fix[data builder]: Access doi value directly in literature

Signed-off-by: Lorenzo Vagliano

inspire_schemas/builders/data.py

@@ -301,7 +301,7 @@ def add_literature(self, doi=None, record=None):
         """Add literature.
 
         :param doi: doi of the literature
-        :type doi: dict
+        :type doi: str
 
         :param record: dictionary with ``$ref`` pointing to proper record.
         :type record: dict
@@ -311,6 +311,7 @@ def add_literature(self, doi=None, record=None):
         }
 
         if doi:
-            literature_dict['doi'] = doi
+            doi_dict = {"value": doi}
+            literature_dict['doi'] = doi_dict
 
         self._append_to('literature', literature_dict)

tests/integration/test_builders.py

@@ -485,7 +485,9 @@ def test_data_builder(data_data):
 
     literatures = data_data['literature']
     for literature in literatures:
-        builder.add_literature(literature.get("doi"), literature.get('record'))
+        doi_value = literature.get("doi", {}).get("value")
+        record = literature.get("record")
+        builder.add_literature(doi_value, record)
     assert builder.record['literature'] == literatures
 
     urls = data_data['urls']

tests/unit/test_data_builder.py

@@ -119,10 +119,13 @@ def test_add_literature():
 
     result = builder.record.get("literature")
     expected = [
-        {
-            "doi": doi,
-            "record": record,
-        }
+	    {
+		    "doi": 
+                {
+			        "value":"10.1234/example.doi"
+		        },
+		    "record": record
+	    }
     ]
 
     assert result == expected