To add a collaborator to this project you will need to use the Relish gem to add the collaborator via a terminal command. Soon you'll be able to also add collaborators here!
More about adding a collaborator`all` matcher
Use the all
matcher to specify that a collection's objects all pass an expected matcher. This works on any enumerable object.
expect([1, 3, 5]).to all( be_odd )
expect([1, 3, 5]).to all( be_an(Integer) )
expect([1, 3, 5]).to all( be < 10 )
expect([1, 3, 4]).to all( be_odd ) # fails
The matcher also supports compound matchers:
expect([1, 3, 5]).to all( be_odd.and be < 10 )
expect([1, 4, 21]).to all( be_odd.or be < 10 )
If you are looking for "any" member of a collection that passes an expectation, look at the include
-matcher.
- Scenarios
-
- array usage
-
- Given
-
a file named "array_all_matcher_spec.rb" with:
RSpec.describe [1, 3, 5] do it { is_expected.to all( be_odd ) } it { is_expected.to all( be_an(Integer) ) } it { is_expected.to all( be < 10 ) } # deliberate failures it { is_expected.to all( be_even ) } it { is_expected.to all( be_a(String) ) } it { is_expected.to all( be > 2 ) } end
- When
-
I run
rspec array_all_matcher_spec.rb
- Then
-
the output should contain all of these:
6 examples, 3 failures expected [1, 3, 5] to all be even expected [1, 3, 5] to all be a kind of String expected [1, 3, 5] to all be > 2
- compound matcher usage
-
- Given
-
a file named "compound_all_matcher_spec.rb" with:
RSpec.describe ['anything', 'everything', 'something'] do it { is_expected.to all( be_a(String).and include("thing") ) } it { is_expected.to all( be_a(String).and end_with("g") ) } it { is_expected.to all( start_with("s").or include("y") ) } # deliberate failures it { is_expected.to all( include("foo").and include("bar") ) } it { is_expected.to all( be_a(String).and start_with("a") ) } it { is_expected.to all( start_with("a").or include("z") ) } end
- When
-
I run
rspec compound_all_matcher_spec.rb
- Then
-
the output should contain all of these:
6 examples, 3 failures expected ["anything", "everything", "something"] to all include "foo" and include "bar" expected ["anything", "everything", "something"] to all be a kind of String and start with "a" expected ["anything", "everything", "something"] to all start with "a" or include "z"
Last published 9 months ago by Jon Rowe.