View Source Peri.Generatable (peri v0.2.6)

A module for generating sample data based on Peri schemas using StreamData.

This module provides functions to generate various types of data, conforming to the schema definitions given in Peri. It leverages the StreamData library to create streams of random data that match the specified types and constraints.

Examples 

iex> schema = %{
...>   name: :string,
...>   age: {:integer, {:gte, 18}},
...>   active: :boolean
...> }
iex> Peri.Generatable.gen(schema)
%StreamData{
  type: :fixed_map,
  data: %{name: StreamData.string(:alphanumeric), age: StreamData.filter(StreamData.integer(), &(&1 >= 18)), active: StreamData.boolean()}
}

Summary

Functions

gen(schema)

Generates a stream of data based on the given schema type.

Functions

Link to this function

gen(schema)

View Source

Generates a stream of data based on the given schema type.

This function provides various clauses to handle different types and constraints defined in Peri schemas. It uses StreamData to generate streams of random data conforming to the specified types and constraints.

Parameters

  • schema: The schema type to generate data for. It can be a simple type like :integer, :string, etc., or a complex type with constraints like {:integer, {:gte, 18}}.

Returns

  • A StreamData generator stream for the specified schema type.

Examples 

iex> Peri.Generatable.gen(:atom)
%StreamData{type: :atom, data: ...}

iex> Peri.Generatable.gen(:string)
%StreamData{type: :string, data: ...}

iex> Peri.Generatable.gen(:integer)
%StreamData{type: :integer, data: ...}

iex> Peri.Generatable.gen({:enum, [:admin, :user, :guest]})
%StreamData{type: :one_of, data: ...}

iex> Peri.Generatable.gen({:list, :integer})
%StreamData{type: :list_of, data: ...}

iex> Peri.Generatable.gen({:tuple, [:string, :integer]})
%StreamData{type: :tuple, data: ...}

iex> Peri.Generatable.gen({:integer, {:gt, 10}})
%StreamData{type: :filter, data: ...}

iex> Peri.Generatable.gen({:string, {:regex, ~r/^[a-z]+$/}})
%StreamData{type: :filter, data: ...}

iex> Peri.Generatable.gen({:either, {:integer, :string}})
%StreamData{type: :one_of, data: ...}

iex> Peri.Generatable.gen({:custom, {MyModule, :my_fun}})
%StreamData{type: :filter, data: ...}

iex> schema = %{name: :string, age: {:integer, {:gte, 18}}}
iex> Peri.Generatable.gen(schema)
%StreamData{type: :fixed_map, data: ...}