fix: Rake tasks specs (#47)

spec/lib/tasks/decidim_app/k8s/dump_db_tasks_spec.rb

@@ -3,13 +3,15 @@
 require "spec_helper"
 
 describe "rake decidim_app:k8s:dump_db", type: :task do
+  before do
+    allow(DecidimApp::K8s::ConfigurationExporter).to receive(:dump_db).and_return(true)
+  end
+
   it "preloads the Rails environment" do
     expect(task.prerequisites).to include "environment"
   end
 
   it "invokes the configuration exporter" do
-    expect(DecidimApp::K8s::ConfigurationExporter).to receive(:dump_db).and_return(true)
-
     task.execute
   end
 end

spec/lib/tasks/decidim_app/k8s/export_configuration_tasks_spec.rb

@@ -5,14 +5,16 @@
 describe "rake decidim_app:k8s:export_configuration", type: :task do
   let(:image) { "dummy-image" }
 
+  before do
+    allow(DecidimApp::K8s::ConfigurationExporter).to receive(:export!).with(image).and_return(true)
+  end
+
   it "preloads the Rails environment" do
     expect(task.prerequisites).to include "environment"
   end
 
   it "invokes the configuration exporter" do
     with_modified_env IMAGE: image do
-      expect(DecidimApp::K8s::ConfigurationExporter).to receive(:export!).with(image).and_return(true)
-
       task.execute
     end
   end

spec/lib/tasks/decidim_app/k8s/external_install_or_reload_task_spec.rb

@@ -11,7 +11,7 @@
 
   it "calls the manager service" do
     with_modified_env path: path.to_s do
-      expect(DecidimApp::K8s::Manager).to receive(:run).with(path.to_s)
+      allow(DecidimApp::K8s::Manager).to receive(:run).with(path.to_s)
 
       task.execute
     end

spec/lib/tasks/decidim_app/k8s/upgrade_task_spec.rb

@@ -8,7 +8,7 @@
   end
 
   it "calls db:migrate" do
-    expect(Rake::Task["db:migrate"]).to receive(:invoke)
+    allow(Rake::Task["db:migrate"]).to receive(:invoke)
 
     task.execute
   end

spec/lib/tasks/scaleway/storage/migrate_from_local_task_spec.rb

@@ -3,13 +3,15 @@
 require "spec_helper"
 
 describe "rake scaleway:storage:migrate_from_local", type: :task do
+  before do
+    allow(ActiveStorage::Migrator).to receive(:migrate!).with(:local, :scaleway).and_return(true)
+  end
+
   it "preloads the Rails environment" do
     expect(task.prerequisites).to include "environment"
   end
 
   it "invokes the migrator" do
-    expect(ActiveStorage::Migrator).to receive(:migrate!).with(:local, :scaleway).and_return(true)
-
     task.execute
   end
 end