Add off-grid non-Gaussian unit test

Author: tom-andersson

tests/test_model.py

@@ -437,10 +437,41 @@ def test_highlevel_predict_coords_align_with_X_t_offgrid(self):
             df_raw.reset_index()["longitude"],
         )
 
-    def test_highlevel_predict_with_pred_params(self):
+    def test_highlevel_predict_with_pred_params_pandas(self):
         """
         Test that passing ``pred_params`` to ``.predict`` works with
-        a spikes-beta likelihood.
+        a spikes-beta likelihood for prediction to pandas.
+        """
+        tl = TaskLoader(context=self.da, target=self.da)
+        model = ConvNP(
+            self.dp,
+            tl,
+            unet_channels=(5, 5, 5),
+            verbose=False,
+            likelihood="cnp-spikes-beta",
+        )
+        task = tl("2020-01-01", context_sampling=10, target_sampling=10)
+
+        # Off-grid prediction
+        X_t = np.array([[0.0, 0.5, 1.0], [0.0, 0.5, 1.0]])
+
+        # Check that nothing breaks and the correct parameters are returned
+        pred_params = ["mean", "std", "variance", "alpha", "beta"]
+        pred = model.predict(task, X_t=X_t, pred_params=pred_params)
+        for pred_param in pred_params:
+            assert pred_param in pred["var"]
+
+        # Test mixture probs special case
+        pred_params = ["mixture_probs"]
+        pred = model.predict(task, X_t=self.da, pred_params=pred_params)
+        for component in range(model.N_mixture_components):
+            pred_param = f"mixture_probs_{component}"
+            assert pred_param in pred["var"]
+
+    def test_highlevel_predict_with_pred_params_xarray(self):
+        """
+        Test that passing ``pred_params`` to ``.predict`` works with
+        a spikes-beta likelihood for prediction to xarray.
         """
         tl = TaskLoader(context=self.da, target=self.da)
         model = ConvNP(