Use of one-dimension arrays comparison & `contain_exactly` RSpec matcher
to avoid this behaviour:
Failures:
1) InstructeursImportService#import when an email is malformed ignores or corrects
Failure/Error:
expect(procedure_groupes).to match_array([
["Occitanie", ["paul@mccartney.uk", "ringo@starr.uk"]],
["défaut", []]
])
expected collection contained: [["Occitanie", ["paul@mccartney.uk", "ringo@starr.uk"]], ["défaut", []]]
actual collection contained: [["Occitanie", ["ringo@starr.uk", "paul@mccartney.uk"]], ["défaut", []]]
the missing elements were: [["Occitanie", ["paul@mccartney.uk", "ringo@starr.uk"]]]
the extra elements were: [["Occitanie", ["ringo@starr.uk", "paul@mccartney.uk"]]]
# ./spec/services/instructeurs_import_service_spec.rb:70:in `block (4 levels) in <main>'
