Merge pull request getsentry#627 from chulkilee/log-once

log backtrace at once

Author: nateberkopec

lib/raven/client.rb

@@ -97,8 +97,7 @@ def successful_send
     def failed_send(e, event)
       @state.failure
       if e # exception was raised
-        configuration.logger.error "Unable to record event with remote Sentry server (#{e.class} - #{e.message})"
-        e.backtrace[0..10].each { |line| configuration.logger.error(line) }
+        configuration.logger.error "Unable to record event with remote Sentry server (#{e.class} - #{e.message}):\n#{e.backtrace[0..10].join("\n")}"
       else
         configuration.logger.error "Not sending event due to previous failure(s)."
       end

spec/raven/integration_spec.rb

@@ -48,7 +48,8 @@
       config.logger = logger
     end
 
-    expect(logger).to receive(:error).at_least(10).times
+    # sentry error and original error
+    expect(logger).not_to receive(:error).twice
     Raven.capture_exception(build_exception)
 
     stubs.verify_stubbed_calls