https://issues.dlang.org/show_bug.cgi?id=15238

Maxim Fomin <mxfomin@gmail.com> changed:

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                 CC|                            |mxfomin@gmail.com

--- Comment #1 from Maxim Fomin <mxfomin@gmail.com> ---
Can you point on example?

I see some pulls fail on FreeBSD with:

--- std.socket(502) test fails depending on environment ---
 (core.exception.AssertError@std/socket.d(504): Assertion failure

Some (old) pulls fail on different platforms with:

****** FAIL release32 std.numeric
core.exception.AssertError@std/numeric.d(1616): unittest failure

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https://issues.dlang.org/show_bug.cgi?id=15238

Vladimir Panteleev <thecybershadow@gmail.com> changed:

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                 CC|                            |thecybershadow@gmail.com

--- Comment #2 from Vladimir Panteleev <thecybershadow@gmail.com> ---
I've seen this a bunch of times. If you read the comment above the failing assert, essentially that entire check is luck-based. That test should be changed to use a RNG seeded with a constant value, or removed entirely.

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https://issues.dlang.org/show_bug.cgi?id=15238

--- Comment #3 from Vladimir Panteleev <thecybershadow@gmail.com> ---
BTW, I'm not sure how intentional this is, but in a lot of places the std.random tests pass the RNG object by-value to e.g. randomSample, which means that it will query the same values over and over without advancing the RNG.

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https://issues.dlang.org/show_bug.cgi?id=15238

--- Comment #4 from Vladimir Panteleev <thecybershadow@gmail.com> ---
https://github.com/D-Programming-Language/phobos/pull/3776

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https://issues.dlang.org/show_bug.cgi?id=15238

github-bugzilla@puremagic.com changed:

           What    |Removed                     |Added
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             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

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https://issues.dlang.org/show_bug.cgi?id=15238

--- Comment #5 from github-bugzilla@puremagic.com ---
Commits pushed to master at https://github.com/D-Programming-Language/phobos

https://github.com/D-Programming-Language/phobos/commit/19b0be7de493c1c167c7a3114c4950f8bc4e63b5 fix Issue 15238 - Heisenbug running std.random unittests

https://github.com/D-Programming-Language/phobos/commit/900e0dd36a92cb4d65301ccf2e98a5f43e52d93e Merge pull request #3776 from CyberShadow/pull-20151027-094401

fix Issue 15238 - Heisenbug running std.random unittests

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https://issues.dlang.org/show_bug.cgi?id=15238

--- Comment #6 from github-bugzilla@puremagic.com ---
Commits pushed to stable at https://github.com/D-Programming-Language/phobos

https://github.com/D-Programming-Language/phobos/commit/19b0be7de493c1c167c7a3114c4950f8bc4e63b5 fix Issue 15238 - Heisenbug running std.random unittests

https://github.com/D-Programming-Language/phobos/commit/900e0dd36a92cb4d65301ccf2e98a5f43e52d93e Merge pull request #3776 from CyberShadow/pull-20151027-094401

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https://issues.dlang.org/show_bug.cgi?id=15238

Walter Bright <bugzilla@digitalmars.com> changed:

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           See Also|                            |https://issues.dlang.org/sh
                   |                            |ow_bug.cgi?id=24134

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