10 files changed, 132 insertions, 4 deletions
diff --git a/test/docker-compose.yml b/test/docker-compose.yml
new file mode 100644
index 0000000..76546c4
--- /dev/null
+++ b/test/docker-compose.yml
@@ -0,0 +1,13 @@
+version: '3'
+services:
+  test:
+    build:
+      context: docker/
+      args:
+        DISTRO: "${DISTRO:-xenial}"
+    volumes:
+      - ../:/src
+    command:
+      - sh
+      - -c
+      - /src/test/unit/test.sh && /src/test/integration/test.sh
diff --git a/test/docker/Dockerfile b/test/docker/Dockerfile
new file mode 100644
index 0000000..5d4d016
--- /dev/null
+++ b/test/docker/Dockerfile
@@ -0,0 +1,9 @@
+ARG DISTRO=xenial
+
+FROM ubuntu:$DISTRO
+
+RUN apt-get update && \
+    DEBIAN_FRONTEND=noninteractive \
+        apt-get install -y --no-install-recommends ca-certificates git
+
+RUN git config --global --add safe.directory /src
diff --git a/test/integration/test.sh b/test/integration/test.sh
new file mode 100755
index 0000000..f4b1028
--- /dev/null
+++ b/test/integration/test.sh
@@ -0,0 +1,91 @@
+#!/usr/bin/env bash
+
+set -o errexit -o nounset -o pipefail
+shopt -s inherit_errexit 2> /dev/null || true
+shopt -s lastpipe
+
+script_dir="$( dirname -- "${BASH_SOURCE[0]}" )"
+script_dir="$( cd -- "$script_dir" && pwd )"
+readonly script_dir
+script_name="$( basename -- "${BASH_SOURCE[0]}" )"
+readonly script_name
+
+root_dir="$( git -C "$script_dir" rev-parse --show-toplevel )"
+readonly root_dir
+
+src_name='linux-home'
+readonly src_name
+src_url="https://github.com/egor-tensin/$src_name.git"
+readonly src_url
+
+test_root_dir=
+test_src_dir=
+
+new_test() {
+    local test_name=
+    [ "${#FUNCNAME[@]}" -gt 1 ] && test_name="${FUNCNAME[1]}"
+    [ "$#" -gt 0 ] && test_name="$1"
+
+    echo
+    echo ======================================================================
+    echo "New test: $test_name"
+
+    test_root_dir="$( mktemp -d )"
+    # mktemp returns /var/..., which is actually in /private/var/... on macOS.
+    test_root_dir="$( readlink -e -- "$test_root_dir" )"
+    test_src_dir="$test_root_dir/$src_name"
+
+    echo "Root directory: $test_root_dir"
+    echo "Shared directory: $test_src_dir"
+    echo ======================================================================
+
+    git clone -q -- "$src_url" "$test_src_dir"
+    cd -- "$test_src_dir"
+}
+
+call_bin_script() {
+    echo
+    echo -n 'Executing script:'
+
+    printf -- ' %q' "$@" --shared-dir "$test_src_dir" --database "$test_root_dir/links.bin"
+    printf -- '\n'
+
+    echo
+    "$@" --shared-dir "$test_src_dir" --database "$test_root_dir/links.bin"
+}
+
+call_update() {
+    call_bin_script "$root_dir/links-update" "$@"
+}
+
+call_remove() {
+    call_bin_script "$root_dir/links-remove"
+}
+
+call_chmod() {
+    call_bin_script "$root_dir/links-chmod" "$@"
+}
+
+test_my_dotfiles_work() {
+    new_test
+    call_update
+    # Again:
+    call_update
+}
+
+show_env() {
+    echo
+    echo ======================================================================
+    echo Environment
+    echo ======================================================================
+
+    bash --version
+}
+
+main() {
+    show_env
+
+    test_my_dotfiles_work
+}
+
+main
diff --git a/test/dest/1.txt b/test/unit/dest/1.txt
index 3a2e3f4..3a2e3f4 100644
--- a/test/dest/1.txt
+++ b/test/unit/dest/1.txt
diff --git a/test/dest/bar/3.txt b/test/unit/dest/bar/3.txt
index a83d1d5..a83d1d5 100644
--- a/test/dest/bar/3.txt
+++ b/test/unit/dest/bar/3.txt
diff --git a/test/src/%DEST%/1.txt b/test/unit/src/%DEST%/1.txt
index d00491f..d00491f 100644
--- a/test/src/%DEST%/1.txt
+++ b/test/unit/src/%DEST%/1.txt
diff --git a/test/src/%DEST%/bar/3.txt b/test/unit/src/%DEST%/bar/3.txt
index 00750ed..00750ed 100644
--- a/test/src/%DEST%/bar/3.txt
+++ b/test/unit/src/%DEST%/bar/3.txt
diff --git a/test/src/%DEST%/bar/baz/4.txt b/test/unit/src/%DEST%/bar/baz/4.txt
index b8626c4..b8626c4 100644
--- a/test/src/%DEST%/bar/baz/4.txt
+++ b/test/unit/src/%DEST%/bar/baz/4.txt
diff --git a/test/src/%DEST%/foo/2.txt b/test/unit/src/%DEST%/foo/2.txt
index 0cfbf08..0cfbf08 100644
--- a/test/src/%DEST%/foo/2.txt
+++ b/test/unit/src/%DEST%/foo/2.txt
diff --git a/test/test.sh b/test/unit/test.sh
index 05c5d65..f693aa1 100755
--- a/test/test.sh
+++ b/test/unit/test.sh
@@ -1,7 +1,8 @@
 #!/usr/bin/env bash
 
 set -o errexit -o nounset -o pipefail
-shopt -s inherit_errexit lastpipe
+shopt -s inherit_errexit 2> /dev/null || true
+shopt -s lastpipe
 
 script_dir="$( dirname -- "${BASH_SOURCE[0]}" )"
 script_dir="$( cd -- "$script_dir" && pwd )"
@@ -9,6 +10,9 @@ readonly script_dir
 script_name="$( basename -- "${BASH_SOURCE[0]}" )"
 readonly script_name
 
+root_dir="$( git -C "$script_dir" rev-parse --show-toplevel )"
+readonly root_dir
+
 readonly src_dir_name='src'
 readonly dest_dir_name='dest'
 readonly alt_dest_dir_name='alt_dest'
@@ -62,15 +66,15 @@ call_bin_script() {
 }
 
 call_update() {
-    call_bin_script "$script_dir/../links-update" "$@"
+    call_bin_script "$root_dir/links-update" "$@"
 }
 
 call_remove() {
-    call_bin_script "$script_dir/../links-remove"
+    call_bin_script "$root_dir/links-remove"
 }
 
 call_chmod() {
-    call_bin_script "$script_dir/../links-chmod" "$@"
+    call_bin_script "$root_dir/links-chmod" "$@"
 }
 
 verify_output() {
@@ -413,7 +417,18 @@ $test_dest_dir/foo/2.txt->$test_src_dir/%DEST%/foo/2.txt"
     verify_mode "$expected_mode" "$test_src_dir/%DEST%/1.txt"
 }
 
+show_env() {
+    echo
+    echo ======================================================================
+    echo Environment
+    echo ======================================================================
+
+    bash --version
+}
+
 main() {
+    show_env
+
     test_update_works
     test_remove_works
     test_remove_does_not_overwrite_files