Test generation / automation

[emil14]

When I write Go tests I usually do every time the same "setup" stuff:

• There is some "class" (struct) with public method I want to test
• It does have some interface deps that I mock with gomock and go generate
• Then I setup my test functions (even though it has generated "skeleton")
• I create "init mock" functions that do EXPECT and RETURN
• I setup my callback function that checks whether those functions are initialized or not and calls them
• Also creates gomock ctrl, calls my tested func and assert results

I think that ALL this stuff could (must actually) be automated. The only code that I really need to write as a developer is test cases. By test cases I mean: 1) name of the test case 2) what are inputs 3) mock programming 4) what are outputs. Sometimes there could (probably! I don't really used to do this) some "after" checks like whether some state was changed.

By "mock programming" I mean:

• What deps are called
• What are inputs of those calls
• In what order they called (this is something that gomock ignores by default AFAIK)
• What do they return

Can we make testing AS SIMPLE as possible with MINIMUM EFFORT from developer? Can we make ALL setup stuff pre-generated by default? Or automated somehow at least?