Fix broken tests

test/presenters/supplementary-billing/create-billing-batch-event.presenter.test.js

@@ -44,8 +44,8 @@ describe('Create Billing Batch Event presenter', () => {
       expect(result.batch.isSummer).to.equal(billingBatch.isSummer)
       expect(result.batch.netTotal).to.equal(billingBatch.netTotal)
 
-      expect(result.batch.dateCreated).to.equal(billingBatch.createdAt)
-      expect(result.batch.dateUpdated).to.equal(billingBatch.updatedAt)
+      expect(result.batch.dateCreated).to.equal(billingBatch.dateCreated)
+      expect(result.batch.dateUpdated).to.equal(billingBatch.dateUpdated)
       expect(result.batch.invoiceCount).to.equal(billingBatch.invoiceCount)
       expect(result.batch.invoiceValue).to.equal(billingBatch.invoiceValue)
       expect(result.batch.creditNoteCount).to.equal(billingBatch.creditNoteCount)

test/support/helpers/water/billing-charge-category.helper.js

@@ -20,7 +20,8 @@ const BillingChargeCategoryModel = require('../../../../app/models/water/billing
  * - `modelTier` - tier 1
  * - `isRestrictedSource` - true
  * - `minVolume` - 0
- * - `maxVolume` - 5000
+ * - `maxVolume` - 5000,
+ * - `dateCreated` - Date.now()
  *
  * @param {Object} [data] Any data you want to use instead of the defaults used here or in the database
  *
@@ -53,7 +54,14 @@ function defaults (data = {}) {
     modelTier: 'tier 1',
     isRestrictedSource: true,
     minVolume: 0,
-    maxVolume: 5000
+    maxVolume: 5000,
+    // INFO: The billing_charge_categories table does not have a default for the date_created column. But it is set as
+    // 'not nullable'! So, we need to ensure we set it when creating a new record, something we'll never actually need
+    // to do because it's a static table. Also, we can't use Date.now() because Javascript returns the time since the
+    // epoch in milliseconds, whereas a PostgreSQL timestamp field can only hold the seconds since the epoch. Pass it
+    // an ISO string though ('2023-01-05T08:37:05.575Z') and PostgreSQL can do the conversion
+    // https://stackoverflow.com/a/61912776/6117745
+    dateCreated: new Date().toISOString()
   }
 
   return {