1066388 - Something in B2G emulator is dividing a TimeDuration by a zero TimeDuration

Status: RESOLVED WONTFIX

(Firefox OS Graveyard :: General, defect)

Description

[Brian Birtles (:birtles)]

In bug 1039924 I've been tightening up our handling of TimeDurations where the time might be set to 'Forever' (representing an infinite time).

As part of that work I went to add an assertion to the following method:

  double
  TimeDuration::operator/(const TimeDuration& aOther) const

that simply checks that the denominator is not zero:

  MOZ_ASSERT(aOther.mValue != 0, "Division by zero");

However, this assertion fails in every single mochitest chunk on B2G ICS Emulator Debug

  https://tbpl.mozilla.org/?tree=Try&rev=e5305b1927d1

I've spent about two days trying to get mochitests to run on an emulator build but without success (I managed it about 6 months ago, again, after about 2 days of fiddling and asking people, but things have changed since then and it no longer works). So I have no idea what is tickling this assertion. I'm just going to turn off that assertion for B2G until someone can help me get mochitests running on an emulator build.