1 files changed, 58 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..67ec7d20da
--- /dev/null
+++ b/js/src/jit-test/tests/gc/gcparam.js
@@ -0,0 +1,58 @@
+gczeal(0);
+
+function testGetParam(key) {
+    gcparam(key);
+}
+
+function testChangeParam(key) {
+    let prev = gcparam(key);
+    let value = prev - 1;
+    try {
+        gcparam(key, value);
+        assertEq(gcparam(key), value);
+        gcparam(key, prev);
+        assertEq(gcparam(key), prev);
+    } catch {
+        assertEq(gcparam(key), prev);
+    }
+}
+
+function testMBParamValue(key) {
+    let prev = gcparam(key);
+    const value = 1024;
+    try {
+        gcparam(key, value);
+        assertEq(gcparam(key), value);
+    } catch {
+        assertEq(gcparam(key), prev);
+    }
+    gcparam(key, prev);
+}
+
+testGetParam("gcBytes");
+testGetParam("gcNumber");
+testGetParam("unusedChunks");
+testGetParam("totalChunks");
+
+testChangeParam("maxBytes");
+testChangeParam("incrementalGCEnabled");
+testChangeParam("perZoneGCEnabled");
+testChangeParam("sliceTimeBudgetMS");
+testChangeParam("markStackLimit");
+testChangeParam("highFrequencyTimeLimit");
+testChangeParam("smallHeapSizeMax");
+testChangeParam("largeHeapSizeMin");
+testChangeParam("highFrequencySmallHeapGrowth");
+testChangeParam("highFrequencyLargeHeapGrowth");
+testChangeParam("lowFrequencyHeapGrowth");
+testChangeParam("allocationThreshold");
+testChangeParam("smallHeapIncrementalLimit");
+testChangeParam("largeHeapIncrementalLimit");
+testChangeParam("minEmptyChunkCount");
+testChangeParam("maxEmptyChunkCount");
+testChangeParam("compactingEnabled");
+testChangeParam("mallocThresholdBase");
+testChangeParam("mallocGrowthFactor");
+
+testMBParamValue("smallHeapSizeMax");
+testMBParamValue("largeHeapSizeMin");