r"signiferumque, duo ea vocibus consetetur scriptorem. Facer \t",
}
+# Regression test for https://github.com/psf/black/issues/3459.
+xxxx(
+ empty_str_as_first_split=''
+ f'xxxxxxx {xxxxxxxxxx} xxx xxxxxxxxxx xxxxx xxx xxx xx '
+ 'xxxxx xxxxxxxxx xxxxxxx, xxx xxxxxxxxxxx xxx xxxxx. '
+ f'xxxxxxxxxxxxx xxxx xx xxxxxxxxxx. xxxxx: {x.xxx}',
+ empty_u_str_as_first_split=u''
+ f'xxxxxxx {xxxxxxxxxx} xxx xxxxxxxxxx xxxxx xxx xxx xx '
+ 'xxxxx xxxxxxxxx xxxxxxx, xxx xxxxxxxxxxx xxx xxxxx. '
+ f'xxxxxxxxxxxxx xxxx xx xxxxxxxxxx. xxxxx: {x.xxx}',
+)
+
+# Regression test for https://github.com/psf/black/issues/3455.
+a_dict = {
+ "/this/is/a/very/very/very/very/very/very/very/very/very/very/long/key/without/spaces":
+ # And there is a comment before the value
+ ("item1", "item2", "item3"),
+}
+
+# Regression test for https://github.com/psf/black/issues/3506.
+s = (
+ "With single quote: ' "
+ f" {my_dict['foo']}"
+ ' With double quote: " '
+ f' {my_dict["bar"]}'
+)
+
+s = f'Lorem Ipsum is simply dummy text of the printing and typesetting industry:\'{my_dict["foo"]}\''
+
# output
r"signiferumque, duo ea vocibus consetetur scriptorem. Facer \t"
),
}
+
+# Regression test for https://github.com/psf/black/issues/3459.
+xxxx(
+ empty_str_as_first_split=(
+ ""
+ f"xxxxxxx {xxxxxxxxxx} xxx xxxxxxxxxx xxxxx xxx xxx xx "
+ "xxxxx xxxxxxxxx xxxxxxx, xxx xxxxxxxxxxx xxx xxxxx. "
+ f"xxxxxxxxxxxxx xxxx xx xxxxxxxxxx. xxxxx: {x.xxx}"
+ ),
+ empty_u_str_as_first_split=(
+ ""
+ f"xxxxxxx {xxxxxxxxxx} xxx xxxxxxxxxx xxxxx xxx xxx xx "
+ "xxxxx xxxxxxxxx xxxxxxx, xxx xxxxxxxxxxx xxx xxxxx. "
+ f"xxxxxxxxxxxxx xxxx xx xxxxxxxxxx. xxxxx: {x.xxx}"
+ ),
+)
+
+# Regression test for https://github.com/psf/black/issues/3455.
+a_dict = {
+ "/this/is/a/very/very/very/very/very/very/very/very/very/very/long/key/without/spaces":
+ # And there is a comment before the value
+ ("item1", "item2", "item3"),
+}
+
+# Regression test for https://github.com/psf/black/issues/3506.
+s = f"With single quote: ' {my_dict['foo']} With double quote: \" {my_dict['bar']}"
+
+s = (
+ "Lorem Ipsum is simply dummy text of the printing and typesetting"
+ f" industry:'{my_dict['foo']}'"
+)