Analyze Test Case Results
This example shows how to analyze the information returned by a test runner created from the SolverTest
test case.
Create Quadratic Solver Function
Create the following function that solves roots of the quadratic equation in a file, quadraticSolver.m
, in your working folder.
type quadraticSolver.m
function r = quadraticSolver(a,b,c) % quadraticSolver returns solutions to the % quadratic equation a*x^2 + b*x + c = 0. if ~isa(a,"numeric") || ~isa(b,"numeric") || ~isa(c,"numeric") error("quadraticSolver:InputMustBeNumeric", ... "Coefficients must be numeric.") end r(1) = (-b + sqrt(b^2 - 4*a*c)) / (2*a); r(2) = (-b - sqrt(b^2 - 4*a*c)) / (2*a); end
Create Test for Quadratic Solver Function
Create the following test class in a file, SolverTest.m
, in your working folder.
type SolverTest.m
classdef SolverTest < matlab.unittest.TestCase methods (Test) function realSolution(testCase) actSolution = quadraticSolver(1,-3,2); expSolution = [2 1]; testCase.verifyEqual(actSolution,expSolution) end function imaginarySolution(testCase) actSolution = quadraticSolver(1,2,10); expSolution = [-1+3i -1-3i]; testCase.verifyEqual(actSolution,expSolution) end function nonnumericInput(testCase) testCase.verifyError(@()quadraticSolver(1,"-3",2), ... "quadraticSolver:InputMustBeNumeric") end end end
Run SolverTest
Test Case
Create a test suite, quadTests
.
quadTests = matlab.unittest.TestSuite.fromClass(?SolverTest); result = run(quadTests);
Running SolverTest ... Done SolverTest __________
All tests passed.
Explore Output Argument, result
The output argument, result
, is a matlab.unittest.TestResult
object. It contains information of the two tests in SolverTest
.
whos result
Name Size Bytes Class Attributes result 1x3 9164 matlab.unittest.TestResult
Display Information for One Test
To see the information for one value, type:
result(1)
ans = TestResult with properties: Name: 'SolverTest/realSolution' Passed: 1 Failed: 0 Incomplete: 0 Duration: 0.0066 Details: [1×1 struct] Totals: 1 Passed, 0 Failed, 0 Incomplete. 0.0066456 seconds testing time.
Create Table of Test Results
To access functionality available to tables, create one from the TestResult
object.
rt = table(result)
rt=3×6 table
Name Passed Failed Incomplete Duration Details
________________________________ ______ ______ __________ _________ ____________
{'SolverTest/realSolution' } true false false 0.0066456 {1×1 struct}
{'SolverTest/imaginarySolution'} true false false 0.0067508 {1×1 struct}
{'SolverTest/nonnumericInput' } true false false 0.011253 {1×1 struct}
Sort the test results by duration.
sortrows(rt,'Duration')
ans=3×6 table
Name Passed Failed Incomplete Duration Details
________________________________ ______ ______ __________ _________ ____________
{'SolverTest/realSolution' } true false false 0.0066456 {1×1 struct}
{'SolverTest/imaginarySolution'} true false false 0.0067508 {1×1 struct}
{'SolverTest/nonnumericInput' } true false false 0.011253 {1×1 struct}
Export test results to a CSV file.
writetable(rt,'myTestResults.csv','QuoteStrings',true)