C# 读取.NET核心测试项目中的appsettings json值
我的Web应用程序需要从appsettings.json文件中读取文档DB密钥。我创建了一个具有键名的类,并将C# 读取.NET核心测试项目中的appsettings json值,c#,unit-testing,asp.net-core,appsettings,C#,Unit Testing,Asp.net Core,Appsettings,我的Web应用程序需要从appsettings.json文件中读取文档DB密钥。我创建了一个具有键名的类,并将ConfigureServices()中的配置部分作为: public Startup(IHostingEnvironment env) { var builder = new ConfigurationBuilder() .AddJsonFile("appsettings.json", optional: true, reloadOnChan
ConfigureServices()
中的配置部分作为:
public Startup(IHostingEnvironment env) {
var builder = new ConfigurationBuilder()
.AddJsonFile("appsettings.json", optional: true, reloadOnChange: true)
.AddEnvironmentVariables();
Configuration = builder.Build();
}
public IConfigurationRoot Configuration { get; }
public void ConfigureServices(IServiceCollection services) {
services.AddMvc().AddJsonOptions(options => options.SerializerSettings.ContractResolver = new DefaultContractResolver());
services.AddSession();
Helpers.GetConfigurationSettings(services, Configuration);
DIBuilder.AddDependency(services, Configuration);
}
我正在寻找读取测试项目中的键值的方法。在测试项目的
project.json
中,添加以下依赖项:
"dependencies": {
"xunit": "2.2.0-beta2-build3300",
"Microsoft.AspNetCore.TestHost": "1.0.0",
"dotnet-test-xunit": "2.2.0-preview2-build1029",
"BancoSentencas": "1.0.0-*"
},
BancoSentencas
是我想要测试的项目。其他包来自xUnit和TestHost,后者将是我们的内存服务器
还包括appsettings.json的此生成选项:
"buildOptions": {
"copyToOutput": {
"include": [ "appsettings.Development.json" ]
}
}
在我的测试项目中,我有以下测试类:
public class ClasseControllerTeste : IClassFixture<TestServerFixture> {
public ClasseControllerTeste(TestServerFixture fixture) {
Fixture = fixture;
}
protected TestServerFixture Fixture { get; private set; }
[Fact]
public async void TestarRecuperarClassePorId() {
using(var client = Fixture.Client) {
var request = await Fixture.MyHttpRequestMessage(HttpMethod.Get, "/api/classe/1436");
var response = await client.SendAsync(request);
string obj = await response.Content.ReadAsStringAsync();
ClasseModel classe = JsonConvert.DeserializeObject<ClasseModel>(obj);
Assert.NotNull(classe);
Assert.Equal(1436, classe.Id);
}
}
}
公共类ClasseControllerTeste:IClassFixture{
公共类控制器测试(TestServerFixture){
夹具=夹具;
}
受保护的TestServerFixture Fixture{get;private set;}
[事实]
公共异步无效TestarRecuperarclassporid(){
使用(var client=Fixture.client){
var request=await Fixture.MyHttpRequestMessage(HttpMethod.Get,“/api/classe/1436”);
var response=wait client.sendaync(请求);
string obj=await response.Content.ReadAsStringAsync();
ClasseModel classe=JsonConvert.DeserializeObject(obj);
Assert.NotNull(classe);
断言相等(1436,类别Id);
}
}
}
我还有TestServerFixture类,它将配置内存服务器:
public class TestServerFixture : IDisposable {
private TestServer testServer;
protected TestServer TestServer {
get {
if (testServer == null)
testServer = new TestServer(new WebHostBuilder().UseEnvironment("Development").UseStartup<Startup>());
return testServer;
}
}
protected SetCookieHeaderValue Cookie { get; set; }
public HttpClient Client {
get {
return TestServer.CreateClient();
}
}
public async Task<HttpRequestMessage> MyHttpRequestMessage(HttpMethod method, string requestUri) {
...
login stuff...
...
Cookie = SetCookieHeaderValue.Parse(response.Headers.GetValues("Set-Cookie").First());
var request = new HttpRequestMessage(method, requestUri);
request.Headers.Add("Cookie", new CookieHeaderValue(Cookie.Name, Cookie.Value).ToString());
request.Headers.Accept.ParseAdd("text/xml");
request.Headers.AcceptCharset.ParseAdd("utf-8");
return request;
}
public void Dispose() {
if (testServer != null) {
testServer.Dispose();
testServer = null;
}
}
}
公共类TestServerFixture:IDisposable{
专用测试服务器;
受保护的TestServer TestServer{
得到{
if(testServer==null)
testServer=新的testServer(新的WebHostBuilder().UseEnvironment(“Development”).UseStartup());
返回testServer;
}
}
受保护的SetCookieHeaderValue Cookie{get;set;}
公共HttpClient客户端{
得到{
返回TestServer.CreateClient();
}
}
公共异步任务MyHttpRequestMessage(HttpMethod方法,字符串请求URI){
...
登录资料。。。
...
Cookie=SetCookieHeaderValue.Parse(response.Headers.GetValues(“Set Cookie”).First());
var request=newhttprequestmessage(方法,requestUri);
添加(“Cookie”,新的CookieHeaderValue(Cookie.Name,Cookie.Value).ToString());
request.Headers.Accept.ParseAdd(“text/xml”);
request.Headers.AcceptCharset.ParseAdd(“utf-8”);
返回请求;
}
公共空间处置(){
if(testServer!=null){
Dispose();
testServer=null;
}
}
}
这就是我测试项目的方式。我使用主项目中的Startup.cs,从测试项目(appsettings.Development.json)中的appsettings.json创建一个副本。老实说,如果您正在对应用程序进行单元测试,您应该尝试将正在测试的类与所有依赖项隔离开来,比如调用其他类、访问文件系统、数据库、,网络等,除非您正在进行集成测试或功能测试
话虽如此,要对应用程序进行单元测试,您可能需要模拟appsettings.json文件中的这些值,然后测试您的逻辑
因此,您的appsettings.json
如下所示
"DocumentDb": {
"Key": "key1"
}
// ...
private readonly DocumentDbSettings _settings;
public HomeController(IOptions<DocumentDbSettings> settings)
{
_settings = settings.Value;
}
// ...
public string TestMe()
{
return $"processed_{_settings.Key}";
}
然后创建一个设置类
public class DocumentDbSettings
{
public string Key { get; set; }
}
然后在ConfigureServices()
方法中注册它
services.Configure<DocumentDbSettings>(Configuration.GetSection("DocumentDb"));
services.Configure(Configuration.GetSection(“DocumentDb”);
例如,您的控制器/类可以如下所示
"DocumentDb": {
"Key": "key1"
}
// ...
private readonly DocumentDbSettings _settings;
public HomeController(IOptions<DocumentDbSettings> settings)
{
_settings = settings.Value;
}
// ...
public string TestMe()
{
return $"processed_{_settings.Key}";
}
/。。。
私有只读文档设置;
公共家庭控制器(IOPS设置)
{
_设置=设置.值;
}
// ...
公共字符串TestMe()
{
返回$“已处理的{{u设置.Key}”;
}
然后在测试项目中,您可以创建这样的单元测试类
public class HomeControllerTests
{
[Fact]
public void TestMe_KeyShouldBeEqual_WhenKeyIsKey1()
{
// Arrange
const string expectedValue = "processed_key1";
var configMock = Substitute.For<IOptions<DocumentDbSettings>>();
configMock.Value.Returns(new DocumentDbSettings
{
Key = "key1" // Mocking the value from your config
});
var c = new HomeController(configMock);
// Act
var result = c.TestMe();
// Assert
Assert.Equal(expectedValue, result);
}
}
公共类HomeControllerTests
{
[事实]
公共无效测试密钥应在密钥密钥1()时保持相等
{
//安排
const string expectedValue=“已处理的密钥1”;
var configMock=Substitute.For();
configMock.Value.Returns(新文档设置
{
Key=“key1”//模拟配置中的值
});
var c=新的HomeController(configMock);
//表演
var result=c.TestMe();
//断言
Assert.Equal(预期值、结果);
}
}
我使用NSubstitute v2.0.0-rc进行模拟。将
appSettings.json
复制到测试项目根目录,并将其属性标记为Content,如果更新,则复制
ConfigurationManager
是一个类,它具有静态属性Configuration
。这样整个应用程序就可以通过ConfigurationManager.Configuration[]
访问它,这是基于博客文章(为.NET Core 1.0编写的)
appsettings.test.json
)不同于正常的appsettings.json
,因为如果使用相同的名称,主项目中的文件可能会覆盖测试项目中的文件public static IConfiguration InitConfiguration()
{
var config = new ConfigurationBuilder()
.AddJsonFile("appsettings.test.json")
.Build();
return config;
}
var config = InitConfiguration();
var clientId = config["CLIENT_ID"]
var options=config.Get();
当修改如下时,Suderson的解决方案对我有效:
var builder = new ConfigurationBuilder()
.SetBasePath(Directory.GetCurrentDirectory())
.AddJsonFile("appsettings.json", optional: false, reloadOnChange: true)
.AddEnvironmentVariables();
IConfiguration config = builder.Build();
//Now, You can use config.GetSection(key) to get the config entries
对于ASP.NET Core 2.x项目,将
appsettings.json
文件自动复制到build dir:
<Project Sdk="Microsoft.NET.Sdk">
<ItemGroup>
<None Include="..\MyProj\appsettings.json" CopyToOutputDirectory="PreserveNewest" />
</ItemGroup>
</Project>
如果您使用的是
WebApplicationFactory
,并且您已经有了获取配置值的方法
[TestClass]
public class IntegrationTests
{
public IntegrationTests()
{
var config = new ConfigurationBuilder().AddJsonFile("appconfig.json").Build();
_numberOfPumps = Convert.ToInt32(config["NumberOfPumps"]);
_numberOfMessages = Convert.ToInt32(config["NumberOfMessages"]);
_databaseUrl = config["DatabaseUrlAddress"];
}
}
public static class ConfigurationHelper
{
public static IConfigurationRoot GetConfiguration()
{
byte[] byteArray = Encoding.ASCII.GetBytes("{\"Root\":{\"Section\": { ... }}");
using var stream = new MemoryStream(byteArray);
return new ConfigurationBuilder()
.AddJsonStream(stream)
.Build();
}
}
Stream configStream =
Assembly.GetExecutingAssembly()
.GetManifestResourceStream("MyNamespace.AppName.Test.appsettings.test.json");
IConfigurationRoot config = new ConfigurationBuilder()
.AddJsonStream(configStream)
.AddEnvironmentVariables()
.Build();