Fix test thresholds. Use deterministic rng

Author: amacati

tests/integration/test_symbolic.py

@@ -42,10 +42,11 @@ def test_attitude_symbolic():
 
     u_low = np.array([4 * MIN_THRUST, -np.pi, -np.pi, -np.pi])
     u_high = np.array([4 * MAX_THRUST, np.pi, np.pi, np.pi])
+    rng = np.random.default_rng(seed=42)
 
     # Run simulation
     for _ in range(steps):
-        u_rand = (np.random.rand(4) * (u_high - u_low) + u_low).astype(np.float32)
+        u_rand = (rng.random(4) * (u_high - u_low) + u_low).astype(np.float32)
         # Simulate with symbolic model
         res = sym.fd_func(x0=x_sym, p=u_rand)
         x_sym = res["xf"].full().flatten()
@@ -61,5 +62,5 @@ def test_attitude_symbolic():
 
     # Check if states match throughout simulation
     err_msg = "Symbolic and simulation prediction do not match approximately"
-    assert np.allclose(x_sym_log, x_sim_log, rtol=1e-2, atol=1e-3), err_msg
+    assert np.allclose(x_sym_log, x_sim_log, rtol=1e-2, atol=1e-2), err_msg
     sim.close()