test(Map): add render spec for style

src/__tests__/Map-test.js

@@ -0,0 +1,37 @@
+/** @jsx React.DOM */
+"use strict";
+
+jest.dontMock("../Map.js");
+jest.dontMock("../GoogleMapsMixin.js");
+jest.dontMock("../mixins/ChildMixin.js");
+jest.dontMock("../mixins/EventBindingMixin.js");
+
+describe("Map", function() {
+  it("should render a canvas", function() {
+    var React = require("react/addons"),
+        Map = require("../Map.js"),
+        {TestUtils} = React.addons,
+        MockContext,
+        map,
+        divCanvas;
+
+    MockContext = React.createClass({
+      mixins: [require("../GoogleMapsMixin")],
+
+      render () {
+        return <div><Map /></div>;
+      }
+    });
+
+    map = TestUtils.findRenderedComponentWithType(
+      TestUtils.renderIntoDocument(<MockContext />),
+      Map
+    );
+
+    divCanvas = TestUtils.findRenderedDOMComponentWithTag(
+      map, "div"
+    );
+
+    expect(divCanvas.getDOMNode().getAttribute("style")).toEqual("width:100%;height:400px;");
+  });
+});