diff --git a/spec/lib/manager_authenticator_spec.rb b/spec/lib/manager_authenticator_spec.rb
new file mode 100644
index 000000000..f9f09acce
--- /dev/null
+++ b/spec/lib/manager_authenticator_spec.rb
@@ -0,0 +1,48 @@
+require 'rails_helper'
+
+describe ManagerAuthenticator do
+  describe 'initialization params' do
+    it 'should cause auth to return false if blank login' do
+      authenticator = ManagerAuthenticator.new({login: "", clave_usuario: "31415926", fecha_conexion: "20151031135905"})
+      expect(authenticator.auth).to be false
+    end
+
+    it 'should cause auth to return false if blank user_key' do
+      authenticator = ManagerAuthenticator.new({login: "JJB033", clave_usuario: "", fecha_conexion: "20151031135905"})
+      expect(authenticator.auth).to be false
+    end
+
+    it 'should cause auth to return false if blank date' do
+      authenticator = ManagerAuthenticator.new({login: "JJB033", clave_usuario: "31415926", fecha_conexion: ""})
+      expect(authenticator.auth).to be false
+    end
+  end
+
+  describe '#auth' do
+    before(:all) do
+      @authenticator = ManagerAuthenticator.new({login: "JJB033", clave_usuario: "31415926", fecha_conexion: "20151031135905"})
+    end
+
+    it 'should return false if not manager_exists' do
+      allow(@authenticator).to receive(:manager_exists?).and_return(false)
+      allow(@authenticator).to receive(:application_authorized?).and_return(true)
+
+      expect(@authenticator.auth).to be false
+    end
+
+    it 'should return false if not application_authorized' do
+      allow(@authenticator).to receive(:manager_exists?).and_return(true)
+      allow(@authenticator).to receive(:application_authorized?).and_return(false)
+
+      expect(@authenticator.auth).to be false
+    end
+
+    it 'should return ok if manager_exists and application_authorized' do
+      allow(@authenticator).to receive(:manager_exists?).and_return(true)
+      allow(@authenticator).to receive(:application_authorized?).and_return(true)
+
+      expect(@authenticator.auth).to be_truthy
+    end
+
+  end
+end
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