This repository has been archived on 2023-04-09. You can view files and clone it, but cannot push or open issues or pull requests.
chainsafe-bls/test/unit/helpers/g2point.test.ts

154 lines
5.3 KiB
TypeScript

import {G2point} from "../../../src/helpers/g2point";
import {expect} from "chai";
describe('g2point', function() {
it('should be equals', () => {
const g2 = G2point.random();
expect(g2.equal(g2)).to.be.true;
});
it('should not be equals', () => {
const g2 = G2point.random();
const g22 = G2point.random();
expect(g2.equal(g22)).to.be.false;
});
it('serialize deserialize should be equal', () => {
const g2 = G2point.random();
expect(G2point.fromCompressedBytes(g2.toBytesCompressed()).equal(g2)).to.be.true;
});
it('should deserialize from compress', () => {
const x =
"8123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef"
+ "0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef";
expect(() => {
G2point.fromCompressedBytes(
Buffer.from(
x,
'hex'
)
)
}).to.not.throw;
});
it('should fail to deserialize', () => {
const x =
"800000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"
+ "1a0111ea397fe69a4b1ba7b6434bacd764774b84f38512bf6730d2a0f6b0f6241eabfffeb153ffffb9feffffffffaaab";
expect(() => {
G2point.fromCompressedBytes(
Buffer.from(
x,
'hex'
)
)
}).to.throw('The deserialised X real or imaginary coordinate is too large.');
});
it('should fail to deserialize 2', () => {
const x =
"9a0111ea397fe69a4b1ba7b6434bacd764774b84f38512bf6730d2a0f6b0f6241eabfffeb153ffffb9feffffffffaaab"
+ "000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000";
expect(() => {
G2point.fromCompressedBytes(
Buffer.from(
x,
'hex'
)
)
}).to.throw('The deserialised X real or imaginary coordinate is too large.');
});
it('should fail to deserialize 3', () => {
const x =
"800000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"
+ "1a0111ea397fe69a4b1ba7b6434bacd764774b84f38512bf6730d2a0f6b0f6241eabfffeb153ffffb9feffffffffaaac";
expect(() => {
G2point.fromCompressedBytes(
Buffer.from(
x,
'hex'
)
)
}).to.throw('The deserialised X real or imaginary coordinate is too large.');
});
it('should fail to deserialize 4', () => {
const x =
"9a0111ea397fe69a4b1ba7b6434bacd764774b84f38512bf6730d2a0f6b0f6241eabfffeb153ffffb9feffffffffaaac"
+ "000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000";
expect(() => {
G2point.fromCompressedBytes(
Buffer.from(
x,
'hex'
)
)
}).to.throw('The deserialised X real or imaginary coordinate is too large.');
});
it('should fail to deserialize 5', () => {
const x =
"8123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef"
+ "0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcde0";
expect(() => {
G2point.fromCompressedBytes(
Buffer.from(
x,
'hex'
)
)
}).to.throw('X coordinate is not on the curve.');
});
it('should fail to deserialize infinity', () => {
const x =
"800000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"
+ "000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000";
expect(() => {
G2point.fromCompressedBytes(
Buffer.from(
x,
'hex'
)
)
}).to.throw('X coordinate is not on the curve.');
});
it('should fail to deserialize - too few bytes', () => {
const x = "8123456789abcd";
expect(() => {
G2point.fromCompressedBytes(
Buffer.from(
x,
'hex'
)
)
}).to.throw('Expected signature of 96 bytes');
});
it('should fail to deserialize - too many bytes', () => {
expect(() => {
G2point.fromCompressedBytes(
Buffer.alloc(100, 1),
)
}).to.throw('Expected signature of 96 bytes');
});
it('should deserialize infinity', () => {
const x =
"c00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"
+ "000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000";
const g2 = G2point.fromCompressedBytes(
Buffer.from(
x,
'hex'
)
);
expect(g2.getPoint().is_infinity()).to.be.true;
})
});