test: add tests for norg treesitter backend

lua/aerial/backends/treesitter/language_kind_map.lua

@@ -68,12 +68,12 @@ return {
     atx_heading = "Interface",
   },
   norg = {
-      heading1 = "Interface",
-      heading2 = "Interface",
-      heading3 = "Interface",
-      heading4 = "Interface",
-      heading5 = "Interface",
-      heading6 = "Interface",
+    heading1 = "Interface",
+    heading2 = "Interface",
+    heading3 = "Interface",
+    heading4 = "Interface",
+    heading5 = "Interface",
+    heading6 = "Interface",
   },
   org = {
     section = "Interface",

tests/init.lua

@@ -8,6 +8,8 @@ vim.bo.swapfile = false
 vim.cmd([[autocmd BufRead,BufNewFile *.jl setfiletype julia]])
 -- Neovim below 0.7 doesn't have org filetype detection
 vim.cmd([[autocmd BufRead,BufNewFile *.org setfiletype org]])
+-- Neovim doesn't have built-in norg filetype detection
+vim.cmd([[autocmd BufRead,BufNewFile *.norg setfiletype norg]])
 
 require("nvim-treesitter.configs").setup({
   ensure_installed = "all",

tests/treesitter/norg_spec.lua

@@ -0,0 +1,40 @@
+local util = require("tests.test_util")
+
+describe("treesitter neorg", function()
+  it("parses all symbols correctly", function()
+    util.test_file_symbols("treesitter", "./tests/treesitter/norg_test.norg", {
+      {
+        kind = "Interface",
+        name = "Top header",
+        level = 0,
+        lnum = 1,
+        col = 0,
+        end_lnum = 3,
+        end_col = 20,
+        children = {
+          {
+            kind = "Interface",
+            name = "Level 2 header",
+            level = 1,
+            lnum = 2,
+            col = 1,
+            end_lnum = 3,
+            end_col = 20,
+            children = {
+              {
+                kind = "Interface",
+                name = "Level 3 header",
+                level = 2,
+                lnum = 3,
+                col = 2,
+                end_lnum = 3,
+                end_col = 20,
+              },
+            }
+          },
+        }
+      },
+    })
+  end)
+end)
+

tests/treesitter/norg_test.norg

@@ -0,0 +1,3 @@
+* Top header
+ ** Level 2 header
+  *** Level 3 header