42 lines
1.4 KiB
TypeScript
42 lines
1.4 KiB
TypeScript
// Ref: https://github.com/ethereum/wiki/wiki/JSON-RPC
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import { hexEncodeQuantity, hexEncodeData } from 'libs/nodes/rpc/utils';
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import BN from 'bn.js';
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// 0x41 (65 in decimal)
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// 0x400 (1024 in decimal)
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// WRONG: 0x (should always have at least one digit - zero is "0x0")
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// WRONG: 0x0400 (no leading zeroes allowed)
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// WRONG: ff (must be prefixed 0x)
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describe('hexEncodeQuantity', () => {
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it('convert dec to hex', () => {
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expect(hexEncodeQuantity(new BN(65))).toEqual('0x41');
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});
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it('should strip leading zeroes', () => {
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expect(hexEncodeQuantity(new BN(1024))).toEqual('0x400');
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});
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it('should handle zeroes correctly', () => {
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expect(hexEncodeQuantity(new BN(0))).toEqual('0x0');
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});
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});
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// 0x41 (size 1, "A")
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// 0x004200 (size 3, "\0B\0")
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// 0x (size 0, "")
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// WRONG: 0xf0f0f (must be even number of digits)
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// WRONG: 004200 (must be prefixed 0x)
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describe('hexEncodeData', () => {
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it('encode data to hex', () => {
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expect(hexEncodeData(Buffer.from('A'))).toEqual('0x41');
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});
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it('should not strip leading zeroes', () => {
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expect(hexEncodeData(Buffer.from('\0B\0'))).toEqual('0x004200');
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});
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it('should handle zero length data correctly', () => {
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expect(hexEncodeData(Buffer.from(''))).toEqual('0x');
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});
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it('Can take strings as an input', () => {
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expect(hexEncodeData('0xFEED')).toEqual('0xfeed');
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expect(hexEncodeData('FEED')).toEqual('0x46454544');
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});
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});
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