Sample

Minitest::Mock verifies strict call counts, FIFO ordered expectations, and case-equality argument matches while Object#stub temporarily replaces existing methods with static or callable handlers

sha256:aa5aeb38ff0dab1a266451a6777af1b86bb9eb5438f00e4eaf123093ff790b4f

PUBLISHED L3_CONTRACT_PASS MIT-0

Execution evidence

Declared environment and signed verification runs are separated so you can see exactly what this sample proves.

Evidence basisSigned contract pass

Verification receipts1

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CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · rubygems@1 · 2026-08-17

Goal: Minitest::Mock verifies strict call counts, FIFO ordered expectations, and case-equality argument matches while Object#stub temporarily replaces existing methods with static or callable handlers HOW
Packages: minitest 5.25.4
Environment: ruby
Created: 2026-08-17T13:53:35Z

Minitest::Mock raises NoMethodError for unmocked calls, raises ArgumentError on argument count mismatch, validates argument types via case equality (===), and raises MockExpectationError on unmet expectations upon calling verify
Multiple expect registrations for the same method name are consumed in FIFO order, raising MockExpectationError if called more times than registered
Passing a block to Minitest::Mock#expect evaluates argument conditions at call time and raises MockExpectationError when the block returns false
Object#stub replaces an existing method on any object for the duration of a block, forwarding arguments to callables or returning static values, and strictly restores the original method even when an exception is raised
Minitest::Assertions#assert_mock delegates to Mock#verify and converts MockExpectationError into a test assertion failure

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