MoreStreamData

Additional generators based on StreamData.

Installation

Add more_stream_data to your list of dependencies in mix.exs

def deps do
  [
    {:more_stream_data, "~> 0.3", only: :test}
  ]
end

Refer to StreamData documentation for usage.

You can call additional generators directly in any testfile

defmodule MyTestMoule do
  use ExUnit.Case
  use ExUnitProperties

  property "generates numbers greater than or equal to the minimum" do
    check all number <- MoreStreamData.more_integer(min: 10) do
      assert number >= 10
    end
  end
end

Roadmap

The goal is to port Python's Hypothesis built-in and external strategies considered useful for Elixir ecosystem.

• Strategies
  • integers
  • floats
    • exclude_min and exclude_max options.
  • decimal
  • emails
  • domains
  • urls
  • datetime
  • time
  • timedeltas
  • ip_address
  • from_regex
    • Newline setting (*ANYCRLF), (*NUL), etc.
    • \b word boundary
    • xHH and x{HHH...} for hex characters
    • Atomic groups: Always matches the first option
    • Lookarounds
      • Positive lookahead
      • Negative lookahead
      • Positive lookbehind
      • Negative lookbehind
    • Modifiers
      • Case insensitive /i
      • Extended /x
      • Unicode /u
      • Dotall /s
      • Multiline /m
      • Firstline /f
      • Ungreedy /U. Ignored since it does not affect string generation.
      • Export /E. Ignored since it does not affect string generation.