[API Change] Extract Lua code into new package pandoc-lua-engine

The flag 'lua53` must now be used with that package if pandoc is to be
compiled against Lua 5.3.

1 files changed, 44 insertions, 0 deletions

diff --git a/pandoc-lua-engine/test/lua/module/pandoc-path.lua b/pandoc-lua-engine/test/lua/module/pandoc-path.lua
new file mode 100644
index 000000000..81c11e7b7
--- /dev/null
+++ b/pandoc-lua-engine/test/lua/module/pandoc-path.lua
@@ -0,0 +1,44 @@
+local tasty = require 'tasty'
+local path = require 'pandoc.path'
+
+local assert = tasty.assert
+local test = tasty.test_case
+local group = tasty.test_group
+
+return {
+  group 'path separator' {
+    test('is string', function ()
+      assert.are_same(type(path.separator), 'string')
+    end),
+    test('is slash or backslash', function ()
+      assert.is_truthy(path.separator:match '^[/\\]$')
+    end),
+  },
+  group 'search path separator' {
+    test('is string', function ()
+      assert.are_same(type(path.search_path_separator), 'string')
+    end),
+    test('is colon or semicolon', function ()
+      assert.is_truthy(path.search_path_separator:match '^[:;]$')
+    end)
+  },
+  group 'module' {
+    test('check function existence', function ()
+      local functions = {
+        'directory',
+        'filename',
+        'is_absolute',
+        'is_relative',
+        'join',
+        'make_relative',
+        'normalize',
+        'split',
+        'split_extension',
+        'split_search_path',
+      }
+      for _, f in ipairs(functions) do
+        assert.are_equal(type(path[f]), 'function')
+      end
+    end)
+  }
+}