Rename Artifact to JobArtifact, split metadata out

Two things at ones, as there was no clean way to seperate the commit and
give me feedback from the tests.

But the model Artifact is now JobArtifact, and the table does not have a
type anymore, but the metadata is now its own model:
Ci::JobArtifactMetadata.

1 files changed, 5 insertions, 3 deletions

diff --git a/spec/models/project_statistics_spec.rb b/spec/models/project_statistics_spec.rb
index 59e20e84c2f..95e8d519bdd 100644
--- a/spec/models/project_statistics_spec.rb
+++ b/spec/models/project_statistics_spec.rb
@@ -133,15 +133,17 @@ describe ProjectStatistics do
 
   describe '#update_build_artifacts_size' do
     let!(:pipeline) { create(:ci_pipeline, project: project) }
-    let!(:build1) { create(:ci_build, pipeline: pipeline, artifacts_size: 45.megabytes) }
-    let!(:build2) { create(:ci_build, pipeline: pipeline, artifacts_size: 56.megabytes) }
+    let!(:ci_build) { create(:ci_build, pipeline: pipeline, artifacts_size: 45.megabytes) }
 
     before do
+      create(:ci_build, pipeline: pipeline, artifacts_size: 56.megabytes)
+      create(:ci_job_artifact, project: pipeline.project, job: ci_build)
+
       statistics.update_build_artifacts_size
     end
 
     it "stores the size of related build artifacts" do
-      expect(statistics.build_artifacts_size).to eq 101.megabytes
+      expect(statistics.build_artifacts_size).to eq(106012541)
     end
   end