# How To - Recipes { #how-to-recipes }

Here you will see different recipes or "how to" guides for **several topics**.

Most of these ideas would be more or less **independent**, and in most cases you should only need to study them if they apply directly to **your project**.

If something seems interesting and useful to your project, go ahead and check it, but otherwise, you might probably just skip them.

/// tip

  @Test fun validateCompactTableInvariants() {
    // Less than 16,834 bytes, because we binary search on a 14-bit index.
    assertThat(compactTable.sections.length).isLessThan(1 shl 14)

    // Less than 65,536 bytes, because we binary search on a 14-bit index with a stride of 4 bytes.
    assertThat(compactTable.ranges.length).isLessThan((1 shl 14) * 4)

    // Less than 16,384 chars, because we index on a 14-bit index in the ranges table.

  - fern-api
  - ndimares
  - svixhq
  - Alek99
  - codacy
  - zanfaruqui
  - scalar
  - bump-sh
  - andrew-propelauth
  - svix
  - zuplo-oss
  - zuplo
  - Kong
  - speakeasy-api
  - jess-render
  - blockbee-io
  - liblaber
  - render-sponsorships
  - renderinc
  - stainless-api
  - snapit-cypher
  - coderabbitai
  - permitio
  - LambdaTest-Inc
  - dribia
  - madisonredtfeldt

	// 	}
	// }

	check := func(exp, got madmin.LockEntries) (int, bool) {
		if len(exp) != len(got) {
			return 0, false
		}
		sort.Slice(exp, byResourceUID{exp}.Less)
		sort.Slice(got, byResourceUID{got}.Less)
		// printEntries(exp)
		// printEntries(got)
		for i, e := range exp {
			if !e.Timestamp.Equal(got[i].Timestamp) {
				return i, false
			}

 */
class PacCredentialTypeTest {

    /**
     * Tests the constructor with a valid byte array.
     */
    @Test
    void testConstructorWithValidData() {
        // A byte array with a length less than 32 should be considered valid.
        byte[] validData = new byte[31];
        assertDoesNotThrow(() -> new PacCredentialType(validData));
    }

    /**

   * @param value any value in the range of the {@code int} type
   * @return the {@code int} value that equals {@code value}
   * @throws IllegalArgumentException if {@code value} is greater than {@link Integer#MAX_VALUE} or
   *     less than {@link Integer#MIN_VALUE}
   */
  public static int checkedCast(long value) {
    int result = (int) value;
    checkArgument(result == value, "Out of range: %s", value);
    return result;
  }

  /**

      assertThat(expected.message).isEqualTo(
        "Payload size must be less than or equal to 125",
      )
    }
  }

  @Test fun pongTooLongThrows() {
    assertFailsWith<IllegalArgumentException> {
      serverWriter.writePong((binaryData(1000)))
    }.also { expected ->
      assertThat(expected.message).isEqualTo(
        "Payload size must be less than or equal to 125",
      )
    }
  }

   * part of the smeared hash of the element not covered by the hashtable mask, whereas the low bits
   * are the "next" pointer (pointing to the next entry in the bucket chain), which will always be
   * less than or equal to the hashtable mask.
   *
   * <pre>
   * hash  = aaaaaaaa
   * mask  = 00000fff
   * next  = 00000bbb
   * entry = aaaaabbb
   * </pre>
   *

        .test();
  }

  public void testRoundToDouble_twoToThe54PlusOne() {
    double twoToThe54 = Math.pow(2, 54);
    // the representable doubles are 2^54 and 2^54 + 4
    // 2^54+1 is less than halfway between, so HALF_DOWN and HALF_UP will both go down.
    new RoundToDoubleTester(BigDecimal.valueOf((1L << 54) + 1))
        .setExpectation(twoToThe54, DOWN, FLOOR, HALF_DOWN, HALF_UP, HALF_EVEN)

	Lt(gte).Build(builder)
}

// Lt less than for where
type Lt Eq

func (lt Lt) Build(builder Builder) {
	builder.WriteQuoted(lt.Column)
	builder.WriteString(" < ")
	builder.AddVar(builder, lt.Value)
}

func (lt Lt) NegationBuild(builder Builder) {
	Gte(lt).Build(builder)
}

// Lte less than or equal to for where
type Lte Eq