diff --git a/src/actions/actions.ts b/src/actions/actions.ts
index 7dbdb87ba9..434ee8f9e8 100644
--- a/src/actions/actions.ts
+++ b/src/actions/actions.ts
@@ -36,6 +36,7 @@ export type ProtoDataset = {
     label?: string;
     format?: string;
     color?: RGBColor;
+    type?: string;
   };
   data: {
     fields: {
diff --git a/src/reducers/vis-state-updaters.ts b/src/reducers/vis-state-updaters.ts
index 1894a3f463..76fdfe8483 100644
--- a/src/reducers/vis-state-updaters.ts
+++ b/src/reducers/vis-state-updaters.ts
@@ -104,6 +104,7 @@ import {LoaderObject} from '@loaders.gl/loader-utils';
 import {KeplerTable} from '../utils';
 
 export {KeplerTable};
+
 export type HistogramBin = {
   x0: number | undefined;
   x1: number | undefined;
diff --git a/src/utils/table-utils/kepler-table.ts b/src/utils/table-utils/kepler-table.ts
index 973a20f7e3..4453076ed4 100644
--- a/src/utils/table-utils/kepler-table.ts
+++ b/src/utils/table-utils/kepler-table.ts
@@ -140,7 +140,7 @@ class KeplerTable {
   metadata: object;
 
   constructor({
-    info = {},
+    info,
     data,
     color,
     metadata,
diff --git a/test/helpers/comparison-utils.js b/test/helpers/comparison-utils.js
index 3865c3686f..5d4c98a45d 100644
--- a/test/helpers/comparison-utils.js
+++ b/test/helpers/comparison-utils.js
@@ -20,6 +20,7 @@
 
 import {FILTER_TYPES} from '@kepler.gl/constants';
 import {toArray} from '../../src/utils/utils';
+import {getFieldValueAccessor} from '../../src/utils';
 import KeplerTable from '../../src/utils/table-utils/kepler-table';
 
 export function cmpObjectKeys(t, expectedObj, actualObj, name) {
@@ -355,14 +356,14 @@ export function cmpParsedAppConfigs(t, expectedConfig, actualConfig, {name = ''}
   });
 }
 
-export function cmpFields(t, expected, actual, name) {
+export function cmpFields(t, expected, actual, name, opt = {}) {
   t.equal(expected.length, actual.length, `dataset.${name} should have same number of fields`);
   actual.forEach((actualField, i) => {
-    cmpField(t, expected[i], actualField, `dataset.${name} fields ${actualField.name}`);
+    cmpField(t, expected[i], actualField, `dataset.${name} fields ${actualField.name}`, opt);
   });
 }
 
-export function cmpField(t, expected, actual, name) {
+export function cmpField(t, expected, actual, name, opt = {}) {
   if (expected && actual) {
     cmpObjectKeys(t, expected, actual, name);
 
@@ -387,7 +388,22 @@ export function cmpField(t, expected, actual, name) {
           });
         }
       } else if (k === 'valueAccessor') {
-        t.ok(typeof actual[k] === 'function', `${name}.valueAccessor should be a function`);
+        // compare value accessor
+        if (opt.dataset) {
+          // test valueAccessor with first value
+
+          t.equal(
+            actual.valueAccessor(opt.dataset.dataContainer.rowAsArray(0)),
+            getFieldValueAccessor(
+              expected,
+              expected.fieldIdx
+            )(opt.dataset.dataContainer.rowAsArray(0)),
+            `${name} have correct valueAccessor function`
+          );
+        } else {
+          // assert it is a
+          t.ok(typeof actual[k] === 'function', `${name}.valueAccessor should be a function`);
+        }
       } else {
         t.deepEqual(actual[k], expected[k], `${name}.${k} should be the same`);
       }