Fix tests

docs/changes/44.bugfix.rst

@@ -0,0 +1 @@
+- Fixed random number drawing in tests by changing the location of the seed override

pyvisgen/simulation/data_set.py

@@ -39,10 +39,6 @@
     out_path.mkdir(parents=True, exist_ok=True)
     data = load_bundles(conf["in_path"])
 
-    if conf["seed"] is not None:
-        np.random.seed(conf["seed"])
-        torch.manual_seed(conf["seed"])
-
     if slurm:
         job_id = int(job_id + n * 500)
         out = out_path / Path("vis_" + str(job_id) + ".fits")
@@ -121,6 +117,14 @@
     dict
         contains the observation parameters
     """
+
+    global rng
+
+    if conf["seed"] is not None:
+        rng = np.random.default_rng(conf["seed"])
+    else:
+        rng = np.random.default_rng()
+
     samp_ops = draw_sampling_opts(conf)
     array_layout = layouts.get_array_layout(conf["layout"][0])
     half_telescopes = array_layout.x.shape[0] // 2
@@ -145,27 +149,32 @@
     dict
         contains randomly drawn observation options
     """
+
+    if "rng" not in globals():
+        global rng
+        rng = np.random.default_rng(conf["seed"])
+
     angles_ra = np.arange(
         conf["fov_center_ra"][0][0], conf["fov_center_ra"][0][1], step=0.1
     )
-    fov_center_ra = np.random.choice(angles_ra)
+    fov_center_ra = rng.choice(angles_ra)
 
     angles_dec = np.arange(
         conf["fov_center_dec"][0][0], conf["fov_center_dec"][0][1], step=0.1
     )
-    fov_center_dec = np.random.choice(angles_dec)
+    fov_center_dec = rng.choice(angles_dec)
     start_time_l = datetime.strptime(conf["scan_start"][0], "%d-%m-%Y %H:%M:%S")
     start_time_h = datetime.strptime(conf["scan_start"][1], "%d-%m-%Y %H:%M:%S")
     start_times = pd.date_range(start_time_l, start_time_h, freq="1h").strftime(
         "%d-%m-%Y %H:%M:%S"
     )
-    scan_start = np.random.choice(
+    scan_start = rng.choice(
         [datetime.strptime(time, "%d-%m-%Y %H:%M:%S") for time in start_times]
     )
-    scan_duration = np.random.randint(
-        conf["scan_duration"][0], conf["scan_duration"][1]
+    scan_duration = int(
+        rng.integers(conf["scan_duration"][0], conf["scan_duration"][1])
     )
-    num_scans = np.random.randint(conf["num_scans"][0], conf["num_scans"][1])
+    num_scans = int(rng.integers(conf["num_scans"][0], conf["num_scans"][1]))
     opts = np.array(
         [
             conf["mode"],

tests/test_conf.toml

@@ -1,7 +1,7 @@
 [sampling_options]
 mode = "full"
 device = "cpu"
-seed = 1337
+seed = 42
 layout = "vla"
 img_size = 128
 fov_center_ra = [90, 140]

tests/test_simulation.py

@@ -27,6 +27,18 @@ def test_create_sampling_rc():
     test_opts(samp_ops)
 
 
+def test_create_sampling_rc_no_seed():
+    from pyvisgen.simulation.data_set import create_sampling_rc, test_opts
+
+    mod_conf = conf.copy()
+    mod_conf["seed"] = None
+
+    samp_ops = create_sampling_rc(mod_conf)
+    assert len(samp_ops) == 17
+
+    test_opts(samp_ops)
+
+
 def test_vis_loop():
     import torch
 
@@ -64,3 +76,9 @@ def test_vis_loop():
     out = out_path / Path("vis_0.fits")
     hdu_list = writer.create_hdu_list(vis_data, obs)
     hdu_list.writeto(out, overwrite=True)
+
+
+def test_simulate_data_set_no_slurm():
+    from pyvisgen.simulation.data_set import simulate_data_set
+
+    simulate_data_set(config)