yarn dev
to work on a hmr version of the siteyarn build
to build the dist folder filesyarn test
to do component level testingyarn preview:es
to preview the hello world ES Modulesyarn preview:umd
to preview the hello world UMD module
Testing is about input and output. In a test you supply an input, receive an output, and assert that the output is correct. The most common output of components is the rendered output—the stuff that render functions generate. ~ Testing Vue.js Applications - Edd Yerburgh