Kumite (ko͞omiˌtā) is the practice of taking techniques learned from Kata and applying them through the act of freestyle sparring.
You can create a new kumite by providing some initial code and optionally some test cases. From there other warriors can spar with you, by enhancing, refactoring and translating your code. There is no limit to how many warriors you can spar with.
A great use for kumite is to begin an idea for a kata as one. You can collaborate with other code warriors until you have it right, then you can convert it to a kata.
def Calculator(c = "+", a = 0, b = 1): try: return eval(str(a) + c + str(b)) except: return 0#include <iostream>using namespace std;string die() {return "Invalid Input!";}string Calculator(int choice, int x, int y) {cout << "Welcome to simple calculator!\n";cout << "1. Addition\n2. Subtraction\n3. Multiplication\n4. Division\n5. Modulus\n";// YOU: Write code to finish this program (Input is given, don't use cin)// Instead of cout << x + y << endl; for example, do return (x + y);// You can call the die function with die();}- def Calculator(c = "+", a = 0, b = 1):
- try: return eval(str(a) + c + str(b))
- except: return 0
test.assert_equals(Calculator("/", 1, 0), 0) test.assert_equals(Calculator("+", 42, 11), 53) test.assert_equals(Calculator("-", 6, 50), -44) test.assert_equals(Calculator("/", 32, 2), 16) test.assert_equals(Calculator("*", 25, 5), 125) test.assert_equals(Calculator(123, 2), 0)// TODO: Replace examples and use TDD by writing your own testsDescribe(Sample_Tests){It(Test){Assert::That(Calculator(0, 420, 420), Equals("Invalid Input!"));Assert::That(Calculator(1, 1, 1), Equals("2"));Assert::That(Calculator(1, 16, 9), Equals("25"));Assert::That(Calculator(2, 1, 1), Equals("0"));Assert::That(Calculator(2, 57, 62), Equals("-5"));Assert::That(Calculator(3, -10, 10), Equals("-100"));Assert::That(Calculator(3, -12, -12), Equals("144"));Assert::That(Calculator(4, 2, 4), Equals("0"));Assert::That(Calculator(4, 4, 2), Equals("2"));Assert::That(Calculator(4, 1, 0), Equals("Invalid Input!"));Assert::That(Calculator(5, 3, 5), Equals("3"));Assert::That(Calculator(5, 5, 3), Equals("2"));Assert::That(Calculator(6, 69, 69), Equals("Invalid Input!"));}};- test.assert_equals(Calculator("/", 1, 0), 0)
- test.assert_equals(Calculator("+", 42, 11), 53)
- test.assert_equals(Calculator("-", 6, 50), -44)
- test.assert_equals(Calculator("/", 32, 2), 16)
- test.assert_equals(Calculator("*", 25, 5), 125)
- test.assert_equals(Calculator(123, 2), 0)
Function names should start with lower case.
const should be used instead of var since the function isn't changing.
const greet = () => "Hello World!";function Greet(){return "Hello World!"}- const greet = () => "Hello World!";
// Since Node 10, we're using Mocha. // You can use `chai` for assertions. const chai = require("chai"); const assert = chai.assert; //Uncomment the following line to disable truncating failure messages for deep equals, do: chai.config.truncateThreshold = 0; //Since Node 12, we no longer include assertions from our deprecated custom test framework by default. // Uncomment the following to use the old assertions: const Test = require("@codewars/test-compat"); describe("Solution", function() { it("should test for something", function() { Test.assertEquals("Hello World!", "Hello World!"); assert.strictEqual("Hello World!", "Hello World!"); }); });- // Since Node 10, we're using Mocha.
- // You can use `chai` for assertions.
- const chai = require("chai");
- const assert = chai.assert;
// Uncomment the following line to disable truncating failure messages for deep equals, do:// chai.config.truncateThreshold = 0;// Since Node 12, we no longer include assertions from our deprecated custom test framework by default.- //Uncomment the following line to disable truncating failure messages for deep equals, do:
- chai.config.truncateThreshold = 0;
- //Since Node 12, we no longer include assertions from our deprecated custom test framework by default.
- // Uncomment the following to use the old assertions:
// const Test = require("@codewars/test-compat");- const Test = require("@codewars/test-compat");
- describe("Solution", function() {
- it("should test for something", function() {
// Test.assertEquals(1 + 1, 2);// assert.strictEqual(1 + 1, 2);- Test.assertEquals("Hello World!", "Hello World!");
- assert.strictEqual("Hello World!", "Hello World!");
- });
- });
Can be moved onto a single line since its a lambda operation.
import codewars_test as test # TODO Write tests import solution # or from solution import example # test.assert_equals(actual, expected, [optional] message) @test.describe("Check:") def test_group(): @test.it("Some simple cases") def test_case(): test.assert_equals(power(2,5), 2**5) test.assert_equals(power(3,50), 3**50) test.assert_equals(power(2,200), 2**200) test.assert_equals(power(200,0), 1) test.assert_equals(power(2, -5), 2 ** -5) test.assert_equals(power(-3, 5), (-3) ** 5) test.assert_equals(power(2, -200), 2 ** -200) test.assert_equals(power(-200, 0), 1)- import codewars_test as test
- # TODO Write tests
- import solution # or from solution import example
- # test.assert_equals(actual, expected, [optional] message)
- @test.describe("Check:")
- def test_group():
- @test.it("Some simple cases")
- def test_case():
- test.assert_equals(power(2,5), 2**5)
- test.assert_equals(power(3,50), 3**50)
- test.assert_equals(power(2,200), 2**200)
- test.assert_equals(power(200,0), 1)
- test.assert_equals(power(2, -5), 2 ** -5)
- test.assert_equals(power(-3, 5), (-3) ** 5)
- test.assert_equals(power(2, -200), 2 ** -200)
- test.assert_equals(power(-200, 0), 1)