From cfd78bdccce80ec4c1a875891604efa45f539e7c Mon Sep 17 00:00:00 2001
From: Thijs Louisse <Thijs.Louisse@ing.com>
Date: Mon, 5 Aug 2019 17:53:43 +0200
Subject: [PATCH] fix(field): added Date support to InteractionStateMixin

---
 packages/field/src/InteractionStateMixin.js               | 2 +-
 packages/field/test-suites/InteractionStateMixin.suite.js | 6 +++++-
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/packages/field/src/InteractionStateMixin.js b/packages/field/src/InteractionStateMixin.js
index 91a2e02a1..9e7deb32d 100644
--- a/packages/field/src/InteractionStateMixin.js
+++ b/packages/field/src/InteractionStateMixin.js
@@ -60,7 +60,7 @@ export const InteractionStateMixin = dedupeMixin(
           value = modelValue.viewValue;
         }
         // Checks for empty platform types: Objects, Arrays, Dates
-        if (typeof value === 'object' && value !== null) {
+        if (typeof value === 'object' && value !== null && !(value instanceof Date)) {
           return !!Object.keys(value).length;
         }
         // eslint-disable-next-line no-mixed-operators
diff --git a/packages/field/test-suites/InteractionStateMixin.suite.js b/packages/field/test-suites/InteractionStateMixin.suite.js
index 8d6cff351..2c7b3b7b4 100644
--- a/packages/field/test-suites/InteractionStateMixin.suite.js
+++ b/packages/field/test-suites/InteractionStateMixin.suite.js
@@ -14,7 +14,7 @@ import { InteractionStateMixin } from '../src/InteractionStateMixin.js';
 export function runInteractionStateMixinSuite(customConfig) {
   const cfg = {
     tagString: null,
-    allowedModelValueTypes: [Array, Object, Number, Boolean, String],
+    allowedModelValueTypes: [Array, Object, Number, Boolean, String, Date],
     suffix: '',
     ...customConfig,
   };
@@ -154,6 +154,10 @@ export function runInteractionStateMixinSuite(customConfig) {
         changeModelValueAndLeave('');
         expect(el.prefilled, 'empty string should not be "prefilled"').to.be.false;
       }
+      if (cfg.allowedModelValueTypes.includes(Date)) {
+        changeModelValueAndLeave(new Date());
+        expect(el.prefilled, 'Dates should be "prefilled"').to.be.true;
+      }
 
       // Not prefilled
       changeModelValueAndLeave(null);