api-gateway-config/tests/test.lua

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-- Unit tests for the apigateway using the busted framework.
-- @author Alex Song (songs)

package.path = package.path .. ';/usr/local/share/lua/5.2/?.lua' ..
    ';/usr/local/api-gateway/lualib/?.lua;/etc/api-gateway/scripts/lua/?.lua'
package.cpath = package.cpath .. ';/usr/local/lib/lua/5.2/?.so;/usr/local/api-gateway/lualib/?.so'

local fakengx = require 'fakengx'
local fakeredis = require 'fakeredis'
local cjson = require 'cjson'

local redis = require 'lib/redis'
local request = require 'lib/request'

describe('Testing Redis module', function()
  before_each(function()
    _G.ngx = fakengx.new()
    red = fakeredis.new()
  end)
  it('should generate a resource obj to store in redis', function()
    local key = 'resources:guest:hello'
    local gatewayMethod = 'GET'
    local backendUrl = 'https://httpbin.org:8000/get'
    local backendMethod = gatewayMethod
    local apiId = 12345
    local policies
    local security
    local expected = {
      operations = {
        [gatewayMethod] = {
          backendUrl = backendUrl,
          backendMethod = backendMethod
        }
      },
      apiId = apiId
    }
    expected = cjson.encode(expected)
    local generated = redis.generateResourceObj(red, key, gatewayMethod, backendUrl, backendMethod, apiId, policies, security)
    assert.are.same(expected, generated)
  end)
end)

describe('Testing Request module', function()
  before_each(function()
    _G.ngx = fakengx.new()
  end)
  it('should return correct error response', function()
    local code = 500
    local msg = 'Internal server error\n'
    request.err(code, msg)
    assert.are.equal(ngx._body, 'Error: ' .. msg)
    assert.are.equal(ngx._exit, code)
  end)
  it('should return correct success response', function()
    local code = 200
    local msg ='Success!\n'
    request.success(code, msg)
    assert.are.equal(ngx._body, msg)
    assert.are.equal(ngx._exit, code)
  end)
end)