1 files changed, 64 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/gc/gcparam.js b/js/src/jit-test/tests/gc/gcparam.js
new file mode 100644
index 0000000000..a1584fc39b
--- /dev/null
+++ b/js/src/jit-test/tests/gc/gcparam.js
@@ -0,0 +1,64 @@
+gczeal(0);
+
+function testGetParam(key) {
+  gcparam(key);
+}
+
+function testChangeParam(key, diff) {
+  if (!diff) {
+    diff = 1;
+  }
+  
+  let prev = gcparam(key);
+
+  let newValue = prev > 0 ? prev - diff : prev + diff;
+  gcparam(key, newValue);
+  assertEq(gcparam(key), newValue);
+
+  gcparam(key, prev);
+  assertEq(gcparam(key), prev);
+}
+
+testGetParam("gcBytes");
+testGetParam("gcNumber");
+testGetParam("unusedChunks");
+testGetParam("totalChunks");
+testGetParam("nurseryBytes");
+testGetParam("majorGCNumber");
+testGetParam("minorGCNumber");
+testGetParam("chunkBytes");
+testGetParam("helperThreadCount");
+
+testChangeParam("maxBytes");
+testChangeParam("minNurseryBytes", 16 * 1024);
+testChangeParam("maxNurseryBytes", 1024 * 1024);
+testChangeParam("incrementalGCEnabled");
+testChangeParam("perZoneGCEnabled");
+testChangeParam("sliceTimeBudgetMS");
+testChangeParam("highFrequencyTimeLimit");
+testChangeParam("smallHeapSizeMax");
+testChangeParam("largeHeapSizeMin");
+testChangeParam("highFrequencySmallHeapGrowth");
+testChangeParam("highFrequencyLargeHeapGrowth");
+testChangeParam("lowFrequencyHeapGrowth");
+testChangeParam("balancedHeapLimitsEnabled");
+testChangeParam("heapGrowthFactor");
+testChangeParam("allocationThreshold");
+testChangeParam("smallHeapIncrementalLimit");
+testChangeParam("largeHeapIncrementalLimit");
+testChangeParam("minEmptyChunkCount");
+testChangeParam("maxEmptyChunkCount");
+testChangeParam("compactingEnabled");
+testChangeParam("parallelMarkingEnabled");
+testChangeParam("parallelMarkingThresholdKB");
+testChangeParam("minLastDitchGCPeriod");
+testChangeParam("nurseryFreeThresholdForIdleCollection");
+testChangeParam("nurseryFreeThresholdForIdleCollectionPercent");
+testChangeParam("nurseryTimeoutForIdleCollectionMS");
+testChangeParam("pretenureThreshold");
+testChangeParam("zoneAllocDelayKB");
+testChangeParam("mallocThresholdBase");
+testChangeParam("urgentThreshold");
+testChangeParam("nurseryTimeoutForIdleCollectionMS");
+testChangeParam("helperThreadRatio");
+testChangeParam("maxHelperThreads");