ale/test/test_loclist_binary_search.vader

Before:
  let g:loclist = [
  \ {'lnum': 2, 'col': 10},
  \ {'lnum': 3, 'col': 2},
  \ {'lnum': 3, 'col': 10},
  \ {'lnum': 3, 'col': 12},
  \ {'lnum': 3, 'col': 25},
  \ {'lnum': 5, 'col': 4},
  \ {'lnum': 5, 'col': 5},
  \]

Execute (Exact column matches should be correct):
   AssertEqual 1, ale#util#BinarySearch(g:loclist, 3, 2)

Execute (Off lines, there should be no match):
   AssertEqual -1, ale#util#BinarySearch(g:loclist, 4, 2)

Execute (Near column matches should be taken):
   AssertEqual 2, ale#util#BinarySearch(g:loclist, 3, 11)
   AssertEqual 4, ale#util#BinarySearch(g:loclist, 3, 13)

Execute (Columns before should be taken when the cursor is far ahead):
   AssertEqual 4, ale#util#BinarySearch(g:loclist, 3, 300)

After:
  unlet g:loclist