Dumped file content should end with newline

Author: erikw

lib/nestedtext/encode.rb

@@ -9,6 +9,7 @@ module NestedText
   # @param obj [Object] The object to encode to NestedText.
   # @param io [IO] Additionally write the output to this IO object.
   #                The caller is responsible for that the IO is closed after the call to this method.
+  #                The file willl end with a newline.
   # @param indentation [Integer] The indentation of nested levels to use.
   # @param strict [Boolean] If strict mode should be used.
   #
@@ -21,7 +22,7 @@ def self.dump(obj, io: nil, indentation: 4, strict: false)
     dumper = Dumper.new(indentation, strict)
     result = dumper.dump obj
     unless io.nil?
-      io.write(result)
+      io.write(result, "\n")
       io.fsync
     end
     dumper.dump obj

test/fixtures/1.nt

@@ -1,2 +1,2 @@
 one:
-    two: 3
+    two: 3

test/nestedtext/core_ext_test.rb

@@ -36,6 +36,6 @@ def test_to_nt_io_param
     sio = StringIO.new
     dumped = obj.to_nt(io: sio)
     assert_equal exp, dumped
-    assert_equal exp, sio.string
+    assert_equal "#{exp}\n", sio.string
   end
 end

test/nestedtext/encode_test.rb

@@ -727,7 +727,7 @@ def test_io_dump_file
 
     dumped = NestedText.dump_file(obj, @file.path)
     assert_equal exp, dumped
-    assert_equal exp, file_content
+    assert_equal "#{exp}\n", file_content
   end
 
   def test_io_dump_io_param_file
@@ -736,7 +736,7 @@ def test_io_dump_io_param_file
 
     dumped = NestedText.dump(obj, io: @file)
     assert_equal exp, dumped
-    assert_equal exp, file_content
+    assert_equal "#{exp}\n", file_content
   end
 
   def test_io_dump_io_param_stringio
@@ -746,7 +746,7 @@ def test_io_dump_io_param_stringio
     sio = StringIO.new
     dumped = NestedText.dump(obj, io: sio)
     assert_equal exp, dumped
-    assert_equal exp, sio.string
+    assert_equal "#{exp}\n", sio.string
   end
 
   def test_io_dump_invalid_io_array