Module: Minitest::Rails::Expectations::ActiveSupport

Included in:
Object
Defined in:
lib/minitest/rails/expectations/active_support.rb

Instance Method Summary collapse

Instance Method Details

#assert_changes ⇒ Object

Assertion that the result of evaluating an expression is changed before and after invoking the passed in block.

value { User.create password: "valid" }.must_change "User.count"
value { 3.times do
          User.create password: "valid"
        end }.must_change "User.count", from: 5, to: 8

See also ActiveSupport::TestCase#assert_difference See api.rubyonrails.org/v7.1/classes/ActiveSupport/Testing/Assertions.html#method-i-assert_changes

:method: must_change :args: expression, from: UNTRACKED, to: UNTRACKED



19
 
# File 'lib/minitest/rails/expectations/active_support.rb', line 19

infect_an_assertion :assert_changes, :must_change, :block

#assert_difference ⇒ Object

Test numeric difference between the return value of an expression as a result of what is evaluated.

value { User.create password: "valid" }.must_differ "User.count"
value { 3.times do
          User.create password: "valid"
        end }.must_differ "User.count", 3

See also ActiveSupport::TestCase#assert_difference See api.rubyonrails.org/v7.1/classes/ActiveSupport/Testing/Assertions.html#method-i-assert_difference

:method: must_differ :args: expression, *args



50
 
# File 'lib/minitest/rails/expectations/active_support.rb', line 50

infect_an_assertion :assert_difference, :must_differ, :block

#refute_changes ⇒ Object

Assertion that the result of evaluating an expression is not changed before and after invoking the passed in block.

refute_changes "Status.all_good?" do
  post :create, params: { status: { ok: true } }
end

See also ActiveSupport::TestCase#assert_difference See api.rubyonrails.org/v7.1/classes/ActiveSupport/Testing/Assertions.html#method-i-assert_no_changes

:method: wont_change :args: expression



34
 
# File 'lib/minitest/rails/expectations/active_support.rb', line 34

infect_an_assertion :refute_changes, :wont_change, :block

#refute_difference ⇒ Object

Assertion that the numeric result of evaluating an expression is not changed before and after invoking.

value { User.new }.wont_differ "User.count"

See also ActiveSupport::TestCase#refute_difference See api.rubyonrails.org/v7.1/classes/ActiveSupport/Testing/Assertions.html#method-i-assert_no_difference

:method: wont_differ :args: expression



63
 
# File 'lib/minitest/rails/expectations/active_support.rb', line 63

infect_an_assertion :refute_difference, :wont_differ, :block