public void GivenRemoteQueryWhenExecuteRemoteAsyncThenShouldReturnIRemoteQueryable()
{
var query = DbClientContext <TestThingContext> .Query(context => context.Things)
.Take(5);
var actual = query.ExecuteRemote();
Assert.IsAssignableFrom <IRemoteQueryable <TestThing> >(actual);
}
public void GivenExpressionOfCorrectTypeThenShouldBuildQueryWithContext()
{
var query = DbClientContext <TestThingContext> .Query(t => t.Things);
Assert.NotNull(query);
var remote = query as IRemoteQuery;
var context = remote.CustomProvider.Context;
Assert.Same(typeof(TestThingContext), context.Context);
var prop = typeof(TestThingContext).GetProperty(nameof(TestThingContext.Things));
Assert.Same(prop, context.Collection);
}
public async Task GivenQueryThenCountAsyncReturnsCount()
{
ServiceHost.Reset();
ServiceHost.Initialize(
registration => registration.RegisterSingleton <IRemoteQueryClient>(
new MockRemoteQueryClient()));
ServiceHost.GetService <IClientHttpConfiguration>()
.SetClientFactory(
() => new MockRemoteQueryClient
{
QueryType = QueryTestCase.Count
});
var actual = await DbClientContext <TestThingContext> .Query(
context => context.Things)
.ExecuteRemote()
.CountAsync();
Assert.Equal(5, actual);
}
public async Task GivenQueryThenSingleAsyncReturnsSingle()
{
ServiceHost.Reset();
ServiceHost.Initialize(
registration => registration.RegisterSingleton <IRemoteQueryClient>(
new MockRemoteQueryClient
{
QueryType = QueryTestCase.Single
}));
ServiceHost.GetService <IClientHttpConfiguration>()
.SetClientFactory(
() => ServiceHost.GetService <IRemoteQueryClient>());
var actual = await DbClientContext <TestThingContext> .Query(
context => context.Things)
.ExecuteRemote()
.FirstOrSingleAsync();
Assert.NotNull(actual);
Assert.IsType <TestThing>(actual);
}
public void GivenExpressionOnDifferentContextWhenQueryCalledThenShouldThrowArgument()
{
Assert.Throws <ArgumentException>(
() => DbClientContext <TestThingContext> .Query(q => new AltContext().AltThings));
}
public void GivenExpressionReferencesNonDbSetWenQueryCalledThenShouldThrowArgument()
{
Assert.Throws <ArgumentException>(
() => DbClientContext <TestThingContext> .Query(q => (object)q.NotThings as DbSet <object>));
}
public void GivenEmptyExpressionWhenQueryCalledThenShouldThrowArgumentNull()
{
Assert.Throws <ArgumentNullException>(
() => DbClientContext <TestThingContext> .Query <TestThingContext>(null));
}