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Contents
Feature: `have_attributes` matcher
Use the have_attributes matcher to specify that
an object's attributes match the expected attributes:
```ruby
Person = Struct.new(:name, :age)
person = Person.new("Jim", 32)
expect(person).to have_attributes(:name => "Jim", :age => 32)
expect(person).to have_attributes(:name => a_string_starting_with("J"), :age => (a_value > 30) )
```
The matcher will fail if actual doesn't respond to any of the expected attributes:
```ruby
expect(person).to have_attributes(:name => "Jim", :color => 'red')
```
Scenario: basic usage
Given a file named "basic_have_attributes_matcher_spec.rb" with:
"""ruby
Person = Struct.new(:name, :age)
RSpec.describe Person.new("Jim", 32) do
it { is_expected.to have_attributes(:name => "Jim") }
it { is_expected.to have_attributes(:name => a_string_starting_with("J") ) }
it { is_expected.to have_attributes(:age => 32) }
it { is_expected.to have_attributes(:age => (a_value > 30) ) }
it { is_expected.to have_attributes(:name => "Jim", :age => 32) }
it { is_expected.to have_attributes(:name => a_string_starting_with("J"), :age => (a_value > 30) ) }
it { is_expected.not_to have_attributes(:name => "Bob") }
it { is_expected.not_to have_attributes(:age => 10) }
it { is_expected.not_to have_attributes(:age => (a_value < 30) ) }
# deliberate failures
it { is_expected.to have_attributes(:name => "Bob") }
it { is_expected.to have_attributes(:age => 10) }
# fails if any of the attributes don't match
it { is_expected.to have_attributes(:name => "Bob", :age => 32) }
it { is_expected.to have_attributes(:name => "Jim", :age => 10) }
it { is_expected.to have_attributes(:name => "Bob", :age => 10) }
end
"""
When I run `rspec basic_have_attributes_matcher_spec.rb`
Then the output should contain "14 examples, 5 failures"
Version data entries
7 entries across 7 versions & 1 rubygems