Split assertType into 2 functions based on what data we're using for …

…these assertions

lib/index.js

@@ -1017,7 +1017,7 @@ const createTestFile = async (action, operation) => {
 
 const zapier = require('zapier-platform-core');
 const { getConfig } = require('zapier-graphql');
-const { assertTypes } = require('zapier-graphql/lib/utils');
+const { assertTypesFromSample } = require('zapier-graphql/lib/utils');
 
 const App = require('../../index');
 const appTester = zapier.createAppTester(App);
@@ -1039,7 +1039,7 @@ describe('${definition.name} ${queryOrMutation}', () => {
 
     const sample = App.${inflection.pluralize(action)}.${operation}.operation.sample
     expect(Object.keys(firstResult).length).toEqual(Object.keys(sample).length);
-    assertTypes(sample, firstResult);
+    assertTypesFromSample(sample, firstResult);
   });
 });
 `;

lib/utils/index.js

@@ -21,7 +21,7 @@ const quote = (value) => {
  * @param {Object} sample
  * @param {Object} object
  */
-const assertTypes = (sample, object) => {
+const assertTypesFromSample = (sample, object) => {
   for (const [key, value] of Object.entries(object)) {
     const field = sample[key];
     expect(field).toBeDefined();
@@ -33,7 +33,7 @@ const assertTypes = (sample, object) => {
 
     if (field.children) {
       expect(typeof value).toBe('object');
-      assertTypes(field.children, value);
+      assertTypesFromSample(field.children, value);
       continue;
     }
 
@@ -48,7 +48,41 @@ const assertTypes = (sample, object) => {
 }
 
 
+/**
+ * Asserts that the types of the object match the type defined in the output fields
+ *
+ * @param {Array} fields
+ * @param {Object} object
+ */
+const assertTypesFromOutputFields = (fields, object) => {
+  for (const [key, value] of Object.entries(object)) {
+    const field = fields.find(field => field.key === key)
+    expect(field).toBeDefined();
+
+    // We don't have an easy way to run any assertions against null fields
+    if (value === null) {
+      continue;
+    }
+
+    if (field.children) {
+      expect(typeof value).toBe('object');
+      assertTypesFromOutputFields(field.children, value);
+      continue;
+    }
+
+    if (field.type === 'datetime') {
+      expect(typeof value).toBe('string');
+    } else if (field.type === 'integer') {
+      expect(value % 1 === 0).toBe(true);
+    } else {
+      expect(typeof value).toBe(field.type);
+    }
+  }
+}
+
+
 module.exports = {
   quote,
-  assertTypes,
+  assertTypesFromSample,
+  assertTypesFromOutputFields,
 };