add test spec

runtime/JavaScript/spec/BitSetSpec.js

@@ -0,0 +1,94 @@
+import BitSet from "../src/antlr4/misc/BitSet.js";
+
+describe('test BitSet', () => {
+
+ it("is empty", () => {
+ const bs = new BitSet();
+ expect(bs.length).toEqual(0);
+ })
+
+ it("sets 1 value", () => {
+ const bs = new BitSet();
+ bs.add(67);
+ expect(bs.length).toEqual(1);
+ expect(bs.has(67)).toBeTrue();
+ })
+
+ it("clears 1 value", () => {
+ const bs = new BitSet();
+ bs.add(67);
+ bs.remove(67)
+ expect(bs.length).toEqual(0);
+ expect(bs.has(67)).toBeFalse();
+ })
+
+ it("sets 2 consecutive values", () => {
+ const bs = new BitSet();
+ bs.add(67);
+ bs.add(68);
+ expect(bs.length).toEqual(2);
+ expect(bs.has(67)).toBeTrue();
+ expect(bs.has(68)).toBeTrue();
+ })
+
+ it("sets 2 close values", () => {
+ const bs = new BitSet();
+ bs.add(67);
+ bs.add(70);
+ expect(bs.length).toEqual(2);
+ expect(bs.has(67)).toBeTrue();
+ expect(bs.has(70)).toBeTrue();
+ })
+
+ it("sets 2 distant values", () => {
+ const bs = new BitSet();
+ bs.add(67);
+ bs.add(241);
+ expect(bs.length).toEqual(2);
+ expect(bs.has(67)).toBeTrue();
+ expect(bs.has(241)).toBeTrue();
+ })
+
+ it("combines 2 identical sets", () => {
+ const bs1 = new BitSet();
+ bs1.add(67);
+ const bs2 = new BitSet();
+ bs2.add(67);
+ bs1.or(bs2);
+ expect(bs1.length).toEqual(1);
+ expect(bs1.has(67)).toBeTrue();
+ })
+
+ it("combines 2 distinct sets", () => {
+ const bs1 = new BitSet();
+ bs1.add(67);
+ const bs2 = new BitSet();
+ bs2.add(69);
+ bs1.or(bs2);
+ expect(bs1.length).toEqual(2);
+ expect(bs1.has(67)).toBeTrue();
+ expect(bs1.has(69)).toBeTrue();
+ })
+
+ it("combines 2 overlapping sets", () => {
+ const bs1 = new BitSet();
+ bs1.add(67);
+ bs1.add(69);
+ const bs2 = new BitSet();
+ bs2.add(69);
+ bs2.add(71);
+ bs1.or(bs2);
+ expect(bs1.length).toEqual(3);
+ expect(bs1.has(67)).toBeTrue();
+ expect(bs1.has(69)).toBeTrue();
+ expect(bs1.has(71)).toBeTrue();
+ })
+
+ it("returns values", () => {
+ const bs = new BitSet();
+ bs.add(67);
+ bs.add(69);
+ const values = bs.values();
+ expect(values).toEqual(['67', '69']);
+ })
+})

runtime/JavaScript/src/antlr4/misc/BitSet.js

@@ -28,7 +28,7 @@ export default class BitSet {
  }
 
  values() {
- return Object.keys(this.data);
+ return Object.keys(this.data); // .map(s => parseInt(s))
  }
 
  minValue() {