setup testing

jest.config.js

@@ -0,0 +1,16 @@
+module.exports = {
+  preset: 'ts-jest',
+  globals: {
+    'ts-jest': {
+      diagnostics: {
+        // warnOnly: true,
+      },
+      tsConfig: {
+        types: [
+          "node",
+          "jest",
+        ],
+      },
+    },
+  },
+};

package.json

@@ -12,6 +12,7 @@
   "scripts": {
     "build": "tsc",
     "watch": "tsc -w",
+    "test": "jest --maxWorkers=4",
     "lint": "tslint --project tsconfig.json"
   },
   "husky": {
@@ -44,8 +45,11 @@
   "devDependencies": {
     "@types/debug": "0.0.31",
     "@types/fs-extra": "^5.0.4",
+    "@types/jest": "^23.3.12",
     "@types/sharp": "^0.21.0",
     "husky": "^1.3.1",
+    "jest": "^23.6.0",
+    "ts-jest": "^23.10.5",
     "tslint": "^5.12.1",
     "tslint-ionic-rules": "0.0.21",
     "typescript": "^3.2.2"

src/__tests__/platform.ts

@@ -0,0 +1,25 @@
+import { isSupportedPlatform } from '../platform';
+
+describe('cordova-res', () => {
+
+  describe('platform', () => {
+
+    describe('isSupportedPlatform', () => {
+
+      it('should support android', async () => {
+        expect(isSupportedPlatform('android')).toEqual(true);
+      });
+
+      it('should support ios', async () => {
+        expect(isSupportedPlatform('ios')).toEqual(true);
+      });
+
+      it('should not support garbage', async () => {
+        expect(isSupportedPlatform('garbage')).toEqual(false);
+      });
+
+    });
+
+  });
+
+});

src/index.ts

@@ -1,8 +1,7 @@
-import { ensureDir } from '@ionic/utils-fs';
 import * as Debug from 'debug';
 import * as path from 'path';
-import * as sharp from 'sharp';
 
+import { isSupportedPlatform, runPlatform } from './platform';
 import { Platform, RESOURCES } from './resources';
 
 const debug = Debug('cordova-res');
@@ -37,33 +36,3 @@ export async function run(): Promise<void> {
     process.stdout.write(e.stack ? e.stack : e.toString());
   }
 }
-
-export function isSupportedPlatform(platform?: string): platform is Platform {
-  return platform === 'ios' || platform === 'android';
-}
-
-export async function runPlatform(platform: Platform): Promise<void> {
-  const plt = RESOURCES[platform];
-
-  let images = 0;
-
-  await Promise.all(Object.entries(plt).map(async ([ type, config]) => {
-    debug('Building %s resources for %s platform', type, platform);
-
-    const dir = path.join('resources', platform, type);
-    await ensureDir(dir);
-
-    await Promise.all(config.images.map(async image => {
-      const p = path.join(dir, image.name);
-      debug('Generating %o (%ox%o)', p, image.width, image.height);
-
-      await sharp(`./resources/${type}.png`)
-        .resize(image.width, image.height)
-        .toFile(p);
-
-      images++;
-    }));
-  }));
-
-  process.stdout.write(`Generated ${images} images for ${platform}\n`);
-}

src/platform.ts

@@ -0,0 +1,38 @@
+import { ensureDir } from '@ionic/utils-fs';
+import * as Debug from 'debug';
+import * as path from 'path';
+import * as sharp from 'sharp';
+
+import { Platform, RESOURCES } from './resources';
+
+const debug = Debug('cordova-res:platform');
+
+export async function runPlatform(platform: Platform): Promise<void> {
+  const plt = RESOURCES[platform];
+
+  let images = 0;
+
+  await Promise.all(Object.entries(plt).map(async ([ type, config]) => {
+    debug('Building %s resources for %s platform', type, platform);
+
+    const dir = path.join('resources', platform, type);
+    await ensureDir(dir);
+
+    await Promise.all(config.images.map(async image => {
+      const p = path.join(dir, image.name);
+      debug('Generating %o (%ox%o)', p, image.width, image.height);
+
+      await sharp(`./resources/${type}.png`)
+        .resize(image.width, image.height)
+        .toFile(p);
+
+      images++;
+    }));
+  }));
+
+  process.stdout.write(`Generated ${images} images for ${platform}\n`);
+}
+
+export function isSupportedPlatform(platform?: string): platform is Platform {
+  return platform === 'ios' || platform === 'android';
+}