public void MultipleSelectManyProjectionWorks()
{
var dataQuery = TestableThing.MakeQuery(5);
IQueryable <Tuple <string, string, string> > SelectMany(IQueryable <TestableThing> query) =>
query.SelectMany(t => t.ChildThings, (t, c) => new
{
parentId = t.Id,
childId = c.Id,
children = c.ChildThings
}).SelectMany(tc => tc.children, (tc, tcc) => new
{
tc.parentId,
tc.childId,
grandChildId = tcc.Id
}).Select(t => Tuple.Create(t.parentId, t.childId, t.grandChildId));
var query = SelectMany(IQueryableExtensions.CreateQueryTemplate <TestableThing>());
var root = QueryExprSerializer.Serialize(query);
var json = wrapper.FromSerializationRoot(root);
// make sure we're not just pulling from the cache
var deserializedRoot = wrapper.ToSerializationRoot(json);
var newQuery = QueryExprSerializer.DeserializeQuery <Tuple <string, string, string> >(deserializedRoot, dataQuery);
var expected = SelectMany(dataQuery).ToList();
var actual = newQuery.ToList();
Assert.NotNull(actual);
Assert.Equal(expected, actual);
}
public void GivenQueryWhenSerializeCalledThenShouldDeserialize(
IQueryable query,
Queries type)
{
var json = QueryExprSerializer.Serialize(query);
// make sure we're not just pulling from the cache
Reset();
IQueryable queryHost = TestableThing.MakeQuery(10);
var newQuery = QueryExprSerializer.DeserializeQuery(queryHost, json);
// can't do equivalency check for anonymous types
if (!query.AsEnumerableExpression().OfType <NewExpression>()
.Any(t => t.Type.IsAnonymousType()))
{
Assert.True(query.IsEquivalentTo(newQuery));
}
if (newQuery is IQueryable <ExpandoObject> anonymousQuery)
{
var list = anonymousQuery.ToList();
Assert.NotNull(list);
}
else if (newQuery is IQueryable <TestableThing> thingQuery)
{
var list = thingQuery.ToList();
ValidateQuery(list, type);
}
}
/// <summary>
/// Deserializes the query.
/// </summary>
/// <param name="template">The <see cref="IQueryable"/> to run.</param>
/// <param name="json">The stream with json info.</param>
/// <param name="logger">The logger.</param>
/// <returns>The <see cref="IQueryable"/> result.</returns>
public async Task <QueryResult> DeserializeAsync(
IQueryable template,
Stream json,
ILogger logger = null)
{
Ensure.NotNull(() => template);
Ensure.NotNull(() => json);
var request = await JsonSerializer.DeserializeAsync <SerializationPayload>(json);
Ensure.VariableNotNull(() => request);
Ensure.NotNullOrWhitespace(() => request.Json);
if (logger != null)
{
logger.LogInformation($"Query payload: {request.Json}");
}
var options = jsonOptions.Value();
var root = jsonSerializer.Value.ToSerializationRoot(request.Json, options);
var query = QueryExprSerializer.DeserializeQuery(template, root);
if (logger != null)
{
logger.LogInformation($"Deserialized query: {query.Expression}");
}
return(new QueryResult
{
Query = query,
QueryType = request.GetQueryType(),
});
}
public void GivenQueryCanSerializeAndDeserialize(IQueryable query, QueryExprSerializerTests.Queries queryType)
{
var root = QueryExprSerializer.Serialize(query, config => config.CompressExpressionTree(false));
var json = wrapper.FromSerializationRoot(root);
var deserializedRoot = wrapper.ToSerializationRoot(json);
Assert.NotNull(deserializedRoot);
IQueryable queryHost = TestableThing.MakeQuery(10);
var deserializedQuery = QueryExprSerializer.DeserializeQuery(queryHost, deserializedRoot);
Assert.NotNull(deserializedQuery);
Assert.True(query.Expression.IsEquivalentTo(deserializedQuery.Expression));
}
public void GivenQueryWhenSerializeCalledThenShouldDeserializeForType(
IQueryable <TestableThing> query,
Queries type)
{
var json = QueryExprSerializer.Serialize(query);
Reset();
var queryHost = TestableThing.MakeQuery(100);
var newQuery = QueryExprSerializer.DeserializeQuery <TestableThing>(json, queryHost);
Assert.True(query.IsEquivalentTo(newQuery));
ValidateQuery(newQuery.ToList(), type);
}
public void AlternateSelectManyWorks()
{
QueryExprSerializer.ConfigureRules(
rules => rules.RuleForType <RelatedThing>());
var db = typeof(JsonWrapperTests).Assembly.GetTypes()
.Select(t => new MockType
{
Id = t.ToString(),
Name = t.FullName,
Methods = t.GetMethods().Select(
m => new MockMethod
{
Id = m.ToString(),
Name = m.Name,
Parameters = m.GetParameters()
.Select(p => new MockParameter
{
Id = $"{p.Position}-{p.ParameterType}",
Name = p.Name,
}).ToList()
}).ToList()
});
Func <IQueryable <MockType>, IQueryable <RelatedThing> > makeQuery = q =>
q
.Where(t => t.Name != null)
.SelectMany(
t =>
t.Methods, (t, m) =>
new
{
t.Name,
MethodName = m.Name,
m.Parameters,
})
.SelectMany(
tm => tm.Parameters,
(tm, p) =>
new RelatedThing
{
TypeName = tm.Name,
MethodName = tm.MethodName,
ParameterName = p.Name,
})
.OrderBy(r => r.TypeName)
.ThenBy(r => r.MethodName)
.ThenBy(r => r.ParameterName);
var queryToSerialize = makeQuery(new List <MockType>().AsQueryable());
var root = QueryExprSerializer.Serialize(queryToSerialize);
var json = wrapper.FromSerializationRoot(root);
var deserializedRoot = wrapper.ToSerializationRoot(json);
var newQuery = QueryExprSerializer.DeserializeQuery <RelatedThing>(deserializedRoot, db.AsQueryable());
var result = makeQuery(db.AsQueryable());
var expected = result.ToList();
var actual = newQuery.ToList();
Assert.NotNull(actual);
Assert.Equal(expected.Count(), actual.Count());
}