v0.3.2

Changelog

• 1e2a5f7 [Feature] add unit test
• 9d9cf84 [Feature] add unit test
• a3c24c4 [Feature] add codecov workflow status badge
• ac406ca [Feature] enable codecov workflow
• 85e7bd3 [Feature] unit test
• 9ce6651 [Feature] use buffered channel to prevent race condition