test: BufEnter

test/functional/autocmd/bufenter_spec.lua

@@ -0,0 +1,35 @@
+local helpers = require('test.functional.helpers')(after_each)
+
+local clear = helpers.clear
+local command = helpers.command
+local eq = helpers.eq
+local eval = helpers.eval
+local execute = helpers.execute
+local request = helpers.request
+local source = helpers.source
+
+describe('autocmd BufEnter', function()
+  before_each(clear)
+
+  it("triggered by nvim_command('edit <dir>')", function()
+    command("autocmd BufEnter * if isdirectory(expand('<afile>')) | let g:dir_bufenter = 1 | endif")
+    request("nvim_command", "split .")
+    eq(1, eval("exists('g:dir_bufenter')"))  -- Did BufEnter for the directory.
+    eq(2, eval("bufnr('%')"))                -- Switched to the dir buffer.
+  end)
+
+  it('triggered by "try|:split <dir>|endtry" in a function', function()
+    command("autocmd BufEnter * if isdirectory(expand('<afile>')) | let g:dir_bufenter = 1 | endif")
+    source([[
+      function! Test()
+        try
+          exe 'split .'
+        catch
+        endtry
+      endfunction
+    ]])
+    execute("call Test()")
+    eq(1, eval("exists('g:dir_bufenter')"))  -- Did BufEnter for the directory.
+    eq(2, eval("bufnr('%')"))                -- Switched to the dir buffer.
+  end)
+end)