diff --git a/spec/finders/text_search_spec.rb b/spec/finders/text_search_spec.rb
new file mode 100644
index 000000000..65235a239
--- /dev/null
+++ b/spec/finders/text_search_spec.rb
@@ -0,0 +1,51 @@
+require 'rails_helper'
+
+describe ::TextSearch do
+  subject(:text_search) { described_class.new(user_1, params) }
+
+  let!(:account) { create(:account) }
+  let!(:user_1) { create(:user, account: account) }
+  let!(:user_2) { create(:user, account: account) }
+  let!(:inbox) { create(:inbox, account: account, enable_auto_assignment: false) }
+
+  before do
+    create(:inbox_member, user: user_1, inbox: inbox)
+    create(:inbox_member, user: user_2, inbox: inbox)
+
+    create(:contact, name: '1223', account_id: account.id)
+    create(:contact, name: 'Potter', account_id: account.id)
+    contact_2 = create(:contact, name: 'Harry Potter', account_id: account.id)
+    conversation_1 = create(:conversation, account: account, inbox: inbox, assignee: user_1, display_id: 121)
+    conversation_2 = create(:conversation, account: account, inbox: inbox, assignee: user_1, display_id: 122)
+    create(:conversation, account: account, inbox: inbox, assignee: user_1, status: 'resolved', display_id: 13, contact_id: contact_2.id)
+    create(:conversation, account: account, inbox: inbox, assignee: user_2, display_id: 14)
+    create(:conversation, account: account, inbox: inbox, display_id: 15)
+    Current.account = account
+
+    create(:message, conversation_id: conversation_1.id, account_id: account.id, content: 'Ask Lisa')
+    create(:message, conversation_id: conversation_1.id, account_id: account.id, content: 'message_12')
+    create(:message, conversation_id: conversation_1.id, account_id: account.id, content: 'message_13')
+
+    create(:message, conversation_id: conversation_2.id, account_id: account.id, content: 'Pottery Barn order')
+    create(:message, conversation_id: conversation_2.id, account_id: account.id, content: 'message_22')
+    create(:message, conversation_id: conversation_2.id, account_id: account.id, content: 'message_23')
+  end
+
+  describe '#perform' do
+    context 'with text search' do
+      it 'filter conversations by number' do
+        params = { q: '12' }
+        result = described_class.new(user_1, params).perform
+        expect(result[:conversations].length).to be 2
+        expect(result[:contacts].length).to be 1
+      end
+
+      it 'filter conversations by string' do
+        params = { q: 'pot' }
+        result = described_class.new(user_1, params).perform
+        expect(result[:messages].length).to be 1
+        expect(result[:contacts].length).to be 1
+      end
+    end
+  end
+end