Show test coverage when test(s) fail.

[jpap]

I'm manually porting an existing large/complex codebase to Go and am using failed test cases to work out where there is a mismatch in implementation. In doing so, it helps to look at the code path of a failed test.

As the codebase is large, it helps to use the code coverage feature to limit the manual visual diff when failures occur.

Unfortunately, however, vscode-go does not show code coverage when the test fails, despite Go producing the coverprofile file. A workaround is to force tests to pass by removing test assertions, but this is time-consuming. This took me an hour to work out: I was especially puzzled as to why no code coverage was shown, despite the GOPATH looking OK and the coverprofile file being generated OK.

Can we include failed tests into the code coverage?

[ramya-rao-a]

I dont believe there is any reason why we shouldnt show the coverage if Go generates the coverprofile file.

PRs are most welcome.
Code Pointers:

• Build and Debug extension
• goCover.ts is the file where code coverage is applied when you run the Toggle Test Coverage command
• goTest.ts is the file where code coverage is applied when you run all tests in the package