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annotate src/tabulate.test.ts @ 88:ac7ad087d474

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graph view rewrites and fixes for the multi-subject table
author drewp@bigasterisk.com
date Tue, 30 Nov 2021 00:14:37 -0800
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1 import { groupByRdfType } from "./tabulate";
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2 import {
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3 Literal,
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4 DataFactory,
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5 Store,
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6 Prefixes,
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7 Parser,
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8 Quad,
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9 NamedNode,
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10 } from "n3";
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11 import Immutable from "immutable";
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12 const { namedNode } = DataFactory;
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13
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14 describe("equality", () => {
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15 test("investigation of https://github.com/rdfjs/N3.js/issues/265", () => {
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16 const x = namedNode("x");
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17 const x2 = namedNode("x");
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18 // (NamedNode.prototype as any).hashCode = () => 0;
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19 // expect((x as any).hashCode()).toEqual((x2 as any).hashCode())
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20 expect(x === x2).toBeFalsy();
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21 expect(x == x2).toBeFalsy();
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22 expect(x.equals(x2)).toBeTruthy();
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23 let imap = Immutable.Map();
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24 imap = imap.set(x, 11);
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25 imap = imap.set(x, 22);
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26 imap = imap.set(x2, 33);
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27 expect(imap.has(x)).toBeTruthy();
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28 expect(imap.has(x2)).toBeTruthy();
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29 expect(imap.size).toEqual(1);
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30 });
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31 });
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32
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33 describe("groupByRdfType", () => {
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34 test("finds multiple graphs", () => {});
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35 test("works", async () => {
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36 const store = new Store();
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37
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38 const parser = new Parser();
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39 await new Promise((res, rej) => {
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40 parser.parse(
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41 `PREFIX : <urn:>
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42 :rs1 a :Foo; :pred1 "obj1" .
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43 :rs2 a :Foo; :pred1 "obj2" .
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44 :rs3 a :Bar .
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45 :rs4 :pred1 "obj4" .
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46 `,
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47 (error, quad: Quad, prefixes: Prefixes) => {
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48 if (quad) {
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49 store.addQuad(quad);
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50 } else {
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51 res(undefined);
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52 }
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53 }
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54 );
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55 });
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56 const grouped = groupByRdfType(store);
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57 expect(Array.from(grouped.byType.keys())).toHaveLength(2);
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58 expect(grouped.byType.get(namedNode("urn:Foo"))).toEqual(
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59 Immutable.Set([namedNode("urn:rs1"), namedNode("urn:rs2")])
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60 );
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61 expect(grouped.byType.get(namedNode("urn:Bar"))).toEqual(
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62 Immutable.Set([namedNode("urn:rs3")])
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63 );
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64 expect(grouped.untypedSubjs).toEqual([namedNode("urn:rs4")]);
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65 });
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66 });