Add test for DHT pack_nodes and unpack_nodes

[Diadlo]

This change is 

[iphydf]

Please enable the checkbox "Allow edits from maintainers." on the bottom right.

[Diadlo]

Done

[iphydf]

Review status: 0 of 2 files reviewed at latest revision, 3 unresolved discussions.

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auto_tests/dht_test.c, line 686 at r1 (raw file):

    int unpacked_count = unpack_nodes(nodes_unpacked, size, &processed, data, length, tcp_enabled);
    ck_assert_msg(unpacked_count == size, "Wrong unpack_nodes result");
    ck_assert_msg(processed == packed_size, "unpack_nodes processed not all data");

"unpack_nodes did not process all data"

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auto_tests/dht_test.c, line 691 at r1 (raw file):

        const IP_Port *ipp1 = &nodes[i].ip_port;
        const IP_Port *ipp2 = &nodes_unpacked[i].ip_port;
        ck_assert_msg(ip_equal(&ipp1->ip, &ipp2->ip), "Unsucessful ip unpack");

"Unsuccessful" (3 times)

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auto_tests/dht_test.c, line 719 at r1 (raw file):

    random_bytes(ip, size);
    ipp->ip.family = family;

Remove empty line.

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Comments from Reviewable

[robinlinden]

Reviewed 2 of 2 files at r1.
Review status: all files reviewed at latest revision, 3 unresolved discussions.

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Comments from Reviewable

[iphydf]

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Review status: 0 of 2 files reviewed at latest revision, 3 unresolved discussions.

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Comments from Reviewable

[iphydf]

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Review status: 0 of 2 files reviewed at latest revision, 3 unresolved discussions.

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Comments from Reviewable

[robinlinden]

Reviewed 2 of 2 files at r2.
Review status: all files reviewed at latest revision, 3 unresolved discussions, some commit checks failed.

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Comments from Reviewable