我在测试Sensu插件时遇到了问题。每次当我启动rspec测试插件时,它都会测试它,但无论如何,在测试结束时,原始插件会自动启动。所以我在控制台输入:
Finished in 0 seconds (files took 0.1513 seconds to load)
1 example, 0 failures
CheckDisk OK: # This comes from the plugin
我的系统如何工作的简短解释:插件调用系统'wmic'命令,处理它,检查磁盘参数的条件并返回退出状态(ok, critical,等等)Rspec模拟来自系统的响应,并设置为插件的输入。当给出模拟输入时,rspec检查插件退出状态。
我的插件是这样的:
require 'rubygems' if RUBY_VERSION < '1.9.0'
require 'sensu-plugin/check/cli'
class CheckDisk < Sensu::Plugin::Check::CLI
def initialize
super
@crit_fs = []
end
def get_wmic
`wmic volume where DriveType=3 list brief`
end
def read_wmic
get_wmic
# do something, fill the class variables with system response
end
def run
severity = "ok"
msg = ""
read_wmic
unless @crit_fs.empty?
severity = "critical"
end
case severity
when /ok/
ok msg
when /warning/
warning msg
when /critical/
critical msg
end
end
end
下面是我在Rspec中的测试:
require_relative '../check-disk.rb'
require 'rspec'
def loadFile
#Load template of system output when ask 'wmic volume(...)
end
def fillParametersInTemplate (template, parameters)
#set mocked disk parameters in template
end
def initializeMocks (options)
mockedSysOutput = fillParametersInTemplate @loadedTemplate, options
po = String.new(mockedSysOutput)
allow(checker).to receive(:get_wmic).and_return(po) #mock system call here
end
describe CheckDisk do
let(:checker) { described_class.new }
before(:each) do
@loadedTemplate = loadFile
def checker.critical(*_args)
exit 2
end
end
context "When % of free disk space = 10 >" do
options = {:diskName => 'C:\', :diskSize => 1000, :diskFreeSpace => 100}
it 'Returns ok exit status ' do
begin
initializeMocks options
checker.run
rescue SystemExit => e
exit_code = e.status
end
expect(exit_code).to eq 0
end
end
end
我知道我可以在最后一个例子后面放"exit 0",但这不是一个解决方案,因为当我尝试启动许多规范文件时,它将在第一个文件之后退出。如何开始只测试,而不运行插件?也许有人可以帮助我,告诉我如何处理这样的问题?谢谢你。
您可以存根原始插件调用,并可选择返回一个虚拟对象:
allow(SomeObject).to receive(:method) # .and_return(double)
你可以把它放在before
块,以确保所有断言将共享代码。
另一件事是,您正在使用rescue
块来捕获代码因错误而终止的情况。你应该使用raise_error
匹配器代替:
expect { run }.to raise_error(SystemExit)