diff --git a/.docker/Dockerfile b/.docker/Dockerfile
index 35e22aecd002f99ab09ed69060506cea32d143db..7a0ad4ef03c2985cf1679f394b35f6db801e6a5c 100644
--- a/.docker/Dockerfile
+++ b/.docker/Dockerfile
@@ -1,4 +1,11 @@
 ARG CI_REGISTRY_IMAGE
 FROM $CI_REGISTRY_IMAGE
 
-# TODO install caosdb-cpplib
+WORKDIR /libcaosdb/
+RUN mkdir build
+WORKDIR /libcaosdb/build
+RUN cmake ..
+RUN cmake --build .
+RUN cmake --install .
+
+CMD /bin/bash
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 403877b8d9e8bd109a0eba639c31b8ac2139e308..894e9f399e7b5fe412ca51e9f5bc4bba0ee2edd5 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -27,4 +27,7 @@ project(libcaosdb_inttests
 set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
+
+set(CMAKE_MODULE_PATH "${PROJECT_SOURCE_DIR}/cmake" ${CMAKE_MODULE_PATH})
 enable_testing()
+add_subdirectory(test)
diff --git a/cmake/FetchGTest.cmake b/cmake/FetchGTest.cmake
new file mode 100644
index 0000000000000000000000000000000000000000..6e075cff55d6c7f662d173ec55b4fd7bac7fa39b
--- /dev/null
+++ b/cmake/FetchGTest.cmake
@@ -0,0 +1,41 @@
+# Copyright 2008, Google Inc.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+#   * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#   * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+#   * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+include(FetchContent)
+
+FetchContent_Declare(
+  googletest
+  GIT_REPOSITORY https://github.com/google/googletest.git
+  GIT_TAG        release-1.10.0
+  GIT_SHALLOW    1
+)
+
+# For Windows: Prevent overriding the parent project's compiler/linker settings
+set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
+FetchContent_MakeAvailable(googletest)
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
new file mode 100644
index 0000000000000000000000000000000000000000..f2921f40e46a2470efc658aceb39caf6548ec0c4
--- /dev/null
+++ b/test/CMakeLists.txt
@@ -0,0 +1,43 @@
+#
+# This file is a part of the CaosDB Project.
+#
+# Copyright (C) 2021 Timm Fitschen <t.fitschen@indiscale.com>
+# Copyright (C) 2021 IndiScale GmbH <info@indiscale.com>
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero 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 Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
+#
+
+# append all the test cases here (file name without the ".cpp" suffix)
+set(test_cases
+    test_connection
+    )
+
+find_package(caosdb PATHS /home/tf/libcaosdb/lib/libcaosdb-0.0.1/ REQUIRED)
+
+include(FetchGTest)
+# add special cmake functions for gtest
+include(GoogleTest)
+
+# loop over all test cases and add them to the test runner
+list(LENGTH test_cases len_test_cases)
+math(EXPR len_test_cases "${len_test_cases} - 1")
+foreach (i RANGE "${len_test_cases}")
+    list(GET test_cases ${i} test_case_name)
+    add_executable(${test_case_name} ${test_case_name}.cpp)
+    target_link_libraries(${test_case_name} PRIVATE gtest_main caosdb::caosdb)
+    set_target_properties(${test_case_name} PROPERTIES CXX_CLANG_TIDY "")
+    gtest_discover_tests(${test_case_name}
+        PROPERTIES
+            LABELS "caosdb-cpplib-int-tests")
+endforeach ()
diff --git a/test/test_connection.cpp b/test/test_connection.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..ba64060f9b564ffff7aa3beec57a3bb7047d87c4
--- /dev/null
+++ b/test/test_connection.cpp
@@ -0,0 +1,34 @@
+/*
+ *
+ * This file is a part of the CaosDB Project.
+ *
+ * Copyright (C) 2021 Timm Fitschen <t.fitschen@indiscale.com>
+ * Copyright (C) 2021 IndiScale GmbH <info@indiscale.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero 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 Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "connection.h"
+#include <gtest/gtest-message.h>
+#include <gtest/gtest-test-part.h>
+#include <memory>
+#include "gtest/gtest_pred_impl.h"
+
+TEST(test_connection, localhost_8080) {
+  caosdb::CaosDBConnectionConfig config("localhost", 8000);
+
+  EXPECT_EQ("localhost", config.getHost());
+  EXPECT_EQ(8000, config.getPort());
+}