2 files changed, 42 insertions, 6 deletions
diff --git a/spec/rubocop/cop/gitlab/rails_logger_spec.rb b/spec/rubocop/cop/gitlab/rails_logger_spec.rb
new file mode 100644
index 00000000000..f0158ddcc5c
--- /dev/null
+++ b/spec/rubocop/cop/gitlab/rails_logger_spec.rb
@@ -0,0 +1,42 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+require 'rubocop'
+require 'rubocop/rspec/support'
+require_relative '../../../../rubocop/cop/gitlab/rails_logger'
+
+describe RuboCop::Cop::Gitlab::RailsLogger do
+  include CopHelper
+
+  subject(:cop) { described_class.new }
+
+  it 'flags the use of Rails.logger.error with a constant receiver' do
+    inspect_source("Rails.logger.error('some error')")
+
+    expect(cop.offenses.size).to eq(1)
+  end
+
+  it 'flags the use of Rails.logger.info with a constant receiver' do
+    inspect_source("Rails.logger.info('some info')")
+
+    expect(cop.offenses.size).to eq(1)
+  end
+
+  it 'flags the use of Rails.logger.warn with a constant receiver' do
+    inspect_source("Rails.logger.warn('some warning')")
+
+    expect(cop.offenses.size).to eq(1)
+  end
+
+  it 'does not flag the use of Rails.logger with a constant that is not Rails' do
+    inspect_source("AppLogger.error('some error')")
+
+    expect(cop.offenses.size).to eq(0)
+  end
+
+  it 'does not flag the use of logger with a send receiver' do
+    inspect_source("file_logger.info('important info')")
+
+    expect(cop.offenses.size).to eq(0)
+  end
+end
diff --git a/spec/rubocop/cop/gitlab/union_spec.rb b/spec/rubocop/cop/gitlab/union_spec.rb
index 5b06f30b25f..f0544fdb66e 100644
--- a/spec/rubocop/cop/gitlab/union_spec.rb
+++ b/spec/rubocop/cop/gitlab/union_spec.rb
@@ -16,10 +16,4 @@ describe RuboCop::Cop::Gitlab::Union do
     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Use the `FromUnion` concern, instead of using `Gitlab::SQL::Union` directly
     SOURCE
   end
-
-  it 'does not flag the use of Gitlab::SQL::Union in a spec' do
-    allow(cop).to receive(:in_spec?).and_return(true)
-
-    expect_no_offenses('Gitlab::SQL::Union.new([foo])')
-  end
 end