WIP: Refine test cases

.vscode/settings.json

@@ -0,0 +1,3 @@
+{
+    "typescript.tsdk": "node_modules/typescript/lib"
+}

index.d.ts

@@ -1,21 +1,17 @@
 import { Middleware, Action, AnyAction } from "redux";
 
+interface ThunkDispatch<S, E, A extends Action> {
+  <T extends A>(action: T): T;
+  <R>(asyncAction: ThunkAction<R, S, E, A>): R;
+}
 
 export type ThunkAction<R, S, E, A extends Action> = (
   dispatch: ThunkDispatch<S, E, A>,
   getState: () => S,
   extraArgument: E
 ) => R;
 
-interface ThunkDispatch<S, E, A extends Action> {
-  <T extends A>(action: T): T;
-}
-
-interface ThunkDispatch<S, E, A extends Action> {
-  <R>(asyncAction: ThunkAction<R, S, E, A>): R;
-}
-
-type ThunkMiddleware<E, S = {}, A extends Action = AnyAction> = Middleware<ThunkDispatch<S, E, A>, S, ThunkDispatch<S, E, A>>;
+type ThunkMiddleware<E> = Middleware<ThunkDispatch<S, E, A>, S, ThunkDispatch<S, E, A>>;
 
 declare const thunk: ThunkMiddleware<undefined> & {
   withExtraArgument<E>(extraArgument: E): ThunkMiddleware<E>

package.json

@@ -71,8 +71,8 @@
     "mocha": "^2.2.5",
     "redux": "4.0.0-beta.2",
     "rimraf": "^2.5.2",
-    "typescript": "~2.4.0",
-    "typescript-definition-tester": "0.0.5",
+    "typescript": "~2.6.0",
+    "typings-tester": "^0.3.1",
     "webpack": "^1.12.14"
   }
 }

test/index.js

@@ -1,6 +1,6 @@
 import chai from 'chai';
 import thunkMiddleware from '../src/index';
-import * as tt from 'typescript-definition-tester';
+import { check } from 'typings-tester';
 
 
 describe('thunk middleware', () => {
@@ -97,12 +97,8 @@ describe('thunk middleware', () => {
   describe('TypeScript definitions', function test() {
     this.timeout(0);
 
-    it('should compile against index.d.ts', (done) => {
-      tt.compileDirectory(
-        __dirname,
-        fileName => fileName.match(/\.ts$/),
-        () => done()
-      );
+    it('should compile against index.d.ts', () => {
+      check([__dirname + '/typescript.ts'], __dirname + '/tsconfig.json');
     });
   });
 });

test/tsconfig.json

@@ -0,0 +1,8 @@
+{
+  "compilerOptions": {
+    "strict": true
+  },
+  "files": [
+    "./*.ts"
+  ]
+}

test/typescript.ts

@@ -7,7 +7,11 @@ type State = {
 
 type Actions = { type: 'FOO' };
 
-function fakeReducer(state: State, action: Actions): State {
+const initialState: State = {
+  foo: 'foo'
+};
+
+function fakeReducer(state: State = initialState, action: Actions): State {
   return state;
 }