From 9692e4ebf77c26f4398aecc7e21a921fd8a84e69 Mon Sep 17 00:00:00 2001
From: Ingmar Schoegl <ischoegl@lsu.edu>
Date: Fri, 18 Aug 2023 20:47:18 -0500
Subject: [PATCH] [CI] Ensure 1D lambda is constant

Also, add contributor
---
 AUTHORS                    | 1 +
 test/python/test_onedim.py | 5 +++++
 2 files changed, 6 insertions(+)

diff --git a/AUTHORS b/AUTHORS
index 0b2b9878d1..a5843f3e6f 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -67,5 +67,6 @@ Anthony Walker (@anthony-walker), Oregon State University
 Bryan Weber (@bryanwweber), University of Connecticut
 Armin Wehrfritz (@awehrfritz)
 Richard West (@rwest), Northeastern University
+Shumeng Xie (@yeanment), National University of Singapore
 Chao Xu (@12Chao), Northeastern University
 Thorsten Zirwes (@g3bk47), Karlsruhe Institute of Technology
diff --git a/test/python/test_onedim.py b/test/python/test_onedim.py
index b293deab3b..d92362f568 100644
--- a/test/python/test_onedim.py
+++ b/test/python/test_onedim.py
@@ -1282,6 +1282,7 @@ def run_case(self, phi, T, width, P):
         sim.solve(loglevel=0, auto=True)
         self.assertTrue(all(sim.T >= T - 1e-3))
         self.assertTrue(all(sim.spread_rate >= -1e-9))
+        assert np.allclose(sim.L, sim.L[0])
         return sim
 
     @utilities.slow_test
@@ -1391,6 +1392,7 @@ def run_case(self, phi, T, width, P):
         sim.solve(loglevel=0, auto=True)
         self.assertTrue(all(sim.T >= T - 1e-3))
         self.assertTrue(all(sim.spread_rate >= -1e-9))
+        assert np.allclose(sim.L, sim.L[0])
         return sim
 
     @utilities.slow_test
@@ -1436,6 +1438,7 @@ def solve(self, phi, T, width, P):
         sim.burner.mdot = gas.density * 0.15
         sim.solve(loglevel=0, auto=True)
         self.assertGreater(sim.T[1], T)
+        assert np.allclose(sim.L, 0)
 
     def test_case1(self):
         self.solve(phi=0.5, T=500, width=2.0, P=0.1)
@@ -1530,6 +1533,7 @@ def run_stagnation(self, xh2, mdot, width):
         sim.solve(loglevel=0, auto=True)
 
         assert sim.T.max() > tburner + tsurf
+        assert np.allclose(sim.L, sim.L[0])
         self.sim = sim
 
     def test_stagnation_case1(self):
@@ -1717,6 +1721,7 @@ def solve(self, phi, T, width, P):
         sim.reactants.mdot = gas.density * axial_velocity
         sim.solve(loglevel=0, auto=True)
         self.assertGreater(sim.T[-1], T + 100)
+        assert np.allclose(sim.L, sim.L[0])
         return sim
 
     def test_restart(self):