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: test_matching.m
    path of file: ./repos/CBIG/external_packages/matlab/default_packages/matlab_bgl
    
    the code of the file until where you have to start completion: function max_card_match=test_matching(A,m,varargin)
% TEST_MATCHING Tests if a matching is maximum cardinality
%
% max_card_match=test_matching(A,m) returns 1 if m is a maximum cardinality
% matching on A.  

    
function max_card_match=test_matching(A,m,varargin)
% TEST_MATCHING Tests if a matching is maximum cardinality
%
% max_card_match=test_matching(A,m) returns 1 if m is a maximum cardinality
% matching on A.  
%
% This method works on undirected graphs (symmetric matrices) and ignores
% edge weights.  
% The runtime is O(mn*alpha(m,n)).  The alpha function is the inverse
% Ackermann function and is <= 4 for all valid Matlab inputs.
%
% ... = test_matching(A,m,...) takes a set of
% key-value pairs or an options structure.  See set_matlab_bgl_options
% for the standard options. 
%   There are no additional options for this function.
%
% Example:
%   load('graphs/matching_example.mat');
%   [m_not_max,v] = matching(A,struct('augmenting_path','none'));
%   test_matching(A,m_not_max)

%
% David Gleich
% Copyright, Stanford University, 2007
%

%% History
%  2007-07-12: Initial version
%%


[trans check full2sparse] = get_matlab_bgl_options(varargin{:});
if full2sparse && ~issparse(A), A = sparse(A); end