How can I handle errors in Go SQLMock?

What are some common error handling techniques in Go SQLMock?

In Go SQLMock, you can use methods like ExpectQuery and ExpectExec to simulate errors. You can specify an error to return when the query is executed.

Can you show me a code example of handling an error with SQLMock?

Sure! Here's a simple example:

mock.ExpectQuery("SELECT * FROM users").WillReturnError(errors.New("query error"))

This simulates an error when the query is executed.

How do I test if my error handling works correctly?

You can use assertions in your tests to check if the expected error is returned. For example, use assert.Error(t, err) to verify the error.

What if I want to mock a successful query after an error?

You can chain expectations. First, set up the error, then set up the successful query. SQLMock allows you to define multiple expectations.