# `$exceptionHandler` (service in module `ngMock` )

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## Description

Mock implementation of `ng.$exceptionHandler` that rethrows or logs errors passed into it. See $exceptionHandlerProvider for configuration information.

      describe('$exceptionHandlerProvider', function() {

        it('should capture log messages and exceptions', function() {

          module(function($exceptionHandlerProvider) {
            $exceptionHandlerProvider.mode('log');
          });

          inject(function($log, $exceptionHandler, $timeout) {
            $timeout(function() { $log.log(1); });
            $timeout(function() { $log.log(2); throw 'banana peel'; });
            $timeout(function() { $log.log(3); });
            expect($exceptionHandler.errors).toEqual([]);
            expect($log.assertEmpty());
            $timeout.flush();
            expect($exceptionHandler.errors).toEqual(['banana peel']);
            expect($log.log.logs).toEqual([[1], [2], [3]]);
          });
        });
      });