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Contents
var solve = require('./alphametics');
describe('Solve the alphametics puzzle', function () {
it('puzzle with three letters', function () {
var puzzle = 'I + BB == ILL';
var expected = {
'I': 1,
'B': 9,
'L': 0
};
expect(solve(puzzle)).toEqual(expected);
});
xit('solution must have unique value for each letter', function () {
var puzzle = 'A == B';
expect(solve(puzzle)).toBeNull();
});
xit('leading zero solution is invalid', function () {
var puzzle = 'ACA + DD == BD';
expect(solve(puzzle)).toBeNull();
});
xit('puzzle with four letters', function () {
var puzzle = 'AS + A == MOM';
var expected = {
'A': 9,
'S': 2,
'M': 1,
'O': 0
};
expect(solve(puzzle)).toEqual(expected);
});
xit('puzzle with six letters', function () {
var puzzle = 'NO + NO + TOO == LATE';
var expected = {
'N': 7,
'O': 4,
'T': 9,
'L': 1,
'A': 0,
'E': 2
};
expect(solve(puzzle)).toEqual(expected);
});
xit('puzzle with seven letters', function () {
var puzzle = 'HE + SEES + THE == LIGHT';
var expected = {
'E': 4,
'G': 2,
'H': 5,
'I': 0,
'L': 1,
'S': 9,
'T': 7
};
expect(solve(puzzle)).toEqual(expected);
});
xit('puzzle with eight letters', function () {
var puzzle = 'SEND + MORE == MONEY';
var expected = {
'S': 9,
'E': 5,
'N': 6,
'D': 7,
'M': 1,
'O': 0,
'R': 8,
'Y': 2
};
expect(solve(puzzle)).toEqual(expected);
});
xit('puzzle with ten letters', function () {
var puzzle = 'AND + A + STRONG + OFFENSE + AS + A + GOOD == DEFENSE';
var expected = {
'A': 5,
'D': 3,
'E': 4,
'F': 7,
'G': 8,
'N': 0,
'O': 2,
'R': 1,
'S': 6,
'T': 9
};
expect(solve(puzzle)).toEqual(expected);
});
});
Version data entries
141 entries across 141 versions & 1 rubygems