DataOutputStream out = new DataOutputStream(baos);

    initializeData(out);

    data = baos.toByteArray();
  }

  private void initializeData(DataOutputStream out) throws IOException {
    /* Write out various test values NORMALLY */
    out.write(new byte[] {-100, 100});
    out.writeBoolean(true);
    out.writeBoolean(false);
    out.writeByte(100);
    out.writeByte(-100);

    DataOutputStream out = new DataOutputStream(baos);

    initializeData(out);

    data = baos.toByteArray();
  }

  private void initializeData(DataOutputStream out) throws IOException {
    /* Write out various test values NORMALLY */
    out.write(new byte[] {-100, 100});
    out.writeBoolean(true);
    out.writeBoolean(false);
    out.writeByte(100);
    out.writeByte(-100);

		elems []string
		elem  string
		out   bool
	}{
		{"exists", []string{"1", "2", "3"}, "1", true},
		{"not exists", []string{"1", "2", "3"}, "4", false},
	}
	for _, test := range containsTests {
		t.Run(test.name, func(t *testing.T) {
			if out := Contains(test.elems, test.elem); test.out != out {
				t.Errorf("Contains(%v, %s) want: %t, got: %t", test.elems, test.elem, test.out, out)
			}
		})
	}
}

public class TestWriter extends FilterWriter {

  private final TestOutputStream out;

  public TestWriter(TestOption... options) throws IOException {
    this(new TestOutputStream(ByteStreams.nullOutputStream(), options));
  }

  public TestWriter(TestOutputStream out) {
    super(new OutputStreamWriter(checkNotNull(out), UTF_8));
    this.out = out;
  }

  @Override
  public void write(int c) throws IOException {

	[op(0x0f)]
	int SamrEnumerateAliasesInDomain([in] policy_handle *domain_handle,
			[in,out] uint32_t *resume_handle,
			[in] uint32_t acct_flags,
			[out,unique] SamrSamArray *sam,
			[out] uint32_t num_entries);

	[op(0x1b)]
	int SamrOpenAlias([in] policy_handle *domain_handle,
			[in] uint32_t access_mask,
			[in] uint32_t rid,
			[out] policy_handle *alias_handle);

	[op(0x21)]

    assertTrue(source.wasStreamOpened());
    assertFalse(source.wasStreamClosed());

    ByteArrayOutputStream out = new ByteArrayOutputStream();
    ByteStreams.copy(in, out);
    in.close();
    out.close();

    assertTrue(source.wasStreamClosed());
    assertArrayEquals(bytes, out.toByteArray());
  }

  public void testSize() throws IOException {
    assertEquals(bytes.length, source.size());

                        out.append('t');
                        break;
                    case '\f':
                        out.append('\\');
                        out.append('f');
                        break;
                    case '\r':
                        out.append('\\');
                        out.append('r');
                        break;
                    default:

		}
	}

	// The "pre" output should all have been flushed already.
	if want, got := pre, out.String(); want != got {
		t.Errorf("filter should have already flushed %q, but flushed %q", want, got)
	}

	code, err := f.Finish()
	if err != nil {
		t.Fatal(err)
	}

	// Nothing more should have been written to out.
	if want, got := pre, out.String(); want != got {
		t.Errorf("want output %q, got %q", want, got)
	}

	[op(0x0f)]
	int SamrEnumerateAliasesInDomain([in] policy_handle *domain_handle,
			[in,out] uint32_t *resume_handle,
			[in] uint32_t acct_flags,
			[out,unique] SamrSamArray *sam,
			[out] uint32_t num_entries);

	[op(0x1b)]
	int SamrOpenAlias([in] policy_handle *domain_handle,
			[in] uint32_t access_mask,
			[in] uint32_t rid,
			[out] policy_handle *alias_handle);

	[op(0x21)]

}

func plistExtract(fname string, path string) ([]byte, error) {
	out, err := exec.Command("/usr/libexec/PlistBuddy", "-c", "Print "+path, fname).CombinedOutput()
	if err != nil {
		return nil, err
	}
	return bytes.TrimSpace(out), nil
}

func getLines(cmd *exec.Cmd) [][]byte {
	out := output(cmd)
	lines := bytes.Split(out, []byte("\n"))
	// Skip the empty line at the end.
	if len(lines[len(lines)-1]) == 0 {