1 files changed, 49 insertions, 0 deletions
diff --git a/tests/indent/c_spec.lua b/tests/indent/c_spec.lua
new file mode 100644
index 000000000..98311c772
--- /dev/null
+++ b/tests/indent/c_spec.lua
@@ -0,0 +1,49 @@
+local whole_file = require('nvim-treesitter.test_utils').indent_whole_file
+local new_line = require('nvim-treesitter.test_utils').indent_new_line
+local scan_dir = require('plenary.scandir').scan_dir
+
+local opts = {
+  tabstop = 4,
+  shiftwidth = 4,
+  softtabstop = 0,
+  expandtab = true,
+}
+
+describe('indent C:', function()
+  describe('whole file:', function()
+    local files = scan_dir('tests/indent/c');
+    for _, file in ipairs(files) do
+      it(vim.fn.fnamemodify(file, ':t'), function()
+        whole_file(file, opts)
+      end)
+    end
+  end)
+
+  describe('new line:', function()
+    local run = function(file, spec, title)
+      title = title and title or tostring(spec.on_line)
+      it(string.format('%s[%s]', file, title), function()
+        new_line('tests/indent/c/' .. file, spec, opts)
+      end)
+    end
+
+    run('array.c', { on_line = 2, text = '0,', indent = 4 })
+    run('cond.c', { on_line = 3, text = 'x++;', indent = 8 })
+    run('cond.c', { on_line = 8, text = 'x++;', indent = 8 })
+    run('expr.c', { on_line = 10, text = '2 *', indent = 8 })
+    run('func.c', { on_line = 17, text = 'int z,', indent = 4 })
+    run('label.c', { on_line = 3, text = 'normal:', indent = 0 })
+    run('loop.c', { on_line = 3, text = 'x++;', indent = 8 })
+    run('preproc_cond.c', { on_line = 5, text = 'x++;', indent = 4 })
+    run('preproc_func.c', { on_line = 3, text = 'x++; \\', indent = 8 })
+    run('string.c', { on_line = 1, text = 'brave new \\', indent = 0 })
+    run('string.c', { on_line = 4, text = '"brave new "', indent = 4 })
+    run('struct.c', { on_line = 4, text = 'int y;', indent = 8 })
+    run('switch.c', { on_line = 3, text = 'x++;', indent = 12 })
+    run('ternary.c', { on_line = 4, text = ': (x == 0) : 0', indent = 8 })
+    -- the line after inserted one will be left with wrong indent but we only care about the inserted one
+    run('no_braces.c', { on_line = 4, text = 'x++;', indent = 8 })
+    run('no_braces.c', { on_line = 7, text = 'x++;', indent = 8 })
+    run('no_braces.c', { on_line = 10, text = 'x++;', indent = 8 })
+  end)
+end)