need tests for DID Exchange / Connection Protocol

[dhh1128]

All of the following tests are needed.

• An overly long invitation is rejected since it can't be turned into a QR code?
• Agent can be either inviter or invitee.
• A public DID can be used as an implicit invitation.
• A connection resp that is not signed by the key used in the invitation generates a graceful error.
• A connection resp sent before a connection req generates a graceful error.
• A connection resp or connection req that uses a different thread from the previous message generates a graceful error.
• A connection resp or req that uses the same thread as previous, but an inconsistent state (e.g., different DID Doc or endpoint) is rejected.
• DID Docs with extra fields are handled.
• DID Docs lacking required fields are rejected.
• DID Docs lacking public keys of type {Ed25519|Secp256k1|RSA} are either handled fully, or generate a graceful error.
• A plaintext version of a connection request or connection response is gracefully rejected.

[dbluhm]

Progress:

• [ ] An overly long invitation is rejected since it can't be turned into a QR code?
• [x] Agent can be either inviter or invitee.
• [ ] A public DID can be used as an implicit invitation.
• [ ] A connection resp that is not signed by the key used in the invitation generates a graceful error.
• [ ] A connection resp sent before a connection req generates a graceful error.
• [ ] A connection resp or connection req that uses a different thread from the previous message generates a graceful error.
• [ ] A connection resp or req that uses the same thread as previous, but an inconsistent state (e.g., different DID Doc or endpoint) is rejected.
• [ ] DID Docs with extra fields are handled.
• [ ] DID Docs lacking required fields are rejected.
• [ ] DID Docs lacking public keys of type {Ed25519|Secp256k1|RSA} are either handled fully, or generate a graceful error.
• [ ] A plaintext version of a connection request or connection response is gracefully rejected.

[dbluhm]

A plaintext version of a connection request or connection response is gracefully rejected.

What would we consider a graceful rejection in this context? A 400?

[dhh1128]

The condition that's triggering a graceful rejection is that the message trust context doesn't confer enough trust to proceed. I would expect a graceful rejection to be a problem report explaining that.

[dbluhm]

Given that there are no keys to figure out which connection sent the message, would we expect this message to be returned in plaintext to the active http connection?

[dhh1128]

Actually, now that you point out that detail, I would be content with a 400