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From 1a73dbe9747aec2818fabd179e0fb46695d66433 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Michal=20=C5=BDidek?= <mzidek@redhat.com>
Date: Mon, 13 Nov 2017 16:15:21 +0100
Subject: [PATCH] TESTS: Order list of entries in some lists
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Some tests started to fail because we depended on specific
order of users in groups or messages in ldb results to be
returned and that order changed.

This patch adds a simple helper functions into these tests
that order the entries before comparison with expected results.
more deterministic.

Resolves:
https://pagure.io/SSSD/sssd/issue/3563

Reviewed-by: Lukáš Slebodník <lslebodn@redhat.com>
(cherry picked from commit caae0e53e6091806634943699f4398b6a20273b4)

DOWNSTREAM:
Resolves: rhbz#1596292 - home dir disappear in sssd cache on the IPA master for AD users [rhel-7.5.z]
---
 src/tests/cmocka/test_nss_srv.c     | 22 +++++++++++++++++++
 src/tests/cmocka/test_sysdb_views.c | 42 ++++++++++++++++++++++++++++++++-----
 2 files changed, 59 insertions(+), 5 deletions(-)

diff --git a/src/tests/cmocka/test_nss_srv.c b/src/tests/cmocka/test_nss_srv.c
index 6aa726153183b5a871a75d398727ea7132358ca6..21bd80fb7f6562f6a31452bac6a26c109fef4cb1 100644
--- a/src/tests/cmocka/test_nss_srv.c
+++ b/src/tests/cmocka/test_nss_srv.c
@@ -585,6 +585,25 @@ static errno_t delete_group(struct nss_test_ctx *ctx,
     return ret;
 }
 
+static int cmp_func(const void *a, const void *b)
+{
+    char *str1 = *(char **)discard_const(a);
+    char *str2 = *(char **)discard_const(b);
+
+    return strcmp(str1, str2);
+}
+
+static void order_string_array(char **_list, int size)
+{
+    if (size < 2 || _list == NULL || *_list == NULL) {
+        /* Nothing to do */
+        return;
+    }
+
+    qsort(_list, size, sizeof(char *), cmp_func);
+    return;
+}
+
 static void assert_groups_equal(struct group *expected,
                                 struct group *gr, const int nmem)
 {
@@ -594,6 +613,9 @@ static void assert_groups_equal(struct group *expected,
     assert_string_equal(gr->gr_name, expected->gr_name);
     assert_string_equal(gr->gr_passwd, expected->gr_passwd);
 
+    order_string_array(gr->gr_mem, nmem);
+    order_string_array(expected->gr_mem, nmem);
+
     for (i = 0; i < nmem; i++) {
         assert_string_equal(gr->gr_mem[i], expected->gr_mem[i]);
     }
diff --git a/src/tests/cmocka/test_sysdb_views.c b/src/tests/cmocka/test_sysdb_views.c
index 0378254b4440b29c3182faf2adde8c3db8a4ce97..dd3eb50f9310ff925734dcf51a669d08a638aefd 100644
--- a/src/tests/cmocka/test_sysdb_views.c
+++ b/src/tests/cmocka/test_sysdb_views.c
@@ -22,6 +22,7 @@
     along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
+#include <stdlib.h>
 #include <stdarg.h>
 #include <stddef.h>
 #include <setjmp.h>
@@ -612,6 +613,31 @@ static int test_enum_users_setup(void **state)
     return 0;
 }
 
+static int cmp_func(const void *a, const void *b)
+{
+    const char *str1;
+    const char *str2;
+    struct ldb_message *msg1 = *(struct ldb_message **)discard_const(a);
+    struct ldb_message *msg2 = *(struct ldb_message **)discard_const(b);
+
+    str1 = ldb_msg_find_attr_as_string(msg1, SYSDB_NAME, NULL);
+    str2 = ldb_msg_find_attr_as_string(msg2, SYSDB_NAME, NULL);
+
+    return strcmp(str1, str2);
+}
+
+/* Make the order of ldb results deterministic */
+static void order_ldb_res_msgs(struct ldb_result *res)
+{
+    if (res == NULL || res->count < 2) {
+        /* Nothing to do */
+        return;
+    }
+
+    qsort(res->msgs, res->count, sizeof(struct ldb_message *), cmp_func);
+    return;
+}
+
 static void assert_user_attrs(struct ldb_message *msg,
                               struct sss_domain_info *dom,
                               const char *shortname,
@@ -660,8 +686,9 @@ static void check_enumpwent(int ret, struct sss_domain_info *dom,
     assert_int_equal(ret, EOK);
     assert_int_equal(res->count, N_ELEMENTS(users)-1);
 
-    assert_user_attrs(res->msgs[0], dom, "barney", views);
-    assert_user_attrs(res->msgs[1], dom, "alice", views);
+    order_ldb_res_msgs(res);
+    assert_user_attrs(res->msgs[0], dom, "alice", views);
+    assert_user_attrs(res->msgs[1], dom, "barney", views);
     assert_user_attrs(res->msgs[2], dom, "bob", views);
 }
 
@@ -703,6 +730,7 @@ static void test_sysdb_enumpwent_filter(void **state)
     ret = sysdb_enumpwent_filter(test_ctx, test_ctx->domain, "b*", 0, &res);
     assert_int_equal(ret, EOK);
     assert_int_equal(res->count, 2);
+    order_ldb_res_msgs(res);
     assert_user_attrs(res->msgs[0], test_ctx->domain, "barney", false);
     assert_user_attrs(res->msgs[1], test_ctx->domain, "bob", false);
 
@@ -749,6 +777,7 @@ static void test_sysdb_enumpwent_filter_views(void **state)
                                             "b*", NULL, &res);
     assert_int_equal(ret, EOK);
     assert_int_equal(res->count, 2);
+    order_ldb_res_msgs(res);
     assert_user_attrs(res->msgs[0], test_ctx->domain, "barney", true);
     assert_user_attrs(res->msgs[1], test_ctx->domain, "bob", true);
 
@@ -896,10 +925,11 @@ static void check_enumgrent(int ret, struct sss_domain_info *dom,
 {
     assert_int_equal(ret, EOK);
     assert_int_equal(res->count, N_ELEMENTS(groups)-1);
-    assert_group_attrs(res->msgs[0], dom, "three",
-                       views ? TEST_GID_OVERRIDE_BASE + 2 : 0);
-    assert_group_attrs(res->msgs[1], dom, "one",
+    order_ldb_res_msgs(res);
+    assert_group_attrs(res->msgs[0], dom, "one",
                        views ? TEST_GID_OVERRIDE_BASE : 0);
+    assert_group_attrs(res->msgs[1], dom, "three",
+                       views ? TEST_GID_OVERRIDE_BASE + 2 : 0);
     assert_group_attrs(res->msgs[2], dom, "two",
                        views ? TEST_GID_OVERRIDE_BASE + 1 : 0);
 }
@@ -942,6 +972,7 @@ static void test_sysdb_enumgrent_filter(void **state)
     ret = sysdb_enumgrent_filter(test_ctx, test_ctx->domain, "t*", 0, &res);
     assert_int_equal(ret, EOK);
     assert_int_equal(res->count, 2);
+    order_ldb_res_msgs(res);
     assert_group_attrs(res->msgs[0], test_ctx->domain, "three", 0);
     assert_group_attrs(res->msgs[1], test_ctx->domain, "two", 0);
 
@@ -988,6 +1019,7 @@ static void test_sysdb_enumgrent_filter_views(void **state)
                                             "t*", NULL, &res);
     assert_int_equal(ret, EOK);
     assert_int_equal(res->count, 2);
+    order_ldb_res_msgs(res);
     assert_group_attrs(res->msgs[0], test_ctx->domain,
                        "three", TEST_GID_OVERRIDE_BASE + 2);
     assert_group_attrs(res->msgs[1], test_ctx->domain, "two",
-- 
2.14.4