Approximately how many tests were there?

The question is too general and lacks context. To answer, it is necessary to know what types of tests are being referred to: unit tests, integration, functional, load testing, etc., as well as the project or system involved.

If it is a typical medium-sized project, the number of tests can range from a few hundred to several thousand. For example, in a large project with good unit test coverage, there could be 1000+ tests.

For a more precise answer, please specify the context: type of tests, project, testing goals.