Fix a test failure with recent versions of ... Pytest?  Python?

Taken from upstream:
https://github.com/keras-team/keras/commit/fe35050a8f18dc52304aa8da4e463eececa25240

diff --git a/tests/integration_tests/applications_test.py b/tests/integration_tests/applications_test.py
index 979f2f2abd6..6e3b57fa8e2 100644
--- a/tests/integration_tests/applications_test.py
+++ b/tests/integration_tests/applications_test.py
@@ -58,7 +58,8 @@ def _test_application_basic(app, last_dim=1000):
 def _test_application_notop(app, last_dim):
     output_shape = _get_output_shape(
         lambda: app(weights=None, include_top=False))
-    assert output_shape == (None, None, None, last_dim)
+    assert len(output_shape) == 4
+    assert output_shape[-1] == last_dim
 
 
 def test_mobilenet_v2_legacy_import():
lue='koszko-scripts'>koszko-scripts</option>
</select> <input type='submit' value='switch'/></form></td></tr>
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<div class='path'>path: <a href='/guix/log/?id=aa25663162f29d5a4323f7c4fd5643906e76c463'>root</a>/<a href='/guix/log/gnu?id=aa25663162f29d5a4323f7c4fd5643906e76c463'>gnu</a>/<a href='/guix/log/gnu/packages?id=aa25663162f29d5a4323f7c4fd5643906e76c463'>packages</a>/<a href='/guix/log/gnu/packages/serialization.scm?id=aa25663162f29d5a4323f7c4fd5643906e76c463'>serialization.scm</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/gnu/packages/serialization.scm?id=aa25663162f29d5a4323f7c4fd5643906e76c463&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2022-11-22 08:37:24 +0100'>2022-11-22</span></td><td><a href='/guix/commit/gnu/packages/serialization.scm?id=db6225d9dcfe617ec4e6f1b1baae0c3b9a6d7ca1'>gnu: Remove libbson.</a><span class='msg-avail'>...<span class='msg-tooltip'>This package fails to build and has been deprecated since 2018:

  https://github.com/mongodb/libbson

* gnu/packages/serialization.scm (libbson): Remove variable.
</span></span></td><td>Marius Bakke</td></tr>
d15581189dbc30e201db2b807273d6484f0'>Add '.guix-channel' file.</a><span class='msg-avail'>...<span class='msg-tooltip'>* .guix-channel: New file.
* Makefile.am (EXTRA_DIST): Add it.
</span></span></td><td>Ludovic Courtès</td></tr>
 commit.</a><span class='msg-avail'>...<span class='msg-tooltip'>Fixes a bug whereby authentication of a commit *not* descending from the
introductory commit could succeed, provided the commit verifies the
authorization invariant.

In the example below, A is a common ancestor of the introductory commit
I and of commit X.  Authentication of X would succeed, even though it is
not a descendant of I, as long as X is authorized according to the
'.guix-authorizations' in A:

   X   	 I
    \   /
      A

This is because, 'authenticate-repository' would not check whether X
descends from I, and the call (commit-difference X I) would return X.

In practice that only affects forks because it means that ancestors of
the introductory commit already contain a '.guix-authorizations' file.

* guix/git-authenticate.scm (authenticate-repository): Add call to
'commit-descendant?'.
* tests/channels.scm ("authenticate-channel, not a descendant of introductory commit"):
New test.
* tests/git-authenticate.scm ("authenticate-repository, target not a descendant of intro"):
New test.
* tests/guix-git-authenticate.sh: Expect earlier test to fail since
9549f0283a78fe36f2d4ff2a04ef8ad6b0c02604 is not a descendant of
$intro_commit.  Add new test targeting an ancestor of the introductory
commit, and another test targeting the v1.2.0 commit.
* doc/guix.texi (Specifying Channel Authorizations): Add a sentence.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2022-02-14 11:23:07 +0100'>2022-02-14</span></td><td><a href='/guix/commit/tests/git-authenticate.scm?id=36cb04df96623ffe8f1074172a4ed9e51bcf6e3a'>git-authenticate: Test introductory commit signature verification.</a><span class='msg-avail'>...<span class='msg-tooltip'>These tests mimic similar tests already in 'tests/channels.scm', but
without using the higher-level 'authenticate-channel'.

* tests/git-authenticate.scm ("introductory commit, valid signature")
("introductory commit, missing signature")
("introductory commit, wrong signature"): New tests.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2021-12-22 10:53:19 +0100'>2021-12-22</span></td><td><a href='/guix/commit/tests/git-authenticate.scm?id=9ebc9ca070a21ba0aeb3f61202a8071bb250ccc8'>tests: Move keys into ./tests/keys/ and add a third ed25519 key.</a><span class='msg-avail'>...<span class='msg-tooltip'>The third key will be used in an upcoming commit.

Rename public keys to .pub.

* guix/tests/gnupg.scm (%ed25519-3-public-key-file): New variable.
(%ed25519-3-secret-key-file): New variable.
(%ed25519-2-public-key-file): Renamed from %ed25519bis-public-key-file.
(%ed25519-2-secret-key-file): Renamed from %ed25519bis-secret-key-file.
* tests/keys/ed25519-3.key: New file.
* tests/keys/ed25519-3.sec: New file.

Signed-off-by: Mathieu Othacehe &lt;othacehe@gnu.org&gt;
</span></span></td><td>Attila Lendvai</td></tr>