Speed up watch mode tests

Youmoo · web-flow · commit 312c8ddad35d · 2021-04-06T09:39:22.000+08:00
... according to https://ivantanev.com/make-jest-faster/ I used this option in my own project and the test time gets reduced from 4s to 1.5s，I think it is worth applying.
diff --git a/scripts/test.ts b/scripts/test.ts
@@ -20,6 +20,8 @@ const argv = process.argv.slice(2);
 // Watch unless on CI or in coverage mode
 if (!process.env.CI && argv.includes('--coverage') === false) {
     argv.push('--watch');
+    // Speed up watch mode tests according to https://ivantanev.com/make-jest-faster/
+    argv.push('--maxWorkers=25%');
 }
 
 jest.run(argv);

Original file line number	Diff line number	Diff line change
`@@ -20,6 +20,8 @@ const argv = process.argv.slice(2);`
`20`	`20`	`// Watch unless on CI or in coverage mode`
`21`	`21`	`if (!process.env.CI && argv.includes('--coverage') === false) {`
`22`	`22`	`argv.push('--watch');`
	`23`	`+ // Speed up watch mode tests according to https://ivantanev.com/make-jest-faster/`
	`24`	`+ argv.push('--maxWorkers=25%');`
`23`	`25`	`}`
`24`	`26`
`25`	`27`	`jest.run(argv);`