Minor change to a unit test

[skkosuri-amzn]

Issue #, if available:
Minor change to a unit test

Description of changes:
Minor change to a unit test

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[codecov]

Codecov Report

Merging #261 into master will increase coverage by 2.29%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master     #261      +/-   ##
============================================
+ Coverage     77.22%   79.52%   +2.29%     
- Complexity      193      199       +6     
============================================
  Files           138      138              
  Lines          4522     4522              
  Branches        614      614              
============================================
+ Hits           3492     3596     +104     
+ Misses          707      591     -116     
- Partials        323      335      +12     

Impacted Files	Coverage Δ	Complexity Δ
...e/action/node/ScheduledJobsStatsTransportAction.kt	75.00% <0.00%> (ø)	8.00% <0.00%> (ø%)
...h/alerting/model/destination/email/EmailAccount.kt	95.55% <0.00%> (+1.11%)	0.00% <0.00%> (ø%)
...distroforelasticsearch/alerting/util/IndexUtils.kt	73.80% <0.00%> (+2.38%)	0.00% <0.00%> (ø%)
...icsearch/alerting/model/destination/email/Email.kt	81.33% <0.00%> (+4.00%)	0.00% <0.00%> (ø%)
...asticsearch/alerting/core/schedule/JobScheduler.kt	75.71% <0.00%> (+4.28%)	15.00% <0.00%> (ø%)
...ing/destination/client/DestinationEmailClient.java	77.50% <0.00%> (+5.00%)	8.00% <0.00%> (+1.00%)
...rch/alerting/model/destination/email/EmailGroup.kt	88.60% <0.00%> (+5.06%)	0.00% <0.00%> (ø%)
...icsearch/alerting/model/destination/Destination.kt	69.93% <0.00%> (+6.99%)	0.00% <0.00%> (ø%)
...rch/alerting/core/action/node/ScheduledJobStats.kt	66.66% <0.00%> (+11.11%)	4.00% <0.00%> (+1.00%)
...rting/transport/TransportSearchEmailGroupAction.kt	57.14% <0.00%> (+28.57%)	0.00% <0.00%> (ø%)
... and 6 more

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