Added command to test for race conditions (#586)

Co-authored-by: James Hunt <jameshunt@microsoft.com>
microsoft · May 15, 2023 · bfca3b8 · bfca3b8
1 parent 07ab6e9
commit bfca3b8
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Showing 2 changed files with 14 additions and 1 deletion.
diff --git a/packages/live-share/package.json b/packages/live-share/package.json
@@ -11,7 +11,8 @@
  "build": "tsc -p tsconfig.build.json",
  "test": "ts-mocha --config ./src/test/.mocharc.js src/**/*.spec.ts --timeout 10000",
  "test:debug": "ts-mocha --config ./src/test/.mocharc.js src/**/*.spec.ts --inspect-brk",
- "test:coverage": "nyc --reporter=html --reporter=text --reporter=text-summary npm test"
+ "test:coverage": "nyc --reporter=html --reporter=text --reporter=text-summary npm test",
+ "test:race": "node test-for-race-conditions.js"
  },
  "dependencies": {
  "uuid": "^9.0.0"

diff --git a/packages/live-share/test-for-race-conditions.js b/packages/live-share/test-for-race-conditions.js
@@ -0,0 +1,12 @@
+/**
+ * This file runs tests 50 times or until failure, and is intended to be used to find race conditions, or validate that they do not exist.
+ */
+
+const execSync = require("child_process").execSync;
+
+for (var i = 0; i < 50; i++) {
+ console.log("starting run:", i);
+ const output = execSync("npm run test", { encoding: "utf-8" });
+ console.log("Output was:\n", output);
+ console.log("finished run:", i);
+}