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-rw-r--r--test/unit/indent_spec.lua30
1 files changed, 30 insertions, 0 deletions
diff --git a/test/unit/indent_spec.lua b/test/unit/indent_spec.lua
index f93f6d7581..7902918c54 100644
--- a/test/unit/indent_spec.lua
+++ b/test/unit/indent_spec.lua
@@ -1,6 +1,8 @@
local helpers = require('test.unit.helpers')(after_each)
local itp = helpers.gen_itp(it)
+local to_cstr = helpers.to_cstr
+local ffi = helpers.ffi
local eq = helpers.eq
local indent = helpers.cimport('./src/nvim/indent.h')
@@ -28,3 +30,31 @@ describe('get_sts_value', function()
eq(tabstop, indent.get_sts_value())
end)
end)
+
+describe('indent_size_ts()', function()
+ itp('works for spaces', function()
+ local line = to_cstr((' '):rep(7) .. 'a ')
+ eq(7, indent.indent_size_ts(line, 100, nil))
+ end)
+
+ itp('works for tabs and spaces', function()
+ local line = to_cstr(' \t \t \t\t a ')
+ eq(19, indent.indent_size_ts(line, 4, nil))
+ end)
+
+ itp('works for tabs and spaces with empty vts', function()
+ local vts = ffi.new('int[1]') -- zero initialized => first element (size) == 0
+ local line = to_cstr(' \t \t \t\t a ')
+ eq(23, indent.indent_size_ts(line, 4, vts))
+ end)
+
+ itp('works for tabs and spaces with vts', function()
+ local vts = ffi.new('int[3]')
+ vts[0] = 2 -- zero indexed
+ vts[1] = 7
+ vts[2] = 2
+
+ local line = to_cstr(' \t \t \t\t a ')
+ eq(18, indent.indent_size_ts(line, 4, vts))
+ end)
+end)