Adding reassure for performance testing

Author: Inbal-Tish

.gitignore

@@ -65,4 +65,5 @@ fastlane/screenshots
 ios/Pods
 ios/Podfile.lock
 
-.eslintcache
+.eslintcache
+.reassure 

package.json

@@ -11,6 +11,7 @@
     "build:docs": "node ./scripts/build-docs.js",
     "e2e": "node ./scripts/test-e2e.js --release",
     "test": "npm run lint && npm run unit",
+    "test:perf": "TEST_RUNNER_ARGS='--testMatch **/*.perf.js' reassure measure",
     "unit": "jest",
     "lint": "eslint src/ example/src --ext .tsx,.ts,.js",
     "release": "node ./scripts/release.js",
@@ -44,6 +45,7 @@
     "@babel/core": "^7.12.9",
     "@babel/eslint-parser": "^7.13.4",
     "@babel/runtime": "^7.12.5",
+    "@testing-library/react-native": "^11.0.0",
     "@tsconfig/docusaurus": "^1.0.4",
     "@types/lodash": "^4.14.170",
     "@types/react": "^17.0.44",
@@ -73,6 +75,7 @@
     "react-native-navigation": "^7.23.1",
     "react-recipes": "^1.4.0",
     "react-test-renderer": "^17.0.2",
+    "reassure": "^0.4.1",
     "semver": "5.x.x",
     "shell-utils": "1.x.x",
     "typescript": "^4.3.3"

src/utils/__tests__/Playground.perf.js

@@ -0,0 +1,22 @@
+import React from 'react';
+import {measurePerformance} from 'reassure';
+import {Calendar, CalendarList} from '../../index';
+
+describe('Playground testing', () => {
+  const TestCase = () => {
+    return <Calendar />;
+  };
+  const TestCaseList = () => {
+    return <CalendarList />;
+  };
+
+  it('calendar', async () => {
+    const measurement = await measurePerformance(<TestCase />);
+    expect(measurement.meanDuration).toBeLessThan(60);
+  });
+
+  it('calendar list', async () => {
+    const measurement = await measurePerformance(<TestCaseList />);
+    expect(measurement.meanDuration).toBeLessThan(100);
+  });
+});