test: move long-running test to sequential

test-buffer-creation-regression is flaky on some SmartOS hosts in CI, timing out. Move to sequential so it does not compete with other tests for resources. Reduce three test cases to just the one needed to identify the regression. PR-URL: #10161 Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Italo A. Casas <me@italoacasas.com>
nodejs · thefourtheye · Nov 27, 2016 · Dec 7, 2016 · Feb 5, 2017 · b878aeb4cd153c458f5cc0463bca6de5a05510a0
commit b878aeb4cd153c458f5cc0463bca6de5a05510a0
diff --git a/test/parallel/test-buffer-creation-regression.js b/test/parallel/test-buffer-creation-regression.js
diff --git a/test/sequential/test-buffer-creation-regression.js b/test/sequential/test-buffer-creation-regression.js
@@ -0,0 +1,36 @@
+'use strict';
+
+const common = require('../common');
+const assert = require('assert');
+
+function test(arrayBuffer, offset, length) {
+  const uint8Array = new Uint8Array(arrayBuffer, offset, length);
+  for (let i = 0; i < length; i += 1) {
+    uint8Array[i] = 1;
+  }
+
+  const buffer = Buffer.from(arrayBuffer, offset, length);
+  for (let i = 0; i < length; i += 1) {
+    assert.strictEqual(buffer[i], 1);
+  }
+}
+
+const acceptableOOMErrors = [
+  'Array buffer allocation failed',
+  'Invalid array buffer length'
+];
+
+const size = 8589934592; /* 1 << 33 */
+const offset = 4294967296; /* 1 << 32 */
+const length = 1000;
+let arrayBuffer;
+
+try {
+  arrayBuffer = new ArrayBuffer(size);
+} catch (e) {
+  if (e instanceof RangeError && acceptableOOMErrors.includes(e.message))
+    return common.skip(`Unable to allocate ${size} bytes for ArrayBuffer`);
+  throw e;
+}
+
+test(arrayBuffer, offset, length);