Merge remote-tracking branch 'upstream/master' into aucmd_textputpost

1 files changed, 34 insertions, 4 deletions

diff --git a/test/unit/indent_spec.lua b/test/unit/indent_spec.lua
index ec86822b55..7902918c54 100644
--- a/test/unit/indent_spec.lua
+++ b/test/unit/indent_spec.lua
@@ -1,10 +1,12 @@
-local helpers = require("test.unit.helpers")(after_each)
+local helpers = require('test.unit.helpers')(after_each)
 local itp = helpers.gen_itp(it)
 
-local eq      = helpers.eq
+local to_cstr = helpers.to_cstr
+local ffi = helpers.ffi
+local eq = helpers.eq
 
-local indent = helpers.cimport("./src/nvim/indent.h")
-local globals = helpers.cimport("./src/nvim/globals.h")
+local indent = helpers.cimport('./src/nvim/indent.h')
+local globals = helpers.cimport('./src/nvim/globals.h')
 
 describe('get_sts_value', function()
   itp([[returns 'softtabstop' when it is non-negative]], function()
@@ -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)