Enable RSpec/NotToNot cop and auto-correct offenses

Also removes the note from the development/testing.md guide

3 files changed, 6 insertions, 6 deletions

diff --git a/spec/lib/gitlab/metrics/instrumentation_spec.rb b/spec/lib/gitlab/metrics/instrumentation_spec.rb
index 7b86450a223..220e86924a2 100644
--- a/spec/lib/gitlab/metrics/instrumentation_spec.rb
+++ b/spec/lib/gitlab/metrics/instrumentation_spec.rb
@@ -67,7 +67,7 @@ describe Gitlab::Metrics::Instrumentation do
         allow(Gitlab::Metrics).to receive(:method_call_threshold).
           and_return(100)
 
-        expect(transaction).to_not receive(:add_metric)
+        expect(transaction).not_to receive(:add_metric)
 
         @dummy.foo
       end
@@ -147,7 +147,7 @@ describe Gitlab::Metrics::Instrumentation do
         allow(Gitlab::Metrics).to receive(:method_call_threshold).
           and_return(100)
 
-        expect(transaction).to_not receive(:add_metric)
+        expect(transaction).not_to receive(:add_metric)
 
         @dummy.new.bar
       end
@@ -220,7 +220,7 @@ describe Gitlab::Metrics::Instrumentation do
 
       described_class.instrument_methods(@dummy)
 
-      expect(@dummy).to_not respond_to(:_original_kittens)
+      expect(@dummy).not_to respond_to(:_original_kittens)
     end
 
     it 'can take a block to determine if a method should be instrumented' do
@@ -228,7 +228,7 @@ describe Gitlab::Metrics::Instrumentation do
         false
       end
 
-      expect(@dummy).to_not respond_to(:_original_foo)
+      expect(@dummy).not_to respond_to(:_original_foo)
     end
   end
 
diff --git a/spec/lib/gitlab/metrics/sampler_spec.rb b/spec/lib/gitlab/metrics/sampler_spec.rb
index 38da77adc9f..59db127674a 100644
--- a/spec/lib/gitlab/metrics/sampler_spec.rb
+++ b/spec/lib/gitlab/metrics/sampler_spec.rb
@@ -130,7 +130,7 @@ describe Gitlab::Metrics::Sampler do
       100.times do
         interval = sampler.sleep_interval
 
-        expect(interval).to_not eq(last)
+        expect(interval).not_to eq(last)
 
         last = interval
       end
diff --git a/spec/lib/gitlab/metrics/subscribers/active_record_spec.rb b/spec/lib/gitlab/metrics/subscribers/active_record_spec.rb
index e3293a01207..49699ffe28f 100644
--- a/spec/lib/gitlab/metrics/subscribers/active_record_spec.rb
+++ b/spec/lib/gitlab/metrics/subscribers/active_record_spec.rb
@@ -13,7 +13,7 @@ describe Gitlab::Metrics::Subscribers::ActiveRecord do
     describe 'without a current transaction' do
       it 'simply returns' do
         expect_any_instance_of(Gitlab::Metrics::Transaction).
-          to_not receive(:increment)
+          not_to receive(:increment)
 
         subscriber.sql(event)
       end