126 lines
4.2 KiB
JavaScript
126 lines
4.2 KiB
JavaScript
const chai = require("chai");
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const assert = chai.assert;
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import {
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puzzlesAndSolutions,
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invalidStrings,
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wrongLengthStrings,
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} from "../controllers/puzzle-strings";
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const Solver = require("../controllers/sudoku-solver.js");
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let solver = new Solver();
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suite("Unit Tests", () => {
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suite("Validation", () => {
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test("Logic handles a valid puzzle string of 81 characters", () => {
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for (let i in puzzlesAndSolutions) {
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assert.isTrue(solver.validate(puzzlesAndSolutions[i][0]));
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}
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});
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test("Logic handles a puzzle string with invalid characters (not 1-9 or .)", () => {
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for (let i in invalidStrings) {
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assert.equal(
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solver.validate(invalidStrings[i]).error,
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"Invalid characters in puzzle",
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invalidStrings[i]
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);
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}
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});
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test("Logic handles a puzzle string that is not 81 characters in length", () => {
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for (let i in wrongLengthStrings) {
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assert.equal(
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solver.validate(wrongLengthStrings[i]).error,
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"Expected puzzle to be 81 characters long"
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);
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}
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});
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});
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suite("Placement Checks", () => {
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test("Logic handles a valid row placement", () => {
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const checks = [
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solver.checkRowPlacement(puzzlesAndSolutions[0][0], 0, 3, 3),
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solver.checkRowPlacement(puzzlesAndSolutions[1][0], 0, 3, 6),
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solver.checkRowPlacement(puzzlesAndSolutions[2][0], 0, 2, 2),
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];
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for (let i in checks) {
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assert.isTrue(checks[i]);
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}
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});
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test("Logic handles an invalid row placement", () => {
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const checks = [
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solver.checkRowPlacement(puzzlesAndSolutions[0][0], 0, 3, 5),
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solver.checkRowPlacement(puzzlesAndSolutions[1][0], 0, 3, 1),
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solver.checkRowPlacement(puzzlesAndSolutions[2][0], 0, 2, 3),
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];
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for (let i in checks) {
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assert.isFalse(checks[i]);
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}
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});
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test("Login handles a valid column placement", () => {
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const checks = [
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solver.checkColPlacement(puzzlesAndSolutions[0][0], 0, 1, 3),
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solver.checkColPlacement(puzzlesAndSolutions[1][0], 0, 1, 6),
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solver.checkColPlacement(puzzlesAndSolutions[2][0], 0, 0, 2),
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];
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for (let i in checks) {
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assert.isTrue(checks[i]);
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}
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});
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test("Logic handles an invalid column placement", () => {
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const checks = [
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solver.checkColPlacement(puzzlesAndSolutions[0][0], 1, 1, 9),
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solver.checkColPlacement(puzzlesAndSolutions[1][0], 1, 1, 8),
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solver.checkColPlacement(puzzlesAndSolutions[2][0], 2, 2, 2),
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];
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for (let i in checks) {
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assert.isFalse(checks[i]);
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}
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});
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test("Logic handles a valid region (3x3 grid) placement", () => {
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const checks = [
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solver.checkRegionPlacement(puzzlesAndSolutions[0][0], 0, 1, 3),
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solver.checkRegionPlacement(puzzlesAndSolutions[1][0], 0, 1, 6),
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solver.checkRegionPlacement(puzzlesAndSolutions[2][0], 0, 0, 2),
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];
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for (let i in checks) {
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assert.isTrue(checks[i]);
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}
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});
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test("Logic handles an invalid region (3x3 grid) placement", () => {
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const checks = [
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solver.checkRegionPlacement(puzzlesAndSolutions[0][0], 2, 2, 5),
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solver.checkRegionPlacement(puzzlesAndSolutions[1][0], 2, 2, 5),
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solver.checkRegionPlacement(puzzlesAndSolutions[2][0], 2, 2, 5),
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];
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for (let i in checks) {
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assert.isFalse(checks[i]);
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}
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});
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});
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suite("Solver", () => {
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test("Valid puzzle strings pass the solver", () => {
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for (let i in puzzlesAndSolutions) {
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assert.equal(
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solver.solve(puzzlesAndSolutions[i][0]).solution,
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puzzlesAndSolutions[i][1]
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);
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}
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});
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test("Invalid puzzle strings fail the solver", () => {
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for (let i in invalidStrings) {
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assert.equal(
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solver.solve(invalidStrings[i]).error,
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"Invalid characters in puzzle",
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"invalid characters"
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);
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}
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});
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test("Solver returns the expected solution for an incomplete puzzle", () => {
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for (let i in puzzlesAndSolutions) {
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assert.equal(
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solver.solve(puzzlesAndSolutions[i][0]).solution,
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puzzlesAndSolutions[i][1]
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);
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}
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});
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});
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});
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