Lua: accept filename-contents pairs as env for `pandoc.read`

Key-value pairs, mapping from filename to contents, can be used to fill
the ersatz file system used in the reader sandbox.

1 files changed, 23 insertions, 0 deletions

diff --git a/pandoc-lua-engine/test/lua/module/pandoc.lua b/pandoc-lua-engine/test/lua/module/pandoc.lua
index b196d143c..18b3c64a9 100644
--- a/pandoc-lua-engine/test/lua/module/pandoc.lua
+++ b/pandoc-lua-engine/test/lua/module/pandoc.lua
@@ -325,6 +325,29 @@ return {
           pandoc.Blocks{pandoc.Para 'included'}
         )
       end),
+      test('sandbox files can be given as key-value pairs', function ()
+        local tex = '\\include{lua/module/include.tex}'
+        local files = {
+          ['lua/module/include.tex'] = 'Hello'
+        }
+        local doc = pandoc.read(tex, 'latex', nil, files)
+        assert.are_equal(
+          doc.blocks,
+          pandoc.Blocks{pandoc.Para 'Hello'}
+        )
+      end),
+      test('kv-pairs override contents read from file system', function ()
+        local tex = '\\include{lua/module/include.tex}'
+        local files = {
+          'lua/module/include.tex',
+          ['lua/module/include.tex'] = 'Hello'
+        }
+        local doc = pandoc.read(tex, 'latex', nil, files)
+        assert.are_equal(
+          doc.blocks,
+          pandoc.Blocks{pandoc.Para 'Hello'}
+        )
+      end),
     },
     group 'extensions' {
       test('string spec', function ()