OpenApiFilterService.CreateFilteredDocument fails if the document is missing the "components" field #1732
Description
Describe the bug
Calling OpenApiFilterService.CreateFilteredDocument on a document that does not contain the optional field OpenApiDocument.Components produces a NullReferenceException.
OpenApi File To Reproduce
Not an OpenApi File, but the following is enough to trigger it.
var openApiDoc = new OpenApiDocument
{
Info = new()
{
Title = "Test",
Version = "1.0.0"
},
Paths = new()
{
["/test"] = new OpenApiPathItem()
{
Operations = new Dictionary<OperationType, OpenApiOperation>
{
[OperationType.Get] = new OpenApiOperation()
}
}
}
};
var requestUrls = new Dictionary<string, List<string>>()
{
{ "/test", ["GET"] }
};
var filterPredicate = OpenApiFilterService.CreatePredicate(null, null, requestUrls, openApiDoc);
var filteredDocument = OpenApiFilterService.CreateFilteredDocument(openApiDoc, filterPredicate); // Error!Expected behavior
It should not fail, because the Components field is not mandatory. If it's necessary it should throw a more descriptive exception.
Additional context
Add any other context about the problem here.