MATLAB Programming Fundamentals - MathWorks

Analyze Failed Test Results

This example shows how to identify and rerun failed tests.

Create an Incorrect Test Method

Using the SolverTest test case, add a method, testBadRealSolution. This test,

based on testRealSolution, calls the quadraticSolver function with inputs 1,3,2,

but tests the results against an incorrect solution, [2,1].

function testBadRealSolution(testCase)

actSolution = quadraticSolver(1,3,2);

expSolution = [2,1];

testCase.verifyEqual(actSolution,expSolution)

end

Run New Test Suite

Save the updated SolverTest class definition and rerun the tests.

quadTests = matlab.unittest.TestSuite.fromClass(?SolverTest);

result1 = run(quadTests);

Running SolverTest

..

================================================================================

Verification failed in SolverTest/testBadRealSolution.

---------------------

Framework Diagnostic:

---------------------

verifyEqual failed.

--> The values are not equal using "isequaln".

--> Failure table:

Index Actual Expected Error RelativeError

_____ ______ ________ _____ _____________

1 -1 2 -3 -1.5

2 -2 1 -3 -3

Actual Value:

-1 -2

Expected Value:

2 1

Analyze Failed Test Results