Certify alpha7 compatibility candidates

ruby/exact_live_contract.rb

@@ -0,0 +1,33 @@
+# frozen_string_literal: true
+
+module OpenCodeCompat
+  module ExactLiveContract
+    class ContractError < StandardError; end
+
+    module_function
+
+    def assert_final_text!(actual, expected)
+      return if actual == expected
+
+      raise ContractError, "Expected final text to equal #{expected.inspect}, got #{actual.inspect}"
+    end
+
+    def assert_model_request_count!(value)
+      count = Integer(value, 10)
+      return if count == 1
+
+      raise ContractError, "Expected exactly one deterministic model request, got #{count}"
+    rescue ArgumentError, TypeError
+      raise ContractError, "Deterministic model request count is not an integer: #{value.inspect}"
+    end
+  end
+end
+
+if $PROGRAM_NAME == __FILE__
+  begin
+    OpenCodeCompat::ExactLiveContract.assert_model_request_count!(ARGV.fetch(0))
+  rescue IndexError, OpenCodeCompat::ExactLiveContract::ContractError => error
+    warn error.message
+    exit 1
+  end
+end