diff --git a/test/common/datetime/format_time.ts b/test/common/datetime/format_time.ts
index 0fbaafa871..17b2a932d4 100644
--- a/test/common/datetime/format_time.ts
+++ b/test/common/datetime/format_time.ts
@@ -72,7 +72,7 @@ describe("formatTimeWeekday", () => {
         time_format: TimeFormat.am_pm,
         first_weekday: FirstWeekday.language,
       }),
-      "Wednesday 11:12 PM"
+      "Saturday 11:12 PM"
     );
     assert.strictEqual(
       formatTimeWeekday(dateObj, {
@@ -81,7 +81,7 @@ describe("formatTimeWeekday", () => {
         time_format: TimeFormat.twenty_four,
         first_weekday: FirstWeekday.language,
       }),
-      "Wednesday 23:12"
+      "Saturday 23:12"
     );
   });
 });
diff --git a/test/common/entity/compute_state_display.ts b/test/common/entity/compute_state_display.ts
index 095be174f4..e4c7e0b198 100644
--- a/test/common/entity/compute_state_display.ts
+++ b/test/common/entity/compute_state_display.ts
@@ -108,7 +108,7 @@ describe("computeStateDisplay", () => {
     };
     assert.strictEqual(
       computeStateDisplay(localize, stateObj, localeData),
-      "1,234.5 m"
+      "1,234.5"
     );
   });
 
@@ -173,7 +173,7 @@ describe("computeStateDisplay", () => {
   describe("Localizes input_datetime with full date time", () => {
     const stateObj: any = {
       entity_id: "input_datetime.test",
-      state: "123",
+      state: "2017-11-18 23:12:00",
       attributes: {
         has_date: true,
         has_time: true,
@@ -203,7 +203,7 @@ describe("computeStateDisplay", () => {
   it("Localizes input_datetime with date", () => {
     const stateObj: any = {
       entity_id: "input_datetime.test",
-      state: "123",
+      state: "2017-11-18",
       attributes: {
         has_date: true,
         has_time: false,
@@ -224,7 +224,7 @@ describe("computeStateDisplay", () => {
   describe("Localizes input_datetime with time", () => {
     const stateObj: any = {
       entity_id: "input_datetime.test",
-      state: "123",
+      state: "23:12:00",
       attributes: {
         has_date: false,
         has_time: true,
diff --git a/test/setup.js b/test/setup.js
index bb1f8655a6..4d14a5713c 100644
--- a/test/setup.js
+++ b/test/setup.js
@@ -4,6 +4,9 @@ const path = require("path");
 process.env.TZ = "Etc/UTC";
 process.env.IS_TEST = "true";
 
+global.window = {};
+global.navigator = {};
+
 const MDI_OUTPUT_DIR = path.resolve(__dirname, "../build/mdi");
 
 if (!fs.existsSync(MDI_OUTPUT_DIR)) {