diff --git a/spec/models/build_spec.rb b/spec/models/build_spec.rb
index f25b676651e..c07832a4b5f 100644
--- a/spec/models/build_spec.rb
+++ b/spec/models/build_spec.rb
@@ -472,7 +472,7 @@ describe Ci::Build, models: true do
     end
 
     it 'when assigning invalid duration' do
-      expect{ build.artifacts_expire_in = '7 elephants' }.not_to raise_error
+      expect { build.artifacts_expire_in = '7 elephants' }.not_to raise_error
       is_expected.to be_nil
     end
 
diff --git a/spec/requests/ci/api/builds_spec.rb b/spec/requests/ci/api/builds_spec.rb
index 616b41eabe0..7e50bea90d1 100644
--- a/spec/requests/ci/api/builds_spec.rb
+++ b/spec/requests/ci/api/builds_spec.rb
@@ -380,7 +380,7 @@ describe Ci::API::API do
             context 'with an expire_in given' do
               let(:expire_in) { '7 days' }
 
-              it do
+              it 'updates when specified' do
                 build.reload
                 expect(response.status).to eq(201)
                 expect(json_response['artifacts_expire_at']).not_to be_empty
@@ -391,7 +391,7 @@ describe Ci::API::API do
             context 'with no expire_in given' do
               let(:expire_in) { nil }
 
-              it do
+              it 'ignores if not specified' do
                 build.reload
                 expect(response.status).to eq(201)
                 expect(json_response['artifacts_expire_at']).to be_nil
diff --git a/spec/workers/expire_build_artifacts_worker_spec.rb b/spec/workers/expire_build_artifacts_worker_spec.rb
index 501ca630e55..8168ad98062 100644
--- a/spec/workers/expire_build_artifacts_worker_spec.rb
+++ b/spec/workers/expire_build_artifacts_worker_spec.rb
@@ -6,14 +6,14 @@ describe ExpireBuildArtifactsWorker do
   let(:worker) { described_class.new }
 
   describe '#perform' do
+    before { build }
+
+    subject! { worker.perform }
+
     context 'with expired artifacts' do
       let!(:build) { create(:ci_build, :artifacts, artifacts_expire_at: Time.now - 7.days) }
 
-      it do
-        expect_any_instance_of(Ci::Build).to receive(:erase_artifacts!)
-
-        worker.perform
-
+      it 'does expire' do
         expect(build.reload.artifacts_expired?).to be_truthy
       end
     end
@@ -21,22 +21,16 @@ describe ExpireBuildArtifactsWorker do
     context 'with not yet expired artifacts' do
       let!(:build) { create(:ci_build, :artifacts, artifacts_expire_at: Time.now + 7.days) }
 
-      it do
-        expect_any_instance_of(Ci::Build).not_to receive(:erase_artifacts!)
-
-        worker.perform
-
-        expect(build.reload.artifacts_expired?).to be_falsey
+      it 'does not expire' do
+        expect(build.reload.artifacts_expired?).to be_truthy
       end
     end
 
     context 'without expire date' do
       let!(:build) { create(:ci_build, :artifacts) }
 
-      it do
-        expect_any_instance_of(Ci::Build).not_to receive(:erase_artifacts!)
-
-        worker.perform
+      it 'does not expire' do
+        expect(build.reload.artifacts_expired?).to be_falsey
       end
     end