Fix handling of inline tables

Author: sdispater

tests/test_toml_document.py

@@ -422,7 +422,6 @@ def test_getting_inline_table_is_still_an_inline_table():
 name = "foo"
 
 [tool.poetry.dependencies]
-[tool.poetry.dev-dependencies]
 """
 
     doc = parse(content)
@@ -434,7 +433,10 @@ def test_getting_inline_table_is_still_an_inline_table():
     dependencies["bar"] = tomlkit.inline_table()
     dependencies["bar"]["version"] = "^3.0"
     dependencies["bar"]["source"] = "remote"
-    # doc["tool"]["poetry"] = poetry_section
+    dev_dependencies = poetry_section["dev-dependencies"]
+    dev_dependencies["baz"] = tomlkit.inline_table()
+    dev_dependencies["baz"]["version"] = "^4.0"
+    dev_dependencies["baz"]["source"] = "other"
 
     assert (
         """\
@@ -444,7 +446,9 @@ def test_getting_inline_table_is_still_an_inline_table():
 [tool.poetry.dependencies]
 foo = {version = "^2.0", source = "local"}
 bar = {version = "^3.0", source = "remote"}
+
 [tool.poetry.dev-dependencies]
+baz = {version = "^4.0", source = "other"}
 """
         == doc.as_string()
     )

tomlkit/api.py

@@ -111,7 +111,7 @@ def table():  # type: () -> Table
 
 
 def inline_table():  # type: () -> InlineTable
-    return InlineTable(Container(), Trivia(trail=""), new=True)
+    return InlineTable(Container(), Trivia(), new=True)
 
 
 def aot():  # type: () -> AoT

tomlkit/items.py

@@ -1000,9 +1000,6 @@ def __setitem__(self, key, value):  # type: (Union[Key, str], Any) -> None
         if key is not None:
             super(Table, self).__setitem__(key, value)
 
-        if self._value.last_item() is value and "\n" not in value.trivia.trail:
-            value.trivia.trail += "\n"
-
         m = re.match("(?s)^[^ ]*([ ]+).*$", self._trivia.indent)
         if not m:
             return