coder.encodeParam.js

var chai = require('chai');
var assert = chai.assert;
var coder = require('../lib/solidity/coder');
var BigNumber = require('bignumber.js');

function bn(val, enc) {
    return new BigNumber(val, enc);
}

describe('lib/solidity/coder', function () {
    describe('encodeParam', function () {
        var test = function (t) {
            it('should turn ' + t.value + ' to ' + t.expected, function () {
                assert.equal(coder.encodeParam(t.type, t.value), t.expected);
            });
        };

        test({
            type: 'address[2]',
            value: ['407d73d8a49eeb85d32cf465507dd71d507100c1', '407d73d8a49eeb85d32cf465507dd71d507100c3'],
            expected: '000000000000000000000000407d73d8a49eeb85d32cf465507dd71d507100c1' +
            '000000000000000000000000407d73d8a49eeb85d32cf465507dd71d507100c3'
        });
        test({
            type: 'address[]',
            value: ['407d73d8a49eeb85d32cf465507dd71d507100c1', '407d73d8a49eeb85d32cf465507dd71d507100c3'],
            expected: '0000000000000000000000000000000000000000000000000000000000000020' +
            '0000000000000000000000000000000000000000000000000000000000000002' +
            '000000000000000000000000407d73d8a49eeb85d32cf465507dd71d507100c1' +
            '000000000000000000000000407d73d8a49eeb85d32cf465507dd71d507100c3'
        });
        test({
            type: 'address[][2]',
            value: [['407d73d8a49eeb85d32cf465507dd71d507100c1', '407d73d8a49eeb85d32cf465507dd71d507100c2'],
                ['407d73d8a49eeb85d32cf465507dd71d507100c3', '407d73d8a49eeb85d32cf465507dd71d507100c4']],
            expected: '0000000000000000000000000000000000000000000000000000000000000040' +
            '00000000000000000000000000000000000000000000000000000000000000a0' +
            '0000000000000000000000000000000000000000000000000000000000000002' +
            '000000000000000000000000407d73d8a49eeb85d32cf465507dd71d507100c1' +
            '000000000000000000000000407d73d8a49eeb85d32cf465507dd71d507100c2' +
            '0000000000000000000000000000000000000000000000000000000000000002' +
            '000000000000000000000000407d73d8a49eeb85d32cf465507dd71d507100c3' +
            '000000000000000000000000407d73d8a49eeb85d32cf465507dd71d507100c4'
        });
        test({
            type: 'address[2][]',
            value: [['407d73d8a49eeb85d32cf465507dd71d507100c1', '407d73d8a49eeb85d32cf465507dd71d507100c2'],
                ['407d73d8a49eeb85d32cf465507dd71d507100c3', '407d73d8a49eeb85d32cf465507dd71d507100c4']],
            expected: '0000000000000000000000000000000000000000000000000000000000000020' +
            '0000000000000000000000000000000000000000000000000000000000000002' +
            '000000000000000000000000407d73d8a49eeb85d32cf465507dd71d507100c1' +
            '000000000000000000000000407d73d8a49eeb85d32cf465507dd71d507100c2' +
            '000000000000000000000000407d73d8a49eeb85d32cf465507dd71d507100c3' +
            '000000000000000000000000407d73d8a49eeb85d32cf465507dd71d507100c4'
        });
        test({type: 'bool', value: true, expected: '0000000000000000000000000000000000000000000000000000000000000001'});
        test({
            type: 'bool',
            value: false,
            expected: '0000000000000000000000000000000000000000000000000000000000000000'
        });
        test({
            type: 'bool[1][2]', value: [[false], [false]],
            expected: '0000000000000000000000000000000000000000000000000000000000000000' +
            '0000000000000000000000000000000000000000000000000000000000000000'
        });
        test({
            type: 'bool[2]', value: [true, false],
            expected: '0000000000000000000000000000000000000000000000000000000000000001' +
            '0000000000000000000000000000000000000000000000000000000000000000'
        });
        test({
            type: 'bool[]', value: [true, true, false],
            expected: '0000000000000000000000000000000000000000000000000000000000000020' +
            '0000000000000000000000000000000000000000000000000000000000000003' +
            '0000000000000000000000000000000000000000000000000000000000000001' +
            '0000000000000000000000000000000000000000000000000000000000000001' +
            '0000000000000000000000000000000000000000000000000000000000000000'
        });

        test({type: 'int', value: 1, expected: '0000000000000000000000000000000000000000000000000000000000000001'});
        test({type: 'int', value: 16, expected: '0000000000000000000000000000000000000000000000000000000000000010'});
        test({type: 'int', value: -1, expected: 'ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff'});
        test({type: 'int', value: 0.1, expected: '0000000000000000000000000000000000000000000000000000000000000000'});
        test({type: 'int', value: 3.9, expected: '0000000000000000000000000000000000000000000000000000000000000003'});
        test({type: 'int256', value: 1, expected: '0000000000000000000000000000000000000000000000000000000000000001'});
        test({type: 'int256', value: 16, expected: '0000000000000000000000000000000000000000000000000000000000000010'});
        test({type: 'int256', value: -1, expected: 'ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff'});

        test({type: 'uint', value: 1, expected: '0000000000000000000000000000000000000000000000000000000000000001'});
        test({type: 'uint', value: 16, expected: '0000000000000000000000000000000000000000000000000000000000000010'});
        test({type: 'uint', value: 0.1, expected: '0000000000000000000000000000000000000000000000000000000000000000'});
        test({type: 'uint', value: 3.9, expected: '0000000000000000000000000000000000000000000000000000000000000003'});
        test({type: 'uint256', value: 1, expected: '0000000000000000000000000000000000000000000000000000000000000001'});
        test({
            type: 'uint256',
            value: 16,
            expected: '0000000000000000000000000000000000000000000000000000000000000010'
        });
        test({
            type: 'uint256', value: '0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff',
            expected: 'ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff'
        });

        test({
            type: 'bytes32', value: '0x6761766f66796f726b',
            expected: '00000000000000000000000000000000000000000000006761766f66796f726b'
        });
        test({
            type: 'bytes32', value: bn('0x6761766f66796f726b'),
            expected: '00000000000000000000000000000000000000000000006761766f66796f726b'
        });
        test({
            type: 'bytes32', value: 12,
            expected: '000000000000000000000000000000000000000000000000000000000000000c'
        });
        test({
            type: 'bytes32', value: '0x731a3afc00d1b1e3461b955e53fc866dcf303b3eb9f4c16f89e388930f48134b',
            expected: '731a3afc00d1b1e3461b955e53fc866dcf303b3eb9f4c16f89e388930f48134b'
        });
        test({
            type: 'bytes32', value: '731a3afc00d1b1e3461b955e53fc866dcf303b3eb9f4c16f89e388930f48134b',
            expected: '731a3afc00d1b1e3461b955e53fc866dcf303b3eb9f4c16f89e388930f48134b'
        });
        test({
            type: 'bytes32', value: '0x02838654a83c213dae3698391eabbd54a5b6e1fb3452bc7fa4ea0dd5c8ce7e29',
            expected: '02838654a83c213dae3698391eabbd54a5b6e1fb3452bc7fa4ea0dd5c8ce7e29'
        });
        test({
            type: 'bytes', value: '0x6761766f66796f726b',
            expected: '0000000000000000000000000000000000000000000000000000000000000020' +
            '0000000000000000000000000000000000000000000000000000000000000009' +
            '00000000000000000000000000000000000000000000006761766f66796f726b'
        });
        test({
            type: 'bytes', value: '0x731a3afc00d1b1e3461b955e53fc866dcf303b3eb9f4c16f89e388930f48134b',
            expected: '0000000000000000000000000000000000000000000000000000000000000020' +
            '0000000000000000000000000000000000000000000000000000000000000020' +
            '731a3afc00d1b1e3461b955e53fc866dcf303b3eb9f4c16f89e388930f48134b'
        });
        /*
        test({
            type: 'string',
            value: 'gavofyork',
            expected: '0000000000000000000000000000000000000000000000000000000000000020' +
            '0000000000000000000000000000000000000000000000000000000000000009' +
            '6761766f66796f726b0000000000000000000000000000000000000000000000'
        });
        */
        test({
            type: 'bytes', value: '0xc3a40000c3a4',
            expected: '0000000000000000000000000000000000000000000000000000000000000020' +
            '0000000000000000000000000000000000000000000000000000000000000006' +
            '0000000000000000000000000000000000000000000000000000c3a40000c3a4'
        });
        test({
            type: 'bytes32', value: '0xc3a40000c3a4',
            expected: '0000000000000000000000000000000000000000000000000000c3a40000c3a4'
        });
        /*
        test({
            type: 'string', value: 'ää',
            expected: '0000000000000000000000000000000000000000000000000000000000000020' +
            '0000000000000000000000000000000000000000000000000000000000000008' +
            'c383c2a4c383c2a4000000000000000000000000000000000000000000000000'
        });
        test({
            type: 'string', value: 'ü',
            expected: '0000000000000000000000000000000000000000000000000000000000000020' +
            '0000000000000000000000000000000000000000000000000000000000000002' +
            'c3bc000000000000000000000000000000000000000000000000000000000000'
        });
        test({
            type: 'string', value: 'Ã',
            expected: '0000000000000000000000000000000000000000000000000000000000000020' +
            '0000000000000000000000000000000000000000000000000000000000000002' +
            'c383000000000000000000000000000000000000000000000000000000000000'
        });
        */
        test({
            type: 'int[]', value: [], expected: '0000000000000000000000000000000000000000000000000000000000000020' +
            '0000000000000000000000000000000000000000000000000000000000000000'
        });
        test({
            type: 'int[]', value: [3], expected: '0000000000000000000000000000000000000000000000000000000000000020' +
            '0000000000000000000000000000000000000000000000000000000000000001' +
            '0000000000000000000000000000000000000000000000000000000000000003'
        });
        test({
            type: 'int256[]', value: [3], expected: '0000000000000000000000000000000000000000000000000000000000000020' +
            '0000000000000000000000000000000000000000000000000000000000000001' +
            '0000000000000000000000000000000000000000000000000000000000000003'
        });
        test({
            type: 'int[]',
            value: [1, 2, 3],
            expected: '0000000000000000000000000000000000000000000000000000000000000020' +
            '0000000000000000000000000000000000000000000000000000000000000003' +
            '0000000000000000000000000000000000000000000000000000000000000001' +
            '0000000000000000000000000000000000000000000000000000000000000002' +
            '0000000000000000000000000000000000000000000000000000000000000003'
        });


        test({type: 'real', value: 1, expected: '0000000000000000000000000000000100000000000000000000000000000000'});
        test({
            type: 'real',
            value: 2.125,
            expected: '0000000000000000000000000000000220000000000000000000000000000000'
        });
        test({type: 'real', value: 8.5, expected: '0000000000000000000000000000000880000000000000000000000000000000'});
        test({type: 'real', value: -1, expected: 'ffffffffffffffffffffffffffffffff00000000000000000000000000000000'});
        test({type: 'ureal', value: 1, expected: '0000000000000000000000000000000100000000000000000000000000000000'});
        test({
            type: 'ureal',
            value: 2.125,
            expected: '0000000000000000000000000000000220000000000000000000000000000000'
        });
        test({type: 'ureal', value: 8.5, expected: '0000000000000000000000000000000880000000000000000000000000000000'});

        test({
            type: 'bytes', value: '0x131a3afc00d1b1e3461b955e53fc866dcf303b3eb9f4c16f89e388930f48134b' +
            '231a3afc00d1b1e3461b955e53fc866dcf303b3eb9f4c16f89e388930f48134b',
            expected: '0000000000000000000000000000000000000000000000000000000000000020' +
            '0000000000000000000000000000000000000000000000000000000000000040' +
            '131a3afc00d1b1e3461b955e53fc866dcf303b3eb9f4c16f89e388930f48134b' +
            '231a3afc00d1b1e3461b955e53fc866dcf303b3eb9f4c16f89e388930f48134b'
        });
        test({
            type: 'bytes', value: '0x131a3afc00d1b1e3461b955e53fc866dcf303b3eb9f4c16f89e388930f48134b' +
            '231a3afc00d1b1e3461b955e53fc866dcf303b3eb9f4c16f89e388930f48134b' +
            '331a3afc00d1b1e3461b955e53fc866dcf303b3eb9f4c16f89e388930f48134b',
            expected: '0000000000000000000000000000000000000000000000000000000000000020' +
            '0000000000000000000000000000000000000000000000000000000000000060' +
            '131a3afc00d1b1e3461b955e53fc866dcf303b3eb9f4c16f89e388930f48134b' +
            '231a3afc00d1b1e3461b955e53fc866dcf303b3eb9f4c16f89e388930f48134b' +
            '331a3afc00d1b1e3461b955e53fc866dcf303b3eb9f4c16f89e388930f48134b'
        });
        /*
        test({
            type: 'string', value: 'welcome to ethereum. welcome to ethereum. welcome to ethereum.',
            expected: '0000000000000000000000000000000000000000000000000000000000000020' +
            '000000000000000000000000000000000000000000000000000000000000003e' +
            '77656c636f6d6520746f20657468657265756d2e2077656c636f6d6520746f20' +
            '657468657265756d2e2077656c636f6d6520746f20657468657265756d2e0000'
        });
        */
    });
});

describe('lib/solidity/coder', function () {
    describe('encodeParams', function () {
        var test = function (t) {
            it('should turn ' + t.values + ' to ' + t.expected, function () {
                assert.equal(coder.encodeParams(t.types, t.values), t.expected);
            });
        };

        test({
            types: ['address', 'address'],
            values: ['0x407d73d8a49eeb85d32cf465507dd71d507100c1', '0x407d73d8a49eeb85d32cf465507dd71d507100c3'],
            expected: '000000000000000000000000407d73d8a49eeb85d32cf465507dd71d507100c1' +
            '000000000000000000000000407d73d8a49eeb85d32cf465507dd71d507100c3'
        });
        test({
            types: ['bool[2]', 'bool[3]'], values: [[true, false], [false, false, true]],
            expected: '0000000000000000000000000000000000000000000000000000000000000001' +
            '0000000000000000000000000000000000000000000000000000000000000000' +
            '0000000000000000000000000000000000000000000000000000000000000000' +
            '0000000000000000000000000000000000000000000000000000000000000000' +
            '0000000000000000000000000000000000000000000000000000000000000001'
        });
        test({
            types: ['int'],
            values: [1],
            expected: '0000000000000000000000000000000000000000000000000000000000000001'
        });
        test({
            types: ['int'],
            values: [16],
            expected: '0000000000000000000000000000000000000000000000000000000000000010'
        });
        test({
            types: ['int'],
            values: [-1],
            expected: 'ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff'
        });
        test({
            types: ['int256'],
            values: [1],
            expected: '0000000000000000000000000000000000000000000000000000000000000001'
        });
        test({
            types: ['int256'],
            values: [16],
            expected: '0000000000000000000000000000000000000000000000000000000000000010'
        });
        test({
            types: ['int256'],
            values: [-1],
            expected: 'ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff'
        });
        test({
            types: ['int[]'],
            values: [[3]],
            expected: '0000000000000000000000000000000000000000000000000000000000000020' +
            '0000000000000000000000000000000000000000000000000000000000000001' +
            '0000000000000000000000000000000000000000000000000000000000000003'
        });
        test({
            types: ['int256[]'],
            values: [[3]],
            expected: '0000000000000000000000000000000000000000000000000000000000000020' +
            '0000000000000000000000000000000000000000000000000000000000000001' +
            '0000000000000000000000000000000000000000000000000000000000000003'
        });
        test({
            types: ['int256[]'],
            values: [[1, 2, 3]],
            expected: '0000000000000000000000000000000000000000000000000000000000000020' +
            '0000000000000000000000000000000000000000000000000000000000000003' +
            '0000000000000000000000000000000000000000000000000000000000000001' +
            '0000000000000000000000000000000000000000000000000000000000000002' +
            '0000000000000000000000000000000000000000000000000000000000000003'
        });
        test({
            types: ['int[]', 'int[]'], values: [[1, 2], [3, 4]],
            expected: '0000000000000000000000000000000000000000000000000000000000000040' +
            '00000000000000000000000000000000000000000000000000000000000000a0' +
            '0000000000000000000000000000000000000000000000000000000000000002' +
            '0000000000000000000000000000000000000000000000000000000000000001' +
            '0000000000000000000000000000000000000000000000000000000000000002' +
            '0000000000000000000000000000000000000000000000000000000000000002' +
            '0000000000000000000000000000000000000000000000000000000000000003' +
            '0000000000000000000000000000000000000000000000000000000000000004'
        });
        test({
            types: ['int[]', 'int[]', 'int[]'], values: [[1, 2], [3, 4], [5, 6, 7]],
            expected: '0000000000000000000000000000000000000000000000000000000000000060' +
            '00000000000000000000000000000000000000000000000000000000000000c0' +
            '0000000000000000000000000000000000000000000000000000000000000120' +
            '0000000000000000000000000000000000000000000000000000000000000002' +
            '0000000000000000000000000000000000000000000000000000000000000001' +
            '0000000000000000000000000000000000000000000000000000000000000002' +
            '0000000000000000000000000000000000000000000000000000000000000002' +
            '0000000000000000000000000000000000000000000000000000000000000003' +
            '0000000000000000000000000000000000000000000000000000000000000004' +
            '0000000000000000000000000000000000000000000000000000000000000003' +
            '0000000000000000000000000000000000000000000000000000000000000005' +
            '0000000000000000000000000000000000000000000000000000000000000006' +
            '0000000000000000000000000000000000000000000000000000000000000007'
        });

        test({
            types: ['bytes32'], values: ['0x6761766f66796f726b'],
            expected: '00000000000000000000000000000000000000000000006761766f66796f726b'
        });
        /*
        test({
            types: ['string'],
            values: ['gavofyork'],
            expected: '0000000000000000000000000000000000000000000000000000000000000020' +
            '0000000000000000000000000000000000000000000000000000000000000009' +
            '6761766f66796f726b0000000000000000000000000000000000000000000000'
        });
        test({
            types: ['string', 'string'], values: ['gavofyork', 'gavofyork'],
            expected: '0000000000000000000000000000000000000000000000000000000000000040' +
            '0000000000000000000000000000000000000000000000000000000000000080' +
            '0000000000000000000000000000000000000000000000000000000000000009' +
            '6761766f66796f726b0000000000000000000000000000000000000000000000' +
            '0000000000000000000000000000000000000000000000000000000000000009' +
            '6761766f66796f726b0000000000000000000000000000000000000000000000'
        });
        */
        test({
            types: ['bytes32', 'int'], values: ['0x6761766f66796f726b', 5],
            expected: '00000000000000000000000000000000000000000000006761766f66796f726b' +
            '0000000000000000000000000000000000000000000000000000000000000005'
        });
        test({
            types: ['int', 'bytes32'], values: [5, '0x6761766f66796f726b'],
            expected: '0000000000000000000000000000000000000000000000000000000000000005' +
            '00000000000000000000000000000000000000000000006761766f66796f726b'
        });
        /*
        test({ types: ['int', 'string'], values: [5, 'gavofyork'],
            expected: '0000000000000000000000000000000000000000000000000000000000000005' +
            '0000000000000000000000000000000000000000000000000000000000000040' +
            '0000000000000000000000000000000000000000000000000000000000000009' +
            '6761766f66796f726b0000000000000000000000000000000000000000000000'});
        test({ types: ['string', 'int'], values: ['gavofyork', 5],
            expected: '0000000000000000000000000000000000000000000000000000000000000040' +
            '0000000000000000000000000000000000000000000000000000000000000005' +
            '0000000000000000000000000000000000000000000000000000000000000009' +
            '6761766f66796f726b0000000000000000000000000000000000000000000000'});
        test({ types: ['string', 'bool', 'int[]'], values: ['gavofyork', true, [1, 2, 3]],
            expected: '0000000000000000000000000000000000000000000000000000000000000060' +
            '0000000000000000000000000000000000000000000000000000000000000001' +
            '00000000000000000000000000000000000000000000000000000000000000a0' +
            '0000000000000000000000000000000000000000000000000000000000000009' +
            '6761766f66796f726b0000000000000000000000000000000000000000000000' +
            '0000000000000000000000000000000000000000000000000000000000000003' +
            '0000000000000000000000000000000000000000000000000000000000000001' +
            '0000000000000000000000000000000000000000000000000000000000000002' +
            '0000000000000000000000000000000000000000000000000000000000000003'});
        test({ types: ['string', 'int[]'], values: ['gavofyork', [1, 2, 3]],
            expected: '0000000000000000000000000000000000000000000000000000000000000040' +
            '0000000000000000000000000000000000000000000000000000000000000080' +
            '0000000000000000000000000000000000000000000000000000000000000009' +
            '6761766f66796f726b0000000000000000000000000000000000000000000000' +
            '0000000000000000000000000000000000000000000000000000000000000003' +
            '0000000000000000000000000000000000000000000000000000000000000001' +
            '0000000000000000000000000000000000000000000000000000000000000002' +
            '0000000000000000000000000000000000000000000000000000000000000003'});
        test({ types: ['int', 'string'], values: [5, 'gavofyork'],
            expected: '0000000000000000000000000000000000000000000000000000000000000005' +
            '0000000000000000000000000000000000000000000000000000000000000040' +
            '0000000000000000000000000000000000000000000000000000000000000009' +
            '6761766f66796f726b0000000000000000000000000000000000000000000000'});
        test({ types: ['int', 'string', 'int', 'int', 'int', 'int[]'], values: [1, 'gavofyork', 2, 3, 4, [5, 6, 7]],
            expected: '0000000000000000000000000000000000000000000000000000000000000001' +
            '00000000000000000000000000000000000000000000000000000000000000c0' +
            '0000000000000000000000000000000000000000000000000000000000000002' +
            '0000000000000000000000000000000000000000000000000000000000000003' +
            '0000000000000000000000000000000000000000000000000000000000000004' +
            '0000000000000000000000000000000000000000000000000000000000000100' +
            '0000000000000000000000000000000000000000000000000000000000000009' +
            '6761766f66796f726b0000000000000000000000000000000000000000000000' +
            '0000000000000000000000000000000000000000000000000000000000000003' +
            '0000000000000000000000000000000000000000000000000000000000000005' +
            '0000000000000000000000000000000000000000000000000000000000000006' +
            '0000000000000000000000000000000000000000000000000000000000000007'});
        */
        test({
            types: ['int', 'bytes', 'int', 'bytes'], values: [
                5,
                '0x131a3afc00d1b1e3461b955e53fc866dcf303b3eb9f4c16f89e388930f48134b' +
                '231a3afc00d1b1e3461b955e53fc866dcf303b3eb9f4c16f89e388930f48134b',
                3,
                '0x331a3afc00d1b1e3461b955e53fc866dcf303b3eb9f4c16f89e388930f48134b' +
                '431a3afc00d1b1e3461b955e53fc866dcf303b3eb9f4c16f89e388930f48134b'
            ],
            expected: '0000000000000000000000000000000000000000000000000000000000000005' +
            '0000000000000000000000000000000000000000000000000000000000000080' +
            '0000000000000000000000000000000000000000000000000000000000000003' +
            '00000000000000000000000000000000000000000000000000000000000000e0' +
            '0000000000000000000000000000000000000000000000000000000000000040' +
            '131a3afc00d1b1e3461b955e53fc866dcf303b3eb9f4c16f89e388930f48134b' +
            '231a3afc00d1b1e3461b955e53fc866dcf303b3eb9f4c16f89e388930f48134b' +
            '0000000000000000000000000000000000000000000000000000000000000040' +
            '331a3afc00d1b1e3461b955e53fc866dcf303b3eb9f4c16f89e388930f48134b' +
            '431a3afc00d1b1e3461b955e53fc866dcf303b3eb9f4c16f89e388930f48134b'
        });
    });
});

describe('lib/solidity/coder', function () {
    describe('encodeParams', function () {

        it("should detect non hex and throw", function () {
            assert.throws(function () {
                    coder.encodeParam('bytes32', "NotHex");
                },
                "Strings must be hex if the type is bytesX"
            );
        });

        it("should detect non hex and throw", function () {
            assert.throws(function () {
                    coder.encodeParam('bytes32', "0xStillNotHex");
                },
                "Strings must be hex if the type is bytesX"
            );
        })
    });
});