br.ReadRune()
	br.Peek(1)
	if err := br.UnreadRune(); err == nil {
		t.Error("UnreadRune didn't fail after Peek")
	}
}

func TestNoUnreadByteAfterPeek(t *testing.T) {
	br := NewReader(strings.NewReader("example"))
	br.ReadByte()
	br.Peek(1)
	if err := br.UnreadByte(); err == nil {
		t.Error("UnreadByte didn't fail after Peek")
	}
}

func TestNoUnreadRuneAfterDiscard(t *testing.T) {

import assertk.assertions.isNotSameAs
import assertk.assertions.isNull
import assertk.assertions.isTrue
import assertk.assertions.matches
import assertk.assertions.prop
import assertk.assertions.startsWith
import assertk.fail
import java.io.FileNotFoundException
import java.io.IOException
import java.io.InterruptedIOException
import java.net.CookieManager
import java.net.CookiePolicy
import java.net.HttpCookie

     * has a charset other than utf-8 the behaviour differs by platform.
     *
     * On the JVM the encoding will be used instead of utf-8.
     *
     * On non JVM platforms, this method will fail for encodings other than utf-8.
     */
    @JvmStatic
    @JvmName("create")
    fun String.toResponseBody(contentType: MediaType? = null): ResponseBody {

 *
 * <p>This class uses (possibly repeated) invocations of {@link java.lang.System#gc()} to cause
 * finalization to happen. However, a call to {@code System.gc()} is specified to be no more than a
 * hint, so this technique may fail at the whim of the JDK implementation, for example if a user
 * specified the JVM flag {@code -XX:+DisableExplicitGC}. But in practice, it works very well for
 * ordinary tests.
 *

        SmbTreeHandleImpl handleWithNullLoc = new SmbTreeHandleImpl(null, freshConnection);
        assertNotNull(handleWithNullLoc);

        // But operations that use resourceLoc might fail
        // For example, send methods would likely throw NPE when trying to use the null resourceLoc
    }

* Validação de dados
* Anotação da API e documentação automática

Você apenas tem que declará-los uma vez.

                    throw new FessSystemException("Not found: " + baseDir.getAbsolutePath());
                }
            }
        };
        try {
            manager.init();
            fail();
        } catch (FessSystemException e) {
            assertTrue(e.getMessage().contains("Not found"));
        }
    }

    // Test getThumbnailPathOption
    public void test_getThumbnailPathOption() {

    // call get() twice to make sure that memoization doesn't interfere
    // with throwing the exception
    for (int i = 0; i < 2; i++) {
      try {
        memoizedSupplier.get();
        fail("failed to throw NullPointerException");
      } catch (NullPointerException e) {
        // this is what should happen
      }
    }
  }

  @J2ktIncompatible
  @GwtIncompatible // SerializableTester

          Function<? super T, ? extends V> valueFunction) {
    checkNotNull(comparator);
    checkNotNull(keyFunction);
    checkNotNull(valueFunction);
    /*
     * We will always fail if there are duplicate keys, and the keys are always sorted by
     * the Comparator, so the entries can come in an arbitrary order -- so we report UNORDERED.
     */
    return Collector.of(

          Function<? super T, ? extends V> valueFunction) {
    checkNotNull(comparator);
    checkNotNull(keyFunction);
    checkNotNull(valueFunction);
    /*
     * We will always fail if there are duplicate keys, and the keys are always sorted by
     * the Comparator, so the entries can come in an arbitrary order -- so we report UNORDERED.
     */
    return Collector.of(