1 files changed, 47 insertions, 0 deletions
diff --git a/tests/lib/mocha-3.1.0/test/integration/fixtures/regression/issue-1991.fixture.js b/tests/lib/mocha-3.1.0/test/integration/fixtures/regression/issue-1991.fixture.js
new file mode 100644
index 0000000000..96860332a2
--- /dev/null
+++ b/tests/lib/mocha-3.1.0/test/integration/fixtures/regression/issue-1991.fixture.js
@@ -0,0 +1,47 @@
+function MemoryLeak() {
+  this.myArr = [];
+  for (var i = 0; i < 1000000; i++) {
+    this.myArr.push(i)
+  }
+}
+
+var numOfTests = 300;
+for (var i = 0; i < numOfTests; i += 1) {
+  /*
+   * This Test suite will crash V8 due to:
+   * 'FATAL ERROR: CALL_AND_RETRY_LAST Allocation failed - process out of memory'
+   * if all the deferred functions references have not been cleared
+   */
+  describe('Memory Leak Suite #' + i, function () {
+
+    // The <closureVar> variable will be accessed by the test below.
+    // As long as those test's functions are
+    // referenced in memory, the closure variable may not be garbage collected
+    // as it is still referenced.
+    // * In a chrome heap snapshot it will appear under "system / Context" (a scope)
+    var closureVar;
+
+    before(function () {
+      var x = closureVar ? 1 : 2
+    });
+
+    after(function () {
+      var x = closureVar[0]
+    });
+
+    beforeEach(function () {
+      var x = closureVar ? 1 : 2
+    });
+
+    afterEach(function () {
+      var x = closureVar[0]
+    });
+
+    it('access a variable via a closure', function () {
+      // slow performance on older node.js versions
+      this.timeout(1000);
+      closureVar = new MemoryLeak();
+    });
+
+  });
+}