1 files changed, 63 insertions, 0 deletions
diff --git a/test/lsp/test_lsp_root_detection.vader b/test/lsp/test_lsp_root_detection.vader
new file mode 100644
index 00000000..2575a62c
--- /dev/null
+++ b/test/lsp/test_lsp_root_detection.vader
@@ -0,0 +1,63 @@
+Before:
+  call ale#assert#SetUpLinterTest('c', 'clangd')
+
+  function! Hook1(buffer)
+    return 'abc123'
+  endfunction
+
+After:
+  let g:ale_lsp_root = {}
+  unlet! b:ale_lsp_root
+  delfunction Hook1
+
+  call ale#assert#TearDownLinterTest()
+
+Execute(The buffer-specific variable can be a string):
+  let b:ale_lsp_root = '/some/path'
+  call ale#test#SetFilename('other-file.c')
+
+  AssertLSPProjectFull '/some/path'
+
+Execute(The buffer-specific variable can be a dictionary):
+  let b:ale_lsp_root = {'clangd': '/some/path', 'golangserver': '/other/path'}
+  call ale#test#SetFilename('other-file.c')
+
+  AssertLSPProjectFull '/some/path'
+
+Execute(The buffer-specific variable can have funcrefs):
+  let b:ale_lsp_root = {'clangd': function('Hook1'), 'golangserver': '/path'}
+  call ale#test#SetFilename('other-file.c')
+
+  AssertLSPProjectFull 'abc123'
+
+Execute(The global variable can be a dictionary):
+  let g:ale_lsp_root = {'clangd': '/some/path', 'golangserver': '/other/path'}
+  call ale#test#SetFilename('other-file.c')
+
+  AssertLSPProjectFull '/some/path'
+
+Execute(The global variable can have funcrefs):
+  let g:ale_lsp_root = {'clangd': function('Hook1'), 'golangserver': '/path'}
+  call ale#test#SetFilename('other-file.c')
+
+  AssertLSPProjectFull 'abc123'
+
+Execute(The buffer-specific variable overrides the global variable):
+  let b:ale_lsp_root = {'clangd': '/some/path', 'golangserver': '/other/path'}
+  let g:ale_lsp_root = {'clangd': '/not/this/path', 'golangserver': '/elsewhere'}
+  call ale#test#SetFilename('other-file.c')
+
+  AssertLSPProjectFull '/some/path'
+
+Execute(The global variable is queried if the buffer-specific has no value):
+  let b:ale_lsp_root = {'golangserver': '/other/path'}
+  let g:ale_lsp_root = {'clangd': '/some/path', 'golangserver': '/elsewhere'}
+  call ale#test#SetFilename('other-file.c')
+
+  AssertLSPProjectFull '/some/path'
+
+
+Execute(The default hook value is acceptable):
+  call ale#test#SetFilename('other-file.c')
+
+  AssertLSPProjectFull ''