lkClient := newlockRESTClient(endpoint)
	if lkClient.IsOnline() {
		t.Fatalf("unexpected result. connection was online")
	}

	// Attempt all calls.
	_, err = lkClient.RLock(t.Context(), dsync.LockArgs{})
	if err == nil {
		t.Fatal("Expected for Rlock to fail")
	}

	_, err = lkClient.Lock(t.Context(), dsync.LockArgs{})
	if err == nil {
		t.Fatal("Expected for Lock to fail")
	}

			// what is in exp is in got
			for k := range exp {
				if exp[k] != got[k] {
					t.Fatalf("interval %s: Expected %d values but got %d values\n", k, exp[k], got[k])
				}
			}
			// what is absent in exp is absent in got too
			for k := range got {
				if _, ok := exp[k]; !ok && got[k] > 0 {
					t.Fatalf("Unexpected interval: %s has value %d\n", k, got[k])
				}
			}
		})
	}
}

                (byte) 0x0b, (byte) 0x0b, (byte) 0x0b, (byte) 0x0b, (byte) 0x0b, (byte) 0x0b, (byte) 0x0b };
        byte[] data = "Hi There".getBytes();

        // Calculate expected HMACT64 result manually
        MessageDigest md5 = MessageDigest.getInstance("MD5");
        byte[] ipad = new byte[64];
        byte[] opad = new byte[64];

      sink.writeByte(0)
      sink.flush()
    }.also { expected ->
      assertThat(expected.message).isEqualTo("stream finished")
    }
    assertFailsWith<IOException> {
      stream.source.read(Buffer(), 1)
    }.also { expected ->
      assertThat(expected.message).isEqualTo("stream was reset: CANCEL")
    }

    // Verify the peer received what was expected.
    val synStream = peer.takeFrame()

		if err != testCase.expectedErr {
			t.Errorf("TestXLStorage case %d: Expected: \"%s\", got: \"%s\"", i+1, testCase.expectedErr, err)
		}
		if err == nil {
			for _, expected := range testCase.expectedListDir {
				if !strings.Contains(strings.Join(dirList, ","), expected) {
					t.Errorf("TestXLStorage case %d: Expected the directory listing to be \"%v\", but got \"%v\"", i+1, testCase.expectedListDir, dirList)
				}

        assertEquals(8, bytesWritten, "writeParametersWireFormat should write 8 bytes");

        byte[] expected = expectedParameters(fid, securityInformation);
        for (int i = 0; i < expected.length; i++) {
            final int idx = i;
            assertEquals(expected[i], dst[offset + i], () -> "byte index " + idx);
        }
        // The region before offset and after the payload must remain untouched.

  }

  private static void assertToStringWorks(String expected, CharMatcher matcher) {
    assertEquals(expected, matcher.toString());
    assertEquals(expected, matcher.precomputed().toString());
    assertEquals(expected, matcher.negate().negate().toString());
    assertEquals(expected, matcher.negate().precomputed().negate().toString());
    assertEquals(expected, matcher.negate().precomputed().negate().precomputed().toString());
  }

      throw new AssertionError(
          "expected to throw " + expectedThrowable.getSimpleName() + " but threw " + t, t);
    }
    if (userPassedSupplier) {
      throw new AssertionError(
          "expected to throw "
              + expectedThrowable.getSimpleName()
              + " but returned result: "
              + result);
    } else {
      throw new AssertionError("expected to throw " + expectedThrowable.getSimpleName());

  fun receiveRequest(expected: String) =
    apply {
      actions += { stream ->
        val actual = stream.source.readUtf8(expected.utf8Size())
        if (actual != expected) throw AssertionError("$actual != $expected")
      }
    }

  fun exhaustRequest() =
    apply {
      actions += { stream ->
        if (!stream.source.exhausted()) throw AssertionError("expected exhausted")
      }
    }

			if err != nil && testCase.shouldPass {
				t.Errorf("Test %d: %s:  Expected to pass, but failed with: <ERROR> %s", i+1, instanceType, err.Error())
			}
			if err == nil && !testCase.shouldPass {
				t.Errorf("Test %d: %s: Expected to fail with <ERROR> \"%s\", but passed instead", i+1, instanceType, testCase.err.Error())
			}
			// Failed as expected, but does it fail for the expected reason.
			if err != nil && !testCase.shouldPass {