diff --git a/spec/controllers/concerns/searchable_spec.rb b/spec/controllers/concerns/searchable_spec.rb
new file mode 100644
index 000000000..ce6413a08
--- /dev/null
+++ b/spec/controllers/concerns/searchable_spec.rb
@@ -0,0 +1,165 @@
+require 'rails_helper'
+
+RSpec.describe Searchable do
+  let(:controller) { FakesController.new }
+  let(:params) { {} }
+
+  before do
+    class FakesController < ApplicationController
+      include Searchable
+    end
+
+    allow(controller).to receive(:params).and_return(
+      ActionController::Parameters.new(params)
+    )
+  end
+
+  after do
+    Object.send :remove_const, :FakesController
+  end
+
+  describe '#sort_params' do
+    subject(:sort_params) { controller.send(:sort_params) }
+
+    context 'turn collection id as array' do
+      let(:params) do
+        {
+          data: {
+            collection_id: '1'
+          }
+        }
+      end
+
+      it 'collection id as array' do
+        expect(sort_params.dig('collection_id')).to eq (['1'])
+      end
+    end
+
+    context 'require params' do
+      let(:params) do
+        {
+          data: {
+            sort_id: 'asc',
+            text: 'any-text',
+            q: 'any-query',
+            institution_id: 'any institution id',
+            theme: ['theme_1'],
+            collection_id: ['1'],
+            unrequired_params: 1
+          }
+        }
+      end
+
+      it 'returns required params' do
+        expect(sort_params.keys).to contain_exactly(
+          "sort_id", "text", "q", "institution_id", "theme", "collection_id"
+        )
+      end
+    end
+  end
+
+  describe '#build_params' do
+    subject(:build_params) { controller.send(:build_params) }
+
+    let(:params) do
+      {
+        data: {
+          sort_id: 'asc',
+          text: 'any-text',
+          q: 'any-query',
+          institution_id: 'any institution id',
+          theme: ['theme_1'],
+          collection_id: ['1'],
+          unrequired_params: 1
+        }
+      }
+    end
+
+    context 'when all params is present' do
+      it 'returns all params' do
+        expect(build_params.keys).to contain_exactly(
+          "sort_id", "text", "q", "institution_id", "theme", "collection_id"
+        )
+      end
+    end
+
+    context 'when collection_id value is 0' do
+      let(:params) do
+        {
+          data: {
+            sort_id: 'asc',
+            text: 'any-text',
+            q: 'any-query',
+            institution_id: 'any institution id',
+            theme: ['theme_1'],
+            collection_id: ['0'],
+            unrequired_params: 1
+          }
+        }
+      end
+
+      it 'returns all params except collection id' do
+        expect(build_params.keys).to contain_exactly(
+          "sort_id", "text", "q", "institution_id", "theme"
+        )
+      end
+    end
+  end
+
+  describe '#load_institutions' do
+    subject(:load_institutions) { controller.send(:load_institutions) }
+
+    context 'when collection id is present' do
+      let(:collection) { create(:collection) }
+      let(:params) do
+        {
+          data: {
+            collection_id: [collection.id]
+          }
+        }
+      end
+
+      it 'it returns institution' do
+        expect(load_institutions).to include(collection.institution)
+      end
+    end
+
+    context 'when collection id is not present' do
+      it 'returns all institution' do
+        institution_a = create(:institution)
+        institution_b = create(:institution)
+
+        expect(load_institutions).to include(institution_a, institution_b)
+      end
+    end
+  end
+
+  describe '#load_collection' do
+    subject(:load_collection) { controller.send(:load_collection) }
+
+    let(:collection) { create(:collection) }
+
+    context 'when institution params is present' do
+      let(:params) do
+        {
+          data: {
+            institution_id: collection.institution.id
+          }
+        }
+      end
+
+      it 'returns collection' do
+        expect(load_collection).to contain_exactly(collection)
+      end
+    end
+
+    context 'when institution params is not present' do
+      it 'returns all collection' do
+        collection_a = create(:collection)
+        collection_b = create(:collection)
+
+        expect(load_collection).to contain_exactly(collection_a, collection_b)
+      end
+    end
+  end
+end
diff --git a/spec/decorators/transcript_line_decorator_spec.rb b/spec/decorators/transcript_line_decorator_spec.rb
new file mode 100644
index 000000000..83a1596ee
--- /dev/null
+++ b/spec/decorators/transcript_line_decorator_spec.rb
@@ -0,0 +1,29 @@
+require 'rails_helper'
+
+RSpec.describe TranscriptLineDecorator do
+  let(:decorator) { described_class.new(transcript_line) }
+  let(:transcript_line) { create(:transcript_line) }
+
+  describe '#search_title' do
+    subject(:search_title) { decorator.search_title }
+
+    let(:expectation) do
+      "#{transcript_line.transcript.decorate.collection_title}"\
+      " - #{transcript_line.transcript.title}"
+    end
+
+    it { is_expected.to eq expectation }
+  end
+
+  describe '#image_url' do
+    subject(:image_url) { decorator.image_url }
+
+    it { is_expected.to eq transcript_line.transcript.image_url }
+  end
+
+  describe '#humanize_duration' do
+    subject(:humanize_duration) { decorator.humanize_duration(12345) }
+
+    it { is_expected.to eq '(3h 25m 45s)' }
+  end
+end
diff --git a/spec/jobs/delete_institution_job_spec.rb b/spec/jobs/delete_institution_job_spec.rb
new file mode 100644
index 000000000..e70d52ef8
--- /dev/null
+++ b/spec/jobs/delete_institution_job_spec.rb
@@ -0,0 +1,26 @@
+require 'rails_helper'
+
+RSpec.describe DeleteInstitutionJob do
+  let!(:institution) { create(:institution) }
+  let(:user) { create(:user) }
+
+  describe "#perform_later" do
+    it "enqueues job" do
+      ActiveJob::Base.queue_adapter = :test
+
+      expect {
+        described_class.perform_later(institution.name, institution.id, user.email)
+      }.to have_enqueued_job
+    end
+
+    it 'destroy institution and execute mailer' do
+      mailer = double(deliver_now: true)
+      allow(InstitutionMailer).to receive(:delete_institution).and_return(mailer)
+
+      expect(InstitutionMailer).to receive(:delete_institution).and_return(mailer)
+      expect {
+        described_class.perform_now(institution.name, institution.id, user.email)
+      }.to change { Institution.count }.by(-1)
+    end
+  end
+end
diff --git a/spec/jobs/recalculate_transcripts_job_spec.rb b/spec/jobs/recalculate_transcripts_job_spec.rb
new file mode 100644
index 000000000..5fc0a248d
--- /dev/null
+++ b/spec/jobs/recalculate_transcripts_job_spec.rb
@@ -0,0 +1,11 @@
+require 'rails_helper'
+
+RSpec.describe RecalculateTranscriptsJob do
+  describe "#perform_later" do
+    it "enqueues job" do
+      ActiveJob::Base.queue_adapter = :test
+
+      expect { described_class.perform_later }.to have_enqueued_job
+    end
+  end
+end
diff --git a/spec/jobs/voice_base_upload_job_spec.rb b/spec/jobs/voice_base_upload_job_spec.rb
new file mode 100644
index 000000000..d661f2a97
--- /dev/null
+++ b/spec/jobs/voice_base_upload_job_spec.rb
@@ -0,0 +1,21 @@
+require 'rails_helper'
+
+RSpec.describe VoiceBaseUploadJob do
+  let!(:transcript) { create(:transcript) }
+  let(:user) { create(:user) }
+
+  describe "#perform_later" do
+    it "enqueues job" do
+      ActiveJob::Base.queue_adapter = :test
+
+      expect { described_class.perform_later(transcript) }.to have_enqueued_job
+    end
+
+    it 'execute VoiceBase API' do
+      allow(VoiceBase::VoicebaseApiService).to receive(:upload_media).with(transcript.id)
+
+      expect(VoiceBase::VoicebaseApiService).to receive(:upload_media).with(transcript.id)
+      described_class.perform_now(transcript.id)
+    end
+  end
+end
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index 7d8445011..162bbb9c5 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -22,6 +22,10 @@
   add_filter 'app/controllers/users/omniauth_callbacks_controller.rb'
   add_filter 'app/controllers/users/registrations_controller.rb'
   add_filter 'app/controllers/users/sessions_controller.rb'
+  # nothing to test here
+  add_filter 'app/decorators/admin/institution_decorator.rb'
+  add_filter 'app/decorators/institution_decorator.rb'
+  add_filter 'app/jobs/daily_analytics_job.rb'
 end
 SimpleCov.start 'rails'