CharMatcher len1 = SmallCharMatcher.from(bitSet("#"), "#");
    CharMatcher len2 = SmallCharMatcher.from(bitSet("ab"), "ab");
    CharMatcher len3 = SmallCharMatcher.from(bitSet("abc"), "abc");
    CharMatcher len4 = SmallCharMatcher.from(bitSet("abcd"), "abcd");
    assertTrue(len1.matches('#'));
    assertFalse(len1.matches('!'));
    assertTrue(len2.matches('a'));
    assertTrue(len2.matches('b'));

		t.Fatalf("expect 4 abcd but got %s. r.w=%d, r.r=%d", rb.Bytes(nil), rb.w, rb.r)
	}

	// check empty or full
	if rb.IsEmpty() {
		t.Fatalf("expect IsEmpty is false but got true")
	}
	if rb.IsFull() {
		t.Fatalf("expect IsFull is false but got true")
	}

	// write 48 bytes, should full
	n, err = rb.Write([]byte(strings.Repeat("abcd", 12)))
	if err != nil {

        assertEquals("abcd", normalizer.normalize("ａｂｃｄ", null));
        assertEquals("みかん", normalizer.normalize("みかん", null));
        assertEquals("みかん ﾘﾝｺﾞ", normalizer.normalize("みかん　リンゴ", null));
    }

    public void test_AnyLower() {
        ICUNormalizer normalizer = new ICUNormalizer("Any-Lower");
        assertEquals("abcd", normalizer.normalize("ABCD", null));
    }

    val response = client.newCall(request).execute()
    assertThat(response.body.string()).isEqualTo("abc")
    assertThat(socksProxy.connectionCount()).isEqualTo(1)
  }

  @Test
  fun checkRemoteDNSResolve() {
    // This testcase will fail if the target is resolved locally instead of through the proxy.
    server.enqueue(MockResponse.Builder().body("abc").build())
    val client =
      clientTestRule
        .newClientBuilder()

[
	uuid(12345778-1234-abcd-ef00-0123456789ab),
	version(0.0)
]
interface lsarpc
{
	import "../rpc.idl";

	typedef struct {
		uint32_t length;
		uint16_t impersonation_level;
		uint8_t context_mode;
		uint8_t effective_only;
	} LsarQosInfo;

	typedef struct {
		uint32_t length;
		uint8_t *root_directory;
		unicode_string *object_name;
		uint32_t attributes;
		uint32_t security_descriptor;

[
	uuid(12345778-1234-abcd-ef00-0123456789ab),
	version(0.0)
]
interface lsarpc
{
	import "../rpc.idl";

	typedef struct {
		uint32_t length;
		uint16_t impersonation_level;
		uint8_t context_mode;
		uint8_t effective_only;
	} LsarQosInfo;

	typedef struct {
		uint32_t length;
		uint8_t *root_directory;
		unicode_string *object_name;
		uint32_t attributes;
		uint32_t security_descriptor;

	ADC	R0->28, R1           // 401ea1e0
	ADC	R0@>28, R1           // 601ea1e0
	ADC.S	R0<<28, R1           // 001eb1e0
	ADC.S	R0>>28, R1           // 201eb1e0
	ADC.S	R0->28, R1           // 401eb1e0
	ADC.S	R0@>28, R1           // 601eb1e0
	ADC	R0<<R1, R2, R3       // 1031a2e0
	ADC	R0>>R1, R2, R3       // 3031a2e0
	ADC	R0->R1, R2, R3       // 5031a2e0
	ADC	R0@>R1, R2, R3       // 7031a2e0

# Usage

```go
package main

import (
	"fmt"

	"github.com/smallnest/ringbuffer"
)

func main() {
	rb := ringbuffer.New(1024)

	// write
	rb.Write([]byte("abcd"))
	fmt.Println(rb.Length())
	fmt.Println(rb.Free())

	// read
	buf := make([]byte, 4)
	rb.Read(buf)
	fmt.Println(string(buf))
}
```

    // Two identical invalid pairs.
    assertThat(Strings.commonPrefix("abc\uD8AB\uD8ACdef", "abc\uD8AB\uD8ACxyz"))
        .isEqualTo("abc\uD8AB\uD8AC");
    // Two differing invalid pairs.
    assertThat(Strings.commonPrefix("abc\uD8AB\uD8ABdef", "abc\uD8AB\uD8ACxyz"))
        .isEqualTo("abc\uD8AB");
    // One orphan high surrogate.

          ),
        body = "ABC.1",
      ),
    )
    server.enqueue(
      MockResponse(
        headers =
          headersOf(
            "Last-Modified",
            formatDate(-1, TimeUnit.HOURS)!!,
            "Expires",
            formatDate(1, TimeUnit.HOURS)!!,
          ),
        body = "ABC.2",
      ),
    )
    client =
      client