test: run tests shuffled (#1645)

2 files changed, 9 insertions, 5 deletions

diff --git a/test/mersenne.spec.ts b/test/mersenne.spec.ts
index d495804c..35fd445a 100644
--- a/test/mersenne.spec.ts
+++ b/test/mersenne.spec.ts
@@ -6,11 +6,7 @@ import { seededRuns } from './support/seededRuns';
 const NON_SEEDED_BASED_RUN = 25;
 
 describe('mersenne twister', () => {
-  let mersenne: Mersenne;
-
-  beforeEach(() => {
-    mersenne = mersenneFn();
-  });
+  const mersenne: Mersenne = mersenneFn();
 
   for (const seed of [...seededRuns, [42, 1, 2], [1337, 1, 2], [1211, 1, 2]]) {
     describe(`seed: ${JSON.stringify(seed)}`, () => {
diff --git a/vite.config.ts b/vite.config.ts
index 76152f60..169c4338 100644
--- a/vite.config.ts
+++ b/vite.config.ts
@@ -1,6 +1,10 @@
 /// <reference types="vitest" />
 import { defineConfig } from 'vite';
 
+const VITEST_SEQUENCE_SEED = Date.now();
+
+console.log('VITEST_SEQUENCE_SEED', VITEST_SEQUENCE_SEED);
+
 // https://vitejs.dev/config/
 export default defineConfig({
   test: {
@@ -10,6 +14,10 @@ export default defineConfig({
       include: ['src'],
     },
     reporters: 'basic',
+    sequence: {
+      seed: VITEST_SEQUENCE_SEED,
+      shuffle: true,
+    },
     onConsoleLog(log, type) {
       if (
         type === 'stderr' &&