ex-1: inline airSpeedVelocity at speeds

Author: kaiosilveira

src/functions-into-class-hierarchy/index.js

@@ -5,9 +5,5 @@ export function plumages(birds) {
 }
 
 export function speeds(birds) {
-  return new Map(birds.map(b => [b.name, airSpeedVelocity(b)]));
-}
-
-export function airSpeedVelocity(bird) {
-  return createBird(bird).airSpeedVelocity;
+  return new Map(birds.map(b => createBird(b)).map(b => [b.name, b.airSpeedVelocity]));
 }

src/functions-into-class-hierarchy/index.test.js

@@ -1,4 +1,4 @@
-import { speeds, airSpeedVelocity, plumages } from './index';
+import { speeds, plumages } from './index';
 
 describe('plumages', () => {
   it('should return a map containing the plumage of all birds in the list', () => {
@@ -23,38 +23,6 @@ describe('plumages', () => {
   });
 });
 
-describe('airSpeedVelocity', () => {
-  it('should return 35 for EuropeanSwallow', () => {
-    const bird = { type: 'EuropeanSwallow' };
-    expect(airSpeedVelocity(bird)).toBe(35);
-  });
-
-  it('should return 38 for AfricanSwallow with 1 coconut', () => {
-    const bird = { type: 'AfricanSwallow', numberOfCoconuts: 1 };
-    expect(airSpeedVelocity(bird)).toBe(38);
-  });
-
-  it('should return 36 for AfricanSwallow with 2 coconuts', () => {
-    const bird = { type: 'AfricanSwallow', numberOfCoconuts: 2 };
-    expect(airSpeedVelocity(bird)).toBe(36);
-  });
-
-  it('should return 0 for nailed NorwegianBlueParrot', () => {
-    const bird = { type: 'NorwegianBlueParrot', isNailed: true };
-    expect(airSpeedVelocity(bird)).toBe(0);
-  });
-
-  it('should return 10 for NorwegianBlueParrot with voltage 0', () => {
-    const bird = { type: 'NorwegianBlueParrot', voltage: 0 };
-    expect(airSpeedVelocity(bird)).toBe(10);
-  });
-
-  it('should return 20 for NorwegianBlueParrot with voltage 100', () => {
-    const bird = { type: 'NorwegianBlueParrot', voltage: 100 };
-    expect(airSpeedVelocity(bird)).toBe(20);
-  });
-});
-
 describe('speeds', () => {
   it('should return a map containing the air speed velocity of all birds in the list', () => {
     const birds = [