fix big cars test (#33603)

export and fix platforms

selfdrive/car/tests/big_cars_test.sh

@@ -4,9 +4,9 @@ SCRIPT_DIR=$(dirname "$0")
 BASEDIR=$(realpath "$SCRIPT_DIR/../../../")
 cd $BASEDIR
 
-MAX_EXAMPLES=300
-INTERNAL_SEG_CNT=300
-FILEREADER_CACHE=1
-INTERNAL_SEG_LIST=selfdrive/car/tests/test_models_segs.txt
+export MAX_EXAMPLES=300
+export INTERNAL_SEG_CNT=300
+export FILEREADER_CACHE=1
+export INTERNAL_SEG_LIST=selfdrive/car/tests/test_models_segs.txt
 
 cd selfdrive/car/tests && pytest test_models.py test_car_interfaces.py

selfdrive/car/tests/test_models.py

@@ -57,6 +57,7 @@ def get_test_cases() -> list[tuple[str, CarTestRoute | None]]:
     segment_list = read_segment_list(os.path.join(BASEDIR, INTERNAL_SEG_LIST))
     segment_list = random.sample(segment_list, INTERNAL_SEG_CNT or len(segment_list))
     for platform, segment in segment_list:
+      platform = MIGRATION.get(platform, platform)
       segment_name = SegmentName(segment)
       test_cases.append((platform, CarTestRoute(segment_name.route_name.canonical_name, platform,
                                                 segment=segment_name.segment_num)))