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Contents
@ruby-1.9
Feature: `cover` matcher
Use the `cover` matcher to specify that a range covers one or more
expected objects. This works on any object that responds to `#cover?`
(such as a `Range`):
```ruby
expect(1..10).to cover(5)
expect(1..10).to cover(4, 6)
expect(1..10).not_to cover(11)
```
Scenario: range usage
Given a file named "range_cover_matcher_spec.rb" with:
"""ruby
RSpec.describe (1..10) do
it { is_expected.to cover(4) }
it { is_expected.to cover(6) }
it { is_expected.to cover(8) }
it { is_expected.to cover(4, 6) }
it { is_expected.to cover(4, 6, 8) }
it { is_expected.not_to cover(11) }
it { is_expected.not_to cover(11, 12) }
# deliberate failures
it { is_expected.to cover(11) }
it { is_expected.not_to cover(4) }
it { is_expected.not_to cover(6) }
it { is_expected.not_to cover(8) }
it { is_expected.not_to cover(4, 6, 8) }
# both of these should fail since it covers 5 but not 11
it { is_expected.to cover(5, 11) }
it { is_expected.not_to cover(5, 11) }
end
"""
When I run `rspec range_cover_matcher_spec.rb`
Then the output should contain all of these:
| 14 examples, 7 failures |
| expected 1..10 to cover 11 |
| expected 1..10 not to cover 4 |
| expected 1..10 not to cover 6 |
| expected 1..10 not to cover 8 |
| expected 1..10 not to cover 4, 6, and 8 |
| expected 1..10 to cover 5 and 11 |
| expected 1..10 not to cover 5 and 11 |
Version data entries
5 entries across 5 versions & 1 rubygems