protected void Then <T>(string id, params DomainEvent <T>[] events) where T : AggregateRoot
{
if (events.Length == 0)
{
return;
}
formatter.Block("Then:");
foreach (var pair in results.Zip(events, (actual, expected) => new { actual, expected }))
{
var actual = pair.actual;
var expected = pair.expected;
var jActual = JObject.FromObject(actual, JsonSerializer.Create(settings));
var jExpected = JObject.FromObject(expected, JsonSerializer.Create(settings));
Assert(
actual.GetAggregateRootId().Equals(id) && JToken.DeepEquals(jActual, jExpected),
() => formatter.Write(expected, new EventFormatter(formatter)).NewLine(),
() =>
{
formatter.Block("But we got this:")
.Indent().Write(actual, new EventFormatter(formatter)).Unindent()
.EndBlock();
var differ = new Differ();
var diffs = differ.LineByLine(jActual.ToString(), jExpected.ToString());
var diff = differ.PrettyLineByLine(diffs);
formatter
.NewLine().NewLine()
.Write("Diff:").NewLine()
.Write(diff);
});
}
// consume events
results = results.Skip(events.Length);
}
protected void Then(string id, params DomainEvent[] events)
{
if (events.Length == 0)
{
return;
}
formatter.Block("Then:");
foreach (var expected in events)
{
if (results == null)
{
results = Context.History.Where(x => !arrangedEvents.Contains(x.GetGlobalSequenceNumber()));
}
var actual = results.FirstOrDefault();
if (actual == null)
{
Assert(false,
() => formatter.Write(expected, new EventFormatter(formatter)).NewLine(),
() => formatter.Block("But we got nothing."));
return;
}
expected.Meta[DomainEvent.MetadataKeys.AggregateRootId] = id;
var jActual = Context.EventSerializer.Serialize(actual);
var jExpected = Context.EventSerializer.Serialize(expected);
Assert(
actual.GetAggregateRootId().Equals(id) &&
actual.GetType() == expected.GetType() &&
jActual.Data.SequenceEqual(jExpected.Data),
() => formatter.Write(expected, new EventFormatter(formatter)).NewLine(),
() =>
{
formatter.Block("But we got this:")
.Indent().Write(actual, new EventFormatter(formatter)).Unindent()
.EndBlock();
if (!jActual.IsJson() || !jExpected.IsJson())
{
return;
}
var differ = new Differ();
var diffs = differ.LineByLine(
Encoding.UTF8.GetString(jActual.Data),
Encoding.UTF8.GetString(jExpected.Data));
var diff = differ.PrettyLineByLine(diffs);
formatter
.NewLine().NewLine()
.Write("Diff:").NewLine()
.Write(diff).NewLine();
});
// consume events
results = results.Skip(1);
}
}
private void ThenAssert(string id, bool matchExact = true, params DomainEvent[] events)
{
if (events.Length == 0)
{
return;
}
formatter.Block("Then:");
foreach (var expected in events)
{
if (results == null)
{
results = Context.History.Where(x => !arrangedEvents.Contains(x.GetGlobalSequenceNumber()));
}
var actual = results.FirstOrDefault();
if (actual == null)
{
Assert(false,
() => formatter.Write(expected, new EventFormatter(formatter)).NewLine(),
() => formatter.Block("But we got nothing."));
return;
}
expected.Meta[DomainEvent.MetadataKeys.AggregateRootId] = id;
if (!matchExact)
{
RemoveNotProvidedPropertiesInExpectedFromActual();
}
var jActual = Context.EventSerializer.Serialize(actual);
var jExpected = Context.EventSerializer.Serialize(expected);
Assert(
actual.GetAggregateRootId().Equals(id) && actual.GetType() == expected.GetType() && jActual.Data.SequenceEqual(jExpected.Data),
() => formatter.Write(expected, new EventFormatter(formatter)).NewLine(),
() => {
formatter.Block("But we got this:")
.Indent().Write(actual, new EventFormatter(formatter)).Unindent()
.EndBlock();
if (!jActual.IsJson() || !jExpected.IsJson())
{
return;
}
var differ = new Differ();
var diffs = differ.LineByLine(
Encoding.UTF8.GetString(jActual.Data),
Encoding.UTF8.GetString(jExpected.Data));
var diff = differ.PrettyLineByLine(diffs);
formatter
.NewLine().NewLine()
.Write("Diff:").NewLine()
.Write(diff).NewLine();
});
// consume events
results = results.Skip(1);
#region Local Functions
void RemoveNotProvidedPropertiesInExpectedFromActual()
{
var expectedProperties = expected.GetType().GetProperties();
foreach (var expectedProperty in expectedProperties)
{
if (IsExpectedValueIgnored(out var defaultValue))
{
SetActualValueToDefaultValue();
}
bool IsExpectedValueIgnored(out object dv)
{
dv = GetDefault(expectedProperty.PropertyType);
var actualExpectedValue = expectedProperty.GetValue(expected);
return(object.Equals(actualExpectedValue, dv));
}
void SetActualValueToDefaultValue()
{
var test = System.ComponentModel.TypeDescriptor.GetProperties(actual)[expectedProperty.Name];
if (test != null) //if types not same
{
test.SetValue(actual, defaultValue);
}
}
}
}
#endregion
}
}
