Implement matcha b00tc4mp#391

staff/pere-hernandez/prototype/matcha/assert.js

@@ -0,0 +1,18 @@
+function assert(value, target){
+    console.assert(value === target, value + ' equals ' + target)
+}
+
+function error(error, type, message){
+    console.assert(error.name === type, 'name')
+    console.assert(error.message === message, 'message')
+}
+
+function instanceOf(value, type) {
+    console.assert(value instanceof type === true, value + ' is instance of ' +  type)
+}
+
+module.exports = {
+    assert: assert,
+    error: error,
+    instanceOf: instanceOf
+}

staff/pere-hernandez/prototype/matcha/matcha.js

@@ -0,0 +1,50 @@
+console.log('MATCHA 🍵')
+
+var matcha = {}
+var logs = []
+
+function describe(title, callback){
+    logs[logs.length] = title
+    console.log(title)
+
+    callback()
+}
+
+function it(title, callback) {
+    var log = '* ' + title
+
+    logs[logs.length] = log
+    console.log(log)
+
+    callback()
+}
+
+function expect(value) {
+    return {
+        toBe: function (expected) {
+            var matches = value === expected
+
+            if (!matches) {
+                var log = '❌ ' + value + ' to be ' + expected.name
+
+                logs[logs.length] = log
+                console.log(log)
+
+                return false
+            }
+            log = '✅ ' + value + ' to be ' + expected.name
+
+            logs[logs.length] = log
+            console.info(log)
+
+            return true
+        }
+    }
+}
+
+matcha.logs = logs
+matcha.describe = describe
+matcha.it = it
+matcha.expect = expect
+
+module.exports = matcha

staff/pere-hernandez/prototype/matcha/matcha.spec.js

@@ -0,0 +1,58 @@
+var assert = require('./assert')
+var matcha = require('./matcha')
+
+console.log('matcha')
+
+
+
+console.log('> describe')
+
+matcha.logs.length = 0
+var run = false
+
+assert.assert(!!matcha.describe, true)
+
+matcha.describe('describe title', function() {
+    run = true
+})
+
+assert.assert(run, true)
+assert.assert(matcha.logs[0], 'describe title')
+
+
+
+console.log('> it')
+
+matcha.logs.length = 0
+run = false
+
+assert.assert(!!matcha.it, true)
+
+matcha.it('it title', function () {
+    run = true
+})
+
+assert.assert(run, true)
+assert.assert(matcha.logs[0], '* it title')
+
+
+
+console.log('> expect toBe (happy path)')
+
+assert.assert(!!matcha.expect, true)
+
+matcha.logs.length = 0
+var result = matcha.expect(10).toBe(10)
+
+assert.assert(result, true)
+assert.assert(matcha.logs[0], '✅ 10 to be 10')
+
+
+
+console.log('< expect toBe (unhappy path)')
+
+matcha.logs.length = 0
+result = matcha.expect(10).toBe(12)
+
+assert.assert(result, false)
+assert.assert(matcha.logs[0], '❌ 10 to be 12')