jenkins: re-enable test_models (#29394)

* re-enable test_models

* now?

* Remove bad Volt segment

* Update Jenkinsfile

* use first n segments

Jenkinsfile

@@ -158,7 +158,8 @@ pipeline {
             sh "git lfs pull"
             // tests that our build system's dependencies are configured properly, needs a machine with lots of cores
             sh "scons --clean && scons --no-cache --random -j42"
-            //sh "INTERNAL_SEG_LIST=selfdrive/car/tests/test_models_segs.txt FILEREADER_CACHE=1 pytest -n42 --dist=loadscope selfdrive/car/tests/test_models.py"
+            sh "INTERNAL_SEG_CNT=400 INTERNAL_SEG_LIST=selfdrive/car/tests/test_models_segs.txt FILEREADER_CACHE=1 \
+                pytest -n42 --dist=loadscope selfdrive/car/tests/test_models.py"
           }
 
           post {

selfdrive/car/tests/test_models.py

@@ -27,6 +27,7 @@ PandaType = log.PandaState.PandaType
 NUM_JOBS = int(os.environ.get("NUM_JOBS", "1"))
 JOB_ID = int(os.environ.get("JOB_ID", "0"))
 INTERNAL_SEG_LIST = os.environ.get("INTERNAL_SEG_LIST", "")
+INTERNAL_SEG_CNT = int(os.environ.get("INTERNAL_SEG_CNT", "0"))
 
 ignore_addr_checks_valid = [
   GM.BUICK_REGAL,
@@ -48,7 +49,10 @@ def get_test_cases():
 
   else:
     with open(os.path.join(BASEDIR, INTERNAL_SEG_LIST), "r") as f:
-      seg_list = iter(f.read().splitlines())
+      seg_list = f.read().splitlines()
+
+    cnt = INTERNAL_SEG_CNT or len(seg_list)
+    seg_list = iter(seg_list[:cnt])
 
     for platform in seg_list:
       platform = platform[2:]  # get rid of comment

selfdrive/car/tests/test_models_segs.txt

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:636df10e41e8c6668678a3aa7098afad8c160ea7b75c5a0473f6709db1c702dc
-size 39373
+oid sha256:cab947c2a63a4ce7738e5396f2699335e7369cf8b215bf3cb4db072ba8ca6f65
+size 39302