long tmpFilesAfter = countTmpFiles();
        assertEquals(tmpFilesBefore, tmpFilesAfter);
    }

    // --- Connect exception handling test ---

    @Test
    public void test_ConnectException_WrappedInCurlException() throws Exception {
        // ## Arrange ##
        CurlRequest req = new OpenOverrideCurlRequest(Curl.Method.GET, "http://dummy", u -> {
            throw new IOException("Simulated connection failure");