Exercicios terminados do dia

Semana19/Aula1/epps-testes-ts/.gitignore

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+node_modules/
+build/
+.vscode/
+
+.env

Semana19/Aula1/epps-testes-ts/jest.config.js

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+module.exports = {
+   roots: ["<rootDir>/tests"],
+   transform: {
+      "^.+\\.tsx?$": "ts-jest",
+   },
+   testRegex: "(/__tests__/.*|(\\.|/)(test|spec))\\.tsx?$",
+   moduleFileExtensions: ["ts", "tsx", "js", "jsx", "json", "node"],
+};

Semana19/Aula1/epps-testes-ts/package.json

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+{
+   "name": "jest-template",
+   "version": "1.0.0",
+   "description": "",
+   "main": "index.js",
+   "scripts": {
+      "dev": "ts-node-dev --transpile-only --ignore-watch node_modules ./src/index.ts",
+      "test": "jest"
+   },
+   "author": "",
+   "license": "ISC",
+   "dependencies": {
+      "chalk": "^4.1.0",
+      "dotenv": "^8.2.0",
+      "knex": "^0.21.1",
+      "mysql": "^2.18.1"
+   },
+   "devDependencies": {
+      "@types/jest": "^26.0.22",
+      "@types/knex": "^0.16.1",
+      "@types/node": "^14.0.6",
+      "jest": "^26.6.3",
+      "ts-jest": "^26.5.5",
+      "ts-node-dev": "^1.0.0-pre.44",
+      "typescript": "^3.9.3"
+   }
+}

Semana19/Aula1/epps-testes-ts/src/index.ts

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+import knex from 'knex'
+import { config } from 'dotenv'
+import { User } from './model/types';
+
+config()
+
+export const isEven = (integer: number): any => integer % 2 === 0
+
+export const connection = knex({
+   client: "mysql",
+   connection: {
+      host: process.env.DB_HOST,
+      user: process.env.DB_USER,
+      password: process.env.DB_PASSWORD,
+      database: process.env.DB_SCHEMA,
+      port: 3306,
+      multipleStatements: true
+   },
+});
+
+//Exercicio 1
+//b)
+
+export function performPurchase(user: User, value: number): User | undefined {
+   if(user.saldo >= value){
+      const saldo = user.saldo - value
+      const result: User = {name: user.name, saldo: saldo}
+      return(result)
+   }   
+   else undefined
+}
+
+// connection.raw(`
+//    SHOW TABLES;
+
+//    SHOW DATABASES;
+// `).then(console.log)

Semana19/Aula1/epps-testes-ts/src/model/types.ts

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+
+//Exercicio 1
+//a)
+
+export interface User {
+    name: string,
+    saldo: number
+}

Semana19/Aula1/epps-testes-ts/tests/demo.ts

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+import { isEven } from "../src";
+import { red, blue, green, yellow } from "chalk"
+
+function test(
+   name:string,
+   receivedValue: any,
+   expectedValue: any
+):void{
+   console.log(
+      "\n",
+      blue(name),
+      expectedValue === receivedValue ? green("PASS") : red("FAIL")
+   )
+}
+
+console.log("\n", yellow("Running tests..."));
+
+test(
+   "Test 1 - Return true for number 10",
+   isEven(10),
+   true
+)
+
+test(
+   "Test 2 - Return false for number 11",
+   isEven(11),
+   false
+)
+
+test(
+   "Test 3 - Return false for number 10.5",
+   isEven(10.5),
+   false
+)
+
+console.log("\n", yellow("...done!"));

Semana19/Aula1/epps-testes-ts/tests/index.test.ts

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+import { connection, isEven, performPurchase } from "../src"
+import { User } from "../src/model/types"
+//Exercicio 2
+describe("performPurchase", () => {
+
+   test("testes de inserção", () => {
+
+
+      //a)
+      let entrada: User = { name: "José", saldo: 40 }
+      let saida: User = { name: "José", saldo: 10 }
+
+      expect(performPurchase(entrada, 30)).toStrictEqual(saida)
+
+      //b)
+      entrada = { name: "Carol", saldo: 30 }
+      saida = { name: "Carol", saldo: 0 }
+
+      expect(performPurchase(entrada, 30)).toStrictEqual(saida)
+
+      //c)
+      entrada = { name: "Felipe Moura Brasil", saldo: 20 }
+      expect(performPurchase(entrada, 30)).toStrictEqual(undefined)
+   })
+})
+
+// describe("Random tests...", () => {
+
+//    test("...to learn some keywords", () => {
+//       expect(2 + 3).toBe(5) 
+//       expect([]).not.toBe([])
+
+//       const emptyList: Array<any> = []
+//       const anotherEmptyList: Array<any> = emptyList
+
+//       expect(emptyList).toBe(anotherEmptyList) // passa com louvor (ambos objetos apontam para o mesmo endereço na memória do processo)
+//       expect(emptyList.length).toBe(0)
+
+//       expect([]).toEqual([]) // falharia com o toBe
+
+//       expect(2 + 3).toBeGreaterThan(4)
+//       expect(2 + 3).toBeLessThan(444000)
+//       expect([1, 2, 3]).toContain(2)
+//       expect([[1], [2], [3]]).not.toContain([2])
+//       expect([[1], [2], [3]]).toContainEqual([2]) // falharia com o toContain
+
+//    })
+// })
+
+// describe("async & error handling", () => {
+
+//    test("Should connect to MySql", async () => {
+//       const [tables] = await connection
+//          .raw("SHOW TABLES")
+
+//       console.table(tables)
+
+//       expect(tables.length).toBeGreaterThan(0)
+//    })
+
+//    test("Error when table does not exist", async()=>{
+
+//       expect.assertions(2)
+
+//       try {
+//          const users = await connection("usuarioss")
+
+//          expect(users).toBeDefined() // não será acionado
+
+//       } catch (error) {
+//          expect(error.code).toBe("ER_NO_SUCH_TABLE")
+//          expect(error).toBeInstanceOf(Error)
+//       }
+//    })
+
+//    afterAll(() => { 
+//       connection.destroy() 
+//    })
+// })

Semana19/Aula1/epps-testes-ts/tsconfig.json

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+{
+  "compilerOptions": {
+    "target": "es6" ,
+    "module": "commonjs",
+    "outDir": "./build" ,
+    "rootDir": "./" ,
+    "strict": true ,
+    "sourceMap": true,
+    "removeComments": true,
+    "esModuleInterop": true ,
+    "forceConsistentCasingInFileNames": true 
+  }
+}