diff --git a/packages/twenty-front/src/modules/ui/input/components/internal/date/utils/__tests__/getHighlightedDates.test.ts b/packages/twenty-front/src/modules/ui/input/components/internal/date/utils/__tests__/getHighlightedDates.test.ts
new file mode 100644
index 000000000..d47038665
--- /dev/null
+++ b/packages/twenty-front/src/modules/ui/input/components/internal/date/utils/__tests__/getHighlightedDates.test.ts
@@ -0,0 +1,48 @@
+import { getHighlightedDates } from '@/ui/input/components/internal/date/utils/getHighlightedDates';
+
+describe('getHighlightedDates', () => {
+  it('should should return empty if range is undefined', () => {
+    const dateRange = undefined;
+    expect(getHighlightedDates(dateRange)).toEqual([]);
+  });
+
+  it('should should return empty if range is one day', () => {
+    const dateRange = {
+      start: new Date('2024-10-12T00:00:00.000Z'),
+      end: new Date('2024-10-12T00:00:00.000Z'),
+    };
+    expect(getHighlightedDates(dateRange)).toEqual([
+      new Date('2024-10-12T00:00:00.000Z'),
+    ]);
+  });
+
+  it('should should return empty if range is 2 days', () => {
+    const dateRange = {
+      start: new Date('2024-10-12T00:00:00.000Z'),
+      end: new Date('2024-10-13T00:00:00.000Z'),
+    };
+    expect(getHighlightedDates(dateRange)).toEqual([
+      new Date('2024-10-12T00:00:00.000Z'),
+      new Date('2024-10-13T00:00:00.000Z'),
+    ]);
+  });
+
+  it('should should return empty if range is 10 days', () => {
+    const dateRange = {
+      start: new Date('2024-10-12T00:00:00.000Z'),
+      end: new Date('2024-10-21T00:00:00.000Z'),
+    };
+    expect(getHighlightedDates(dateRange)).toEqual([
+      new Date('2024-10-12T00:00:00.000Z'),
+      new Date('2024-10-13T00:00:00.000Z'),
+      new Date('2024-10-14T00:00:00.000Z'),
+      new Date('2024-10-15T00:00:00.000Z'),
+      new Date('2024-10-16T00:00:00.000Z'),
+      new Date('2024-10-17T00:00:00.000Z'),
+      new Date('2024-10-18T00:00:00.000Z'),
+      new Date('2024-10-19T00:00:00.000Z'),
+      new Date('2024-10-20T00:00:00.000Z'),
+      new Date('2024-10-21T00:00:00.000Z'),
+    ]);
+  });
+});