Updated uniform plugin tests to use load_dict

Author: leroyvn

src/spectra/tests/test_uniform.py

@@ -5,23 +5,18 @@
 
 
 def make_spectrum(value=None, lambda_min=None, lambda_max=None):
-    from mitsuba.core.xml import load_string
+    from mitsuba.core.xml import load_dict
+
+    dict_spectrum = {"type": "uniform"}
+
+    if value is not None:
+        dict_spectrum["value"] = value
+    if lambda_min is not None:
+        dict_spectrum["lambda_min"] = lambda_min
+    if lambda_max is not None:
+        dict_spectrum["lambda_max"] = lambda_max
 
-    xml_value = f"""<float name="value" value="{value}"/>""" \
-        if value is not None else ""
-    xml_lambda_min = f"""<float name="lambda_min" value="{lambda_min}"/>""" \
-        if lambda_min is not None else ""
-    xml_lambda_max = f"""<float name="lambda_max" value="{lambda_max}"/>""" \
-        if lambda_max is not None else ""
-
-    xml_spectrum = f"""
-        <spectrum version="2.0.0" type="uniform">
-            {xml_value}
-            {xml_lambda_min}
-            {xml_lambda_max}
-        </spectrum>
-        """
-    return load_string(xml_spectrum)
+    return load_dict(dict_spectrum)
 
 
 def test_construct(variant_scalar_spectral):