Update logic and tests

Author: datamel

src/components/cylc/cylcObject/Menu.vue

@@ -239,7 +239,7 @@ export default {
       }
     },
     isDisabled (mutation, authorised) {
-      if (((mutation._validStates.indexOf(this.node.node.status)) === -1) || !authorised) {
+      if (((!mutation._validStates.includes(this.node.node.status))) || !authorised) {
         return true
       }
       return false

tests/unit/utils/aotf.spec.js

@@ -63,16 +63,16 @@ describe('aotf (Api On The Fly)', () => {
     it('should add computed fields', () => {
       const input = {
         name: 'fooBar',
-        description: 'Short description.\n\nLong\ndescription.\nValid for: [\'stopped\'] workflows.',
+        description: 'Short description.\n\nLong\ndescription.\nValid for: stopped workflows.',
         args: []
       }
       const output = {
         ...input,
         _title: 'Foo Bar',
         _icon: aotf.mutationIcons[''],
         _shortDescription: 'Short description.',
-        _help: 'Long\ndescription.\nValid for: [\'stopped\'] workflows.',
-        _validStates: "['stopped']"
+        _help: 'Long\ndescription.\nValid for: stopped workflows.',
+        _validStates: 'stopped'
       }
       aotf.processMutations([input], null)
       expect(input).to.deep.equal(output)