You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: pspm_get_physlog_test.m
    path of file: ./repos/PsPM/test
    
    the code of the file until where you have to start completion: classdef pspm_get_physlog_test < pspm_get_superclass
  % ● Description
  % unittest class for the pspm_get_physlog function
  % ● Authors
  % (C) 2015 Tobias Moser (University of Zurich)
  properties
    testcases;
    fhandle = @pspm_get_physlog
  end
  methods
    function define_testcases(this)
      % only testcase at the 
    
function invalid_input(this)
      % invalid path
      this.verifyWarning(@() this.fhandle(''), 'ID:invalid_input');
      % not a physlogfile
      fn = 'ImportTestData/nwdq/sc4b26.WDQ';
      this.verifyWarning(@() this.fhandle(fn, {}), 'ID:invalid_input');
      fn = 'ImportTestData/physlog/SCANPHYSLOG20150821194530.log';
      % data channel does not exist
      import{1} = struct('type', 'ecg', 'channel', 8);
      import = this.assign_chantype_number(import);
      this.verifyWarning(@() this.fhandle(fn, import), 'ID:channel_not_contained_in_file');
      % trigger channel does not exist
      import{1} = struct('type', 'marker', 'channel', 11);
      import = this.assign_chantype_number(import);
      this.verifyWarning(@() this.fhandle(fn, import), 'ID:channel_not_contained_in_file');
    end