1const chai = require("chai");
  2const babyjub = require("../src/babyjub.js");
  3const Scalar = require("ffjavascript").Scalar;
  4
  5const assert = chai.assert;
  6
  7// const bigInt = require("big-integer");
  8
  9
 10describe("Baby Jub js test", function () {
 11
 12    this.timeout(100000);
 13
 14    it("Should add point (0,1) and (0,1)", () => {
 15
 16        const p1 = [
 17            babyjub.F.e(0),
 18            babyjub.F.e(1)];
 19        const p2 = [
 20            babyjub.F.e(0),
 21            babyjub.F.e(1)
 22        ];
 23
 24        const out = babyjub.addPoint(p1, p2);
 25        assert(babyjub.F.eq(out[0], babyjub.F.zero));
 26        assert(babyjub.F.eq(out[1], babyjub.F.one));
 27    });
 28
 29    it("Should base be 8*generator", () => {
 30        let res;
 31        res = babyjub.addPoint(babyjub.Generator, babyjub.Generator);
 32        res = babyjub.addPoint(res, res);
 33        res = babyjub.addPoint(res, res);
 34
 35        assert(babyjub.F.eq(res[0], babyjub.Base8[0]));
 36        assert(babyjub.F.eq(res[1], babyjub.Base8[1]));
 37    });
 38
 39    it("Should add 2 same numbers", () => {
 40
 41        const p1 = [
 42            babyjub.F.e("17777552123799933955779906779655732241715742912184938656739573121738514868268"),
 43            babyjub.F.e("2626589144620713026669568689430873010625803728049924121243784502389097019475"),
 44        ];
 45        const p2 = [
 46            babyjub.F.e("17777552123799933955779906779655732241715742912184938656739573121738514868268"),
 47            babyjub.F.e("2626589144620713026669568689430873010625803728049924121243784502389097019475"),
 48        ];
 49
 50        const out = babyjub.addPoint(p1, p2);
 51        assert(babyjub.F.eq(out[0], babyjub.F.e("6890855772600357754907169075114257697580319025794532037257385534741338397365")));
 52        assert(babyjub.F.eq(out[1], babyjub.F.e("4338620300185947561074059802482547481416142213883829469920100239455078257889")));
 53    });
 54
 55    it("Should add 2 different numbers", () => {
 56
 57        const p1 = [
 58            babyjub.F.e("17777552123799933955779906779655732241715742912184938656739573121738514868268"),
 59            babyjub.F.e("2626589144620713026669568689430873010625803728049924121243784502389097019475"),
 60        ];
 61        const p2 = [
 62            babyjub.F.e("16540640123574156134436876038791482806971768689494387082833631921987005038935"),
 63            babyjub.F.e("20819045374670962167435360035096875258406992893633759881276124905556507972311"),
 64        ];
 65
 66        const out = babyjub.addPoint(p1, p2);
 67        assert(babyjub.F.eq(out[0], babyjub.F.e("7916061937171219682591368294088513039687205273691143098332585753343424131937")));
 68        assert(babyjub.F.eq(out[1], babyjub.F.e("14035240266687799601661095864649209771790948434046947201833777492504781204499")));
 69
 70    });
 71
 72    it("should mulPointEscalar 0", () => {
 73        const p = [
 74            babyjub.F.e("17777552123799933955779906779655732241715742912184938656739573121738514868268"),
 75            babyjub.F.e("2626589144620713026669568689430873010625803728049924121243784502389097019475"),
 76        ];
 77
 78        const r = babyjub.mulPointEscalar(p, 3);
 79        let r2 = babyjub.addPoint(p, p);
 80        r2 = babyjub.addPoint(r2, p);
 81        assert.equal(r2[0].toString(), r[0].toString());
 82        assert.equal(r2[1].toString(), r[1].toString());
 83        assert.equal(r[0].toString(), "19372461775513343691590086534037741906533799473648040012278229434133483800898");
 84        assert.equal(r[1].toString(), "9458658722007214007257525444427903161243386465067105737478306991484593958249");
 85    });
 86
 87    it("should mulPointEscalar 1", () => {
 88        const p = [
 89            babyjub.F.e("17777552123799933955779906779655732241715742912184938656739573121738514868268"),
 90            babyjub.F.e("2626589144620713026669568689430873010625803728049924121243784502389097019475"),
 91        ];
 92
 93        const r = babyjub.mulPointEscalar(p, Scalar.fromString("14035240266687799601661095864649209771790948434046947201833777492504781204499"));
 94        assert.equal(r[0].toString(), "17070357974431721403481313912716834497662307308519659060910483826664480189605");
 95        assert.equal(r[1].toString(), "4014745322800118607127020275658861516666525056516280575712425373174125159339");
 96    });
 97
 98    it("should mulPointEscalar 2", () => {
 99        const p = [
100            babyjub.F.e("6890855772600357754907169075114257697580319025794532037257385534741338397365"),
101            babyjub.F.e("4338620300185947561074059802482547481416142213883829469920100239455078257889"),
102        ];
103
104        const r = babyjub.mulPointEscalar(p, Scalar.fromString("20819045374670962167435360035096875258406992893633759881276124905556507972311"));
105        assert.equal(r[0].toString(), "13563888653650925984868671744672725781658357821216877865297235725727006259983");
106        assert.equal(r[1].toString(), "8442587202676550862664528699803615547505326611544120184665036919364004251662");
107    });
108
109    it("should inCurve 1", () => {
110        const p = [
111            babyjub.F.e("17777552123799933955779906779655732241715742912184938656739573121738514868268"),
112            babyjub.F.e("2626589144620713026669568689430873010625803728049924121243784502389097019475"),
113        ];
114        assert(babyjub.inCurve(p));
115    });
116
117    it("should inCurve 2", () => {
118        const p = [
119            babyjub.F.e("6890855772600357754907169075114257697580319025794532037257385534741338397365"),
120            babyjub.F.e("4338620300185947561074059802482547481416142213883829469920100239455078257889"),
121        ];
122        assert(babyjub.inCurve(p));
123    });
124
125    it("should inSubgroup 1", () => {
126        const p = [
127            babyjub.F.e("17777552123799933955779906779655732241715742912184938656739573121738514868268"),
128            babyjub.F.e("2626589144620713026669568689430873010625803728049924121243784502389097019475"),
129        ];
130        assert(babyjub.inSubgroup(p));
131    });
132
133    it("should inSubgroup 2", () => {
134        const p = [
135            babyjub.F.e("6890855772600357754907169075114257697580319025794532037257385534741338397365"),
136            babyjub.F.e("4338620300185947561074059802482547481416142213883829469920100239455078257889"),
137        ];
138        assert(babyjub.inSubgroup(p));
139    });
140
141    it("should packPoint - unpackPoint 1", () => {
142        const p = [
143            babyjub.F.e("17777552123799933955779906779655732241715742912184938656739573121738514868268"),
144            babyjub.F.e("2626589144620713026669568689430873010625803728049924121243784502389097019475"),
145        ];
146        const buf = babyjub.packPoint(p);
147        assert.equal(buf.toString("hex"), "53b81ed5bffe9545b54016234682e7b2f699bd42a5e9eae27ff4051bc698ce85");
148        const p2 = babyjub.unpackPoint(buf);
149        assert.equal(p2[0].toString(), "17777552123799933955779906779655732241715742912184938656739573121738514868268");
150        assert.equal(p2[1].toString(), "2626589144620713026669568689430873010625803728049924121243784502389097019475");
151    });
152
153    it("should packPoint - unpackPoint 2", () => {
154        const p = [
155            babyjub.F.e("6890855772600357754907169075114257697580319025794532037257385534741338397365"),
156            babyjub.F.e("4338620300185947561074059802482547481416142213883829469920100239455078257889"),
157        ];
158        const buf = babyjub.packPoint(p);
159        assert.equal(buf.toString("hex"), "e114eb17eddf794f063a68fecac515e3620e131976108555735c8b0773929709");
160        const p2 = babyjub.unpackPoint(buf);
161        assert.equal(p2[0].toString(), "6890855772600357754907169075114257697580319025794532037257385534741338397365");
162        assert.equal(p2[1].toString(), "4338620300185947561074059802482547481416142213883829469920100239455078257889");
163    });
164});