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_coeffs2vals.m
    path of file: ./repos/chebfun/tests/chebtech1
    
    the code of the file until where you have to start completion: % Test file for chebtech1/coeffs2vals.m

function pass = test_coeffs2vals(varargin)

% Set a tolerance (pref.chebfuneps doesn't matter)
tol = 100*eps;

%%
% Test that a single coefficient is converted correctly
c = sqrt(2);
v = chebtech1.coeffs2vals(c);
pass(1) = (c == v);

%%
% Simple data (even case)
c = (6:-1:1).';
% Exact values
vTrue = [ -3*sqrt(6)/2-5/sqrt(2)+2*sqrt(3)+7 ; 4 - sqrt(2)/2 ; -3*sqrt(6)/2+5/sqrt(2)-2*sqrt(3)+7 ; 3*sqrt(6)/2-5/sqrt(2)-2*sqrt(3)+7 ; 4 + sqrt(2)/2 ; 3*sqrt(6)/2+5/sqrt(2)+2*sqrt(3)+7];

%%
% Test real branch
v = chebtech1.coeffs2vals(c);
pass(2) = norm(v - vTrue, inf) < tol;
pass(3) = ~any(imag(v));

%%
% Test imaginary branch
v = chebtech1.coeffs2vals(1i*c);
pass(4) = norm(v - 1i*vTrue, inf) < tol;
pass(5) = ~any(real(v));

%%
% Test general branch
v = chebtech1.coeffs2vals((1+1i)*c);
pass(6) = norm(v - (1+1i)*vTrue, inf) < tol;

%%
% Test for array input
v = chebtech1.coeffs2vals([c, -c]);
pass(7) = norm(v(:,1) - vTrue, inf) < tol && ...
          norm(v(:,2) + vTrue, inf) < tol;
      
%%
% Simple data (odd case)
c = (5:-1:1).';
% Exact values
vTrue = [ 11/2+sqrt(5)-2*sqrt((5+sqrt(5))/2)-sqrt((5-sqrt(5))/2) ; 11/2-sqrt(5)-2*sqrt((5-sqrt(5))/2)+sqrt((5+sqrt(5))/2) ; 3 ; 11/2-sqrt(5)+2*sqrt((5-sqrt(5))/2)-sqrt((5+sqrt(5))/2) ; 11/2+sqrt(5)+2*sqrt((5+sqrt(5))/2)+sqrt((5-sqrt(5))/2) ];

%%
% Test real branch
v = chebtech1.coeffs2vals(c);
pass(8) = norm(v - vTrue, inf) < tol;
pass(9) = ~any(imag(v));

%%
% Test imaginary branch
v = chebtech1.coeffs2vals(1i*c);
pass(10) = norm(v - 1i*vTrue, inf) < tol;
pass(11) = ~any(real(v));

%%
% Test general branch
v = chebtech1.coeffs2vals((1+1i)*c);
pass(12) = norm(v - (1+1i)*vTrue, inf) < tol;

%%
% Test for array input
v = chebtech1.coeffs2vals([c, -c]);
pass(13) = norm(v(:,1) - vTrue, inf) < tol && ...
          norm(v(:,2) + vTrue, inf) < tol;
  
    
function pass = test_coeffs2vals(varargin)

% Set a tolerance (pref.chebfuneps doesn't matter)
tol = 100*eps;

%%
% Test that a single coefficient is converted correctly
c = sqrt(2);
v = chebtech1.coeffs2vals(c);
pass(1) = (c == v);

%%
% Simple data (even case)
c = (6:-1:1).';
% Exact values
vTrue = [ -3*sqrt(6)/2-5/sqrt(2)+2*sqrt(3)+7 ; 4 - sqrt(2)/2 ; -3*sqrt(6)/2+5/sqrt(2)-2*sqrt(3)+7 ; 3*sqrt(6)/2-5/sqrt(2)-2*sqrt(3)+7 ; 4 + sqrt(2)/2 ; 3*sqrt(6)/2+5/sqrt(2)+2*sqrt(3)+7];

%%
% Test real branch
v = chebtech1.coeffs2vals(c);
pass(2) = norm(v - vTrue, inf) < tol;
pass(3) = ~any(imag(v));

%%
% Test imaginary branch
v = chebtech1.coeffs2vals(1i*c);
pass(4) = norm(v - 1i*vTrue, inf) < tol;
pass(5) = ~any(real(v));

%%
% Test general branch
v = chebtech1.coeffs2vals((1+1i)*c);
pass(6) = norm(v - (1+1i)*vTrue, inf) < tol;

%%
% Test for array input
v = chebtech1.coeffs2vals([c, -c]);
pass(7) = norm(v(:,1) - vTrue, inf) < tol && ...
          norm(v(:,2) + vTrue, inf) < tol;
      
%%
% Simple data (odd case)
c = (5:-1:1).';
% Exact values
vTrue = [ 11/2+sqrt(5)-2*sqrt((5+sqrt(5))/2)-sqrt((5-sqrt(5))/2) ; 11/2-sqrt(5)-2*sqrt((5-sqrt(5))/2)+sqrt((5+sqrt(5))/2) ; 3 ; 11/2-sqrt(5)+2*sqrt((5-sqrt(5))/2)-sqrt((5+sqrt(5))/2) ; 11/2+sqrt(5)+2*sqrt((5+sqrt(5))/2)+sqrt((5-sqrt(5))/2) ];

%%
% Test real branch
v = chebtech1.coeffs2vals(c);
pass(8) = norm(v - vTrue, inf) < tol;
pass(9) = ~any(imag(v));

%%
% Test imaginary branch
v = chebtech1.coeffs2vals(1i*c);
pass(10) = norm(v - 1i*vTrue, inf) < tol;
pass(11) = ~any(real(v));

%%
% Test general branch
v = chebtech1.coeffs2vals((1+1i)*c);
pass(12) = norm(v - (1+1i)*vTrue, inf) < tol;

%%
% Test for array input
v = chebtech1.coeffs2vals([c, -c]);
pass(13) = norm(v(:,1) - vTrue, inf) < tol && ...
          norm(v(:,2) + vTrue, inf) < tol;
      
%%
% Test for symmetry preservation
c = kron(ones(10,1),eye(2));
v = chebtech1.coeffs2vals(c);
pass(14) = norm(v(:,1) - flipud(v(:,1)), inf) == 0 && ...
          norm(v(:,2) + flipud(v(:,2)), inf) == 0;
      
end