Fix one missed unit test spec.
Fix one missed unit test spec.

bradberger/angular-material-calendar,BitolaCo/angular-material-calendar,bradberger/angular-material-calendar,BitolaCo/angular-material-calendar,BitolaCo/angular-material-calendar,bradberger/angular-material-calendar,jsmodules/angular-material-calendar,jsmodules/angular-material-calendar,jsmodules/angular-material-calendar