parse(regexResult);
 
 export function mockFetch(...args: Parameters<typeof fetch>): ReturnType<typeof fetch> {
   switch (args[0]) {
@@ -175,6 +178,12 @@ export function universalTests() {
       expect(store.size).toEqual(2 + 4);
     });
 
+    it('should execute the n3reasoner on a query string requiring regex', 
+      () => expect(n3reasoner(regexData)).resolves.toEqual(regexResult));
+
+    it('should execute the n3reasoner on a query string requiring regex using RDFJS quads',
+      () => expect(n3reasoner(regexQuads)).resolves.toBeRdfIsomorphic(regexResultQuads));
+
     it('should reject n3reasoner on invalid query', async () => {
       const res = n3reasoner(dataQuads, 'invalid');
 

data/regex.ts

@@ -0,0 +1,15 @@
+export const data = `
+@prefix : <urn:example:> .
+@prefix string: <http://www.w3.org/2000/10/swap/string#>.
+
+{"abracadabra" string:matches "(a|b|r|c|d)+"} => {:test1 :is :ok}.
+{"2023" string:matches "[0-9]{4}"} => {:test2 :is :ok}.
+`;
+
+export const result = `
+@prefix : <urn:example:>.
+@prefix string: <http://www.w3.org/2000/10/swap/string#>.
+
+<urn:example:test1> <urn:example:is> <urn:example:ok>.
+<urn:example:test2> <urn:example:is> <urn:example:ok>.
+`;