Rspec的试验JSON后的Rails

控制器：payments_controller.rbRspec的试验JSON后的Rails

class PaymentsController < ApplicationController 

    # This is needed to have Postman work 
    skip_before_action :verify_authenticity_token 

    rescue_from ActiveRecord::RecordNotFound do |exception| 
    render json: 'not_found', status: :not_found 

    def create 
    new_payment = Payment.new(new_params) 
    current_loan = Loan.find(new_params[:loan_id]) 

    if Payment.valid?(new_payment, current_loan) 
     Payment.received(new_payment, current_loan) 
     current_loan.save 
     new_payment.save 
     redirect_to '/loans' 
    else 
     raise 'Amount entered is above the remaining balance' 
    end 
    end  

end

，当我在邮差测试这种方法的工作原理。但是，我似乎无法为其通过测试。我目前有：

payments_controller_spec.rb

require 'rails_helper' 

RSpec.describe PaymentsController, type: :controller do 

    describe "#create", :type => :request do 
    let!(:loan) {Loan.create!(id: 1, funded_amount: 500.0)} 
    params = '{"payment":{"amount":400, "loan_id":2}}' 

    it 'creates and saves a payment while saving the associated fund_amount of the loan' do 
     post "/payments", params.to_json, {'CONTENT_TYPE' => 'application/json', 'ACCEPT' => 'application/json'} 
     expect(loan.funded_amount).to eql(600.0) 
    end 
    end 
end

的错误是：

Failure/Error: post "/payments", params.to_json, {'CONTENT_TYPE' => 'application/json', 'ACCEPT' => 'application/json'} 
ActionController::ParameterMissing: 
    param is missing or the value is empty: payment

有效参数（与邮差的工作）是：

{"payment":{"amount":400,"loan_id":2}}

任何帮助将是不胜感激！

*** UPDATE ****

与此乱搞了一段时间后，我终于得到了它的这项工作：

describe "#create", :type => :request do 
    let!(:loan) {Loan.create!(id: 1, funded_amount: 500.0)} 

    it 'creates and saves a payment while saving the associated fund_amount of the loan' do 
    json = { :format => 'json', :payment => { :amount => 200.0, :loan_id => 1 } } 
    post '/payments', json 
    loan.reload 
    expect(loan.funded_amount).to eql(300.0) 
    end 
end

来源

2016-04-03 user3007294

'current_loan = Loan.find（new_params [：loan_id]）如果Payment.valid（new_payment，current_loan）' 我只是想知道如何ü传递整个对象？ – 7urkm3n

您可以在PARAMS这样的传球。

it 'creates and saves a payment while saving the associated fund_amount of the loan' do 
    post "/payments", payment: { amount: 400, loan_id: 1 }, {'CONTENT_TYPE' => 'application/json', 'ACCEPT' => 'application/json'} 
    expect(loan.funded_amount).to eql(600.0) 
end

来源

2016-04-03 21:16:24

谢谢安东尼。我不认为它喜欢付款：{amount：400，loan_id：1}不在引号中。我得到这个错误：桌面/ payments_challenge /规格/控制器/ payments_controller_spec.rb：10：语法错误，意外的'\ n'，期待=>（SyntaxError） – user3007294

嗯，你可以试试吗？ '{payment：{amount：400，loan_id：1}}' –

仍然无效：/ – user3007294

Rspec的试验JSON后的Rails

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