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Latest Release
1862 days ago

Changelog History

  • v0.7.0 Changes

    April 22, 2019

    ๐Ÿš€ This release adds the new stub syntax which is a great improvement over the old double/allow syntax. stub combines both into one function now:

    dbl = ModuleOrBehavior
    |> stub(:function_name, fn(x) -> x end)
    |> stub(:another_function, fn(x) -> x end)
    assert_receive({ModuleOrBehavior, :function_name, ["hello"]})

    You'll notice that the message now contains the module or behavior atom that the stub is built against. This prevents conflicts w/ function names between different modules and is another improvement that the stub syntax provides.

    ๐Ÿ—„ The old double/allow syntax is no longer documented, but isn't marked as deprecated yet. We may consider that in the future, or maybe even dropping support for it in version 1.0.

    ๐Ÿ“„ For more details on the new syntax, please read the docs!

  • v0.6.6 Changes

    February 06, 2019

    ๐Ÿš€ This release includes fixes to prevent conflicts with auto imported functions from Kernel. Thanks to @JonRowe for the contribution!

  • v0.6.5 Changes

    May 18, 2018

    ๐Ÿ“š This is only a documentation update.

  • v0.6.4 Changes

    January 21, 2018

    ๐Ÿ›  Fixes warnings for Elixir 1.6 and applies new built-in code formatter. Credit to @take-five

  • v0.6.3 Changes

    October 07, 2017

    ๐Ÿš€ This release includes a fix for the typespec on allow/3.

  • v0.6.2 Changes

    August 19, 2017

    ๐Ÿš€ This release fixes an issue with verifications on module based doubles that have macros. Macros can now be stubbed whereas they would have thrown a verification error before.

    For example, is a macro that you can now stub and it will be properly verified.

    logger_stub = Logger
    |> double()
    |> allow(:info, fn(_msg) -> :ok end)
  • v0.6.1 Changes

    July 27, 2017

    ๐Ÿš€ This release will start essential Double services as part of an OTP application. This should help with with intermittent errors with starting and stopping services. Thanks @take-five!

  • v0.6.0 Changes

    June 21, 2017

    Clearing Stubbed Functions

    Occasionally it's useful to clear the stubs for an existing double. This is useful when you have
    โœ… a shared setup and a test needs to change the way a double is stubbed without recreating the whole thing.

    stub = IO|\> double|\> allow(:puts, fn(\_) -\> :ok end)|\> allow(:inspect, fn(\_) -\> :ok end)# laterstub |\> clear(:puts) # clear an individual functionstub |\> clear([:puts, :inspect]) # clear a list of functionsstub |\> clear() # clear all functions
  • v0.5.1 Changes

    June 21, 2017

    ๐Ÿš€ Prevents module conflict warnings from leaking. It has been observed that occasionally a module conflict warning would leak into test output. This is likely due to concurrent evaluations and the global nature of the setting to ignore those warnings. This release puts that evaluation in a single GenServer to ensure that only one evaluation takes place at a time.

  • v0.5.0 Changes

    June 21, 2017

    Behaviour Doubles

    Now a module defining a behaviour can be used as the source of a double. The callbacks will be used in the set of functions verified for proper function name and arity when stubbing.

    defmodule TestBehaviour do
      @callback process(String.t) :: :ok
    test "example behaviour stubbing" do
      process_stub = TestBehaviour
      |> double
      |> allow(:process, fn(_arg1) -> :ok end) # This will work fine
      |> allow(:boom, fn -> :ok end) # This will throw a VerifyingDoubleError because it's not defined.

    Stubbing against a behaviour may be especially useful when working in a project where the behaviour implementation should be a client concern and you don't have a concrete module to stub against.