test: Test KF direct navigation (acts-project#2922)

Since this broke lately without noticing in ACTS but later on in ATHENA we would like to add this to the Python level tests

Examples/Python/tests/root_file_hashes.txt

@@ -85,3 +85,19 @@ test_exatrkx[cpu-torch]__performance_track_finding.root: e0875db5eb3aa6b46ad4baf
 test_exatrkx[gpu-onnx]__performance_track_finding.root: 4845dc9f62e287e20c80d479e246eb69d01b279964cfdff83543bea0ea9afbed
 test_exatrkx[gpu-torch]__performance_track_finding.root: e0875db5eb3aa6b46ad4baf846d39b37b68f1efd3436448cc75919b637f8d8d9
 test_ML_Ambiguity_Solver__performance_ambiML.root: 284ff5c3a08c0b810938e4ac2f8ba8fe2babb17d4c202b624ed69fff731a9006
+test_truth_tracking_kalman[generic-False-0.0]__trackstates_fitter.root: 26640d70f7fab870e59666b0915569a6f8f82af68c63e5505548ffa9d24a3212
+test_truth_tracking_kalman[generic-False-0.0]__tracksummary_fitter.root: 11b2e2a50343c636fa977175a30220805412d3200e164ae4c3f439fe2087fb88
+test_truth_tracking_kalman[generic-False-1000.0]__trackstates_fitter.root: 476e0dca91e5168f0574b86aea797dc22900fd456b3c3fb24d5f571b4be804fc
+test_truth_tracking_kalman[generic-False-1000.0]__tracksummary_fitter.root: fc82abfc4e3016cda806e743a270bf78b6d4cc404cd52145ea1eabed85d32feb
+test_truth_tracking_kalman[generic-True-0.0]__trackstates_fitter.root: 26640d70f7fab870e59666b0915569a6f8f82af68c63e5505548ffa9d24a3212
+test_truth_tracking_kalman[generic-True-0.0]__tracksummary_fitter.root: 11b2e2a50343c636fa977175a30220805412d3200e164ae4c3f439fe2087fb88
+test_truth_tracking_kalman[generic-True-1000.0]__trackstates_fitter.root: 476e0dca91e5168f0574b86aea797dc22900fd456b3c3fb24d5f571b4be804fc
+test_truth_tracking_kalman[generic-True-1000.0]__tracksummary_fitter.root: fc82abfc4e3016cda806e743a270bf78b6d4cc404cd52145ea1eabed85d32feb
+test_truth_tracking_kalman[odd-False-0.0]__trackstates_fitter.root: cad01486e071ffdb614d15934354a1b17f2bfa95dd5d440215f606d8a79afe17
+test_truth_tracking_kalman[odd-False-0.0]__tracksummary_fitter.root: f42d1cd850b78909b07cd6e412ae03c6e1ea8c99a02000892dd957319f0a825c
+test_truth_tracking_kalman[odd-False-1000.0]__trackstates_fitter.root: 72c79be1458c4f9c9a1661778c900f0875d257f2d391c4183a698825448919a1
+test_truth_tracking_kalman[odd-False-1000.0]__tracksummary_fitter.root: 3d424dec9b172f253c8c4ffbda470f678fd1081a3d36dcfea517ab0f94995ae4
+test_truth_tracking_kalman[odd-True-0.0]__trackstates_fitter.root: cad01486e071ffdb614d15934354a1b17f2bfa95dd5d440215f606d8a79afe17
+test_truth_tracking_kalman[odd-True-0.0]__tracksummary_fitter.root: f42d1cd850b78909b07cd6e412ae03c6e1ea8c99a02000892dd957319f0a825c
+test_truth_tracking_kalman[odd-True-1000.0]__trackstates_fitter.root: 72c79be1458c4f9c9a1661778c900f0875d257f2d391c4183a698825448919a1
+test_truth_tracking_kalman[odd-True-1000.0]__tracksummary_fitter.root: 3d424dec9b172f253c8c4ffbda470f678fd1081a3d36dcfea517ab0f94995ae4

Examples/Python/tests/test_examples.py

@@ -537,8 +537,9 @@ def test_event_recording(tmp_path):
 
 
 @pytest.mark.parametrize("revFiltMomThresh", [0 * u.GeV, 1 * u.TeV])
+@pytest.mark.parametrize("directNavigation", [False, True])
 def test_truth_tracking_kalman(
-    tmp_path, assert_root_hash, revFiltMomThresh, detector_config
+    tmp_path, assert_root_hash, revFiltMomThresh, directNavigation, detector_config
 ):
     from truth_tracking_kalman import runTruthTrackingKalman
 
@@ -562,6 +563,7 @@ def test_truth_tracking_kalman(
         digiConfigFile=detector_config.digiConfigFile,
         outputDir=tmp_path,
         reverseFilteringMomThreshold=revFiltMomThresh,
+        directNavigation=directNavigation,
         s=seq,
     )
 
@@ -577,6 +579,16 @@ def test_truth_tracking_kalman(
             assert_has_entries(fp, tn)
             assert_root_hash(fn, fp)
 
+    import ROOT
+
+    ROOT.PyConfig.IgnoreCommandLineOptions = True
+    ROOT.gROOT.SetBatch(True)
+    rf = ROOT.TFile.Open(str(tmp_path / "tracksummary_fitter.root"))
+    keys = [k.GetName() for k in rf.GetListOfKeys()]
+    assert "tracksummary" in keys
+    for entry in rf.Get("tracksummary"):
+        assert entry.hasFittedParams
+
 
 def test_truth_tracking_gsf(tmp_path, assert_root_hash, detector_config):
     from truth_tracking_gsf import runTruthTrackingGsf