import org.apache.hadoop.hbase.rest.filter.GZIPResponseWrapper; //导入依赖的package包/类
@Test
public void testResetBuffer() throws IOException {
  HttpServletResponse response = mock(HttpServletResponse.class);
  when(response.isCommitted()).thenReturn(false);
  ServletOutputStream out = mock(ServletOutputStream.class);
  when(response.getOutputStream()).thenReturn(out);
  GZIPResponseWrapper test = new GZIPResponseWrapper(response);

  ServletOutputStream servletOutput = test.getOutputStream();
  assertEquals(org.apache.hadoop.hbase.rest.filter.GZIPResponseStream.class,
      servletOutput.getClass());
  test.resetBuffer();
  verify(response).setHeader("Content-Encoding", null);

  when(response.isCommitted()).thenReturn(true);
  servletOutput = test.getOutputStream();
  assertEquals(out.getClass(), servletOutput.getClass());
  assertNotNull(test.getWriter());

}
 

import org.apache.hadoop.hbase.rest.filter.GZIPResponseWrapper; //导入依赖的package包/类
@Test
public void testReset() throws IOException {
  HttpServletResponse response = mock(HttpServletResponse.class);
  when(response.isCommitted()).thenReturn(false);
  ServletOutputStream out = mock(ServletOutputStream.class);
  when(response.getOutputStream()).thenReturn(out);
  GZIPResponseWrapper test = new GZIPResponseWrapper(response);

  ServletOutputStream servletOutput = test.getOutputStream();
  assertEquals(org.apache.hadoop.hbase.rest.filter.GZIPResponseStream.class,
      servletOutput.getClass());
  test.reset();
  verify(response).setHeader("Content-Encoding", null);

  when(response.isCommitted()).thenReturn(true);
  servletOutput = test.getOutputStream();
  assertEquals(out.getClass(), servletOutput.getClass());
}
 

import org.apache.hadoop.hbase.rest.filter.GZIPResponseWrapper; //导入依赖的package包/类
/**
 * headers function should be called in response except header "content-length"
 * 
 * @throws IOException
 */
@Test
public void testHeader() throws IOException {

  HttpServletResponse response = mock(HttpServletResponse.class);

  GZIPResponseWrapper test = new GZIPResponseWrapper(response);
  test.setStatus(200);
  verify(response).setStatus(200);
  test.addHeader("header", "header value");
  verify(response).addHeader("header", "header value");
  test.addHeader("content-length", "header value2");
  verify(response, never()).addHeader("content-length", "header value");

  test.setIntHeader("header", 5);
  verify(response).setIntHeader("header", 5);
  test.setIntHeader("content-length", 4);
  verify(response, never()).setIntHeader("content-length", 4);

  test.setHeader("set-header", "new value");
  verify(response).setHeader("set-header", "new value");
  test.setHeader("content-length", "content length value");
  verify(response, never()).setHeader("content-length", "content length value");

  test.sendRedirect("location");
  verify(response).sendRedirect("location");
  
  test.flushBuffer();
  verify(response).flushBuffer();

}
 

import org.apache.hadoop.hbase.rest.filter.GZIPResponseWrapper; //导入依赖的package包/类
@Test
public void testSendError() throws IOException {
  HttpServletResponse response = mock(HttpServletResponse.class);
  GZIPResponseWrapper test = new GZIPResponseWrapper(response);

  test.sendError(404);
  verify(response).sendError(404);

  test.sendError(404, "error message");
  verify(response).sendError(404, "error message");

}