113 Improve reporting of test failures for CQL tests

[absurdfarce]

No description provided.

[absurdfarce]

I'm not really sure the explicitly logging we're doing here is necessary now.

Given the following diff (to introduce a CQL mismatch):

diff --git a/python/adelphi/tests/integration/resources/cql-schemas/4.0-rc1.cql b/python/adelphi/tests/integration/resources/cql-schemas/4.0-rc1.cql
index dbe0a97..c875e18 100644
--- a/python/adelphi/tests/integration/resources/cql-schemas/4.0-rc1.cql
+++ b/python/adelphi/tests/integration/resources/cql-schemas/4.0-rc1.cql
@@ -6,7 +6,7 @@ CREATE TYPE IF NOT EXISTS ks_0.udt_0 (
 );
 
 CREATE TYPE IF NOT EXISTS ks_0.udt_1 (
-    fld_2 frozen<udt_2>,
+    fld_22 frozen<udt_2>,
     fld_3 frozen<map<frozen<udt_2>, frozen<udt_2>>>,
     fld_4 frozen<list<frozen<udt_0>>>,
     fld_5 frozen<tuple<frozen<udt_2>, frozen<udt_0>>>

the blocks above print the following in the log (as displayed by tox):

INFO     adelphi:cassandra_util.py:23 Creating schema on Cassandra cluster from file /tmp/tmpoBGk1E/base-schema.cql
INFO     adelphi:test_cql.py:61 Statements in reference file tests/integration/resources/cql-schemas/4.0-rc1.cql but not in compare file /tmp/tmpoBGk1E/4.0-rc1-stdout.out:
INFO     adelphi:test_cql.py:63 CREATE TYPE IF NOT EXISTS ks_0.udt_1 ( fld_22 frozen<udt_2>, fld_3 frozen<map<frozen<udt_2>, frozen<udt_2>>>, fld_4 frozen<list<frozen<udt_0>>>, f
ld_5 frozen<tuple<frozen<udt_2>, frozen<udt_0>>> );                  
INFO     adelphi:test_cql.py:66 Statements in compare file /tmp/tmpoBGk1E/4.0-rc1-stdout.out but not in reference file tests/integration/resources/cql-schemas/4.0-rc1.cql:
INFO     adelphi:test_cql.py:68 CREATE TYPE IF NOT EXISTS ks_0.udt_1 ( fld_2 frozen<udt_2>, fld_3 frozen<map<frozen<udt_2>, frozen<udt_2>>>, fld_4 frozen<list<frozen<udt_0>>>, fl
d_5 frozen<tuple<frozen<udt_2>, frozen<udt_0>>> ); 

Note, however, that we've now switched to using sets of CQL statements for the assertEqual() call below, so the test actually fails with the following message:

ests/integration/test_cql.py:70: in compareToReferenceCql                                                                                                                        
    self.assertEqual(set(referenceDict.values()), set(compareDict.values()))                                                                                                      
E   AssertionError: Items in the first set but not the second:                                                                                                                    
E   'CREATE TYPE IF NOT EXISTS ks_0.udt_1 ( fld_22 frozen<udt_2>, fld_3 frozen<map<frozen<udt_2>, frozen<udt_2>>>, fld_4 frozen<list<frozen<udt_0>>>, fld_5 frozen<tuple<frozen<ud
t_2>, frozen<udt_0>>> );'                                                                                                                                                         
E   Items in the second set but not the first:                                                                                                                                    
E   'CREATE TYPE IF NOT EXISTS ks_0.udt_1 ( fld_2 frozen<udt_2>, fld_3 frozen<map<frozen<udt_2>, frozen<udt_2>>>, fld_4 frozen<list<frozen<udt_0>>>, fld_5 frozen<tuple<frozen<udt
_2>, frozen<udt_0>>> );'  

It's not clear to me that the explicit logging we do here is anything but repetitive.

[absurdfarce]

Closing in favor of https://github.com/datastax/adelphi/pull/159/files