add checks for xaxis.categoryarray in category defaults tests
add checks for xaxis.categoryarray in category defaults tests

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