how does MSTest determine the order in which to run test methods?

Question

edit: note, question 288805 is similar, however, I specifically am asking how does MSTest choose the default test order. Please

Answer 1

As for VSTest execution order. Here is how it's organized in your TestProject:

1. Sort cs-files in your project by their CREATION Time ASC
2. Method Position in each file

For example, you have 3 cs files in project.

• UnitTest1.cs - created 01/01/1970 with methods TestMethod05 and TestMethod03
• UnitTest2.cs - created 05/01/1970 with method TestMethod02.
• UnitTest3.cs - created 03/01/1970 with method TestMethod01.

Then order of executing test is this:

    TestProject1.UnitTest1.TestMethod05
    TestProject1.UnitTest1.TestMethod03
    TestProject1.UnitTest3.TestMethod01
    TestProject1.UnitTest2.TestMethod02

You can see the 'default order' using command:

vstest.console.exe TestProject1.dll /ListTests