X-Git-Url: https://adrianiainlam.tk/git/?a=blobdiff_plain;f=auto_tests%2Ftests%2Fplugins_legend.js;fp=auto_tests%2Ftests%2Fplugins_legend.js;h=e0384c84d453468b08530e84ef27020e11dcaa69;hb=961b513bfe7d680506b4025b4dfb68aa6393bb4f;hp=26daf926e012c2688e98e4076368c42918f3558b;hpb=b6126069a9e468e80a27edf7bdf20ef0ae20b4fb;p=dygraphs.git

diff --git a/auto_tests/tests/plugins_legend.js b/auto_tests/tests/plugins_legend.js
index 26daf92..e0384c8 100644
--- a/auto_tests/tests/plugins_legend.js
+++ b/auto_tests/tests/plugins_legend.js
@@ -76,4 +76,41 @@ it('should render dashed patterns', function() {
                'rgb(255, 0, 0)');
 });
 
+it('should use a legendFormatter', function() {
+  var calls = [];
+  var g = new Dygraph(graph, 'X,Y\n1,2\n', {
+    color: 'red',
+    legend: 'always',
+    legendFormatter: function(data) {
+      calls.push(data);
+      // Note: can't check against `g` because it's not defined yet.
+      assert(this.toString().indexOf('Dygraph') >= 0);
+      return '';
+    }
+  });
+
+  assert(calls.length == 1);  // legend for no selected points
+  g.setSelection(0);
+  assert(calls.length == 2);  // legend with selected points
+  g.clearSelection();
+  assert(calls.length == 3);
+
+  assert.equal(calls[0].x, undefined);
+  assert.equal(calls[1].x, 1);
+  assert.equal(calls[1].xHTML, '1');
+  assert.equal(calls[2].x, undefined);
+
+  assert.equal(calls[0].series.length, 1);
+  assert.equal(calls[1].series.length, 1);
+  assert.equal(calls[2].series.length, 1);
+
+  assert.equal(calls[0].series[0].y, undefined);
+  assert.equal(calls[1].series[0].label, 'Y');
+  assert.equal(calls[1].series[0].labelHTML, 'Y');
+  assert.equal(calls[1].series[0].y, 2);
+  assert.equal(calls[1].series[0].yHTML, '2');
+  assert.equal(calls[1].series[0].isVisible, true);
+  assert.equal(calls[2].series[0].y, undefined);
+});
+
 });