[cmiles74]

The code might even have been outsourced. I'm not trying to disparage outsourced developers, I know what I might do if the user story was something like "Needs to pass emissions when attached to test system."

[asolove]

"As an emissions test, I want to pass the car."

[hydrogen18]

In that case it would probably be "The system shall pass all emissions tests"

[tonyarkles]

Under all conditions? Under normal conditions? Low-temperature? High-temperature? At 10,000 feet? Only when attached to the test harness?

[paulajohnson]

Actually the usual form for this kind of requirement would be "The system shall comply with <emission regulation>".

[jsprogrammer]

It shouldn't matter. Another test process should have caught incorrect code. The car should be tested to the specs and the specs should reflect the regulations.