added unit tests

Author: DaniAkash

__mocks__/Dimensions.ts

@@ -0,0 +1,7 @@
+jest.mock("react-native/Libraries/Utilities/Dimensions", () => {
+  const Dimensions = require.requireActual(
+    "react-native/Libraries/Utilities/Dimensions"
+  );
+  Dimensions.get = jest.fn().mockReturnValue({ width: 100, height: 100 });
+  return Dimensions;
+});

__tests__/index.unit.test.ts

@@ -0,0 +1,42 @@
+import {
+  responsiveHeight,
+  responsiveWidth,
+  responsiveFontSize,
+  responsiveScreenHeight,
+  responsiveScreenWidth,
+  responsiveScreenFontSize
+} from "../lib/index";
+
+describe("Testing common utils", () => {
+  it("responsiveHeight", () => {
+    const height = responsiveHeight(20);
+    expect(height).toBe(20);
+  });
+
+  it("responsiveWidth", () => {
+    const width = responsiveWidth(20);
+    expect(width).toBe(20);
+  });
+
+  it("responsiveFontSize", () => {
+    const fontSize = responsiveFontSize(2);
+    expect(fontSize).toBe(4.0794577223746264);
+  });
+
+  it("responsiveScreenHeight", () => {
+    const height = responsiveScreenHeight(20);
+    expect(height).toBe(20);
+  });
+
+  it("responsiveScreenWidth", () => {
+    const width = responsiveScreenWidth(20);
+    expect(width).toBe(20);
+  });
+
+  it("responsiveScreenFontSize", () => {
+    const fontSize = responsiveScreenFontSize(2);
+    expect(fontSize).toBe(4.0794577223746264);
+  });
+});
+
+describe("Testing hooks", () => {});

jest.config.js

@@ -1,5 +1,6 @@
 module.exports = {
   preset: "@testing-library/react-native",
+  setupFilesAfterEnv: ["./__mocks__/Dimensions.ts"],
   verbose: true,
   transformIgnorePatterns: [
     "node_modules/(?!(jest-)?react-native|react-clone-referenced-element|@react-native-community|expo(nent)?|@expo(nent)?/.*|react-navigation|@react-navigation/.*|@unimodules/.*|unimodules|sentry-expo|native-base)"