[#3] Remove overrun exception
Remove UlidCreatorException // extremely unlikely to occur overrun Add UlidCreator.toString() // from UUID to crockford base 32 Change DefaultRandomStrategy // no need for thread local SecureRandom Update test cases Update README.md Update javadoc Test coverage: 94.2%
This commit is contained in:
parent
37ffb9e6ba
commit
fdd33556a7
60
README.md
60
README.md
|
@ -3,22 +3,27 @@
|
||||||
|
|
||||||
A Java library for generating ULIDs.
|
A Java library for generating ULIDs.
|
||||||
|
|
||||||
|
* Generated in lexicographical order;
|
||||||
|
* Can be stored as a UUID/GUID;
|
||||||
|
* Can be stored as a string of 26 chars;
|
||||||
|
* String format is encoded to [Crockford's base32](https://www.crockford.com/base32.html);
|
||||||
|
* String format is URL safe, case insensitive and accepts hyphens.
|
||||||
|
|
||||||
How to Use
|
How to Use
|
||||||
------------------------------------------------------
|
------------------------------------------------------
|
||||||
|
|
||||||
Create a ULID as GUID:
|
Create a ULID:
|
||||||
|
|
||||||
```java
|
```java
|
||||||
UUID ulid = UlidCreator.getUlid();
|
UUID ulid = UlidCreator.getUlid(); // 01706d6c-6aad-c795-370c-98d0be881bba
|
||||||
```
|
```
|
||||||
|
|
||||||
Create a ULID as string:
|
Create a ULID string:
|
||||||
|
|
||||||
```java
|
```java
|
||||||
String ulid = UlidCreator.getUlidString();
|
String ulid = UlidCreator.getUlidString(); // 01E1PPRTMSQ34W7JR5YSND6B8Z
|
||||||
```
|
```
|
||||||
|
|
||||||
|
|
||||||
### Maven dependency
|
### Maven dependency
|
||||||
|
|
||||||
Add these lines to your `pom.xml`.
|
Add these lines to your `pom.xml`.
|
||||||
|
@ -28,7 +33,7 @@ Add these lines to your `pom.xml`.
|
||||||
<dependency>
|
<dependency>
|
||||||
<groupId>com.github.f4b6a3</groupId>
|
<groupId>com.github.f4b6a3</groupId>
|
||||||
<artifactId>ulid-creator</artifactId>
|
<artifactId>ulid-creator</artifactId>
|
||||||
<version>2.0.2</version>
|
<version>2.1.0</version>
|
||||||
</dependency>
|
</dependency>
|
||||||
```
|
```
|
||||||
See more options in [maven.org](https://search.maven.org/artifact/com.github.f4b6a3/ulid-creator).
|
See more options in [maven.org](https://search.maven.org/artifact/com.github.f4b6a3/ulid-creator).
|
||||||
|
@ -36,20 +41,20 @@ See more options in [maven.org](https://search.maven.org/artifact/com.github.f4b
|
||||||
Implementation
|
Implementation
|
||||||
------------------------------------------------------
|
------------------------------------------------------
|
||||||
|
|
||||||
### ULID as GUID
|
### ULID
|
||||||
|
|
||||||
The GUIDs in this library are based on the [ULID specification](https://github.com/ulid/spec). The first 48 bits represent the count of milliseconds since Unix Epoch, 1 January 1970. The remaining 60 bits are generated by a secure random number generator.
|
The GUIDs in this library are based on the [ULID specification](https://github.com/ulid/spec). The first 48 bits represent the count of milliseconds since Unix Epoch, 1 January 1970. The remaining 60 bits are generated by a secure random number generator.
|
||||||
|
|
||||||
Every time the timestamp changes the random part is reset to a new random value. If the current timestamp is equal to the previous one, the random bits are incremented by 1.
|
Every time the timestamp changes the random part is reset to a new random value. If the current timestamp is equal to the previous one, the random bits are incremented by 1.
|
||||||
|
|
||||||
The default random number generator is a thread safe `java.security.SecureRandom`, but it's possible to use any RNG that extends `java.util.Random`.
|
The default random number generator is `java.security.SecureRandom`.
|
||||||
|
|
||||||
```java
|
```java
|
||||||
// GUID based on ULID spec
|
// GUID based on ULID spec
|
||||||
UUID ulid = UlidCreator.getUlid();
|
UUID ulid = UlidCreator.getUlid();
|
||||||
```
|
```
|
||||||
|
|
||||||
Examples of GUIDs based on ULID spec:
|
Sequence of GUIDs based on ULID spec:
|
||||||
|
|
||||||
```text
|
```text
|
||||||
01706d6c-6aac-80bd-7ff5-f660c2dd58ea
|
01706d6c-6aac-80bd-7ff5-f660c2dd58ea
|
||||||
|
@ -74,18 +79,18 @@ Examples of GUIDs based on ULID spec:
|
||||||
millisecs randomness
|
millisecs randomness
|
||||||
```
|
```
|
||||||
|
|
||||||
### ULID as string
|
### ULID string
|
||||||
|
|
||||||
The ULID is a 26 char sequence. See the [ULID specification](https://github.com/ulid/spec) for more information.
|
The ULID string is a sequence of 26 chars. See the [ULID specification](https://github.com/ulid/spec) for more information.
|
||||||
|
|
||||||
See the section on GUIDs to know how the 128 bits are generated in this library.
|
See the section on GUIDs to know how the 128 bits are generated in this library.
|
||||||
|
|
||||||
```java
|
```java
|
||||||
// ULIDs
|
// String based on ULID spec
|
||||||
String ulid = UlidCreator.getUlidString();
|
String ulid = UlidCreator.getUlidString();
|
||||||
```
|
```
|
||||||
|
|
||||||
Examples of ULIDs:
|
Sequence of Strings based on ULID spec:
|
||||||
|
|
||||||
```text
|
```text
|
||||||
01E1PPRTMSQ34W7JR5YSND6B8T
|
01E1PPRTMSQ34W7JR5YSND6B8T
|
||||||
|
@ -107,36 +112,35 @@ Examples of ULIDs:
|
||||||
^ look ^ look
|
^ look ^ look
|
||||||
|
|
||||||
|---------|--------------|
|
|---------|--------------|
|
||||||
milli randomness
|
millisecs randomness
|
||||||
```
|
```
|
||||||
|
|
||||||
#### How use the `UlidSpecCreator` directly
|
### How use the `UlidSpecCreator` directly
|
||||||
|
|
||||||
These are some examples of using the `UlidSpecCreator` to create ULIDs strings:
|
These are some examples of using the `UlidSpecCreator` to create ULID strings:
|
||||||
|
|
||||||
```java
|
```java
|
||||||
// with your custom timestamp strategy
|
// with your custom timestamp strategy
|
||||||
TimestampStrategy customStrategy = new CustomTimestampStrategy();
|
TimestampStrategy customStrategy = new CustomTimestampStrategy();
|
||||||
String ulid = UlidCreator.getUlidSpecCreator()
|
UlidSpecCreator creator = UlidCreator.getUlidSpecCreator()
|
||||||
.withTimestampStrategy(customStrategy)
|
.withTimestampStrategy(customStrategy);
|
||||||
.createString();
|
String ulid = creator.createString();
|
||||||
```
|
```
|
||||||
```java
|
```java
|
||||||
// with your custom random strategy that wraps any random generator
|
// with your custom random strategy that wraps any random generator
|
||||||
RandomStrategy customStrategy = new CustomRandomStrategy();
|
RandomStrategy customStrategy = new CustomRandomStrategy();
|
||||||
String ulid = UlidCreator.getUlidSpecCreator()
|
UlidSpecCreator creator = UlidCreator.getUlidSpecCreator()
|
||||||
.withRandomStrategy(customStrategy)
|
.withRandomStrategy(customStrategy);
|
||||||
.createString();
|
String ulid = creator.createString();
|
||||||
```
|
```
|
||||||
```java
|
```java
|
||||||
// with `java.util.Random` number generator
|
// with `java.util.Random` number generator
|
||||||
Random random = new Random();
|
Random random = new Random();
|
||||||
String ulid = UlidCreator.getUlidSpecCreator()
|
UlidSpecCreator creator = UlidCreator.getUlidSpecCreator()
|
||||||
.withRandomGenerator(random)
|
.withRandomGenerator(random);
|
||||||
.createString();
|
String ulid = creator.createString();
|
||||||
```
|
```
|
||||||
|
|
||||||
|
|
||||||
Benchmark
|
Benchmark
|
||||||
------------------------------------------------------
|
------------------------------------------------------
|
||||||
|
|
||||||
|
@ -150,7 +154,7 @@ Throughput.Java_RandomBased thrpt 5 2234,199 ± 2,844 ops/ms
|
||||||
Throughput.UlidCreator_Ulid thrpt 5 19155,742 ± 22,195 ops/ms
|
Throughput.UlidCreator_Ulid thrpt 5 19155,742 ± 22,195 ops/ms
|
||||||
Throughput.UlidCreator_UlidString thrpt 5 4946,479 ± 22,800 ops/ms
|
Throughput.UlidCreator_UlidString thrpt 5 4946,479 ± 22,800 ops/ms
|
||||||
---------------------------------------------------------------------------
|
---------------------------------------------------------------------------
|
||||||
Total time: 00:06:41
|
Total time: 00:04:01
|
||||||
---------------------------------------------------------------------------
|
---------------------------------------------------------------------------
|
||||||
```
|
```
|
||||||
|
|
||||||
|
@ -162,7 +166,7 @@ AverageTime.Java_RandomBased avgt 5 449,641 ± 0,994 ns/op
|
||||||
AverageTime.UlidCreator_Ulid avgt 5 52,199 ± 0,185 ns/op
|
AverageTime.UlidCreator_Ulid avgt 5 52,199 ± 0,185 ns/op
|
||||||
AverageTime.UlidCreator_UlidString avgt 5 202,014 ± 2,111 ns/op
|
AverageTime.UlidCreator_UlidString avgt 5 202,014 ± 2,111 ns/op
|
||||||
----------------------------------------------------------------------
|
----------------------------------------------------------------------
|
||||||
Total time: 00:06:41
|
Total time: 00:04:01
|
||||||
----------------------------------------------------------------------
|
----------------------------------------------------------------------
|
||||||
```
|
```
|
||||||
|
|
||||||
|
|
|
@ -27,6 +27,7 @@ package com.github.f4b6a3.ulid;
|
||||||
import java.util.UUID;
|
import java.util.UUID;
|
||||||
|
|
||||||
import com.github.f4b6a3.ulid.creator.UlidSpecCreator;
|
import com.github.f4b6a3.ulid.creator.UlidSpecCreator;
|
||||||
|
import com.github.f4b6a3.ulid.exception.InvalidUlidException;
|
||||||
import com.github.f4b6a3.ulid.util.UlidConverter;
|
import com.github.f4b6a3.ulid.util.UlidConverter;
|
||||||
|
|
||||||
/**
|
/**
|
||||||
|
@ -42,13 +43,31 @@ public final class UlidCreator {
|
||||||
/**
|
/**
|
||||||
* Returns a ULID as GUID from a string.
|
* Returns a ULID as GUID from a string.
|
||||||
*
|
*
|
||||||
|
* The input string must be encoded to Crockford's base32, following the ULID
|
||||||
|
* specification.
|
||||||
|
*
|
||||||
|
* An exception is thrown if the ULID string is invalid.
|
||||||
|
*
|
||||||
* @param ulid a ULID string
|
* @param ulid a ULID string
|
||||||
* @return a UUID
|
* @return a UUID
|
||||||
|
* @throws InvalidUlidException if invalid
|
||||||
*/
|
*/
|
||||||
public static UUID fromString(String ulid) {
|
public static UUID fromString(String ulid) {
|
||||||
return UlidConverter.fromString(ulid);
|
return UlidConverter.fromString(ulid);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Convert a UUID to ULID string
|
||||||
|
*
|
||||||
|
* The returning string is encoded to Crockford's base32.
|
||||||
|
*
|
||||||
|
* @param uuid a UUID
|
||||||
|
* @return a ULID string
|
||||||
|
*/
|
||||||
|
public static String toString(UUID ulid) {
|
||||||
|
return UlidConverter.toString(ulid);
|
||||||
|
}
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* Returns a ULID as GUID.
|
* Returns a ULID as GUID.
|
||||||
*
|
*
|
||||||
|
|
|
@ -30,7 +30,6 @@ import java.util.UUID;
|
||||||
import com.github.f4b6a3.ulid.strategy.RandomStrategy;
|
import com.github.f4b6a3.ulid.strategy.RandomStrategy;
|
||||||
import com.github.f4b6a3.ulid.strategy.random.DefaultRandomStrategy;
|
import com.github.f4b6a3.ulid.strategy.random.DefaultRandomStrategy;
|
||||||
import com.github.f4b6a3.ulid.strategy.random.OtherRandomStrategy;
|
import com.github.f4b6a3.ulid.strategy.random.OtherRandomStrategy;
|
||||||
import com.github.f4b6a3.ulid.exception.UlidCreatorException;
|
|
||||||
import com.github.f4b6a3.ulid.strategy.TimestampStrategy;
|
import com.github.f4b6a3.ulid.strategy.TimestampStrategy;
|
||||||
import com.github.f4b6a3.ulid.strategy.timestamp.DefaultTimestampStrategy;
|
import com.github.f4b6a3.ulid.strategy.timestamp.DefaultTimestampStrategy;
|
||||||
import com.github.f4b6a3.ulid.util.UlidConverter;
|
import com.github.f4b6a3.ulid.util.UlidConverter;
|
||||||
|
@ -120,9 +119,6 @@ public class UlidSpecCreator {
|
||||||
* overflow with less, the generation will fail.
|
* overflow with less, the generation will fail.
|
||||||
*
|
*
|
||||||
* @return {@link UUID} a GUID value
|
* @return {@link UUID} a GUID value
|
||||||
*
|
|
||||||
* @throws UlidCreatorException an overrun exception if too many requests are
|
|
||||||
* made within the same millisecond.
|
|
||||||
*/
|
*/
|
||||||
public synchronized UUID create() {
|
public synchronized UUID create() {
|
||||||
|
|
||||||
|
@ -188,18 +184,12 @@ public class UlidSpecCreator {
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* Increment the random part of the GUID.
|
* Increment the random part of the GUID.
|
||||||
*
|
|
||||||
* An exception is thrown when more than 2^80 increment operations are made,
|
|
||||||
* although it's extremely unlikely to occur.
|
|
||||||
*
|
|
||||||
* @throws UlidCreatorException if an overrun happens.
|
|
||||||
*/
|
*/
|
||||||
protected synchronized void increment() {
|
protected synchronized void increment() {
|
||||||
if (++this.random2 >= this.randomMax2) {
|
if (++this.random2 >= this.randomMax2) {
|
||||||
this.random2 = this.random2 & HALF_RANDOM_COMPONENT;
|
this.random2 = this.random2 & HALF_RANDOM_COMPONENT;
|
||||||
if ((++this.random1 >= this.randomMax1)) {
|
if ((++this.random1 >= this.randomMax1)) {
|
||||||
this.reset();
|
this.reset();
|
||||||
throw new UlidCreatorException(OVERRUN_MESSAGE);
|
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
|
@ -1,34 +0,0 @@
|
||||||
/*
|
|
||||||
* MIT License
|
|
||||||
*
|
|
||||||
* Copyright (c) 2020 Fabio Lima
|
|
||||||
*
|
|
||||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
||||||
* of this software and associated documentation files (the "Software"), to deal
|
|
||||||
* in the Software without restriction, including without limitation the rights
|
|
||||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
||||||
* copies of the Software, and to permit persons to whom the Software is
|
|
||||||
* furnished to do so, subject to the following conditions:
|
|
||||||
*
|
|
||||||
* The above copyright notice and this permission notice shall be included in all
|
|
||||||
* copies or substantial portions of the Software.
|
|
||||||
*
|
|
||||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
||||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
||||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
||||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
||||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
||||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
||||||
* SOFTWARE.
|
|
||||||
*/
|
|
||||||
|
|
||||||
package com.github.f4b6a3.ulid.exception;
|
|
||||||
|
|
||||||
public final class UlidCreatorException extends RuntimeException {
|
|
||||||
|
|
||||||
private static final long serialVersionUID = 1L;
|
|
||||||
|
|
||||||
public UlidCreatorException(String message) {
|
|
||||||
super(message);
|
|
||||||
}
|
|
||||||
}
|
|
|
@ -30,14 +30,14 @@ import java.util.Random;
|
||||||
import com.github.f4b6a3.ulid.strategy.RandomStrategy;
|
import com.github.f4b6a3.ulid.strategy.RandomStrategy;
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* It uses a thread local instance of {@link java.security.SecureRandom}.
|
* It uses an instance of {@link java.security.SecureRandom}.
|
||||||
*/
|
*/
|
||||||
public final class DefaultRandomStrategy implements RandomStrategy {
|
public final class DefaultRandomStrategy implements RandomStrategy {
|
||||||
|
|
||||||
protected static final ThreadLocal<Random> THREAD_LOCAL_RANDOM = ThreadLocal.withInitial(SecureRandom::new);
|
private static final Random SECURE_RANDOM = new SecureRandom();
|
||||||
|
|
||||||
@Override
|
@Override
|
||||||
public void nextBytes(byte[] bytes) {
|
public void nextBytes(byte[] bytes) {
|
||||||
THREAD_LOCAL_RANDOM.get().nextBytes(bytes);
|
SECURE_RANDOM.nextBytes(bytes);
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
|
@ -40,13 +40,13 @@ public final class UlidConverter {
|
||||||
*
|
*
|
||||||
* The returning string is encoded to Crockford's base32.
|
* The returning string is encoded to Crockford's base32.
|
||||||
*
|
*
|
||||||
* @param uuid a UUID
|
* @param ulid a UUID
|
||||||
* @return a ULID
|
* @return a ULID
|
||||||
*/
|
*/
|
||||||
public static String toString(UUID uuid) {
|
public static String toString(UUID ulid) {
|
||||||
|
|
||||||
final long msb = uuid.getMostSignificantBits();
|
final long msb = ulid.getMostSignificantBits();
|
||||||
final long lsb = uuid.getLeastSignificantBits();
|
final long lsb = ulid.getLeastSignificantBits();
|
||||||
|
|
||||||
final long time = ((msb & 0xffffffffffff0000L) >>> 16);
|
final long time = ((msb & 0xffffffffffff0000L) >>> 16);
|
||||||
final long random1 = ((msb & 0x000000000000ffffL) << 24) | ((lsb & 0xffffff0000000000L) >>> 40);
|
final long random1 = ((msb & 0x000000000000ffffL) << 24) | ((lsb & 0xffffff0000000000L) >>> 40);
|
||||||
|
|
|
@ -5,7 +5,6 @@ import java.util.UUID;
|
||||||
|
|
||||||
import com.github.f4b6a3.ulid.UlidCreator;
|
import com.github.f4b6a3.ulid.UlidCreator;
|
||||||
import com.github.f4b6a3.ulid.creator.UlidSpecCreator;
|
import com.github.f4b6a3.ulid.creator.UlidSpecCreator;
|
||||||
import com.github.f4b6a3.ulid.exception.UlidCreatorException;
|
|
||||||
import com.github.f4b6a3.ulid.strategy.timestamp.FixedTimestampStretegy;
|
import com.github.f4b6a3.ulid.strategy.timestamp.FixedTimestampStretegy;
|
||||||
|
|
||||||
/**
|
/**
|
||||||
|
@ -93,13 +92,7 @@ public class UniquenessTest {
|
||||||
for (int i = 0; i < max; i++) {
|
for (int i = 0; i < max; i++) {
|
||||||
|
|
||||||
// Request a UUID
|
// Request a UUID
|
||||||
UUID uuid = null;
|
UUID uuid = creator.create();
|
||||||
try {
|
|
||||||
uuid = creator.create();
|
|
||||||
} catch (UlidCreatorException e) {
|
|
||||||
// Ignore the overrun exception and try again
|
|
||||||
uuid = creator.create();
|
|
||||||
}
|
|
||||||
|
|
||||||
if (verbose) {
|
if (verbose) {
|
||||||
// Calculate and show progress
|
// Calculate and show progress
|
||||||
|
|
|
@ -9,7 +9,6 @@ import java.util.UUID;
|
||||||
import org.junit.Test;
|
import org.junit.Test;
|
||||||
|
|
||||||
import com.github.f4b6a3.ulid.UlidCreator;
|
import com.github.f4b6a3.ulid.UlidCreator;
|
||||||
import com.github.f4b6a3.ulid.exception.UlidCreatorException;
|
|
||||||
import com.github.f4b6a3.ulid.strategy.timestamp.FixedTimestampStretegy;
|
import com.github.f4b6a3.ulid.strategy.timestamp.FixedTimestampStretegy;
|
||||||
|
|
||||||
import static org.junit.Assert.*;
|
import static org.junit.Assert.*;
|
||||||
|
@ -126,7 +125,7 @@ public class UlidSpecCreatorTest {
|
||||||
}
|
}
|
||||||
|
|
||||||
@Test
|
@Test
|
||||||
public void testShouldThrowOverflowException1() {
|
public void testIncrementRandomComponentMaximum1() {
|
||||||
|
|
||||||
long random1 = 0x000000ffffffffffL;
|
long random1 = 0x000000ffffffffffL;
|
||||||
long random2 = 0x000000ffffffffffL;
|
long random2 = 0x000000ffffffffffL;
|
||||||
|
@ -157,16 +156,12 @@ public class UlidSpecCreatorTest {
|
||||||
BigInteger bigint2 = new BigInteger(concat2, 16);
|
BigInteger bigint2 = new BigInteger(concat2, 16);
|
||||||
assertEquals(bigint1.add(BigInteger.valueOf(DEFAULT_LOOP_MAX)), bigint2);
|
assertEquals(bigint1.add(BigInteger.valueOf(DEFAULT_LOOP_MAX)), bigint2);
|
||||||
|
|
||||||
try {
|
// This line resets the random component
|
||||||
uuid = creator.create();
|
uuid = creator.create();
|
||||||
fail("It should throw an overflow exception.");
|
|
||||||
} catch (UlidCreatorException e) {
|
|
||||||
// success
|
|
||||||
}
|
|
||||||
}
|
}
|
||||||
|
|
||||||
@Test
|
@Test
|
||||||
public void testShouldThrowOverflowException2() {
|
public void testIncrementRandomComponentMaximum2() {
|
||||||
|
|
||||||
long random1 = (RANDOM.nextLong() & UlidSpecCreatorMock.HALF_RANDOM_COMPONENT);
|
long random1 = (RANDOM.nextLong() & UlidSpecCreatorMock.HALF_RANDOM_COMPONENT);
|
||||||
long random2 = (RANDOM.nextLong() & UlidSpecCreatorMock.HALF_RANDOM_COMPONENT);
|
long random2 = (RANDOM.nextLong() & UlidSpecCreatorMock.HALF_RANDOM_COMPONENT);
|
||||||
|
@ -204,13 +199,9 @@ public class UlidSpecCreatorTest {
|
||||||
String concat2 = (Long.toHexString(hi2) + Long.toHexString(lo2));
|
String concat2 = (Long.toHexString(hi2) + Long.toHexString(lo2));
|
||||||
BigInteger bigint2 = new BigInteger(concat2, 16);
|
BigInteger bigint2 = new BigInteger(concat2, 16);
|
||||||
assertEquals(bigint1.add(BigInteger.valueOf(DEFAULT_LOOP_MAX)), bigint2);
|
assertEquals(bigint1.add(BigInteger.valueOf(DEFAULT_LOOP_MAX)), bigint2);
|
||||||
|
|
||||||
try {
|
// This line resets the random component
|
||||||
creator.create();
|
creator.create();
|
||||||
fail("It should throw an overflow exception.");
|
|
||||||
} catch (UlidCreatorException e) {
|
|
||||||
// success
|
|
||||||
}
|
|
||||||
}
|
}
|
||||||
|
|
||||||
@Test
|
@Test
|
||||||
|
|
Loading…
Reference in New Issue