unit testing - Does NUnit create a new instance of the test fixture class for each contained test method nowadays?

Question

As written in a fairly old book XUnit Patterns NUnit 2.0 did not create new test fixtures for each test, and because of that if tests were manipulating some state of fixture it became shared and could cause various bad side effects.

Is this still the same? I tried to find it on official site but failed, and havent used NUnit for a while.

Answer 1

The fixture is created once for all of the tests in that fixture.

For a given fixture class, a FixtureSetup method is run once for all of the tests in a fixture, and a Setup method is run once for each test. So, any state that needs to be reset should be done in a Setup method (or TearDown, which is run at the end of each test.)