From ff1e10e58eee329a7f0ae4b978239b04559d388e Mon Sep 17 00:00:00 2001
From: Martin Jesper Low Madsen <martin@martinjlowm.dk>
Date: Mon, 4 May 2020 20:42:47 +0200
Subject: [PATCH 1/2] enhancement(transformer): Mock Date similar to that of
 Set and Map

---
 src/transformer/descriptor/tsLibs/typecriptLibs.ts  |  2 ++
 .../descriptor/tsLibs/typescriptLibsTypes.ts        | 13 +++++++------
 2 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/src/transformer/descriptor/tsLibs/typecriptLibs.ts b/src/transformer/descriptor/tsLibs/typecriptLibs.ts
index 83fa84a72..9c93f0f8e 100644
--- a/src/transformer/descriptor/tsLibs/typecriptLibs.ts
+++ b/src/transformer/descriptor/tsLibs/typecriptLibs.ts
@@ -46,6 +46,8 @@ export function GetTypescriptTypeDescriptor(node: ts.TypeReferenceNode, scope: S
         [],
         [dataResolved],
       );
+    case(TypescriptLibsTypes.Date):
+      return ts.createNew(ts.createIdentifier('Date'), undefined, undefined);
     case(TypescriptLibsTypes.Map):
       return ts.createNew(ts.createIdentifier('Map'), undefined, undefined);
     case(TypescriptLibsTypes.Set):
diff --git a/src/transformer/descriptor/tsLibs/typescriptLibsTypes.ts b/src/transformer/descriptor/tsLibs/typescriptLibsTypes.ts
index 4cedec570..3e7304683 100644
--- a/src/transformer/descriptor/tsLibs/typescriptLibsTypes.ts
+++ b/src/transformer/descriptor/tsLibs/typescriptLibsTypes.ts
@@ -1,14 +1,15 @@
 export enum TypescriptLibsTypes {
   Array = 'Array',
-  ReadonlyArray = 'ReadonlyArray',
-  Number = 'Number',
-  String = 'String',
   Boolean = 'Boolean',
-  Object = 'Object',
+  Date = 'Date',
   Function = 'Function',
-  Promise = 'Promise',
   Map = 'Map',
-  Set = 'Set'
+  Number = 'Number',
+  Object = 'Object',
+  Promise = 'Promise',
+  ReadonlyArray = 'ReadonlyArray',
+  Set = 'Set',
+  String = 'String',
 }
 
 export const TypescriptLibsTypesFolder: string = 'node_modules/typescript/lib';

From d7362ff9085d6b603d65a7c75ce3655f45d65bc4 Mon Sep 17 00:00:00 2001
From: Martin Jesper Low Madsen <martin@martinjlowm.dk>
Date: Fri, 8 May 2020 15:38:59 +0200
Subject: [PATCH 2/2] chore(transformer): Update TypeScript lib type test for
 Date

---
 test/transformer/descriptor/tsLibs/tsLibs.test.ts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/test/transformer/descriptor/tsLibs/tsLibs.test.ts b/test/transformer/descriptor/tsLibs/tsLibs.test.ts
index 5999aba7f..5ba03897f 100644
--- a/test/transformer/descriptor/tsLibs/tsLibs.test.ts
+++ b/test/transformer/descriptor/tsLibs/tsLibs.test.ts
@@ -66,13 +66,13 @@ describe('typescript lib', () => {
     expect(properties.a).toEqual([]);
   });
 
-  it('should set undefined for a Date', () => {
+  it('should create a new Date for a Date', () => {
     interface Interface {
       a: Date;
     }
 
     const properties: Interface = createMock<Interface>();
-    expect(properties.a).toBeUndefined();
+    expect(properties.a).toBeInstanceOf(Date);
   });
 
   it('should set a promise resolved for a promise', async () => {