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Changelog

3.0.0 (unreleased)

This release removes numerous deprecated APIs. We recommend to upgrade to ~> 2.5 first and resolve any deprecation warnings before updating to v3.

  • Extracted Mockery.Macro to separate library. For compatibility with Mockery v2, update your mix.exs dependencies:

    def deps do
  [
    {:mockery_macro, "~> 1.0", runtime: false},
    {:mockery, "~> 3.0", only: [:dev, :test]}
  ]
end

    and your .formatter.exs:

    [
  inputs: ["mix.exs", "{config,lib,test}/**/*.{ex,exs}"],
  import_deps: [:mockery, :mockery_macro]
]

  • Mockery no longer relies on Mix.env(). To enable Mockery in tests, update config in your project:

    # config/test.exs
config :mockery, enable: true

  • Mockery.History (extended failure output for macros from Mockery.Assertions) is now enabled by default. To disable it, update config in your project:

    # config/test.exs
config :mockery, history: false

  • Removed deprecated functions:

    • Mockery.of/2
    • Mockery.new/2
    • Mockery.History.enable_history/1
    • Mockery.Assertions.assert_called/2
    • Mockery.Assertions.assert_called/3
    • Mockery.Assertions.assert_called/4
    • Mockery.Assertions.refute_called/2
    • Mockery.Assertions.refute_called/3
    • Mockery.Assertions.refute_called/4

2.5.0 (2025-09-24)

  • This release requires Elixir ~> 1.15

  • use Mockery.Macro won't inject unnecessary code when :mockery isn't enabled in config

  • Added :suppress_dialyzer_warnings option to use Mockery.Macro, see documentation for details

  • Added Mockery.Assertions.assert_called!/3 and Mockery.Assertions.refute_called!/3

    • New macros produce improved failure output.

  • Deprecated Mockery.Assertions.assert_called/2, Mockery.Assertions.assert_called/3, Mockery.Assertions.assert_called/4, Mockery.Assertions.refute_called/2, Mockery.Assertions.refute_called/3 and Mockery.Assertions.refute_called/4

    • Use Mockery.Assertions.assert_called!/3 and Mockery.Assertions.refute_called!/3 instead
    • Deprecation warnings include a suggested replacement showing the expected syntax (the suggestion is generated from the deprecated call). Note: the suggestion is best-effort and may not exactly match your current code — verify and adjust as needed.

  • Improved Mockery.mock/3

    • Added typespecs.
    • It will now raise immediately if the mocked function does not exist. Previously, Mockery.Error was raised from the proxy module.
    • It will now raise immediately if a dynamic mock has an invalid arity. Previously, Mockery.Error was raised from the proxy module.

2.4.1 (2025-09-19)

  • Fix: Deprecation warning for mockable/2 was crashing for Elixir < 1.14

2.4.0 (2025-09-09)

  • Deprecated Mockery.of/2 function.

    • Tuple calls used by this function won't be officially supported in Mockery v3. Users should migrate to the macro-based alternative in Mockery.Macro.

  • Mockery.Macro.mockable/2 based on Mix.env/0 is deprecated.

    • Set config :mockery, enable: true in config/test.exs and recompile your project.

  • Added Mockery.Macro.defmock/2 and Mockery.Macro.defmock/3 macros

  • Added macros and functions from Mockery.Assertions to locals_without_parens in .formatter.exs

2.3.4 (2025-08-15)

  • Fixed warnings (Elixir 1.18)

2.3.3 (2024-07-04)

  • Added use Mockery.Macro to solve new Elixir warnings

    • Replace import Mockery.Macro by use Mockery.Macro

2.3.2 (2024-07-03)

  • Added missing () to fix warnings

2.3.1 (2019-10-10)

  • Fixed issue preventing module attributes to be used in assert_called macros #34

2.3.0 (2018-10-22)

  • Allowed multiple mocks when using pipe operator or nested calls #27
  • Deprecated Mockery.History.enable_history/1 in favor of Mockery.History.enable_history/0 and Mockery.History.disable_history/0

2.2.0 (2018-06-17)

  • Added Mockery.Macro.mockable/2 macro as alternative way to prepare module for mocking
  • Deprecated Mockery.new/2

2.1.0 (2018-02-19)

  • Added Mockery.new/2
  • Fixed typo in error message #21
  • Removed support for Elixir 1.1 and 1.2

2.0.2 (2017-10-25)

  • Fixed Mockery.of/2 typespecs

2.0.1 (2017-10-13)

  • When Mix is missing, Mockery.of/2 assumes that env is :prod

2.0.0 (2017-10-08)

  • Removed Mockery.Heritage

    • Global mocks will be handled without macros by pure elixir modules.
    • Some new restrictions have been added for global mock modules (see global mock section in README)

  • Changed Mockery.mock/3 when value is function (dynamic mock)

    • [function_name: arity] syntax remains unchanged
    • :function_name syntax will raise error

  • Changed Mockery.of/2 output

    • run mix compile --force when upgrading from Mockery 1.x.x

1.4.0 (2017-10-02)

  • Mockery.mock/2 and Mockery.mock/3 are now chainable

1.3.1 (2017-09-21)

  • Minor format fix in Mockery.History failure messages

1.3.0 (2017-09-15)

  • Added string version for Mockery.of/2 (now recommended)
  • Fixed mocking of erlang modules

1.2.0 (2017-09-13)

  • Introduced Mockery.History

1.1.1 (2017-09-05)

  • More descriptive errors (when args are not list) for:

    • Mockery.Assertions.assert_called/3
    • Mockery.Assertions.refute_called/3
    • Mockery.Assertions.assert_called/4
    • Mockery.Assertions.refute_called/4

  • Removed unnecessary Elixir. namespace from module names in error messages

1.1.0 (2017-08-07)

  • Added Mockery.mock/2 (Mockery.mock/3 value defaults to :mocked)
  • Added Mockery.Assertions.assert_called/4 macro
  • Added Mockery.Assertions.refute_called/4 macro

1.0.1 (2017-08-02)

  • Fixed issue when mocking with nil or false

1.0.0 (2017-07-30)

  • Added use Mockery for importing both Mockery and Mockery.Assertions
  • Added Mockery.Assertions.refute_called/2 and Mockery.Assertions.refute_called/3
  • Loosen elixir version requirement from ~> 1.3 to ~> 1.1