Add tests for h, v and d select directions & cleanup
Add tests for h, v and d select directions & cleanup

asolagmbh/plotly.js,plotly/plotly.js,etpinard/plotly.js,plotly/plotly.js,aburato/plotly.js,asolagmbh/plotly.js,aburato/plotly.js,plotly/plotly.js,etpinard/plotly.js,plotly/plotly.js,asolagmbh/plotly.js,etpinard/plotly.js