fix busted tests: spec/policy/apicast/apicast_spec.lua

spec/policy/apicast/apicast_spec.lua

@@ -1,6 +1,16 @@
 local _M = require 'apicast.policy.apicast'
 
 describe('APIcast policy', function()
+ local ngx_on_abort_stub
+
+ before_each(function()
+ -- .access calls ngx.on_abort
+ -- busted tests are called in the context of ngx.timer
+ -- and that API ngx.on_abort is disabled in that context.
+ -- this stub is mocking the call
+ -- to prevent the internal error: API disabled in the context of ngx.timer
+ ngx_on_abort_stub = stub(ngx, 'on_abort')
+ end)
 
  it('has a name', function()
  assert.truthy(_M._NAME)