devtools/shared/heapsnapshot/tests/unit/test_HeapSnapshot_takeCensus_03.js


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/* Any copyright is dedicated to the Public Domain.
   http://creativecommons.org/publicdomain/zero/1.0/ */

// HeapSnapshot.prototype.takeCensus behaves plausibly as we add and remove
// debuggees.
//
// Ported from js/src/jit-test/tests/debug/Memory-takeCensus-03.js

function run_test() {
  var dbg = new Debugger;

  var census0 = saveHeapSnapshotAndTakeCensus(dbg);
  Census.walkCensus(census0, "census0", Census.assertAllZeros);

  var g1 = newGlobal();
  dbg.addDebuggee(g1);
  var census1 = saveHeapSnapshotAndTakeCensus(dbg);
  Census.walkCensus(census1, "census1", Census.assertAllNotLessThan(census0));

  var g2 = newGlobal();
  dbg.addDebuggee(g2);
  var census2 = saveHeapSnapshotAndTakeCensus(dbg);
  Census.walkCensus(census2, "census2", Census.assertAllNotLessThan(census1));

  dbg.removeDebuggee(g2);
  var census3 = saveHeapSnapshotAndTakeCensus(dbg);
  Census.walkCensus(census3, "census3", Census.assertAllEqual(census1));

  dbg.removeDebuggee(g1);
  var census4 = saveHeapSnapshotAndTakeCensus(dbg);
  Census.walkCensus(census4, "census4", Census.assertAllEqual(census0));

  do_test_finished();
}