SYSDB/TESTS: Add tests for the domain's resolution order methods

Introduce a new and small set of tests for these new helper methods that
are going to be used in different parts of the code in the follow-up
patches.

Related:
https://pagure.io/SSSD/sssd/issue/3001

Signed-off-by: Fabiano Fidêncio <fidencio@redhat.com>

Reviewed-by: Sumit Bose <sbose@redhat.com>
Reviewed-by: Pavel Březina <pbrezina@redhat.com>

2 files changed, 206 insertions, 0 deletions

diff --git a/Makefile.am b/Makefile.am
index 8052150be..450785bf4 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -263,6 +263,7 @@ if HAVE_CMOCKA
         test_sysdb_certmap \
         test_sysdb_sudo \
         test_sysdb_utils \
+        test_sysdb_domain_resolution_order \
         test_wbc_calls \
         test_be_ptask \
         test_copy_ccache \
@@ -2875,6 +2876,21 @@ test_sysdb_utils_LDADD = \
     libsss_test_common.la \
     $(NULL)
 
+test_sysdb_domain_resolution_order_SOURCES = \
+    src/tests/cmocka/test_sysdb_domain_resolution_order.c \
+    $(NULL)
+test_sysdb_domain_resolution_order_CFLAGS = \
+    $(AM_CFLAGS) \
+    $(NULL)
+test_sysdb_domain_resolution_order_LDADD = \
+    $(CMOCKA_LIBS) \
+    $(LDB_LIBS) \
+    $(POPT_LIBS) \
+    $(TALLOC_LIBS) \
+    $(SSSD_INTERNAL_LTLIBS) \
+    libsss_test_common.la \
+    $(NULL)
+
 test_wbc_calls_SOURCES = \
     src/tests/cmocka/test_wbc_calls.c \
     src/sss_client/idmap/sss_nss_idmap.c \
diff --git a/src/tests/cmocka/test_sysdb_domain_resolution_order.c b/src/tests/cmocka/test_sysdb_domain_resolution_order.c
new file mode 100644
index 000000000..59a85ce43
--- /dev/null
+++ b/src/tests/cmocka/test_sysdb_domain_resolution_order.c
@@ -0,0 +1,190 @@
+/*
+    SSSD
+
+    sysdb_domain_resolution_order - Tests for domain resolution order calls
+
+    Authors:
+        Fabiano Fidêncio <fidencio@redhat.com>
+
+    Copyright (C) 2017 Red Hat
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <stdarg.h>
+#include <stddef.h>
+#include <setjmp.h>
+#include <cmocka.h>
+#include <popt.h>
+
+#include "tests/cmocka/common_mock.h"
+#include "tests/common.h"
+#include "db/sysdb_domain_resolution_order.h"
+#include "db/sysdb_private.h" /* for sysdb->ldb member */
+
+#define TESTS_PATH "tp_" BASE_FILE_STEM
+#define TEST_CONF_DB "test_sysdb_domain_resolution_order.ldb"
+
+#define TEST_DOM_NAME "test_sysdb_domain_resolution_order"
+
+#define TEST_ID_PROVIDER "ldap"
+
+struct domain_resolution_order_test_ctx {
+    struct sss_test_ctx *tctx;
+};
+
+static int test_sysdb_domain_resolution_order_setup(void **state)
+{
+    struct domain_resolution_order_test_ctx *test_ctx;
+
+    assert_true(leak_check_setup());
+
+    test_ctx = talloc_zero(global_talloc_context,
+                           struct domain_resolution_order_test_ctx);
+    assert_non_null(test_ctx);
+
+    test_dom_suite_setup(TESTS_PATH);
+
+    test_ctx->tctx = create_dom_test_ctx(test_ctx, TESTS_PATH,
+                                         TEST_CONF_DB, TEST_DOM_NAME,
+                                         TEST_ID_PROVIDER, NULL);
+    assert_non_null(test_ctx->tctx);
+
+    *state = test_ctx;
+    return 0;
+}
+
+static int test_sysdb_domain_resolution_order_teardown(void **state)
+{
+    struct domain_resolution_order_test_ctx *test_ctx =
+        talloc_get_type(*state, struct domain_resolution_order_test_ctx);
+
+    test_dom_suite_cleanup(TESTS_PATH, TEST_CONF_DB, TEST_DOM_NAME);
+    talloc_free(test_ctx);
+    assert_true(leak_check_teardown());
+    return 0;
+}
+
+static void test_sysdb_domain_resolution_order_ops(void **state)
+{
+    errno_t ret;
+    struct domain_resolution_order_test_ctx *test_ctx =
+        talloc_get_type(*state, struct domain_resolution_order_test_ctx);
+    const char *domains_in = NULL;
+    const char *domains_out = NULL;
+    struct ldb_dn *dn;
+
+    dn = ldb_dn_new_fmt(test_ctx, test_ctx->tctx->dom->sysdb->ldb,
+                        SYSDB_DOM_BASE, test_ctx->tctx->dom->name);
+
+    /* Adding domainResolutionOrder for the first time */
+    domains_in = "foo:bar:foobar";
+    ret = sysdb_update_domain_resolution_order(test_ctx->tctx->dom->sysdb,
+                                               dn, domains_in);
+    assert_int_equal(ret, EOK);
+
+    ret = sysdb_get_domain_resolution_order(test_ctx,
+                                            test_ctx->tctx->dom->sysdb, dn,
+                                            &domains_out);
+    assert_int_equal(ret, EOK);
+    assert_true(strcmp(domains_in, domains_out) == 0);
+
+    /* Setting the domainResolutionOrder to ":" ...
+     *
+     * It means, the domainResolutionOrder is set, but if there's another
+     * domainResolutionOrder with lower precedence those must be ignored.
+     */
+    domains_in = ":";
+    ret = sysdb_update_domain_resolution_order(test_ctx->tctx->dom->sysdb,
+                                               dn, domains_in);
+    assert_int_equal(ret, EOK);
+
+    ret = sysdb_get_domain_resolution_order(test_ctx,
+                                            test_ctx->tctx->dom->sysdb, dn,
+                                            &domains_out);
+    assert_int_equal(ret, EOK);
+    assert_true(strcmp(domains_in, domains_out) == 0);
+
+    /* Changing the domainResolutionOrder */
+    domains_in = "bar:foobar:foo";
+    ret = sysdb_update_domain_resolution_order(test_ctx->tctx->dom->sysdb,
+                                               dn, domains_in);
+    assert_int_equal(ret, EOK);
+
+    ret = sysdb_get_domain_resolution_order(test_ctx,
+                                            test_ctx->tctx->dom->sysdb, dn,
+                                            &domains_out);
+    assert_int_equal(ret, EOK);
+    assert_true(strcmp(domains_out, domains_out) == 0);
+
+    /* Removing the domainResolutionOrder attribute */
+    domains_in = NULL;
+    ret = sysdb_update_domain_resolution_order(test_ctx->tctx->dom->sysdb,
+                                               dn, domains_in);
+    assert_int_equal(ret, EOK);
+
+    ret = sysdb_get_domain_resolution_order(test_ctx,
+                                            test_ctx->tctx->dom->sysdb, dn,
+                                            &domains_out);
+    assert_int_equal(ret, ENOENT);
+    assert_true(domains_out == NULL);
+}
+
+int main(int argc, const char *argv[])
+{
+    int rv;
+    int no_cleanup = 0;
+    poptContext pc;
+    int opt;
+    struct poptOption long_options[] = {
+        POPT_AUTOHELP
+        SSSD_DEBUG_OPTS
+        {"no-cleanup", 'n', POPT_ARG_NONE, &no_cleanup, 0,
+         _("Do not delete the test database after a test run"), NULL },
+        POPT_TABLEEND
+    };
+
+    const struct CMUnitTest tests[] = {
+        cmocka_unit_test_setup_teardown(test_sysdb_domain_resolution_order_ops,
+                                        test_sysdb_domain_resolution_order_setup,
+                                        test_sysdb_domain_resolution_order_teardown),
+    };
+
+    /* Set debug level to invalid value so we can deside if -d 0 was used. */
+    debug_level = SSSDBG_INVALID;
+
+    pc = poptGetContext(argv[0], argc, argv, long_options, 0);
+    while((opt = poptGetNextOpt(pc)) != -1) {
+        switch(opt) {
+        default:
+            fprintf(stderr, "\nInvalid option %s: %s\n\n",
+                    poptBadOption(pc, 0), poptStrerror(opt));
+            poptPrintUsage(pc, stderr, 0);
+            return 1;
+        }
+    }
+    poptFreeContext(pc);
+
+    DEBUG_CLI_INIT(debug_level);
+
+    tests_set_cwd();
+    test_dom_suite_cleanup(TESTS_PATH, TEST_CONF_DB, LOCAL_SYSDB_FILE);
+    test_dom_suite_setup(TESTS_PATH);
+    rv = cmocka_run_group_tests(tests, NULL, NULL);
+
+    if (rv == 0 && no_cleanup == 0) {
+        test_dom_suite_cleanup(TESTS_PATH, TEST_CONF_DB, LOCAL_SYSDB_FILE);
+    }
+    return rv;
+}