diff --git a/types/tests/data_types.ts b/types/tests/data_types.ts
new file mode 100644
index 00000000000..1740d8e6690
--- /dev/null
+++ b/types/tests/data_types.ts
@@ -0,0 +1,20 @@
+import { Chart } from '../index.esm';
+
+const chart = new Chart('chart', {
+  type: 'bar',
+  data: {
+    labels: ['1', '2', '3'],
+    datasets: [{ data: [[1, 2], [1, 2], [1, 2]] }],
+  }
+});
+
+const chart2 = new Chart('chart2', {
+  type: 'bar',
+  data: {
+    datasets: [{
+      data: [{ id: 'Sales', nested: { value: 1500 } }, { id: 'Purchases', nested: { value: 500 } }],
+    }],
+  },
+  options: { parsing: { xAxisKey: 'id', yAxisKey: 'nested.value' },
+  },
+});