go语言单元测试报错：missing go.sum entry for module providing package github.com/stretchr/testify/assert

报错：missing go.sum entry for module providing package github.com/stretchr/testify/assert (imported by GinCasbin/test);
解决方法：

❯ go mod edit -require github.com/gin-gonic/gin@latest

❯ go mod tidy

再执行go test成功：