Use key_type column for cert get/rotate/reissue/display

Added unit tests

lemur/tests/conf.py

@@ -52,7 +52,8 @@ LEMUR_ALLOW_WEEKEND_EXPIRATION = False
 
 # Database
 
-# modify this if you are not using a local database
+# modify this if you are not using a local database. Please do not use any DB used for development or production purpose
+# Please note that Unit Tests drop the whole schema, recreate and again drop everything at the end
 SQLALCHEMY_DATABASE_URI = os.getenv(
     "SQLALCHEMY_DATABASE_URI", "postgresql://lemur:lemur@localhost:5432/lemur"
 )

lemur/tests/test_certificates.py

@@ -155,6 +155,7 @@ def test_get_certificate_primitives(certificate):
     with freeze_time(datetime.date(year=2016, month=10, day=30)):
         primitives = get_certificate_primitives(certificate)
         assert len(primitives) == 26
+        assert (primitives["key_type"] == "RSA2048")
 
 
 def test_certificate_output_schema(session, certificate, issuer_plugin):
@@ -759,6 +760,7 @@ def test_reissue_certificate(
     certificate.authority = crypto_authority
     new_cert = reissue_certificate(certificate)
     assert new_cert
+    assert (new_cert.key_type == "RSA2048")
 
 
 def test_create_csr():