X-Git-Url: https://adrianiainlam.tk/git/?a=blobdiff_plain;f=auto_tests%2Ftests%2Fupdate_options.js;h=ac28e99b2abc38fe5670e26cac8c11ef31f81325;hb=e26b71566419e1c051f3fbd1f4f8f64b063a04c9;hp=b40d705d06bb9b2c912205e20e79edfde2ef70aa;hpb=b455a0ef684db54cec99802170857a0281effedd;p=dygraphs.git

diff --git a/auto_tests/tests/update_options.js b/auto_tests/tests/update_options.js
index b40d705..ac28e99 100644
--- a/auto_tests/tests/update_options.js
+++ b/auto_tests/tests/update_options.js
@@ -136,11 +136,39 @@ UpdateOptionsTestCase.prototype.testUpdateColors = function() {
   graph.updateOptions({ colors: colors1 });
   assertEquals(colors1, graph.getColors());
 
-  var colors2 = [ "#aaa", "#bbb", "#ccc" ];
+  // extra colors are ignored until you add additional data series.
+  var colors2 = [ "#ddd", "#eee", "#fff" ];
   graph.updateOptions({ colors: colors2 });
-  assertEquals(colors2, graph.getColors());
+  assertEquals(["#ddd", "#eee"], graph.getColors());
 
+  graph.updateOptions({ file:
+      "X,Y1,Y2,Y3\n" +
+      "2011-01-01,2,3,4\n" +
+      "2011-02-02,5,3,2\n"
+  });
+  assertEquals(colors2, graph.getColors());
 
-  graph.updateOptions({ colors: null });
+  graph.updateOptions({ colors: null, file: this.data });
   assertEquals(defaultColors, graph.getColors());
 }
+
+// Regression test for http://code.google.com/p/dygraphs/issues/detail?id=249
+// Verifies that setting 'legend: always' via update immediately shows the
+// legend.
+UpdateOptionsTestCase.prototype.testUpdateLegendAlways = function() {
+  var graphDiv = document.getElementById("graph");
+  var graph = new Dygraph(graphDiv, this.data, this.opts);
+
+  var legend = document.getElementsByClassName("dygraph-legend");
+  assertEquals(1, legend.length);
+  legend = legend[0];
+  assertEquals("", legend.innerHTML);
+
+  graph.updateOptions({legend: 'always'});
+
+  legend = document.getElementsByClassName("dygraph-legend");
+  assertEquals(1, legend.length);
+  legend = legend[0];
+  assertNotEquals(-1, legend.textContent.indexOf("Y1"));
+  assertNotEquals(-1, legend.textContent.indexOf("Y2"));
+};