[chore] Add additional test coverage

tests/misc_test.py

@@ -22,3 +22,18 @@ def test_obs_errorbar():
 
 def test_print_config():
     pe.print_config()
+
+
+def test_pseudo_Obs_seed_independence():
+    # pseudo_Obs now uses a module-local np.random.default_rng() generator,
+    # so np.random.seed() no longer controls its output. The per-sample
+    # deltas therefore differ between successive calls even with a re-seed,
+    # though the normalized value / dvalue still match the requested inputs.
+    np.random.seed(0)
+    a = pe.pseudo_Obs(1.0, 0.1, "e")
+    np.random.seed(0)
+    b = pe.pseudo_Obs(1.0, 0.1, "e")
+
+    assert not np.allclose(a.deltas["e"], b.deltas["e"])
+    assert np.isclose(a.value, b.value)
+    assert np.isclose(a.dvalue, b.dvalue)