be_true and be_false were removed form RSpec 3.
Don't use be_true to check if a value is true. It actually checks if it anything other than nil or false. That's why it has been
renamed to be_truthy in recent RSpec versions
Show archive.org snapshot
.
The same thing holds for be_false, which actually checks if a value is not "truthy".
If you want to check for true or false in RSpec 2, write this instead:
value.should == true
value.should == false
If you want to check for true or false in RSpec 3+, write this instead:
expect(value).to eq(true)
expect(value).to eq(false)
See also
Posted by Henning Koch to makandra dev (2016-01-28 10:38)