Subdirectory test case may be incorrect

If I have a global gitignore that ignores node_modules/ and I wanted to include one subdirectory, I could do the following in git:

# Do not ignore node_modules
!node_modules
# Ignore all node_modules suddirectories
node_modules/*
# Do not ignore the chalk directory
!node_modules/chalk

I can check this behavior with:

$ git check-ignore --verbose node_modules/jest/README.md 

.gitignore:4:node_modules/*     node_modules/jest/README.md

$ git check-ignore --verbose node_modules/jest/build/index.js

.gitignore:4:node_modules/*     node_modules/jest/build/index.js


$ git check-ignore --verbose node_modules/chalk/readme.md

<no output, indicating the file is not ignored>

$ git check-ignore --verbose node_modules/chalk/source/index.js

<no output, indicating the file is not ignored>

This assertion seems to be at odds with the above behavior:

codeowners/gitignore-reader/src/test/java/nl/basjes/gitignore/TestGitIgnore.java

Line 322 in 6028b0f

assertNotIgnore(gitIgnore, "/dir1/foo/bar.txt");

I was very much wrong on this libraries behavior vs git check-ignore.

The file should not be ignored (like the test case) but the directory it's in would be ignored, so I need to check both.

Thanks for diving into this.
If you find any problem I'm happy to pick it up and fix it.
If you happen to find a list of test cases (possibly steps in a git tutorial) I'm happy to include those as additional testcases in my library to ensure it behaves the same as git behaves.