Comparation of String and Integer throws an exception with slightly different error message but in MRI

[deepj]

There is a slight difference in exception message while comparating String and Integer between TruffleRuby and MRI.

TruffleRuby: #<ArgumentError: comparison of String with Integer>
MRI: #<ArgumentError: comparison of String with 23 failed>

This difference in TruffleRuby causes 20 failing specs in dry-schema specs where there is the following expectation

expect { result }.to raise_error(ArgumentError, 'comparison of String with 23 failed')

Then error is:

expected ArgumentError with "comparison of String with 23 failed", got #<ArgumentError: comparison of String with Integer> with backtrace:
  # ~/.gem/truffleruby/2.6.5/gems/dry-logic-1.0.6/lib/dry/logic/predicates.rb:104:in `>'
  # ~/.gem/truffleruby/2.6.5/gems/dry-logic-1.0.6/lib/dry/logic/predicates.rb:104:in `gt?'
  # ~/.gem/truffleruby/2.6.5/gems/dry-logic-1.0.6/lib/dry/logic/predicates.rb:108:in `lteq?'
  # ~/.gem/truffleruby/2.6.5/gems/dry-logic-1.0.6/lib/dry/logic/rule/interface.rb:123:in `[]'
  # ~/.gem/truffleruby/2.6.5/gems/dry-logic-1.0.6/lib/dry/logic/rule/interface.rb:123:in `call'
  # ~/.gem/truffleruby/2.6.5/gems/dry-logic-1.0.6/lib/dry/logic/operations/key.rb:41:in `call'
  # ~/.gem/truffleruby/2.6.5/gems/dry-logic-1.0.6/lib/dry/logic/operations/implication.rb:22:in `call'
  # ./lib/dry/schema/rule_applier.rb:36:in `block in call'
  # ./lib/dry/schema/rule_applier.rb:33:in `each'
  # ./lib/dry/schema/rule_applier.rb:33:in `call'
  # ./lib/dry/schema/processor_steps.rb:96:in `process_step'
  # ./lib/dry/schema/processor_steps.rb:39:in `block in call'
  # ./lib/dry/schema/processor_steps.rb:37:in `each'
  # ./lib/dry/schema/processor_steps.rb:37:in `call'
  # ./lib/dry/schema/processor.rb:88:in `block in call'
  # ./lib/dry/schema/result.rb:37:in `new'
  # ./lib/dry/schema/processor.rb:87:in `call'
  # ./spec/support/predicates_integration.rb:7:in `result'
  # ./spec/integration/schema/predicates/lteq_spec.rb:103:in `block (5 levels) in <top (required)>'
  # ./spec/integration/schema/predicates/lteq_spec.rb:103:in `block (4 levels) in <top (required)>'
# ./spec/integration/schema/predicates/lteq_spec.rb:103:in `block (4 levels) in <top (required)>'

[eregon]

Thanks for the report, we should try to match MRI here, even more so since the message seems clearer.

[bjfish]

This is now fixed at 1afbac7.