Test Execution

Currently, the sequencing of tests is the responsibility of the tests themselves. That is, each test suite executes its own child tests and each test reports its own results.

The absence of a distinct test execution object makes it difficult to support certain features, such as high-level setup and teardown, parallel test execution and cancellation of running tests with restart.

In NUnit 3.0, the objects representing tests will no longer have the responsibility of running any subordinate tests and a separate test runner will sequence through the tests to execute them in the desired order.