diff --git a/tests/dataset.spec.js b/tests/dataset.spec.js
index f8d09365..8963264f 100644
--- a/tests/dataset.spec.js
+++ b/tests/dataset.spec.js
@@ -38,7 +38,7 @@ describe('HED dataset validation', () => {
       const testDatasets = {
         empty: [],
         singleValidLong: ['Event/Sensory-event'],
-        /*        singleValidShort: ['Sensory-event'],
+        singleValidShort: ['Sensory-event'],
         multipleValidLong: [
           'Event/Sensory-event',
           'Item/Object/Man-made-object/Vehicle/Train',
@@ -46,23 +46,23 @@ describe('HED dataset validation', () => {
         ],
         multipleValidShort: ['Sensory-event', 'Train', 'RGB-red/0.5'],
         multipleValidMixed: ['Event/Sensory-event', 'Train', 'RGB-red/0.5'],
-        multipleInvalid: ['Time-value/0.5 cm', 'InvalidEvent'],*/
+        multipleInvalid: ['Time-value/0.5 cm', 'InvalidEvent'],
       }
       const legalTimeUnits = ['s', 'second', 'day', 'minute', 'hour']
       const expectedIssues = {
         empty: [],
         singleValidLong: [],
-        /*       singleValidShort: [],
-              multipleValidLong: [],
-              multipleValidShort: [],
-              multipleValidMixed: [],
-              multipleInvalid: [
-                generateValidationIssue('unitClassInvalidUnit', {
-                  tag: testDatasets.multipleInvalid[0],
-                  unitClassUnits: legalTimeUnits.sort().join(','),
-                }),
-                generateValidationIssue('invalidTag', { tag: testDatasets.multipleInvalid[1] }),
-              ],*/
+        singleValidShort: [],
+        multipleValidLong: [],
+        multipleValidShort: [],
+        multipleValidMixed: [],
+        multipleInvalid: [
+          generateValidationIssue('unitClassInvalidUnit', {
+            tag: testDatasets.multipleInvalid[0],
+            unitClassUnits: legalTimeUnits.sort().join(','),
+          }),
+          generateValidationIssue('invalidTag', { tag: testDatasets.multipleInvalid[1] }),
+        ],
       }
       return validator(testDatasets, expectedIssues)
     })