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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);
});
});
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80 entries across 80 versions & 1 rubygems