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Make 08 tests pass

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This commit is contained in:
marleyrae 2023-06-19 16:55:57 -07:00
parent 6b4c26c0e7
commit 288db60427
2 changed files with 81 additions and 75 deletions
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46
08_calculator/calculator.js
View file

@ -1,26 +1,32 @@
const add = function() {
};
const add = function (...numbers) {
return numbers.reduce((res, cur) => res + cur, 0)
}
const subtract = function() {
};
const subtract = function (...numbers) {
return numbers.reduce((res, cur) => res - cur)
}
const sum = function() {
};
const sum = function (numbers) {
return add(...numbers)
}
const multiply = function() {
const multiply = function (...numbers) {
return numbers.reduce((res, cur) => res * cur)
}
};
const power = function (...numbers) {
return numbers.reduce((res, cur) => res ** cur)
}
const power = function() {
};
const factorial = function() {
};
const factorial = function (number) {
if (number < 0) {
return -1
} else if (number === 0) {
return 1
} else {
return number * factorial(number - 1)
}
}
// Do not edit below this line
module.exports = {
@ -29,5 +35,5 @@ module.exports = {
sum,
multiply,
power,
factorial
};
factorial,
}

110
08_calculator/calculator.spec.js
View file

@ -1,77 +1,77 @@
const calculator = require('./calculator');
const calculator = require('./calculator')
describe('add', () => {
test('adds 0 and 0', () => {
expect(calculator.add(0,0)).toBe(0);
});
test('adds 0 and 0', () => {
expect(calculator.add(0, 0)).toBe(0)
})
test.skip('adds 2 and 2', () => {
expect(calculator.add(2,2)).toBe(4);
});
test('adds 2 and 2', () => {
expect(calculator.add(2, 2)).toBe(4)
})
test.skip('adds positive numbers', () => {
expect(calculator.add(2,6)).toBe(8);
});
});
test('adds positive numbers', () => {
expect(calculator.add(2, 6)).toBe(8)
})
})
describe('subtract', () => {
test.skip('subtracts numbers', () => {
expect(calculator.subtract(10,4)).toBe(6);
});
});
test('subtracts numbers', () => {
expect(calculator.subtract(10, 4)).toBe(6)
})
})
describe('sum', () => {
test.skip('computes the sum of an empty array', () => {
expect(calculator.sum([])).toBe(0);
});
test('computes the sum of an empty array', () => {
expect(calculator.sum([])).toBe(0)
})
test.skip('computes the sum of an array of one number', () => {
expect(calculator.sum([7])).toBe(7);
});
test('computes the sum of an array of one number', () => {
expect(calculator.sum([7])).toBe(7)
})
test.skip('computes the sum of an array of two numbers', () => {
expect(calculator.sum([7,11])).toBe(18);
});
test('computes the sum of an array of two numbers', () => {
expect(calculator.sum([7, 11])).toBe(18)
})
test.skip('computes the sum of an array of many numbers', () => {
expect(calculator.sum([1,3,5,7,9])).toBe(25);
});
});
test('computes the sum of an array of many numbers', () => {
expect(calculator.sum([1, 3, 5, 7, 9])).toBe(25)
})
})
describe('multiply', () => {
test.skip('multiplies two numbers', () => {
expect(calculator.multiply(2,4)).toBe(8);
});
test('multiplies two numbers', () => {
expect(calculator.multiply(2, 4)).toBe(8)
})
test.skip('multiplies several numbers', () => {
expect(calculator.multiply(2,4,6,8,10,12,14)).toBe(645120);
});
});
test('multiplies several numbers', () => {
expect(calculator.multiply(2, 4, 6, 8, 10, 12, 14)).toBe(645120)
})
})
describe('power', () => {
test.skip('raises one number to the power of another number', () => {
expect(calculator.power(4,3)).toBe(64); // 4 to third power is 64
});
});
test('raises one number to the power of another number', () => {
expect(calculator.power(4, 3)).toBe(64) // 4 to third power is 64
})
})
describe('factorial', () => {
test.skip('computes the factorial of 0', () => {
expect(calculator.factorial(0)).toBe(1); // 0! = 1
});
test('computes the factorial of 0', () => {
expect(calculator.factorial(0)).toBe(1) // 0! = 1
})
test.skip('computes the factorial of 1', () => {
expect(calculator.factorial(1)).toBe(1);
});
test('computes the factorial of 1', () => {
expect(calculator.factorial(1)).toBe(1)
})
test.skip('computes the factorial of 2', () => {
expect(calculator.factorial(2)).toBe(2);
});
test('computes the factorial of 2', () => {
expect(calculator.factorial(2)).toBe(2)
})
test.skip('computes the factorial of 5', () => {
expect(calculator.factorial(5)).toBe(120);
});
test('computes the factorial of 5', () => {
expect(calculator.factorial(5)).toBe(120)
})
test.skip('computes the factorial of 10', () => {
expect(calculator.factorial(10)).toBe(3628800);
});
});
test('computes the factorial of 10', () => {
expect(calculator.factorial(10)).toBe(3628800)
})
})