Is IELTS ok for British couples' immigrant visa English test?

I took the A 1 Listening and Speaking Test in Room B 1505, Building 4, Beijing Inn. The examination process is very formal, including taking photos, listening and speaking. A 1 It is not difficult, which is equivalent to the level of five or six-year-old children in Britain. Spouse visa doesn't require much English, so simple daily communication is enough. There is no A 1 test paper in IELTS. Because the test paper is unified, it starts from the level of B 1 Tests 4 to 4.5 are equivalent to grade B 1. However, IELTS has a large number of questions, which is really not suitable for people with marriage visas. The international students' exam is still possible.