public void Build_PredicateFuncs_Empty()
{
new TestCaseRunner()
.Run(() => FilterPipeline.Build(new MiddlewareFunc <DummyContext, Task <PredicateFunc <DummyEntity> > > [0]))
.Verify((actual, desc) => {
var actualPredicate = actual(new DummyContext()).GetAwaiter().GetResult();
Assert.AreEqual(PredicateMiddleware <DummyContext, DummyEntity> .NullPredicate, actualPredicate, desc);
}, (Type)null);
}
public async Task Usage_IMiddleware()
{
var middlewares = new PredicateMiddleware <Uri, FileInfo>[] {
new HttpsPredicate(),
new StaticFilePredicate(),
};
Func <Uri, Task <PredicateFunc <FileInfo> > > pipeline = FilterPipeline.Build(middlewares.Select(x => x.ToDelegate()));
var predicate = await pipeline(new Uri("https://example.com/foo"));
Assert.AreEqual(true, predicate(new FileInfo("foo.html")));
Assert.AreEqual(false, predicate(new FileInfo("bar.html")));
Assert.AreEqual(false, (await pipeline(new Uri("http://example.com/foo")))(new FileInfo("foo.html")));
}
public async Task Usage_MiddlewareFunc()
{
Func <Uri, Task <PredicateFunc <FileInfo> > > pipeline = FilterPipeline.Build(new MiddlewareFunc <Uri, Task <PredicateFunc <FileInfo> > >[] {
next => async context => {
if (!context.Scheme.Equals("https", StringComparison.OrdinalIgnoreCase))
{
return(_ => false);
}
return(await next(context));
},
next => async context => {
var nextPredicate = await next(context);
var uriPath = context.AbsolutePath.TrimStart('/');
return(file => Path.GetFileNameWithoutExtension(file.Name).Equals(uriPath, StringComparison.OrdinalIgnoreCase) && nextPredicate(file));
},
});
var predicate = await pipeline(new Uri("https://example.com/foo"));
Assert.AreEqual(true, predicate(new FileInfo("foo.html")));
Assert.AreEqual(false, predicate(new FileInfo("bar.html")));
Assert.AreEqual(false, (await pipeline(new Uri("http://example.com/foo")))(new FileInfo("foo.html")));
}
public void Build_PredicateFuncs_Null()
{
new TestCaseRunner()
.Run(() => FilterPipeline.Build((MiddlewareFunc <DummyContext, Task <PredicateFunc <DummyEntity> > >[])null))
.Verify((actual, desc) => { }, typeof(ArgumentNullException));
}