tests

Add test for duplicated CV terms #524

Job	Run time
Tests (mysql, rails test test/unit)	2m 2s
Tests (mysql, rails test test/unit)	23m 6s
Tests (mysql, rails test test/functional)	30m 23s
Tests (mysql, rails test test/functional)	30m 23s
Tests (mysql, rails test test/integration)	15m 48s
Tests (mysql, rails test test/integration)	15m 48s
Tests (mysql, rspec spec)	1m 57s
Tests (mysql, rspec spec)	2m 52s
Tests (mysql, rake assets:precompile)	3m 22s
Tests (mysql, rake assets:precompile)	3m 22s
Tests (mysql, rake db:setup)	2m 58s
Tests (mysql, rake db:setup)	2m 58s
Tests (mysql, rake db:migrate)	3m 5s
Tests (mysql, rake db:migrate)	3m 5s
Tests (mysql, rake seek:upgrade)	3m 13s
Tests (mysql, rake seek:upgrade)	3m 13s
Tests (postgres, rails test test/unit)	23m 15s
Tests (postgres, rails test test/unit)	23m 15s
Tests (sqlite3, rails test test/unit)	18m 49s
Tests (sqlite3, rails test test/unit)	18m 49s
	3h 51m 43s

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