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https://github.com/cksac/fake-rs

A library for generating fake data in Rust.
https://github.com/cksac/fake-rs

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A library for generating fake data in Rust.

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# Fake



![Rust](https://github.com/cksac/fake-rs/workflows/Rust/badge.svg)

[![Docs Status](https://docs.rs/fake/badge.svg)](https://docs.rs/fake)

[![Latest Version](https://img.shields.io/crates/v/fake.svg)](https://crates.io/crates/fake)



A Rust library for generating fake data.



## Installation



Default:



```toml

[dependencies]

fake = { version = "2.9.2", features = ["derive"] }

```



Available features:



- `derive`: if you want to use `#[derive(Dummy)]`

- supported crates feature flags:

  - `chrono`

  - `chrono-tz`

  - `http`

  - `ulid`

  - `uuid`

  - `bigdecimal` (via `bigdecimal-rs`)

  - `rust_decimal`

  - `random_color`

  - `geo`

  - `semver`

  - `serde_json`

  - `time`

  - `zerocopy`

  - `glam`

- `always-true-rng`: expose AlwaysTrueRng

- `maybe-non-empty-collections`: allow to use AlwaysTrueRng to generate non-empty collections



## Usage



```rust

use fake::{Dummy, Fake, Faker};

use rand::rngs::StdRng;

use rand::SeedableRng;



#[derive(Debug, Dummy)]

pub struct Foo {

    #[dummy(faker = "1000..2000")]

    order_id: usize,

    customer: String,

    paid: bool,

}



#[derive(Debug, Dummy)]

struct Bar {

    field: Vec,

}



fn main() {

    // type derived Dummy

    let f: Foo = Faker.fake();

    println!("{:?}", f);



    let b: Bar = Faker.fake();

    println!("{:?}", b);



    // using `Faker` to generate default fake value of given type

    let tuple = Faker.fake::<(u8, u32, f32)>();

    println!("tuple {:?}", tuple);

    println!("String {:?}", Faker.fake::());



    // types U can used to generate fake value T, if `T: Dummy`

    println!("String {:?}", (8..20).fake::());

    println!("u32 {:?}", (8..20).fake::());



    // using `faker` module with locales

    use fake::faker::name::raw::*;

    use fake::locales::*;



    let name: String = Name(EN).fake();

    println!("name {:?}", name);



    let name: String = Name(ZH_TW).fake();

    println!("name {:?}", name);



    // using convenient function without providing locale

    use fake::faker::lorem::en::*;

    let words: Vec = Words(3..5).fake();

    println!("words {:?}", words);



    // using macro to generate nested collection

    let name_vec = fake::vec![String as Name(EN); 4, 3..5, 2];

    println!("random nested vec {:?}", name_vec);



    // fixed seed rng

    let seed = [

        1, 0, 0, 0, 23, 0, 0, 0, 200, 1, 0, 0, 210, 30, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,

        0, 0, 0, 0,

    ];

    let ref mut r = StdRng::from_seed(seed);

    for _ in 0..5 {

        let v: usize = Faker.fake_with_rng(r);

        println!("value from fixed seed {}", v);

    }

}

```



# Fakers with locale



## Lorem



```rust

Word();

Words(count: Range);

Sentence(count: Range);

Sentences(count: Range);

Paragraph(count: Range);

Paragraphs(count: Range);

```



## Name



```rust

FirstName();

LastName();

Title();

Suffix();

Name();

NameWithTitle();

```



## Number



```rust

Digit();

NumberWithFormat<'a>(fmt: &'a str);

```



## Boolean



```rust

Boolean(ratio: u8);

```



## Internet



```rust

FreeEmailProvider();

DomainSuffix();

FreeEmail();

SafeEmail();

Username();

Password(len_range: Range);

IPv4();

IPv6();

IP();

MACAddress();

UserAgent();

```



## HTTP



```rust

RfcStatusCode();

ValidStatusCode();

```



## Color



```rust

HexColor();

RgbColor();

RgbaColor();

HslColor();

HslaColor();

Color();

```



## Company



```rust

CompanySuffix();

CompanyName();

Buzzword();

BuzzwordMiddle();

BuzzwordTail();

CatchPhase();

BsVerb();

BsAdj();

BsNoun();

Bs();

Profession();

Industry();

```



## Currency



```rust

CurrencyCode();

CurrencyName();

CurrencySymbol();

```



## Creditcard



```rust

CreditCardNumber();

```



## Address



```rust

CityPrefix();

CitySuffix();

CityName();

CountryName();

CountryCode();

StreetSuffix();

StreetName();

TimeZone();

StateName();

StateAbbr();

SecondaryAddressType();

SecondaryAddress();

ZipCode();

PostCode();

BuildingNumber();

Latitude();

Longitude();

Geohash(precision: u8);

```



## Administrative



```rust

HealthInsuranceCode();

```



## Automotive



```rust

LicencePlate();

```



## Barcode



```rust

Isbn();

Isbn13();

Isbn10();

```



## Phone Number



```rust

PhoneNumber();

CellNumber();

```



## Date/Time



```rust

Time();

Date();

DateTime();

Duration();

DateTimeBefore(dt: DateTime);

DateTimeAfter(dt: DateTime);

DateTimeBetween(start: DateTime, end: DateTime);

```



## Filesystem



```rust

FilePath();

FileName();

FileExtension();

DirPath();

```



### Finance



```rust

Bic();

Isin();

```



### UUID



```rust

UUIDv1();

UUIDv3();

UUIDv4();

UUIDv5();

```



### Decimal



```rust

Decimal();

PositiveDecimal();

NegativeDecimal();

NoDecimalPoints();

```



### Bigdecimal



```rust

BigDecimal();

PositiveBigDecimal();

NegativeBigDecimal();

NoBigDecimalPoints();

```



# LICENSE



This project is licensed under either of



- Apache License, Version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or

  http://www.apache.org/licenses/LICENSE-2.0)

- MIT license ([LICENSE-MIT](LICENSE-MIT) or

  http://opensource.org/licenses/MIT)



at your option.