// Verify stream was not consumed
        assertEquals(testData.length, in.available());
    }

    /**
     * Test extraction with empty string filename.
     */
    public void test_getText_withEmptyFilename() {
        final InputStream in = new ByteArrayInputStream(new byte[0]);
        final Map<String, String> params = new HashMap<>();
        params.put(ExtractData.RESOURCE_NAME_KEY, "");