First tests for GCIdleTimeHandler.

First tests for GCIdleTimeHandler.

BUG=
R=hpayer@chromium.org

Committed: https://code.google.com/p/v8/source/detail?r=23316

[ulan, 2014-08-22 11:01:03]

PTAL. More tests will follow.

[Hannes Payer (out of office), 2014-08-22 11:06:30]

https://codereview.chromium.org/496273002/diff/1/test/heap-unittests/heap-uni...
File test/heap-unittests/heap-unittest.h (right):

https://codereview.chromium.org/496273002/diff/1/test/heap-unittests/heap-uni...
test/heap-unittests/heap-unittest.h:21: GCIdleTimeHandler::HeapState
initial_heap_state() {
Can we make a method InitializeHeapState that takes all possible configurations
as parameter? And call this function DefaultHeapState that calls
InitializeHeapState with the given default values.

[Hannes Payer (out of office), 2014-08-22 12:54:59]

https://codereview.chromium.org/496273002/diff/20001/test/heap-unittests/heap...
File test/heap-unittests/heap-unittest.cc (right):

https://codereview.chromium.org/496273002/diff/20001/test/heap-unittests/heap...
test/heap-unittests/heap-unittest.cc:144: for (int i = 0; i < 100; i++) {
Instead of 100, can we use the expected value to test proper behavior. If
heuristics change, the tests have to be updated.

[Hannes Payer (out of office), 2014-08-22 12:55:24]

lgtm

[ulan, 2014-08-22 13:26:37]

Committed patchset #4 manually as 23316 (presubmit successful).