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Generators for Data and other Common Objects

License: Apache License 2.0

Java 3.43% Kotlin 96.57%

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Generate POJOs

As a Developer, I would love to have an AlchemyGenerator that inspected a POJO at runtime and populated it with fake data for me.

Name Generators from Dictionary

We don't really want this library making calls to a database or another external system, however it would be nice to have it load actual names from a resource file.

Add DateGenerators.dateBetween(begin,end)

This Generator produces Dates between a specified date.

Date startDate  = ...;
Date endDate = ...;

AlchemyGenerator<Date> datesBetween = DateGenerators.dateBetween(startDate, endDate);

Add TimeGenerators.timeBetween(begin,end)

This Generator produces Instants between a specified time.

Instant startTime  = ...;
Instant endTime = ...;

AlchemyGenerator<Instant> timesBetween = TimeGenerators.timeBetween(startTime, endTime);

New String Generators

Mac Address Generator

String macAddress = one(macAddresses());

Update PojoGenerator to use URL generators for URL types

Add a Byte generator

Returns a single byte at a time.

Byte singleByte = one(BinaryGenerators.bytes());

Filename generator

Generate valid filenames with valid and common text-based extension types.

Hostname and Networking Generator

Could use Generators for the following:

Network Names
Hostnames
Mac Addresses
IP Addresses
URLs

Port generators

int port = one(ports());

URL Generator

URL link = one(urls());

Hostname Generator

String hostname = one(hostsnames());

Address Generator

Addresses are commonly generated for test purposes. Care should be taken to generate correct addresses, and not just random strings.

Fix Pojo Generator issue with Bytes

This exception keeps popping up on Classes with a Byte field:

java.lang.NoSuchMethodException: java.lang.Byte.<init>()
    at java.lang.Class.getConstructor0(Class.java:3082) ~[na:1.8.0_66]
    at java.lang.Class.getDeclaredConstructor(Class.java:2178) ~[na:1.8.0_66]
    at tech.sirwellington.alchemy.generator.ObjectGenerators.instantiate(ObjectGenerators.java:216) [alchemy-generator-1.4-SNAPSHOT.jar:na]
    at tech.sirwellington.alchemy.generator.ObjectGenerators.canInstantiate(ObjectGenerators.java:192) [alchemy-generator-1.4-SNAPSHOT.jar:na]
    at tech.sirwellington.alchemy.generator.ObjectGenerators.pojos(ObjectGenerators.java:153) [alchemy-generator-1.4-SNAPSHOT.jar:na]
    at tech.sirwellington.alchemy.generator.ObjectGenerators.pojos(ObjectGenerators.java:147) [alchemy-generator-1.4-SNAPSHOT.jar:na]
    at tech.sirwellington.alchemy.generator.ObjectGenerators.determineGeneratorFor(ObjectGenerators.java:333) [alchemy-generator-1.4-SNAPSHOT.jar:na]
    at tech.sirwellington.alchemy.generator.ObjectGenerators.injectField(ObjectGenerators.java:266) [alchemy-generator-1.4-SNAPSHOT.jar:na]
    at tech.sirwellington.alchemy.generator.ObjectGenerators.tryInjectField(ObjectGenerators.java:253) [alchemy-generator-1.4-SNAPSHOT.jar:na]
    at tech.sirwellington.alchemy.generator.ObjectGenerators.lambda$pojos$31(ObjectGenerators.java:180) [alchemy-generator-1.4-SNAPSHOT.jar:na]

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