Interview and test positions often require handwritten code series [1]

It is required to write an algorithm on the spot, reverse a string, and there are 3, 2 and 1 spaces in the string;

Step 1: common algorithms are arranged in reverse order, regardless of spaces. For example, in the following, I am a boy is inverted into boy a am I. in fact, it is very simple to be prepared

Step 2: to increase the difficulty of one throw, you need to consider the number of spaces, such as I ⭕ ️ ⭕ ️ ⭕ ️am ⭕ ️ ⭕ ️a ⭕ Boy, in reverse order ⭕ ️ ⭕ ️ ⭕ ️a ⭕ ️ ⭕ ️am ⭕ ️i

Now most of the tests are automated tests to survive. I went to the Internet to check some API automated test frameworks, all kinds of;

The general requirement for testing is to be familiar with a programming language such as Java / python,

What are the requirements for familiarity? Is it required to be able to write (when you are counselled by development), or can you understand (such as some code review)?

The above uses an R to see more clearly. A version is updated below