Replaced hardcoded LF with newline_sequence in indent filter.

src/jinja2/filters.py

@@ -809,8 +809,13 @@ def do_urlize(
     return rv
 
 
+@pass_environment
 def do_indent(
-    s: str, width: t.Union[int, str] = 4, first: bool = False, blank: bool = False
+    environment: "Environment",
+    s: str,
+    width: t.Union[int, str] = 4,
+    first: bool = False,
+    blank: bool = False,
 ) -> str:
     """Return a copy of the string with each line indented by 4 spaces. The
     first line and blank lines are not indented by default.
@@ -832,7 +837,7 @@ def do_indent(
     else:
         indention = " " * width
 
-    newline = "\n"
+    newline = environment.newline_sequence
 
     if isinstance(s, Markup):
         indention = Markup(indention)

tests/test_filters.py

@@ -158,17 +158,18 @@ def test_format(self, env):
 
     @staticmethod
     def _test_indent_multiline_template(env, markup=False):
-        text = "\n".join(["", "foo bar", '"baz"', ""])
+        newline = env.newline_sequence
+        text = newline.join(["", "foo bar", '"baz"', ""])
         if markup:
             text = Markup(text)
         t = env.from_string("{{ foo|indent(2, false, false) }}")
-        assert t.render(foo=text) == '\n  foo bar\n  "baz"\n'
+        assert t.render(foo=text) == f'{newline}  foo bar{newline}  "baz"{newline}'
         t = env.from_string("{{ foo|indent(2, false, true) }}")
-        assert t.render(foo=text) == '\n  foo bar\n  "baz"\n  '
+        assert t.render(foo=text) == f'{newline}  foo bar{newline}  "baz"{newline}  '
         t = env.from_string("{{ foo|indent(2, true, false) }}")
-        assert t.render(foo=text) == '  \n  foo bar\n  "baz"\n'
+        assert t.render(foo=text) == f'  {newline}  foo bar{newline}  "baz"{newline}'
         t = env.from_string("{{ foo|indent(2, true, true) }}")
-        assert t.render(foo=text) == '  \n  foo bar\n  "baz"\n  '
+        assert t.render(foo=text) == f'  {newline}  foo bar{newline}  "baz"{newline}  '
 
     def test_indent(self, env):
         self._test_indent_multiline_template(env)