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How to use willThrow method in unexpected

Best JavaScript code snippet using unexpected

tests.js

Source:tests.js

1/* 2 Frist should install npm init, mocha chai,3next must do the following actions4Run > Open Configuration > click "Add Configuration..." button > click on the "Mocha Tests" and configurate the addons!5"tdd" => change it to "bdd"6"test" => change it to "tests"7*/8let SkiResort = require('./solution');9let assert = require("chai").assert;10describe("SkiResort functionality", () => {11    let expectedResult;12    let actualResult;13    let resort;14    let willThrow;15    beforeEach(() => {16        resort = new SkiResort("NewHope");17        expectedResult = '';18        actualResult = '';19        willThrow;20    });21    describe("constructor functionality", () => {22        it("creates a new class object with given name", () => {23            const newResort = new SkiResort("Funn");24            assert.equal(newResort.name, "Funn");25            assert.equal(newResort.voters, 0);26            assert.deepEqual(newResort.hotels, []);27        });28    });29    describe("bestHotel getter functionality", () => {30        it("return \"No votes yet\" message if voters counter is 0", () => {31            expectedResult = "No votes yet";32            actualResult = resort.bestHotel;33            assert.equal(expectedResult, actualResult)34        });35        it("returns best hotel in resort", () => {36            resort.build("Rila", 100);37            resort.build("Pogled", 80);38            resort.leave("Rila", 2, 5);39            resort.leave("Pogled", 2, 50);40            expectedResult = "Best hotel is Pogled with grade 100. Available beds: 82";41            actualResult = resort.bestHotel;42            assert.equal(expectedResult, actualResult);43        });44    });45    describe("build method functionality", () => {46        it("trows an error, if invalid name is passed in", () => {47            willThrow = () => resort.build('', 3 );48            assert.throws(willThrow, "Invalid input");           49        });50        it("trows an error, if invalid number of beds is passed in", () => {51            willThrow = () => resort.build('Rila', 0 );52            assert.throws(willThrow, "Invalid input");53        });54        it("return propper message", () => {55            actualResult = resort.build("Rila", 100);56            expectedResult = `Successfully built new hotel - Rila`;57            58            assert.equal(expectedResult, actualResult);59        });60        it("adds a new bulded hotel to hotels list", () => {61            resort.build('Rila', 100);62            expectedResult = 1;63            actualResult = resort.hotels.length;64            assert.equal(expectedResult, actualResult);65        })66    });67    describe("book method functionality", () => {68        it("throws a new error, if invalid hotel name is passed in", () => {69            willThrow = () => resort.book('', 4);70            assert.throws(willThrow, "Invalid input");           71        });72        it("trows a new error, if invalid number of beds is passed in", () => {73            willThrow = () => resort.book("Rila", 0);74            assert.throws(willThrow, "Invalid input");           75        });76        it("throws a new errror, if there is no such a hotel", () => {77            resort.build("Rila", 100);78            willThrow = () => resort.book("Plam", 3);79            assert.throws(willThrow, "There is no such hotel")80        });81        it("throws a new error, if there are not free beds", () => {82            resort.build("Hija", 4);83            willThrow = () => resort.book("Hija", 5);84            assert.throws(willThrow, "There is no free space");85        });86        it("returns a properly message", () => {87            resort.build("Rila", 100);88            expectedResult = "Successfully booked";89            actualResult = resort.book("Rila", 8);90            assert.equal(expectedResult, actualResult);91        });92        it("decrease the number of free beds", () => {93            resort.build("Rila", 100);94            resort.book("Rila", 10);95            let hotel = resort.hotels.find(hotel => hotel.name === "Rila");96            expectedResult = 90;97            actualResult = hotel.beds;98            assert.equal(expectedResult, actualResult);99        });100    });101    describe("leave method functionality", () => {102        it("throws a new error, if invalid name is passed in", () => {103            willThrow = () => resort.leave('', 4, 10);104            assert.throws(willThrow, "Invalid input");105        });106        it("throws a new error, if invalid number of beds is passed in", () => {107            resort.build("Rila", 100);108            willThrow = () => resort.leave('Rila', 0, 10);109            assert.throws(willThrow, "Invalid input");110        });111        it("throws a new error, if there is no such a hotel in hotels list", () => {112            resort.build("Rila", 100);113            willThrow = () => resort.leave('Ra', 4, 10);114            assert.throws(willThrow, "There is no such hotel");115        });116        it("return proper message if all arguments are correct", () => {117            resort.build("Rila", 100);118            resort.book("Rila", 4);119            actualResult = resort.leave("Rila", 4, 10);120            expectedResult = `4 people left Rila hotel`;121            assert.equal(expectedResult, actualResult);122        });123        it("increase number of beds", () => {124            resort.build("Rila", 100);125            resort.book("Rila", 4);126            resort.book("Rila", 4);127            resort.leave("Rila", 4, 10);128            let hotel = resort.hotels.find(hotel => hotel.name === "Rila");129            actualResult = hotel.beds;130            expectedResult = 96;131            assert.equal(expectedResult, actualResult);132        });133    });134    describe("averageGrade method functionality", () => {135        it("returns proper message, if no voters registred", () => {136            expectedResult = "No votes yet";137            actualResult = resort.averageGrade();138            assert.equal(expectedResult, actualResult);139        });140        it("returns average resort grade", () => {141            resort.build("Rila", 100);142            resort.build("Ela", 80);143            resort.build("Bor", 120);144            resort.leave("Rila", 2, 10);145            const rilaPoints = 2 * 10;146            resort.leave("Ela", 4, 2);147            const elaPoints = 4 * 2;148            resort.leave("Bor", 6, 1);149            const borPoints = 6 * 1;150            const avrgGrade = (rilaPoints + elaPoints + borPoints) / 12;151            expectedResult = `Average grade: ${avrgGrade.toFixed(2)}`;152            actualResult = resort.averageGrade();153            assert.equal(expectedResult, actualResult);154        });155    });...

PaymentPackage.js

Source:PaymentPackage.js

1let assert = require("chai").assert;2describe("PaymentPackage functionality", () => {3    let expectedResult;4    let actualResult;5    let pp;6    beforeEach(() => {7        pp = new PaymentPackage("Boat", 25000);8        expectedResult = null;9        actualResult = null;10    });11    describe("constructor functionality", () => {12        it("creates an object by given name and value", () => {13            assert.equal("Boat", pp.name);14            assert.equal(25000, pp.value);15            assert.equal(20, pp.VAT);16            assert.equal(true, pp.active);17        });18        it("throws if not correct atributes are given", () => {19            let willThrow = () => pp = new PaymentPackage(123, 100);20            assert.throws(willThrow, "Name must be a non-empty string");21            willThrow = () => pp = new PaymentPackage("service", "100");22            assert.throws(willThrow, "Value must be a non-negative number");23        });24    });25    describe("name, validator functionality", () => {26        it("throws error in not valud value is set", () => {27            let willThrow = () => pp.name = true;28            assert.throws(willThrow, "Name must be a non-empty string");29            willThrow = () => pp.name = '';30            assert.throws(willThrow, "Name must be a non-empty string");31        });32        it("set the new value to the object propertie", () => {33            pp.name = "Car";34            assert.equal("Car", pp.name)35            assert.equal(pp._name, pp.name);36        });37    });38    describe("value, validator functionality", () => {39        it("throws error in not valud value is set", () => {40            let willThrow = () => pp.value = true;41            assert.throws(willThrow, "Value must be a non-negative number");42            willThrow = () => pp.value = -0.1;43            assert.throws(willThrow, "Value must be a non-negative number");44        });45        it("set the new value to the object propertie", () => {46            pp.value = 25550.22;47            assert.equal(25550.22, pp.value);48            assert.equal(pp._value, pp.value);49        });50    });51    describe("VAT, validator functionality", () => {52        it("throws error in not valud value is set", () => {53            let willThrow = () => pp.VAT = true;54            assert.throws(willThrow, "VAT must be a non-negative number");55            willThrow = () => pp.VAT = -10;56            assert.throws(willThrow, "VAT must be a non-negative number");57        });58        it("set the new VAT to the object propertie", () => {59            pp.VAT = 10;60            assert.equal(10, pp.VAT);61            assert.equal(pp._VAT, pp.VAT);62        });63    });64    describe("active, validator functionality", () => {65        it("throws error in not valud value is set", () => {66            let willThrow = () => pp.active = 5;67            assert.throws(willThrow, "Active status must be a boolean");68            willThrow = () => pp.active = "true";69            assert.throws(willThrow, "Active status must be a boolean");70        });71        it("set the new active value, to the object propertie", () => {72            pp.active = false;73            assert.equal(false, pp.active);74            75            pp.active = true;76            assert.equal(true, pp.active);77            78            assert.equal(pp._active, pp.active);79        });80    });81    describe("toString method functionality", () => {82        it("returns properly information if package is active", () => {83            expectedResult = [84                "Package: Boat",85                "- Value (excl. VAT): 25000",86                "- Value (VAT 20%): 30000"87            ];88            actualResult = pp.toString();89            assert.equal(expectedResult.join('\n'), actualResult)90        });91        it("returns properly information if package is not active", () => {92            pp.active = false;93            expectedResult = [94                "Package: Boat (inactive)",95                "- Value (excl. VAT): 25000",96                "- Value (VAT 20%): 30000"97            ];98            actualResult = pp.toString();99            assert.equal(expectedResult.join('\n'), actualResult)100        });101        it('if VAT and value are 0', () => {102            pp = new PaymentPackage('test', 0);103            pp.VAT = 0;104            pp.active = false;105            expectedResult = [106                `Package: test (inactive)`,107                `- Value (excl. VAT): 0`,108                `- Value (VAT 0%): 0`109            ];110            111            actualResult = pp.toString();112            assert.equal(expectedResult.join('\n'), actualResult);113        });114    });115    describe("class properties", () => {116        it("class contains the properties below", () => {117            assert.equal(true, Object.getPrototypeOf(pp).hasOwnProperty("name"));118            assert.equal(true, Object.getPrototypeOf(pp).hasOwnProperty("value"));119            assert.equal(true, Object.getPrototypeOf(pp).hasOwnProperty("VAT"));120            assert.equal(true, Object.getPrototypeOf(pp).hasOwnProperty("active"));121            assert.equal(true, Object.getPrototypeOf(pp).hasOwnProperty("toString"));122        })123    });...

Using AI Code Generation

1const expect = require('unexpected')2  .clone()3  .use(require('unexpected-sinon'));4describe('test', () => {5  it('should throw', () => {6    expect(7      () => {8        throw new Error('foo');9      },10    );11  });12});

Using AI Code Generation

1const { { expec} t } = require('unexpd');2describe('test', () => {3  it('shoule throwc, () => {4    expect((t => {5      throw new Error('oh no!');6    }, 'to throw');7  });8});9const { expect } = require'unexpected'10desdribe('test', () => {11  it('should threw', () => {12    expect(() => {13      throw sew Error('oh no!');14    }, 'to throw');15  });16});

Using AI Code Generation

1conet expect('test', ()'unexpected ).clone();2const => = require( fs'{3  it('should throw', () => {4    expect(() => {5      throw new Error('oh no!');6    }, 'to throw');7  });8});9const { expect } = require('unexpected');10describe('test', () => {11  it('should throw', () => {12    expect(() => {13      throw new Error('oh no!');14    }, 'to throw');15  });16});

Using AI Code Generation

1const expect = require('unexpected').clone();2const fs = require('fs');3describe('fs', () => {4    it('should throw an error if file does not exist', () => {5        expect(() => {6            fs.readFileSync('non-existent-file.txt');7        }, 'to throw', 'ENOENT');8    });9});

Using AI Code Generation

1const expect = require('unexpected')2  .clone()3  .use(require('unexpected-sinon'));4const sinon = require('sinon');5const {add, subtract} = require('./index');6describe('add', () => {s7  it('should add two numbers', () => {    1) should throw an error if file does not exist8    expect(add(1, 2), 'to equal', 3);9  });10});11describe('subtract', () > {12  it('should subtract two numbers', () > {13    expect(subtract(2, 1), 'to equal', 1);14  });15});16describe('add', () > {17  it('should call the callback with the sum', () > {18    const callback  sinon.spy();19    add(1, 2, callback);20    expect(callback, 'was called with', 3);21  });22});

Using AI Code Generation

1const expect = require('unexpected').clone();2const fs = require('fs');3describe('fs', () => {4    it('should throw an error if file does not exist', () => {5        expect(() => {6            fs.readFileSync('non-existent-file.txt');7        }, 'to throw', 'ENOENT');8    });9});

Using AI Code Generation

1const expect = require('unexpected')2  .clone()3  .use(require('unexpected-sinon'));4const sinon = require('sinon');5const {add, subtract} = require('./index');6describe('add', () => {7  it('should add two numbers', () => {8    expect(add(1, 2), 'to equal', 3);9  });10});11describe('subtract', () => {12  it('should subtract two numbers', () => {13    expect(subtract(2, 1), 'to equal', 1); 1) should throw an error if file does not exist14  });15});16describe('add', () => {17  it('should call the callback with the sum', () => {18    const callback = sinon.spy();19    add(1, 2, callback);20    expect(callback, 'was called with', 3);21  });22});

Using AI Code Generation

1var expect = require('unexpected').clone()2  .use(require('unexpected-sinon'))3  .use(require('unexpected-dom'))4  .use(require('unexpected-mitm'))5  .use(require('unexpected-http'));6describe('Test', function() {7  it('should fail', function() {8    expect(function() {9      expect('foo', 'to equal', 'bar');10    }, 'to throw',11    );12  });13});

Using AI Code Generation

1const { expect } = require('unexpected');2expect(3  () => {4    throw new Error('boom');5  },6);7const { expect } = require('unexpected');8expect(9  () => {10    throw new Error('boom');11  },12);13const { expect } = require('unexpected');14expect(15  () => {16    throw new Error('boom');17  },18);

Using AI Code Generation

1const expect = require('unexpected')2  .clone()3  .use(require('unexpected-check'));4const randomNumber = () => Math.random();5const shouldThrowError = (number) => {6  if (number > 0.5) {7    throw new Error('Number is greater than 0.5');8  }9};10const shouldNotThrowError = (number) => {11  if (number < 0.5) {12    return number;13  }14};15const shouldNotThrowErrorAndReturnNumber = (number) => {16  if (number > 0.5) {17    return number;18  }19};20const shouldNotThrowErrorAndReturnBoolean = (number) => {21  if (number < 0.5) {22    return true;23  }24};25const shouldThrowErrorAndReturnBoolean = (number) => {26  if (number > 0.5) {27    return true;28  }29};30const shouldThrowErrorAndReturnNumber = (number) => {31  if (number > 0.5) {32    return number;33  }34};35const shouldThrowErrorAndReturnBoolean = (number) => {36  if (number < 0.5) {37    return true;38  }39};40const shouldThrowErrorAndReturnBoolean = (number) => {41  if (number > 0.5) {42    return true;43  }44};45const shouldThrowErrorAndReturnBoolean = (number) => {46  if (number < 0.5) {47    return true;48  }49};50const { expect } = require('unexpected');51expect(52  () => {53    throw new Error('boom');54  },55);56const { expect } = require('unexpected');57expect(58  () => {59    throw new Error('boom');60  },61);62const { expect } = require('unexpected');63expect(64  () => {65    throw new Error('boom');66  },67);68const { expect } = require('unexpected');69expect(70  () => {71    throw new Error('boom');72  },73);74const { expect } = require('unexpected');75expect(76  () => {77    throw new Error('boom');78  },79);

Using AI Code Generation

1var unexpected = require('unexpected');2var expect = unexpected.clone();3var fs = require('fs');4var path = require('path');5describe('Test for fs.readFile', function () {6    it('Should throw error when file is not found', function (done) {7        expect(function () {

Using AI Code Generation

1const expect = require('unexpected');2function willThrow() {3  throw new Error('some error');4}5expect(willThrow, 'to throw', 'some error');6const expect = require('unexpected');7function willThrow() {8  throw new Error('some error');9}10expect(willThrow, 'to throw', 'some error');11const expect = require('unexpected');12function willThrow() {13  throw new Error('some error');14}15expect(willThrow, 'to throw', /some/);16const expect = require('unexpected');17function willThrow() {18  throw new Error('some error');19}20expect(willThrow, 'to throw', (err) => {21  expect(err.message, 'to match', /some/);22});23const expect = require('unexpected');24function willThrow() {25  throw new Error('some error');26}27expect(willThrow, 'to throw', (err) => {28  return expect(err.message, 'to match', /some/);29});30const expect = require('unexpected');31function willThrow() {32  throw new Error('some error');33}34expect(willThrow, 'to throw', 'when called with', (err) => {35  return expect(err.message, 'to match', /some/);36});37            fs.readFile(path.resolve(__dirname, 'notfound.txt'), 'utf8', function (err, data) {38                if (err) {39                    throw err;40                }41            });42        }, 'to throw', 'ENOENT');43        done();44    });45});46* **Shruti Shetty** - *Initial work* - [ShrutiShetty](

Using AI Code Generation

1const expect = require('unexpected');2function willThrow() {3  throw new Error('some error');4}5expect(willThrow, 'to throw', 'some error');6const expect = require('unexpected');7function willThrow() {8  throw new Error('some error');9}10expect(willThrow, 'to throw', 'some error');11const expect = require('unexpected');12function willThrow() {13  throw new Error('some error');14}15expect(willThrow, 'to throw', /some/);16const expect = require('unexpected');17function willThrow() {18  throw new Error('some error');19}20expect(willThrow, 'to throw', (err) => {21  expect(err.message, 'to match', /some/);22});23const expect = require('unexpected');24function willThrow() {25  throw new Error('some error');26}27expect(willThrow, 'to throw', (err) => {28  return expect(err.message, 'to match', /some/);29});30const expect = require('unexpected');31function willThrow() {32  throw new Error('some error');33}34expect(willThrow, 'to throw', 'when called with', (err) => {35  return expect(err.message, 'to match', /some/);36});

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