cossacklabs / themis / #7649

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<a href="https://github.com/cossacklabs/themis/commit/<a class=hub.com/cossacklabs/themis/commit/3929f1665dbd5f53babc8b3f96b0e381a2e0a59f">3929f1665<a href="https://github.com/cossacklabs/themis/commit/3929f1665dbd5f53babc8b3f96b0e381a2e0a59f
">
&quot;&gt;[cherry-pick] Drop layout tests from libthemis-sys

struct secure_session_user_callbacks_type and others include
architecture-specific types such as pointers and size_t values.

Commit 85af22d (Drop &amp;quot;bindgen&amp;quot; from libthemis-sys dependencies,
2020-04-25) has replaced on-the-fly invocation of Bindgen with
using pregenerated files. Unfortunately, we cannot use layout
tests in these files since they end up architecture-specific.

On 64-bit machines -- such as the one used to generate the files --
secure_session_user_callbacks_type uses 40 bytes of storage while
on 32-bit machiens is requires only 20 bytes. We cannot include
a test that simply compares the size with a constant &amp;quot;40&amp;quot;.

I don&amp;#39;t want to complicate things too much just because of those tests
so let&amp;#39;s simply drop them.

(cherry picked from commit </a><a class="double-link" href="https://github.com/cossacklabs/themis/commit/<a class="double-link" href="https://github.com/cossacklabs/themis/commit/afce5fc7563f02bd7c7ae8cdfec4cbb72690a773">afce5fc75</a>">afce5fc75</a><a href="https://github.com/cossacklabs/themis/commit/3929f1665dbd5f53babc8b3f96b0e381a2e0a59f
">)

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