test: add a test case to test rclone config exists

tests/units/check-rclone-config-exists/test.sh

@@ -0,0 +1,57 @@
+#!/bin/bash
+
+# During Rclone connection verification, the configuration is considered complete
+# by checking for the presence of `RCLONE_REMOTE_NAME` in the configuration file.
+#
+# This test case ensures the verification method works by triggering the expected error message.
+
+TEST_NAME="check-rclone-config-exits"
+TEST_OUTPUT_DIR="$(pwd)/${OUTPUT_DIR}/${TEST_NAME}"
+TEST_CONFIG_DIR="$(pwd)/${CONFIG_DIR}/${TEST_NAME}"
+
+PASSWORD="231454f1-594c-45e2-8810-3ac917ebcf70"
+
+FAILED_NUM=0
+
+color yellow "Starting test case \"${TEST_NAME}\""
+
+function prepare() {
+    mkdir -p "${TEST_OUTPUT_DIR}" "${TEST_CONFIG_DIR}"
+}
+
+function start() {
+    echo ""
+}
+
+function test() {
+    color blue "Testing..."
+
+    FOUND_MESSAGE_COUNT=$(docker run --rm \
+        --mount "type=bind,source=${TEST_OUTPUT_DIR},target=${REMOTE_DIR}" \
+        --mount "type=bind,source=${TEST_RCLONE_CONFIG_DIR},target=/config" \
+        -e "RCLONE_REMOTE_DIR=${REMOTE_DIR}" \
+        -e "ZIP_PASSWORD=${PASSWORD}" \
+        -e "BACKUP_FILE_SUFFIX=test" \
+        "${DOCKER_IMAGE}" \
+        backup | grep -c "rclone configuration information not found")
+
+    if [[ "${FOUND_MESSAGE_COUNT}" -ne 1 ]]; then
+        ((FAILED_NUM++))
+    fi
+}
+
+function cleanup() {
+    sudo rm -rf "${TEST_OUTPUT_DIR}" "${TEST_CONFIG_DIR}"
+
+    unset TEST_OUTPUT_DIR
+    unset TEST_CONFIG_DIR
+    unset PASSWORD
+    unset FOUND_MESSAGE_COUNT
+}
+
+prepare
+start
+test
+cleanup
+
+test_result "${TEST_NAME}" "${FAILED_NUM}"