toolkit/javascript/d3/test/core/selection-remove-test.js
changeset 47 c0b4a8b5a012
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolkit/javascript/d3/test/core/selection-remove-test.js	Thu Apr 10 14:20:23 2014 +0200
@@ -0,0 +1,39 @@
+require("../env");
+require("../../d3");
+
+var vows = require("vows"),
+    assert = require("assert");
+
+var suite = vows.describe("selection.remove");
+
+suite.addBatch({
+  "select(body)": {
+    topic: function() {
+      return d3.select("body");
+    },
+    "removes the matching elements": function(body) {
+      var div = body.append("div");
+      div.remove();
+      assert.domNull(div[0][0].parentNode);
+    },
+    "does not remove non-matching elements": function(body) {
+      var div1 = body.append("div"), div2 = body.append("div");
+      div1.remove();
+      assert.domEqual(div2[0][0].parentNode, document.body);
+    },
+    "ignores null nodes": function(body) {
+      var div = body.html("").selectAll("div").data([0, 1]).enter().append("div"),
+          some = d3.selectAll("div");
+      some[0][0] = null;
+      some.remove();
+      assert.domEqual(div[0][0].parentNode, document.body);
+      assert.domNull(div[0][1].parentNode);
+    },
+    "returns the current selection": function(body) {
+      var div = body.append("div");
+      assert.isTrue(div.remove() === div);
+    }
+  }
+});
+
+suite.export(module);