test: increase RAM requirement for intensive tests

test-fs-read-buffer-tostring-fail and test-fs-readfile-tostring-fail have been timing out on Raspberry Pi 3 devices on the continuous integration server. These devices have 1 Gb of RAM and the tests are memory intensive. Previous checks for memory intensive tests used a 512 Mb cut-off, but that was probably instituted when we only had Pi 1 devices. Consequently, this change increases the threshold for memory-intensive tests to 1 Gb and adds that threshold to test-fs-readfile-tostring-fail. PR-URL: nodejs#7772 Reviewed-By: Ben Noordhuis <[email protected]> Reviewed-By: Colin Ihrig <[email protected]> Reviewed-By: Santiago Gimeno <[email protected]> Reviewed-By: Michael Dawson <[email protected]>
cjihrig · Jul 20, 2016 · 135a863 · 135a863
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diff --git a/test/common.js b/test/common.js
@@ -27,7 +27,7 @@ exports.isLinuxPPCBE = (process.platform === 'linux') &&
 exports.isSunOS = process.platform === 'sunos';
 exports.isFreeBSD = process.platform === 'freebsd';
 
-exports.enoughTestMem = os.totalmem() > 0x20000000; /* 512MB */
+exports.enoughTestMem = os.totalmem() > 0x40000000; /* 1 Gb */
 exports.rootDir = exports.isWindows ? 'c:\\' : '/';
 
 function rimrafSync(p) {

diff --git a/test/parallel/test-fs-readfile-tostring-fail.js b/test/parallel/test-fs-readfile-tostring-fail.js
@@ -1,6 +1,13 @@
 'use strict';
 
 const common = require('../common');
+
+if (!common.enoughTestMem) {
+  const skipMessage = 'intensive toString tests due to memory confinements';
+  common.skip(skipMessage);
+  return;
+}
+
 const assert = require('assert');
 const fs = require('fs');
 const path = require('path');