public async Task MiddlewareCanShortCircuit()
{
var provider = new ServiceCollection()
.BuildServiceProvider(true);
var app = new CommandApplicationBuilder(new Dictionary <string, object>(), provider);
app.Use((next) =>
{
return(context =>
{
return Task.CompletedTask;
});
});
var cmdDelegate = app.Build();
var context = new CommandContext()
{
ServiceScopeFactory = provider.GetRequiredService <IServiceScopeFactory>(),
};
await cmdDelegate(context);
Assert.Null(context.Result);
Assert.Null(context.Command);
}
public async Task AlwaysInitializedWhenRunContext()
{
var services = new ServiceCollection();
services.AddScoped <ICommandContextAccessor, ScopedCommandContextAccessor>();
services.AddScoped <TestDependency>();
using var provider = services.BuildServiceProvider(true);
var scopeFactory = provider.GetRequiredService <IServiceScopeFactory>();
using var scope = scopeFactory.CreateScope();
var context = new CommandContext();
context.ServiceScopeFactory = scopeFactory;
var app = new CommandApplicationBuilder(new Dictionary <string, object>(), provider);
app.Use((next) =>
{
return((context) =>
{
return Task.CompletedTask;
});
});
var commandDelegate = app.Build();
await commandDelegate(context);
var commandContextAccessor = context.CommandServices.GetRequiredService <ICommandContextAccessor>();
var testDependency = context.CommandServices.GetRequiredService <TestDependency>();
Assert.NotNull(commandContextAccessor);
Assert.NotNull(commandContextAccessor.CommandContext);
Assert.NotNull(testDependency);
Assert.NotNull(testDependency.CommandContext);
Assert.Equal(context, commandContextAccessor.CommandContext);
Assert.Equal(context, testDependency.CommandContext);
}
public async Task MiddlewaresWillBeBuildedInCorrectOrder()
{
var provider = new ServiceCollection()
.BuildServiceProvider(true);
var app = new CommandApplicationBuilder(new Dictionary <string, object>(), provider);
var logKey = "LOG";
var log1 = "Start middleware 1";
var log2 = "Finish middleware 1";
var log3 = "Start middleware 2";
var log4 = "Finish middleware 2";
var log5 = "Start middleware 3";
var log6 = "Finish middleware 3";
app.Use((next) =>
{
return(async context =>
{
var logs = context.Items[logKey] as List <string>;
logs.Add(log1);
await next(context);
logs.Add(log2);
});
});
app.Use((next) =>
{
return(async context =>
{
var logs = context.Items[logKey] as List <string>;
logs.Add(log3);
await next(context);
logs.Add(log4);
});
});
app.Use((next) =>
{
return(async context =>
{
var logs = context.Items[logKey] as List <string>;
logs.Add(log5);
await next(context);
logs.Add(log6);
});
});
var cmdDelegate = app.Build();
var context = new CommandContext()
{
Result = new Mock <IResult>().Object,
Command = new Mock <ICommand>().Object,
ServiceScopeFactory = provider.GetRequiredService <IServiceScopeFactory>(),
};
context.Items[logKey] = new List <string>();
await cmdDelegate(context);
var logs = context.Items[logKey] as List <string>;
Assert.NotNull(context.Result);
Assert.NotNull(context.Command);
Assert.Equal(logs[0], log1);
Assert.Equal(logs[1], log3);
Assert.Equal(logs[2], log5);
Assert.Equal(logs[3], log6);
Assert.Equal(logs[4], log4);
Assert.Equal(logs[5], log2);
}
