referential_spec: Move lock tests to a new file, small improvements

* Move these two tests to a new file to isolate them from the normal
  Referential model tests
* Move the `workbench` to a `let`
* Remove unnecessary schema deletions in transactional synchronous test
* Add comments describing the lock mechanism and how we test it with
  threads & sleeps

1 files changed, 0 insertions, 80 deletions

diff --git a/spec/models/referential_spec.rb b/spec/models/referential_spec.rb
index 022ece7ef..7816e7232 100644
--- a/spec/models/referential_spec.rb
+++ b/spec/models/referential_spec.rb
@@ -1,5 +1,3 @@
-require 'spec_helper'
-
 describe Referential, :type => :model do
   let(:ref) { create :workbench_referential, metadatas: [create(:referential_metadata)] }
 
@@ -127,82 +125,4 @@ describe Referential, :type => :model do
     end
   end
 
-  context "when two identical Referentials are created, only one is saved" do
-    it "works synchronously" do
-      begin
-        workbench = create(:workbench)
-        referential_1 = build(
-          :referential,
-          workbench: workbench,
-          organisation: workbench.organisation
-        )
-        referential_2 = referential_1.dup
-        referential_2.slug = "#{referential_1.slug}_different"
-
-        metadata_1 = build(:referential_metadata)
-        metadata_2 = metadata_1.dup
-
-        referential_1.metadatas << metadata_1
-        referential_2.metadatas << metadata_2
-
-        referential_1.save
-        referential_2.save
-
-        expect(referential_1).to be_persisted
-        expect(referential_2).not_to be_persisted
-      ensure
-        Apartment::Tenant.drop(referential_1.slug) if referential_1.persisted?
-        Apartment::Tenant.drop(referential_2.slug) if referential_2.persisted?
-      end
-    end
-
-    it "works asynchronously", truncation: true do
-      begin
-        workbench = create(:workbench)
-        referential_1 = build(
-          :referential,
-          workbench: workbench,
-          organisation: workbench.organisation
-        )
-        referential_2 = referential_1.dup
-        referential_2.slug = "#{referential_1.slug}_different"
-        referential_3 = nil
-
-        metadata_1 = build(:referential_metadata)
-        metadata_2 = metadata_1.dup
-
-        referential_1.metadatas << metadata_1
-        referential_2.metadatas << metadata_2
-
-        thread_1 = Thread.new do
-          ActiveRecord::Base.transaction do
-            referential_1.save
-            sleep 10
-          end
-        end
-
-        thread_2 = Thread.new do
-          sleep 5
-          ActiveRecord::Base.transaction do
-            referential_2.save
-            referential_3 = create(:referential)
-          end
-        end
-
-        thread_1.join
-        thread_2.join
-
-        expect(referential_1).to be_persisted
-        expect(referential_2).not_to be_persisted
-        expect(referential_3).to be_persisted
-      ensure
-        Apartment::Tenant.drop(referential_1.slug) if referential_1.persisted?
-        Apartment::Tenant.drop(referential_2.slug) if referential_2.persisted?
-
-        if referential_3.try(:persisted?)
-          Apartment::Tenant.drop(referential_3.slug)
-        end
-      end
-    end
-  end
 end