public static ConnectedProjectionTestSpecification <TContext> Expect <TContext, TEntity>(
this ConnectedProjectionScenario <TContext> scenario,
IEntityComparer <TEntity> comparer,
Func <TContext, IQueryable <TEntity> > query,
params TEntity[] expectedEntities) where TEntity : class
{
return(scenario.Verify(async ctx =>
{
var actualEntities = await query(ctx).ToListAsync();
if (actualEntities.Count != expectedEntities.Length)
{
return VerificationResult.Fail(
$" Expected {expectedEntities.Length} entities, but found {actualEntities.Count} entities. {actualEntities.ToLogStringLimited(max: 10)}");
}
var differences = expectedEntities
.Zip(actualEntities, (expected,
actual) => new
{
expected,
actual
})
.SelectMany(x => comparer.Compare(x.expected, x.actual))
.ToList();
using (var writer = new StringWriter())
{
writer.WriteLine(" Expected: {0} entities ({1}),",
expectedEntities.Length,
expectedEntities.ToLogStringLimited(max: 10));
if (!differences.Any())
{
writer.WriteLine(" Actual: {0} entities ({1}),",
actualEntities.Count,
actualEntities.ToLogStringLimited(max: 10));
return VerificationResult.Pass(writer.ToString());
}
writer.WriteLine(" But found the following differences:");
foreach (var difference in differences)
{
writer.WriteLine(" {0}", difference.Message);
}
return VerificationResult.Fail(writer.ToString());
}
}));
}
public static ConnectedProjectionTestSpecification <TContext> ExpectNone <TContext, TEntity>(
this ConnectedProjectionScenario <TContext> scenario,
Func <TContext, IQueryable <TEntity> > query) where TEntity : class
{
return(scenario.Verify(async ctx =>
{
var actualEntities = await query(ctx).ToListAsync();
if (actualEntities.Count > 0)
{
return VerificationResult.Fail(
$" Expected none, but found {actualEntities.Count} entities. {actualEntities.ToLogStringLimited(max: 10)}");
}
return VerificationResult.Pass($" Expected: none{Environment.NewLine} Actual: none");
}));
}
