Smoke tests (#604)

smoke tests

client/src/components/graph/graph.js

@@ -477,6 +477,7 @@ class Graph extends React.Component {
             <canvas
               width={responsive.width - this.graphPaddingRight}
               height={responsive.height - this.graphPaddingTop}
+              data-testid="layout"
               ref={canvas => {
                 this.reglCanvas = canvas;
               }}

client/src/components/graph/setupSVGandBrush.js

@@ -20,6 +20,7 @@ export default (
   const svg = d3
     .select("#graphAttachPoint")
     .append("svg")
+    .attr("data-testid", "layout-overlay")
     .attr("width", responsive.width - graphPaddingRight)
     .attr("height", responsive.height)
     .attr("class", `${styles.graphSVG}`);