Fix the input for black's line ranges test file (#9622)

crates/ruff_python_formatter/resources/test/fixtures/black/cases/line_ranges_basic.py

@@ -1,3 +1,4 @@
+# flags: --line-ranges=5-6
 # NOTE: If you need to modify this file, pay special attention to the --line-ranges=
 # flag above as it's formatting specifically these lines.
 def foo1(parameter_1, parameter_2, parameter_3, parameter_4, parameter_5, parameter_6, parameter_7): pass

crates/ruff_python_formatter/resources/test/fixtures/black/cases/line_ranges_diff_edge_case.py

@@ -1,3 +1,4 @@
+# flags: --line-ranges=10-11
 # NOTE: If you need to modify this file, pay special attention to the --line-ranges=
 # flag above as it's formatting specifically these lines.
 

crates/ruff_python_formatter/resources/test/fixtures/black/cases/line_ranges_fmt_off.py

@@ -1,3 +1,4 @@
+# flags: --line-ranges=7-7 --line-ranges=17-23
 # NOTE: If you need to modify this file, pay special attention to the --line-ranges=
 # flag above as it's formatting specifically these lines.
 

crates/ruff_python_formatter/resources/test/fixtures/black/cases/line_ranges_fmt_off_decorator.py

@@ -1,3 +1,4 @@
+# flags: --line-ranges=12-12 --line-ranges=21-21
 # NOTE: If you need to modify this file, pay special attention to the --line-ranges=
 # flag above as it's formatting specifically these lines.
 

crates/ruff_python_formatter/resources/test/fixtures/black/cases/line_ranges_fmt_off_overlap.py

@@ -1,3 +1,4 @@
+# flags: --line-ranges=11-17
 # NOTE: If you need to modify this file, pay special attention to the --line-ranges=
 # flag above as it's formatting specifically these lines.
 

crates/ruff_python_formatter/resources/test/fixtures/black/cases/line_ranges_imports.py

@@ -1,3 +1,4 @@
+# flags: --line-ranges=8-8
 # NOTE: If you need to modify this file, pay special attention to the --line-ranges=
 # flag above as it's formatting specifically these lines.
 

crates/ruff_python_formatter/resources/test/fixtures/black/cases/line_ranges_imports.py.expect

@@ -1,3 +1,4 @@
+# flags: --line-ranges=8-8
 # NOTE: If you need to modify this file, pay special attention to the --line-ranges=
 # flag above as it's formatting specifically these lines.
 

crates/ruff_python_formatter/resources/test/fixtures/black/cases/line_ranges_indentation.py

@@ -1,3 +1,4 @@
+# flags: --line-ranges=5-5
 # NOTE: If you need to modify this file, pay special attention to the --line-ranges=
 # flag above as it's formatting specifically these lines.
 if cond1:

crates/ruff_python_formatter/resources/test/fixtures/black/cases/line_ranges_two_passes.py

@@ -1,3 +1,4 @@
+# flags: --line-ranges=9-11
 # NOTE: If you need to modify this file, pay special attention to the --line-ranges=
 # flag above as it's formatting specifically these lines.
 

crates/ruff_python_formatter/resources/test/fixtures/black/cases/line_ranges_unwrapping.py

@@ -1,3 +1,4 @@
+# flags: --line-ranges=5-5 --line-ranges=9-9 --line-ranges=13-13
 # NOTE: If you need to modify this file, pay special attention to the --line-ranges=
 # flag above as it's formatting specifically these lines.
 alist   =   [

crates/ruff_python_formatter/resources/test/fixtures/import_black_tests.py

@@ -45,6 +45,10 @@ def import_fixture(fixture: Path, fixture_set: str):
             if "--pyi" in flags:
                 extension = "pyi"
 
+            if "--line-ranges=" in flags:
+                # Black preserves the flags for line-ranges tests to not mess up the line numbers
+                input.insert(0, flags)
+
             if "--line-length=" in flags:
                 [_, length_and_rest] = flags.split("--line-length=", 1)
                 length = length_and_rest.split(" ", 1)[0]