message: integration-test: minor fixes
diff: @@ -15,11 +15,12 @@ protected:
  virtual void SetUp()
  {
  + clean();
  _file_url_existing_http =
  "http://s3.eu-central-1.amazonaws.com/404f358a-48b5-4aaf-b5fd-adc84ffb0f31/dronelink_test_file";
  _file_url_existing_https =
  "https://s3.eu-central-1.amazonaws.com/404f358a-48b5-4aaf-b5fd-adc84ffb0f31/dronelink_test_file";
  - _file_url_not_existing = "https://notexisting.file";
  + _file_url_not_existing = "https://notexisting.file/does-really-not-exist";
  _local_path = "testfile.txt";
  }
  @@ -42,8 +43,6 @@ protected:
  TEST_F(CurlTest, Curl_DownloadText_HTTP_Success)
  {
  - clean();
  -
  std::string content;
  CurlWrapper curl_wrapper;
  @@ -55,8 +54,6 @@ TEST_F(CurlTest, Curl_DownloadText_HTTP_Success)
  TEST_F(CurlTest, Curl_DownloadText_HTTPS_Success)
  {
  - clean();
  -
  std::string content;
  CurlWrapper curl_wrapper;
  @@ -68,8 +65,6 @@ TEST_F(CurlTest, Curl_DownloadText_HTTPS_Success)
  TEST_F(CurlTest, Curl_DownloadText_FileNotFound)
  {
  - clean();
  -
  std::string content = "content gets cleared if download fails";
  CurlWrapper curl_wrapper;
  @@ -81,8 +76,6 @@ TEST_F(CurlTest, Curl_DownloadText_FileNotFound)
  TEST_F(CurlTest, Curl_DownloadFile_WithoutProgressFeedback_Success)
  {
  - clean();
  -
  CurlWrapper curl_wrapper;
  bool success = curl_wrapper.download_file_to_path(_file_url_existing_https, _local_path, nullptr);
  @@ -94,8 +87,6 @@ TEST_F(CurlTest, Curl_DownloadFile_WithoutProgressFeedback_Success)
  TEST_F(CurlTest, Curl_DownloadFile_WithoutProgressFeedback_FileNotFound)
  {
  - clean();
  -
  CurlWrapper curl_wrapper;
  bool success = curl_wrapper.download_file_to_path(_file_url_not_existing, _local_path, nullptr);
  @@ -107,8 +98,6 @@ TEST_F(CurlTest, Curl_DownloadFile_WithoutProgressFeedback_FileNotFound)
  TEST_F(CurlTest, Curl_DownloadFile_ProgressFeedback_Success)
  {
  - clean();
  -
  int last_progress;
  auto progress = [&last_progress](int progress) -> int { last_progress = progress; return 0; };
  @@ -124,8 +113,6 @@ TEST_F(CurlTest, Curl_DownloadFile_ProgressFeedback_Success)
  TEST_F(CurlTest, Curl_DownloadFile_ProgressFeedback_FileNotFound)
  {
  - clean();
  -
  int last_progress = -1;
  auto progress = [&last_progress](int progress) -> int { last_progress = progress; return 0; };
  