diff --git a/tests/1_one_year/run.sh b/tests/1_one_year/run.sh
new file mode 100755
index 0000000..7cec813
--- /dev/null
+++ b/tests/1_one_year/run.sh
@@ -0,0 +1,55 @@
+#!/bin/bash
+set -x
+
+# this test will take hourly, daily and monthly snapshots
+# for the whole year of 2017 in the timezone Europe/Vienna
+# sanoid is run hourly and no snapshots are pruned
+
+. ../common/lib.sh
+
+POOL_NAME="sanoid-test-1"
+POOL_TARGET=""  # root
+RESULT="/tmp/sanoid_test_result"
+RESULT_CHECKSUM="aa15e5595b0ed959313289ecb70323dad9903328ac46e881da5c4b0f871dd7cf"
+
+# UTC timestamp of start and end
+START="1483225200"
+END="1514761199"
+
+# prepare
+setup
+checkEnvironment
+disableTimeSync
+
+# set timezone
+ln -sf /usr/share/zoneinfo/Europe/Vienna /etc/localtime
+
+timestamp=$START
+
+mkdir -p "${POOL_TARGET}"
+truncate -s 5120M "${POOL_TARGET}"/zpool.img
+
+zpool create -f "${POOL_NAME}" "${POOL_TARGET}"/zpool.img
+
+function cleanUp {
+  zpool export "${POOL_NAME}"
+}
+
+# export pool in any case
+trap cleanUp EXIT
+
+while [ $timestamp -le $END ]; do
+    date --utc --set @$timestamp; date; "${SANOID}" --cron --verbose
+    timestamp=$((timestamp+3600))
+done
+
+saveSnapshotList "${POOL_NAME}" "${RESULT}"
+
+# hourly daily monthly
+verifySnapshotList "${RESULT}" 8759 366 12 "${RESULT_CHECKSUM}"
+
+# hourly count should be 8760 but one hour get's lost because of DST
+
+# daily count should be 365 but one additional daily is taken
+# because the DST change leads to a day with 25 hours
+# which will trigger an additional daily snapshot
diff --git a/tests/1_one_year/sanoid.conf b/tests/1_one_year/sanoid.conf
new file mode 100644
index 0000000..f5692f0
--- /dev/null
+++ b/tests/1_one_year/sanoid.conf
@@ -0,0 +1,10 @@
+[sanoid-test-1]
+	use_template = production
+
+[template_production]
+	hourly = 36
+	daily = 30
+	monthly = 3
+	yearly = 0
+	autosnap = yes
+	autoprune = no
diff --git a/tests/common/lib.sh b/tests/common/lib.sh
new file mode 100644
index 0000000..2c15e9b
--- /dev/null
+++ b/tests/common/lib.sh
@@ -0,0 +1,106 @@
+#!/bin/bash
+
+function setup {
+    export LANG=C
+    export LANGUAGE=C
+    export LC_ALL=C
+
+    export SANOID="../../sanoid"
+
+    # make sure that there is no cache file
+    rm -f /var/cache/sanoidsnapshots.txt
+
+    # install needed sanoid configuration files
+    [ -f sanoid.conf ] && cp sanoid.conf /etc/sanoid/sanoid.conf
+    cp ../../sanoid.defaults.conf /etc/sanoid/sanoid.defaults.conf
+}
+
+function checkEnvironment {
+    ASK=1
+
+    which systemd-detect-virt > /dev/null
+    if [ $? -eq 0 ]; then
+        systemd-detect-virt --vm > /dev/null
+        if [ $? -eq 0 ]; then
+            # we are in a vm
+            ASK=0
+        fi
+    fi
+
+    if [ $ASK -eq 1 ]; then
+        set +x
+        echo "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"
+        echo "you should be running this test in a"
+        echo "dedicated vm, as it will mess with your system!"
+        echo "Are you sure you wan't to continue? (y)"
+        echo "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"
+        set -x
+
+        read -n 1 c
+        if [ "$c" != "y" ]; then
+            exit 1
+        fi
+    fi
+}
+
+function disableTimeSync {
+    # disable ntp sync
+    which timedatectl > /dev/null
+    if [ $? -eq 0 ]; then
+        timedatectl set-ntp 0
+    fi
+}
+
+function saveSnapshotList {
+    POOL_NAME="$1"
+    RESULT="$2"
+
+    zfs list -t snapshot -o name -Hr "${POOL_NAME}" | sort > "${RESULT}"
+
+    # clear the seconds for comparing
+    sed -i 's/\(autosnap_[0-9][0-9][0-9][0-9]-[0-9][0-9]-[0-9][0-9]_[0-9][0-9]:[0-9][0-9]:\)[0-9][0-9]_/\100_/g' "${RESULT}"
+}
+
+function verifySnapshotList {
+    RESULT="$1"
+    HOURLY_COUNT=$2
+    DAILY_COUNT=$3
+    MONTHLY_COUNT=$4
+    CHECKSUM="$5"
+
+    failed=0
+    message=""
+
+    hourly_count=$(grep -c "autosnap_.*_hourly" < "${RESULT}")
+    daily_count=$(grep -c "autosnap_.*_daily" < "${RESULT}")
+    monthly_count=$(grep -c "autosnap_.*_monthly" < "${RESULT}")
+
+    if [ "${hourly_count}" -ne "${HOURLY_COUNT}" ]; then
+        failed=1
+        message="${message}hourly snapshot count is wrong: ${hourly_count}\n"
+    fi
+
+    if [ "${daily_count}" -ne "${DAILY_COUNT}" ]; then
+        failed=1
+        message="${message}daily snapshot count is wrong: ${daily_count}\n"
+    fi
+
+    if [ "${monthly_count}" -ne "${MONTHLY_COUNT}" ]; then
+        failed=1
+        message="${message}monthly snapshot count is wrong: ${monthly_count}\n"
+    fi
+
+    checksum=$(sha256sum "${RESULT}" | cut -d' ' -f1)
+    if [ "${checksum}" != "${CHECKSUM}" ]; then
+        failed=1
+        message="${message}result checksum mismatch\n"
+    fi
+
+    if [ "${failed}" -eq 0 ]; then
+        exit 0
+    fi
+
+    echo "TEST FAILED:" >&2
+    echo -n -e "${message}" >&2
+
+}
diff --git a/tests/run-tests.sh b/tests/run-tests.sh
new file mode 100755
index 0000000..a8469e9
--- /dev/null
+++ b/tests/run-tests.sh
@@ -0,0 +1,27 @@
+#!/bin/bash
+
+# run's all the available tests
+
+for test in */; do
+    if [ ! -x "${test}/run.sh" ]; then
+        continue
+    fi
+
+    testName="${test%/}"
+
+    LOGFILE=/tmp/sanoid_test_run_"${testName}".log
+
+    pushd . > /dev/null
+
+    echo -n "Running test ${testName} ... "
+    cd "${test}"
+    echo | bash run.sh > "${LOGFILE}" 2>&1
+
+    if [ $? -eq 0 ]; then
+        echo "[PASS]"
+    else
+        echo "[FAILED] (see ${LOGFILE})"
+    fi
+
+    popd > /dev/null
+done