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Blame SOURCES/0137-TESTS-Add-a-test-for-parallel-execution-of-klist.patch

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From 7930ee12093eae1e1ab9422c4f4f9f8c5661fcb9 Mon Sep 17 00:00:00 2001
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From: Jakub Hrozek <jhrozek@redhat.com>
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Date: Tue, 23 May 2017 13:55:01 +0200
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Subject: [PATCH 137/138] TESTS: Add a test for parallel execution of klist
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Integration test for:
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    https://pagure.io/SSSD/sssd/issue/3372
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With https://pagure.io/SSSD/sssd/issue/3372 still broken, the unit test
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wold fail because one of the concurrent klist commands would trigger a
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race condition in the KCM queue code, crashing the KCM responder.
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Reviewed-by: Pavel Březina <pbrezina@redhat.com>
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(cherry picked from commit 274489b092bba5fc81cb0f803843d56b267c5aaf)
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---
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 src/tests/intg/krb5utils.py |  6 +++++-
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 src/tests/intg/test_kcm.py  | 22 ++++++++++++++++++++++
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 2 files changed, 27 insertions(+), 1 deletion(-)
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diff --git a/src/tests/intg/krb5utils.py b/src/tests/intg/krb5utils.py
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index 775cffd0bbfa011f2d8ffc1169dccfef96d78fab..0349ff3829533088fb2263f84b19574127d6e809 100644
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--- a/src/tests/intg/krb5utils.py
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+++ b/src/tests/intg/krb5utils.py
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@@ -36,7 +36,7 @@ class Krb5Utils(object):
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     def __init__(self, krb5_conf_path):
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         self.krb5_conf_path = krb5_conf_path
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-    def _run_in_env(self, args, stdin=None, extra_env=None):
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+    def spawn_in_env(self, args, stdin=None, extra_env=None):
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         my_env = os.environ
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         my_env['KRB5_CONFIG'] = self.krb5_conf_path
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@@ -50,6 +50,10 @@ class Krb5Utils(object):
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                                stdin=subprocess.PIPE,
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                                stdout=subprocess.PIPE,
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                                stderr=subprocess.PIPE)
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+        return cmd
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+
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+    def _run_in_env(self, args, stdin=None, extra_env=None):
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+        cmd = self.spawn_in_env(args, stdin, extra_env)
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         out, err = cmd.communicate(stdin)
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         return cmd.returncode, out.decode('utf-8'), err.decode('utf-8')
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diff --git a/src/tests/intg/test_kcm.py b/src/tests/intg/test_kcm.py
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index 11f80a1803b4ad9b8e8857bf9a8a244d4816f0a2..1ab2a1837687a6c2cf8676124b42538833550c91 100644
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--- a/src/tests/intg/test_kcm.py
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+++ b/src/tests/intg/test_kcm.py
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@@ -445,3 +445,25 @@ def test_kcm_sec_kdestroy_nocache(setup_for_kcm_sec,
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                                   setup_secrets):
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     testenv = setup_for_kcm_sec
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     exercise_subsidiaries(testenv)
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+
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+def test_kcm_sec_parallel_klist(setup_for_kcm_sec,
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+                                setup_secrets):
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+    """
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+    Test that parallel operations from a single UID are handled well.
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+    Regression test for https://pagure.io/SSSD/sssd/issue/3372
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+    """
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+    testenv = setup_for_kcm_sec
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+
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+    testenv.k5kdc.add_principal("alice", "alicepw")
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+    out, _, _ = testenv.k5util.kinit("alice", "alicepw")
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+    assert out == 0
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+
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+
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+    processes = []
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+    for i in range(0,10):
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+        p = testenv.k5util.spawn_in_env(['klist', '-A'])
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+        processes.append(p)
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+
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+    for p in processes:
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+        rc = p.wait()
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+        assert rc == 0
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-- 
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2.9.4
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