[siny] 과제 제출 (2번문제는 모르겠음)

src/refactoring/siny/outputTxt/수정전-01_조건부_복잡성.txt

@@ -0,0 +1,17 @@
+🐲
+I have a dog
+undefined
+No animal
+No animal name
+No animal gender
+Lucy is a female dog
+[]
+[ 'banana', 'pineapple' ]
+unknown
+unknown
+cabbage
+Fiesta
+Some Street Name
+undefined
+true
+undefined

src/refactoring/siny/outputTxt/수정전-02_기능_특정하기.txt

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+USER PHONE:
+Country code Phone : +34
+Phone area code: 635
+Phone base number: 538 973
+
+USER DATA:
+User name: Fernando
+User lastname: Aparicio Galende
+User DNI: 12345678S
+User phone: [email protected]
+User email: +34 635 538 973

src/refactoring/siny/outputTxt/수정전-03_부적절한_평가.txt

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+Order: 1
+                Client: shirts
+                Product: shirts
+                TotalAmount: NaN
+
+
+                Arrival in: 5 days.

src/refactoring/siny/outputTxt/수정후-01_조건부_복잡성.txt

@@ -0,0 +1,17 @@
+🐲
+I have a dog
+undefined
+No animal
+No animal name
+No animal gender
+Lucy is a female dog
+[]
+[ 'banana', 'pineapple' ]
+unknown
+unknown
+cabbage
+Fiesta
+Some Street Name
+undefined
+true
+undefined

src/refactoring/siny/outputTxt/수정후-02_기능_특정하기.txt

@@ -0,0 +1,11 @@
+USER PHONE:
+Country code Phone : +34
+Phone area code: 635
+Phone base number: 538 973
+
+USER DATA:
+User name: Fernando
+User lastname: Aparicio Galende
+User DNI: 12345678S
+User phone: [email protected]
+User email: +34 635 538 973

src/refactoring/siny/outputTxt/수정후-03_부적절한_평가.txt

@@ -0,0 +1,7 @@
+Order: 1
+                Client: siny
+                Product: shirts
+                TotalAmount: 94
+
+
+                Arrival in: 5 days.

src/refactoring/siny/refactor1.test.js

@@ -0,0 +1,65 @@
+const execSync = require('child_process').execSync;
+const fs = require('fs');
+const { consoleTestUtils } = require('./testUtils.js');
+
+const { Client, Product, Order, Summary } = require('./수정후-03_부적절한_평가');
+const beforeData = {
+  inputDir: 'src/refactoring',
+  scripts: '수정전-01_조건부_복잡성.js',
+  outputDir: 'src/refactoring/siny/outputTxt',
+};
+const afterData = {
+  inputDir: 'src/refactoring/siny',
+  scripts: '수정후-01_조건부_복잡성.js',
+  outputDir: 'src/refactoring/siny/outputTxt',
+};
+
+const before1 = consoleTestUtils(beforeData.scripts, beforeData.inputDir, beforeData.outputDir);
+
+const after1 = consoleTestUtils(afterData.scripts, afterData.inputDir, afterData.outputDir);
+
+describe('tests', () => {
+  beforeAll(() => {
+    execSync(before1.execSyncArgsForCreateTxtFormConsoleLog());
+    execSync(after1.execSyncArgsForCreateTxtFormConsoleLog());
+  });
+
+  test('01_조건부_복잡성', () => {
+    const beforeTxt = fs.readFileSync(...before1.readOutputTxtArgs);
+    const afterTxt = fs.readFileSync(...after1.readOutputTxtArgs);
+    expect(beforeTxt).toEqual(afterTxt);
+  });
+  // 무엇을 원하는지 모르겠습니다...ㅠㅠ
+  // test('02_기능_특정하기', () => {
+  //   const beforeTxt = fs.readFileSync(...before2.readOutputTxtArgs);
+  //   const afterTxt = fs.readFileSync(...after2.readOutputTxtArgs);
+  //   expect(beforeTxt).toEqual(afterTxt);
+  // });
+
+  test('03_부적절한_평가', () => {
+    const client1 = new Client({
+      name: 'siny',
+      type: 'premium',
+      location: 'USA',
+    });
+    const product1 = new Product({
+      value: 100,
+      name: 'shirts',
+      shipping: 5,
+    });
+    const order1 = new Order({
+      id: '1',
+      value: '???',
+      product: product1,
+      client: client1,
+    });
+
+    const summary = new Summary({ order: order1 });
+
+    expect(summary.printSummary()).toEqual(`Order: 1
+                Client: siny
+                Product: shirts
+                TotalAmount: 94
+                Arrival in: 5 days.`);
+  });
+});

src/refactoring/siny/testUtils.js

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+const path = require('path');
+const fs = require('fs');
+
+const consoleTestUtils = (script, inputDir = './', outputDir = './') => {
+  return {
+    execSyncArgsForCreateTxtFormConsoleLog: () => {
+      if (!fs.existsSync(outputDir)) {
+        fs.mkdirSync(outputDir);
+      }
+      return `node ${path.join(inputDir, script)} > ${path.join(outputDir, script.replace('.js', ''))}.txt`;
+    },
+    readOutputTxtArgs: [path.join(outputDir, `${script.replace('.js', '')}.txt`), 'utf-8'],
+  };
+};
+
+module.exports = {
+  consoleTestUtils,
+};

src/refactoring/siny/utils.js

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+/**
+ * map
+ * */
+const map = (fn, arr) => {
+  const newArr = [];
+  for (let i = 0; i < arr.length; i++) {
+    newArr.push(fn(arr[i], i, [...arr]));
+  }
+  return newArr;
+};
+
+/**
+ * filter
+ * */
+const filter = (condition, arr) => {
+  const newArr = [];
+  for (let i = 0; i < arr.length; i++) {
+    if (condition(arr[i], i, [...arr])) newArr.push(arr[i]);
+  }
+  return newArr;
+};
+
+/**
+ * reduce
+ * */
+const reduce = (fn, init, arr) => {
+  let newValue = init;
+  for (let i = 0; i < arr.length; i++) {
+    newValue = fn(newValue, arr[i], i, [...arr]);
+  }
+  return newValue;
+};
+
+module.exports = {
+  map,
+  filter,
+  reduce,
+};

src/refactoring/siny/utils.test.js

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+const { map, filter, reduce } = require('./utils');
+
+describe('utils', () => {
+  describe('map', () => {
+    it('빈배열을 받으면 빈배열을 반환한다.', () => {
+      expect(map(item => item, [])).toEqual([]);
+    });
+    it('빈배열을 받으면 반환한 배열과 input 배열은 서로 다르다.', () => {
+      const arr = [];
+      expect(map(item => item, arr)).not.toBe(arr);
+    });
+    it('fn=(item)=>({no:item}),arr=[1,2,3] 을 인자로 하면 [{no:1},{no:2},{no:3}] 을 반환한다.', () => {
+      const arr = [1, 2, 3];
+      const fn = item => ({ no: item });
+      expect(map(fn, arr)).toEqual([{ no: 1 }, { no: 2 }, { no: 3 }]);
+    });
+  });
+  describe('filter', () => {
+    it('빈배열을 받으면 빈배열을 반환한다.', () => {
+      expect(filter(() => true, [])).toEqual([]);
+    });
+    it('빈배열을 받으면 반환한 배열과 input 배열은 서로 다르다.', () => {
+      const arr = [];
+      expect(filter(() => true, arr)).not.toBe(arr);
+    });
+    it('condition item => item % 2,arr=[1,2,3] 을 인자로 하면 [1, 3] 을 반환한다.', () => {
+      const arr = [1, 2, 3];
+      const odd = item => item % 2;
+      expect(filter(odd, arr)).toEqual([1, 3]);
+    });
+  });
+  describe('reduce', () => {
+    it('fn:(acc,cur)=>acc+cur,init:0,arr=[1,2,3] 을 인자로 하면 6 을 반환한다.', () => {
+      const arr = [1, 2, 3];
+      const sum = (acc, cur) => acc + cur;
+      expect(reduce(sum, 0, arr)).toEqual(6);
+    });
+    it('fn:(acc,cur)=>({...acc,[crr]:crr}),init:{}, arr=[1,2,3] 을 인자로 하면 {1:1,2:2,3:3} 을 반환한다.', () => {
+      const arr = [1, 2, 3];
+      const ToObject = (acc, cur) => ({ ...acc, [cur]: cur });
+      expect(reduce(ToObject, {}, arr)).toEqual({ 1: 1, 2: 2, 3: 3 });
+    });
+  });
+});