add jest and typescript.ts tests

Author: kandros

package.json

@@ -14,12 +14,28 @@
   },
   "devDependencies": {
     "@types/fs-extra": "^2.0.0",
+    "@types/jest": "^19.2.2",
     "@types/lodash": "^4.14.62",
+    "jest": "^19.0.2",
+    "serverless": "^1.11.0",
+    "ts-jest": "^19.0.10",
     "tslint": "^5.1.0"
   },
   "dependencies": {
     "fs-p": "^2.0.0",
     "lodash": "^4.17.4",
     "typescript": "^2.2.2"
+  },
+  "jest": {
+    "transform": {
+      ".(ts|tsx)": "<rootDir>/node_modules/ts-jest/preprocessor.js"
+    },
+    "testResultsProcessor": "<rootDir>/node_modules/ts-jest/coverageprocessor.js",
+    "testRegex": "(/__tests__/.*|\\.(test|spec))\\.(ts|tsx|js)$",
+    "moduleFileExtensions": [
+      "ts",
+      "tsx",
+      "js"
+    ]
   }
 }

src/types.ts

@@ -17,7 +17,7 @@ export interface ServerlessOptions {
 
 export interface ServerlessFunction {
   handler: string
-  package: ServerlessPackage
+  package?: ServerlessPackage
 }
 
 export interface ServerlessPackage {

tests/typescript.test.ts

@@ -0,0 +1,28 @@
+import {extractFileNames} from '../src/typescript'
+
+const functions = {
+    hello: {
+        handler: 'my-folder/hello.handler',
+    },
+    world: {
+        handler: 'my-folder/my-subfolder/world.handler',
+    },
+    create: {
+        handler: 'create.create',
+    },
+}
+
+describe('extractFileName', () => {
+    it('get function filenames from serverless service', () => {
+        expect(
+            extractFileNames(functions),
+        ).toEqual(
+            [
+                'my-folder/hello.ts',
+                'my-folder/my-subfolder/world.ts',
+                'create.ts',
+            ],
+        )
+    })
+})
+