Fixed a logic error with removing benchmarks from a test; cleaned up some linter errors

src/models/test.rb

@@ -7,7 +7,7 @@ class Test < Sequel::Model
   many_to_one :hardware
   many_to_many :benchmarks
 
-  def has_benchmark(benchmark_id)
+  def benchmark?(benchmark_id)
     return benchmarks_dataset.where(Sequel[:benchmarks][:id] => benchmark_id).any?
   end