Replace custom stubbing with sinon

src/stub.ts

@@ -1,31 +1,17 @@
-import * as _ from 'lodash'
+import * as sinon from 'sinon'
 
 /**
  * mocks an object's property
  */
-export default function<T extends object, K extends keyof T> (object: T, path: K, value: () => T[K]) {
+export default function<T extends object, K extends keyof T> (object: T, path: K, value: any) {
   if (object === undefined || path === undefined) throw new Error('should not be undefined')
+
   return {
-    run(ctx: {stubs: any[]}) {
-      ctx.stubs = ctx.stubs || []
-      const descriptor = Object.getOwnPropertyDescriptor(object, path)
-      if (descriptor && descriptor.get) {
-        ctx.stubs.push(descriptor.get)
-        descriptor.get = value
-        Object.defineProperty(object, path, descriptor)
-      } else {
-        ctx.stubs.push(_.get(object, path))
-        _.set(object, path, value)
-      }
-    }, finally(ctx: {stubs: any[]}) {
-      const stub = ctx.stubs.pop()
-      const descriptor = Object.getOwnPropertyDescriptor(object, path)
-      if (descriptor && descriptor.get) {
-        descriptor.get = stub
-        Object.defineProperty(object, path, descriptor)
-      } else {
-        _.set(object, path, stub)
-      }
+    run(ctx: {sandbox: any}) {
+      const sandbox = ctx.sandbox = ctx.sandbox || sinon.createSandbox()
+      sandbox.stub(object, path).value(value)
+    }, finally(ctx: {sandbox: any}) {
+      ctx.sandbox.restore()
     },
   }
 }

test/stub.test.ts

@@ -38,7 +38,7 @@ describe('stub', () => {
 
   fancy
     .stdout()
-    .stub(mrGetter, 'foo', () => 2)
+    .stub(mrGetter, 'foo', 2)
     .end('resets getter', output => {
       console.log(mrGetter.foo)
       expect(output.stdout).to.equal('2\n')