1 files changed, 99 insertions, 0 deletions
diff --git a/src/test/libcephfs/monconfig.cc b/src/test/libcephfs/monconfig.cc
new file mode 100644
index 000000000..c962c4f3a
--- /dev/null
+++ b/src/test/libcephfs/monconfig.cc
@@ -0,0 +1,99 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+/*
+ * Ceph - scalable distributed file system
+ *
+ * Copyright (C) 2020 Red Hat
+ *
+ * This is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1, as published by the Free Software
+ * Foundation.  See file COPYING.
+ *
+ */
+
+#include "gtest/gtest.h"
+#include "include/cephfs/libcephfs.h"
+#include "common/ceph_context.h"
+#include <errno.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+class MonConfig : public ::testing::Test
+{
+  protected:
+    struct ceph_mount_info *ca;
+
+    void SetUp() override {
+      ASSERT_EQ(0, ceph_create(&ca, NULL));
+      ASSERT_EQ(0, ceph_conf_read_file(ca, NULL));
+      ASSERT_EQ(0, ceph_conf_parse_env(ca, NULL));
+    }
+
+    void TearDown() override {
+      ceph_shutdown(ca);
+    }
+
+    // Helper to remove/unset all possible mon information from ConfigProxy
+    void clear_mon_config(CephContext *cct) {
+      auto& conf = cct->_conf;
+      // Clear safe_to_start_threads, allowing updates to config values
+      conf._clear_safe_to_start_threads();
+      ASSERT_EQ(0, conf.set_val("monmap", "", nullptr));
+      ASSERT_EQ(0, conf.set_val("mon_host", "", nullptr));
+      ASSERT_EQ(0, conf.set_val("mon_dns_srv_name", "", nullptr));
+      conf.set_safe_to_start_threads();
+    }
+
+    // Helper to test basic operation on a mount
+    void use_mount(struct ceph_mount_info *mnt, string name_prefix) {
+      char name[20];
+      snprintf(name, sizeof(name), "%s.%d", name_prefix.c_str(), getpid());
+      int fd = ceph_open(mnt, name, O_CREAT|O_RDWR, 0644);
+      ASSERT_LE(0, fd);
+
+      ceph_close(mnt, fd);
+    }
+};
+
+TEST_F(MonConfig, MonAddrsMissing) {
+  CephContext *cct;
+
+  // Test mount failure when there is no known mon config source
+  cct = ceph_get_mount_context(ca);
+  ASSERT_NE(nullptr, cct);
+  clear_mon_config(cct);
+
+  ASSERT_EQ(-ENOENT, ceph_mount(ca, NULL));
+}
+
+TEST_F(MonConfig, MonAddrsInConfigProxy) {
+  // Test a successful mount with default mon config source in ConfigProxy
+  ASSERT_EQ(0, ceph_mount(ca, NULL));
+
+  use_mount(ca, "foo");
+}
+
+TEST_F(MonConfig, MonAddrsInCct) {
+  struct ceph_mount_info *cb;
+  CephContext *cct;
+
+  // Perform mount to bootstrap mon addrs in CephContext
+  ASSERT_EQ(0, ceph_mount(ca, NULL));
+
+  // Reuse bootstrapped CephContext, clearing ConfigProxy mon addr sources
+  cct = ceph_get_mount_context(ca);
+  ASSERT_NE(nullptr, cct);
+  clear_mon_config(cct);
+  ASSERT_EQ(0, ceph_create_with_context(&cb, cct));
+
+  // Test a successful mount with only mon values in CephContext
+  ASSERT_EQ(0, ceph_mount(cb, NULL));
+
+  use_mount(ca, "bar");
+  use_mount(cb, "bar");
+
+  ceph_shutdown(cb);
+}