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Minitest Change Assertions

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Provides assertions for your Minitest suite to determine if an object has been changed.

Install

gem 'minitest_change_assertions'

Usage

assert_changed

assert_changed 'user.name' do
  user.name = 'Bob'
end

assert_changed -> { user.name } do
  user.name = 'Bob'
end

### OR with optional :to argument

assert_changed 'user.name', to: 'Bob' do
  user.name = 'Bob'
end

assert_changed -> { user.name }, to: 'Bob' do
  user.name = 'Bob'
end

assert_not_changed

assert_not_changed 'user.name' do
  user.update(attrs)
end

assert_not_changed -> { user.name } do
  user.update(attrs)
end

### OR with optional :to argument

assert_not_changed 'user.name', to: 'Allen' do
  user.name = 'Bob'
end

assert_not_changed -> { user.name }, to: 'Allen' do
  user.name = 'Bob'
end

Credits

Created by Weston Ganger - @westonganger

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Provides assertions for your Minitest suite to determine if an object has been changed

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