Finished OXXO charges and payments specs

+# frozen_string_literal: true
+require 'spec_helper'
+
+describe Var::ConektaHandler do
+  let!(:product) { 
+      # product = instance_double('Product')
+      # allow(product).to receive(:charge_with).and_return(:success)
+      # product
+    Product.create
+  }
+
+  let!(:var_mock) {
+    var = class_double('Var')
+    allow(var).to receive(:find_charge).and_return(product)
+    var
+  }
+
+  # TODO: Probar errores en Var.create_charge
+  it 'processes oxxo charge' do
+    conekta_object_mock = JSON.parse(
+      ConektaChargeCreateObject::OXXO_CREATE_CHARGE_OBJECT,
+      object_class: OpenStruct)
+  	allow_any_instance_of(Product).to receive(:conekta_charge)
+    .and_return(conekta_object_mock)
+  	
+    Var.create_charge(:conekta, product, {"conekta_type": "oxxo"})
+
+    expect(product.var_id).to eq conekta_object_mock.id
+    expect(product.var_service).to eq 'conekta'
+    expect(product.var_status).to eq('pending_payment')
+
+    Var::ConektaOxxoHandler.analyze(WebHookPostRequest::OXXO_CHARGE_CREATED)
+    expect(product.var_id).to eq conekta_object_mock.id
+    expect(product.var_service).to eq 'conekta'
+    expect(product.var_status).to eq('pending_payment')
+  end
+
+  it 'processes oxxo payment' do
+    conekta_object_mock = JSON.parse(
+      ConektaChargeCreateObject::OXXO_CREATE_CHARGE_OBJECT,
+      object_class: OpenStruct)
+    allow_any_instance_of(Product).to receive(:conekta_charge)
+    .and_return(conekta_object_mock)
+    
+    Var.create_charge(:conekta, product, {"conekta_type": "oxxo"})
+
+    expect(product.var_id).to eq conekta_object_mock.id
+    expect(product.var_service).to eq 'conekta'
+    expect(product.var_status).to eq('pending_payment')
+
+    Var::ConektaOxxoHandler.analyze(WebHookPostRequest::OXXO_CHARGE_PAID)
+    product.reload
+    
+    expect(product.var_id).to eq conekta_object_mock.id
+    expect(product.var_service).to eq 'conekta'
+    expect(product.var_status).to eq('paid')
+    expect(product.var_paid_amount).to_not be_nil
+    expect(product.var_fee).to_not be_nil
+    expect(product.var_payment_method).to eq('OXXO')
+    expect(product.var_payment_at).to_not be_nil
+  end
+end