import java.util.Map;
import javax.annotation.CheckForNull;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * Static utility methods pertaining to {@link Escaper} instances.
 *
 * @author Sven Mawson
 * @author David Beaumont
 * @since 15.0
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault
public final class Escapers {
  private Escapers() {}

  /**

          C filtered = filter(createUnfiltered(contents), EVEN);
          try {
            assertEquals(expectedResult, filtered.add(toAdd));
            assertTrue(EVEN.apply(toAdd));
          } catch (IllegalArgumentException e) {
            assertFalse(EVEN.apply(toAdd));
          }
        }
      }
    }

    public void testRemove() {

          C filtered = filter(createUnfiltered(contents), EVEN);
          try {
            assertEquals(expectedResult, filtered.add(toAdd));
            assertTrue(EVEN.apply(toAdd));
          } catch (IllegalArgumentException e) {
            assertFalse(EVEN.apply(toAdd));
          }
        }
      }
    }

    public void testRemove() {

  public void testRoundToDouble_oneThird() {
    new RoundToDoubleTester(
            BigDecimal.ONE.divide(BigDecimal.valueOf(3), new MathContext(50, HALF_EVEN)))
        .roundUnnecessaryShouldThrow()
        .setExpectation(0.33333333333333337, UP, CEILING)
        .setExpectation(0.3333333333333333, HALF_EVEN, FLOOR, DOWN, HALF_UP, HALF_DOWN)
        .test();
  }

  public void testRoundToDouble_halfMinDouble() {

  public void testRoundToDouble_oneThird() {
    new RoundToDoubleTester(
            BigDecimal.ONE.divide(BigDecimal.valueOf(3), new MathContext(50, HALF_EVEN)))
        .roundUnnecessaryShouldThrow()
        .setExpectation(0.33333333333333337, UP, CEILING)
        .setExpectation(0.3333333333333333, HALF_EVEN, FLOOR, DOWN, HALF_UP, HALF_DOWN)
        .test();
  }

  public void testRoundToDouble_halfMinDouble() {

     * Even if empty string, treated as empty plainly. So "IF pmb != null" is false if empty.
     * @param hostname The parameter value of hostname. (NotNull)
     */
    public void setHostname(String hostname) {
        registerVariable("hostname", hostname);
    }

    /**
     * Set the value of jobname, used in parameter comment. <br>

  public void testLog2HalfEven() {
    for (BigInteger x : POSITIVE_BIGINTEGER_CANDIDATES) {
      int halfEven = BigIntegerMath.log2(x, HALF_EVEN);
      // Now figure out what rounding mode we should behave like (it depends if FLOOR was
      // odd/even).
      boolean floorWasEven = (BigIntegerMath.log2(x, FLOOR) & 1) == 0;
      assertEquals(BigIntegerMath.log2(x, floorWasEven ? HALF_DOWN : HALF_UP), halfEven);
    }

  public void testLog2HalfEven() {
    for (BigInteger x : POSITIVE_BIGINTEGER_CANDIDATES) {
      int halfEven = BigIntegerMath.log2(x, HALF_EVEN);
      // Now figure out what rounding mode we should behave like (it depends if FLOOR was
      // odd/even).
      boolean floorWasEven = (BigIntegerMath.log2(x, FLOOR) & 1) == 0;
      assertEquals(BigIntegerMath.log2(x, floorWasEven ? HALF_DOWN : HALF_UP), halfEven);
    }

    // forward map ordered by currency (even for country values)
    assertThat(bimap.values()).containsExactly(Country.SWITZERLAND, Country.CHILE).inOrder();
    // backward map ordered by country
    assertThat(bimap.inverse().keySet())
        .containsExactly(Country.CHILE, Country.SWITZERLAND)
        .inOrder();
    // backward map ordered by country (even for currency values)

    // forward map ordered by currency (even for country values)
    assertThat(bimap.values()).containsExactly(Country.SWITZERLAND, Country.CHILE).inOrder();
    // backward map ordered by country
    assertThat(bimap.inverse().keySet())
        .containsExactly(Country.CHILE, Country.SWITZERLAND)
        .inOrder();
    // backward map ordered by country (even for currency values)