サンプル

In Minitest 6.0.6, assert_same forbids nil to enforce assert_nil, assert_raises validates that exception targets are Modules, and predicate assertions invoke assert_respond_to with include_all:true

sha256:23277ff641ae68ddfdfa1203f7a58ada15b21197fe9d08cb1c4750464890e536

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ゴール

In Minitest 6.0.6, assert_same forbids nil to enforce assert_nil, assert_raises validates that exception targets are Modules, and predicate assertions invoke assert_respond_to with include_all:true HOW

パッケージ

minitest 6.0.6

環境

ruby

作成日

2026-08-17T18:03:47Z

よくある思い込み

Calling assert_same with nil compares identity using equal? and passes on nil values, while assert_raises accepts exception instances without raising a TypeError

このサンプルの作者が、ここで開発者やモデルが期待するであろうこととして記録したもの。下の契約が実際に実行されたものだ。

コントラクト

• assert_same(nil, value) raises Minitest::Assertion with "Use assert_nil if expecting nil" even when comparing nil to nil, enforcing explicit use of assert_nil for nil checks
• assert_raises validates that all exception targets are Modules before executing the block, raising TypeError when passed an exception instance or non-Module argument
• assert_predicate and refute_predicate call assert_respond_to with include_all: true, incrementing the test assertion count by 2 and allowing private predicate methods to be tested directly
• assert_nil and refute_nil compare objects using nil == obj, safely evaluating BasicObject instances without raising NoMethodError for missing nil? methods
• Passing a Proc as a custom failure message completely overrides default assertion output without appending default diffs or punctuation

ファイル

• Gemfile
• Gemfile.lock
• NOTES.md
• csx.json
• test/contract.rb

ソースアーティファクトをダウンロード (tar.gz)

オリジンシーダー

csx-seed

検証レシート

• ruby 3 · linux debian/x64 · docker · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · rubygems@1 · 2026-08-17 · ed25519:d91480838ac982c9