Update Jest & Enzyme, Add snapshot tests (#307)

* Add disclaimer modal to footer

* Remove duplicate code & unnecessary styles

* Fix formatting noise

* remove un-used css style

* Fix tslint error & add media query for modals

* Nest Media Query

* Update Jest & Enzyme, Add snapshot tests

* Fix tslint errors in /spec, Update mock localstorage

* Update types in tests, Fix tslint error

* Specify module versions for browser

* Update sendTransaction snapshot

common/libs/contract.ts

@@ -12,10 +12,10 @@ interface ABITypedSlot {
 
 interface ABIMethod {
   name: string;
-  type: 'function';
-  constant: boolean;
+  type: string;
+  constant?: boolean;
   inputs: ABITypedSlot[];
-  outputs: ABITypedSlot[];
+  outputs?: ABITypedSlot[];
   // default - false
   payable?: boolean;
 }

jest_config/__mocks__/fileMock.ts

@@ -0,0 +1 @@
+module.exports = 'test-file-stub';

spec/mocks/localStorage.ts → jest_config/__mocks__/localStorage.ts

@@ -1,4 +1,4 @@
-export default class LocalStorageMock {
+class LocalStorageMock {
   private store: object;
 
   constructor() {
@@ -21,3 +21,7 @@ export default class LocalStorageMock {
     delete this.store[key];
   }
 }
+
+Object.defineProperty(window, 'localStorage', {
+  value: new LocalStorageMock()
+});

jest_config/__mocks__/styleMock.ts

@@ -0,0 +1 @@
+module.exports = {};

jest_config/jest.config.json

@@ -1,17 +1,22 @@
 {
+  "rootDir": "../",
   "transform": {
     "^.+\\.tsx?$": "<rootDir>/node_modules/ts-jest/preprocessor.js"
   },
   "testRegex": "(/__tests__/.*|(\\.|/)(test|spec))\\.(jsx?|tsx?)$",
-  "moduleFileExtensions": [
-    "ts",
-    "tsx",
-    "js",
-    "jsx",
-    "json"
-  ],
+  "moduleDirectories": ["node_modules", "common"],
+  "moduleFileExtensions": ["ts", "tsx", "js", "jsx", "json"],
+  "moduleNameMapper": {
+    "\\.(jpg|jpeg|png|gif|eot|otf|webp|svg|ttf|woff|woff2|mp4|webm|wav|mp3|m4a|aac|oga)$":
+      "<rootDir>/jest_config/__mocks__/fileMock.ts",
+    "\\.(css|scss|less)$": "<rootDir>/jest_config/__mocks__/styleMock.ts"
+  },
   "testPathIgnorePatterns": ["<rootDir>/common/config"],
-  "setupFiles": ["<rootDir>/jest_config/setupJest.js"],
+  "setupFiles": [
+    "<rootDir>/jest_config/setupJest.js",
+    "<rootDir>/jest_config/__mocks__/localStorage.ts"
+  ],
   "automock": false,
-  "moduleDirectories": ["node_modules", "common"]
+  "snapshotSerializers": ["enzyme-to-json/serializer"],
+  "browser": true
 }