FileInputStreamWrapper { public InputStream getInputStream() { return inputStream; } FileInputStreamWrapper(String fileName, InputStream inputStream); String getFileName(); void setFileName(String fileName); InputStream getInputStream(); void setInputStream(InputStream inputStream);  }
@Test public void testGetInputStream_1() throws Exception { FileInputStreamWrapper fixture = new FileInputStreamWrapper("", new PipedInputStream()); InputStream result = fixture.getInputStream(); assertNotNull(result); }