FileInputStreamWrapper { public String getFileName() { return fileName; } FileInputStreamWrapper(String fileName, InputStream inputStream); String getFileName(); void setFileName(String fileName); InputStream getInputStream(); void setInputStream(InputStream inputStream);  }
@Test public void testGetFileName_1() throws Exception { FileInputStreamWrapper fixture = new FileInputStreamWrapper("", new PipedInputStream()); String result = fixture.getFileName(); assertNotNull(result); }