Fixed connectedBrokers check in broker-connector

[daveshanley]

After a long extended period, applications will start failing when performing clean-up after disconnecting from a broker. It's because we're checking for connectedBrokers on a channel that's cleaned up.

This code adds a check for the existence of the channel before trying to modify or read connectedBrokers

Signed-off-by: Dave Shanley [email protected]

[vmwclabot]

@daveshanley, you must sign every commit in this pull request acknowledging our Developer Certificate of Origin before your changes are merged. This can be done by adding Signed-off-by: John Doe <[email protected]> to the last line of each Git commit message. The e-mail address used to sign must match the e-mail address of the Git author. Click here to view the Developer Certificate of Origin agreement.

• Commit 31e5006 must be signed by [email protected]

[codecov-commenter]

Codecov Report

Patch coverage: 33.33% and project coverage change: -0.03 ⚠️

Comparison is base (4725d8b) 93.64% compared to head (f7ed0fe) 93.62%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master      #63      +/-   ##
==========================================
- Coverage   93.64%   93.62%   -0.03%     
==========================================
  Files          62       62              
  Lines        3716     3717       +1     
  Branches      442      443       +1     
==========================================
  Hits         3480     3480              
  Misses        117      117              
- Partials      119      120       +1     

Flag	Coverage Δ
unittests	93.62% <33.33%> (-0.03%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
src/bridge/broker-connector.ts	90.02% <33.33%> (-0.26%)	⬇️

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[vmwclabot]

@daveshanley, you must sign every commit in this pull request acknowledging our Developer Certificate of Origin before your changes are merged. This can be done by adding Signed-off-by: John Doe <[email protected]> to the last line of each Git commit message. The e-mail address used to sign must match the e-mail address of the Git author. Click here to view the Developer Certificate of Origin agreement.

• Commit f7ed0fe must be signed by [email protected]