classdef ExamplePlugin < matlab.unittest.plugins.TestRunnerPlugin
    
    properties (SetAccess = private)
        FixtureAssertionFailureData = {};
    end
    
    methods (Access = protected)
        function fixture = createSharedTestFixture(plugin, pluginData)
            % Invoke the super class method
            fixture = createSharedTestFixture@...
                matlab.unittest.plugins.TestRunnerPlugin(plugin, pluginData);
            
            % Get the fixture name
            fixtureName = pluginData.Name;
            
            % Add a listener to fixture assertion failures
            % and capture the qualification failure information
            fixture.addlistener('AssertionFailed', @(~,evd) ...
                plugin.captureFixtureAssertionFailureData(evd, fixtureName))
        end
    end
    
    methods (Access = private)
        function captureFixtureAssertionFailureData(plugin, eventData, fixtureName)
            plugin.FixtureAssertionFailureData{end+1} = struct(...
                'FixtureName', fixtureName, ...
                'ActualValue', eventData.ActualValue, ...
                'Constraint' , eventData.Constraint, ...
                'Stack'      , eventData.Stack);
        end
    end
end