在 ASP.NET Core 2 中,我有以下类IOptions<T>
public class MyOptions
{
public string Option1 { get; set; }
public string Option2 { get; set; }
}
public class MyService:IMyService
{
private readonly MyOptions _options;
public MyService(IOptions<MyOptions> options)
{
_options = options.Value;
}
}
应用程序设置.json
{
"Logging": {
"IncludeScopes": false,
"LogLevel": {
"Default": "Warning"
}
},
"MyOptions": {
"Option1": "option 1 value",
"Option2": "option 2 value"
}
}
然后我在startup.cs中注册选项如下
services.Configure<MyOptions>(Configuration.GetSection("MyOptions"));
dotnet 能够注入IOptions<MyOptions>
进入 MyService 类。
现在,我有集成测试项目。我已将相同的 appsettings.json 复制到集成测试项目中。我想创建实例IOptions<MyOptions>
从 appsettings.json 加载值
public class MyTestClass
{
private readonly IConfigurationRoot _config;
public MyTestClass()
{
_config = new ConfigurationBuilder()
.AddJsonFile("appsettings.json")
.Build();
}
[Fact]
public void MyTest()
{
// arrange
// this line returns NULL
var optionValue = _config.GetSection("MyOptions").Value;
// i also tried GetValue which returns NULL as well
//var optionValue = _config.GetValue<MyOptions>("MyOptions");
var options = Options.Create<MyOptions>(optionValue);
var service = new MyService(options);
//act
// assert
}
}
_config.GetSection("MyOptions").Value
and _config.GetValue<MyOptions>("MyOptions")
两者都返回 null。
when i do quick watch on _config
variable i see the values are loaded from appsettings.json