correct tooltip test

package.json

@@ -97,7 +97,7 @@
     "screenshot": "node ./bin/screenshot.js",
     "start": "npm run dev",
     "test": "torch --compile --renderer --recursive ./test/unit",
-    "test-live": "torch --compile --interactive --watch --recursive ./test/unit",
+    "test-live": "torch --compile --interactive --watch --recursive ./test/unit/plugins/tool.tooltip-spec.js",
     "watch": "webpack --config webpack-dev.config.js",
     "win-dev": "node ./bin/win-dev.js"
   },

plugins/tool.tooltip/index.js

@@ -68,7 +68,7 @@ class Plugin {
   init() {
     const graph = this.graph;
     graph.on('mouseenter', ev => {
-      this.onMouseEnter(ev);
+      ev.shape && this.onMouseEnter(ev);
     });
     graph.on('mousemove', ev => {
       this.onMouseMove(ev);
@@ -87,6 +87,9 @@ class Plugin {
 
     if (tooltipHtml) {
       tooltip = Util.createDOM(tooltipHtml);
+      tooltip.css({
+        position: 'absolute'
+      });
       graphContainer.appendChild(tooltip);
     } else {
       tooltip = null;
@@ -110,7 +113,7 @@ class Plugin {
   }
   onMouseLeave() {
     if (this.tooltip) {
-      // this.tooltip.destroy();
+      this.tooltip.destroy();
       this.tooltip = null;
     }
   }

test/unit/plugins/tool.tooltip-spec.js

@@ -11,9 +11,9 @@ document.body.appendChild(Util.createDOM(`
 
 describe('tooltip test', () => {
   const tooltip = new Tooltip({
-    getHtml({ item }) {
+    getTooltip() {
       return `
-        <div></div>
+        <div>dddd</div>
       `;
     }
   });
@@ -39,4 +39,5 @@ describe('tooltip test', () => {
     plugins: [ tooltip ]
   });
   graph.read(data);
+  graph.destroy();
 });