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path: root/test/lua/module/pandoc.lua
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local tasty = require 'tasty'

local test = tasty.test_case
local group = tasty.test_group
local assert = tasty.assert

function os_is_windows ()
  return package.config:sub(1,1) == '\\'
end

return {
  group 'Attr' {
    group 'Constructor' {
      test('returns null-Attr if no arguments are given', function ()
        local attr = pandoc.Attr()
        assert.are_equal(attr.identifier, '')
        assert.are_same(attr.classes, {})
        assert.are_same(attr.attributes, {})
      end),
      test(
        'accepts string-indexed table or list of pairs as attributes',
        function ()
          local attributes_table = {one = '1', two = '2'}
          local attributes_list = pandoc.List:new {{'one', '1'}, {'two', '2'}}
          local attr_from_table = pandoc.Attr('', {}, attributes_table)
          local attr_from_list = pandoc.Attr('', {}, attributes_list:clone())
          assert.are_same(
            pandoc.List:new(attr_from_table.attributes),
            attributes_list
          )
          assert.are_same(
            pandoc.List:new(attr_from_list.attributes),
            attributes_list
          )
        end
      )
    },
    group 'AttributeList' {
      test('allows access via fields', function ()
        local attributes = pandoc.Attr('', {}, {{'a', '1'}, {'b', '2'}}).attributes
        assert.are_equal(attributes.a, '1')
        assert.are_equal(attributes.b, '2')
      end),
      test('allows access to pairs via numerical indexing', function ()
        local attributes = pandoc.Attr('', {}, {{'a', '1'}, {'b', '2'}}).attributes
        assert.are_same(attributes[1], {'a', '1'})
        assert.are_same(attributes[2], {'b', '2'})
      end),
      test('adds entries by field name', function ()
        local attributes = pandoc.Attr('',{}, {{'c', '1'}, {'d', '2'}}).attributes
        attributes.e = '3'
        assert.are_same(
          -- checking the full AttributeList would "duplicate" entries
          setmetatable(attributes, nil),
          {{'c', '1'}, {'d', '2'}, {'e', '3'}}
        )
      end),
      test('deletes entries by field name', function ()
        local attributes = pandoc.Attr('',{}, {a = '1', b = '2'}).attributes
        attributes.a = nil
        assert.is_nil(attributes.a)
        local assoc_list = setmetatable(attributes, nil)
        assert.are_same(assoc_list, {{'b', '2'}})
      end),
      test('gives key-value pairs when iterated-over', function ()
        local attributes = {width = '11', height = '22', name = 'test'}
        local attr = pandoc.Attr('', {}, attributes)
        local count = 0
        for k, v in pairs(attr.attributes) do
          assert.are_equal(attributes[k], v)
          count = count + 1
        end
        assert.are_equal(count, 3)
      end)
    },
  },
  group 'pipe' {
    test('external string processing', function ()
      if os_is_windows() then
        local pipe_result = pandoc.pipe('find', {'hi'}, 'hi')
        assert.are_equal('hi', pipe_result:match '%a+')
      else
        local pipe_result = pandoc.pipe('tr', {'a', 'b'}, 'abc')
        assert.are_equal('bbc', pipe_result:match '%a+')
      end
    end),
    test('failing pipe', function ()
      if os_is_windows() then
        local success, err = pcall(pandoc.pipe, 'find', {'/a'}, 'hi')
        assert.is_falsy(success)
        assert.are_equal('find', err.command)
        assert.is_truthy(err.error_code ~= 0)
      else
        local success, err = pcall(pandoc.pipe, 'false', {}, 'abc')
        assert.is_falsy(success)
        assert.are_equal('false', err.command)
        assert.are_equal(1, err.error_code)
        assert.are_equal('', err.output)
      end
    end)
  },

  group 'read' {
    test('Markdown', function ()
      local valid_markdown = '*Hello*, World!\n'
      local expected = pandoc.Pandoc({
          pandoc.Para {
            pandoc.Emph { pandoc.Str 'Hello' },
            pandoc.Str ',',
            pandoc.Space(),
            pandoc.Str 'World!'
          }
      })
      assert.are_same(expected, pandoc.read(valid_markdown))
    end),
    test('failing read', function ()
      assert.error_matches(
        function () pandoc.read('foo', 'nosuchreader') end,
        'Unknown reader: nosuchreader'
      )
    end)
  },
}