Add test case for creating more than 20 identities

[Kailai-Wang]

Context

Follow-up of #1478

Mainly to see:

• if IDGraph will be capped
• how large is the returned IDGraph

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[outofxxx]

Using integritee-node & parachain 53515ec

Creating 22 identities stats:
Took 582 secs
id_graph 13012 bytes

Testcase:
https://github.com/zTgx/litentry-test-suit/blob/2d0ba6f558dc0c6774c2946c819c49c8958914ea/tests/test_corner_case.rs#L449-L455

[outofxxx]

Need add more tests:

• 50+ / 100 + identites
• using batch_all send every group of 10

[outofxxx]

🚩 Creating 60 identities stats:

        >>> Took 34 secs 

        >>> id_graph 52980 bytes 

test tc_batch_all_create_more_than_100_identities_and_check_idgraph_size ... ok

🚩 Creating 80 identities stats:

        >>> Took 44 secs 

        >>> id_graph 70360 bytes 

test tc_batch_all_create_more_than_100_identities_and_check_idgraph_size ... ok

🚩 Creating 90 identities stats:

        >>> Took 46 secs 

        >>> id_graph 79050 bytes 

test tc_batch_all_create_more_than_100_identities_and_check_idgraph_size ... ok

🚩 Creating 100 identities stats:

       No event return.

testcase

[Kailai-Wang]

Thank you for the effort 👍

I just realised the calculation of IDGraph size is probably wrong. The returned IDGraph in the IdentityVerified event will contain the current IDGraph of all linked identities, capped by 20 (see IDGRAPH_MAX_LEN in trusted_call.rs). That means you only need to check it once when the last identity is linked.

Examples:

• link and verify 1st identity => the IDGraph in the IdentityVerified event contains 1 identity
• link and verify 2nd identity => the IDGraph in the IdentityVerified event contains 2 identities
• ...
• link and verify 20th identity => the IDGraph in the IdentityVerified event contains 20 identities
• link and verify 21st identity => the IDGraph in the IdentityVerified event contains 20 identities (latest, the first identity is excluded)
• ..
• link and verify 100th identity => the IDGraph in the IdentityVerified event contains 20 identities (81st - 100th)

[Kailai-Wang]

So I expect the IDGraph in a similar size starting from the 20th identity.

I'm also wondering why no event returns for 100 identities (maybe batch_all limitations?)

[outofxxx]

After correcting the calculation method, the current update is as follows:

Created 40 identities, last IdentityVerifiedEvent id_graph(Vec<(Identity, IdentityContext).len() == 20) <920> bytes

testcase