MATLAB xUnit Test Framework: How to Put Multiple Test Cases in One M-file

The Quick Start example showed how you can write a simple M-file to be a single test case. This example shows you how to put multiple test cases in one M-file.

Name your M-file beginning or ending with "test", like "testMyFunc". Start by putting the following two lines at the beginning of the file. It's important that the output variable name on line 1 be testSuite.

  function testSuite = testMyFunc
  testSuite = buildFunctionHandleTestSuite(localfunctions);

Next, add subfunctions to the file. Each subfunction beginning or ending with "test" becomes an individual test case.

The directory example_subfunction_tests contains a test M-file containing subfunction test cases for the fliplr function.

cd example_subfunction_tests

type testFliplr

function testSuite = testFliplr
testSuite = buildFunctionHandleTestSuite(localfunctions);

function testFliplrMatrix
in = magic(3);
assertEqual(fliplr(in), in(:, [3 2 1]));

function testFliplrVector
assertEqual(fliplr([1 4 10]), [10 4 1]);

As usual, run the test cases using runxunit:

runxunit

Test suite: C:\Users\psexton\Documents\GitHub\matlab-xunit-doctest\doc\example_subfunction_tests
20-Feb-2014 19:59:09

Starting test run with 2 test cases.
..
PASSED in 0.013 seconds.

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