X-Git-Url: https://adrianiainlam.tk/git/?a=blobdiff_plain;f=auto_tests%2Ftests%2Fformats.js;h=2548d99fd7c009b4614408d989281effa97ef8d8;hb=refs%2Ftags%2Fv2.0.0;hp=f16cc6d8810cfa5390102a485c52cf4dfe2438be;hpb=ce31caf22475e3e1fd6d9fea192d61ff4fcd7fac;p=dygraphs.git

diff --git a/auto_tests/tests/formats.js b/auto_tests/tests/formats.js
index f16cc6d..2548d99 100644
--- a/auto_tests/tests/formats.js
+++ b/auto_tests/tests/formats.js
@@ -77,6 +77,16 @@ it('testXValueParser', function() {
   assert.equal(6, g.getValue(3, 0));
 });
 
+it('should throw on strings in native format', () => {
+  assert.throws(() => {
+    new Dygraph('graph', [['1', '10'], ['2', '20']])
+  }, /expected number or date/i);
+
+  assert.throws(() => {
+    new Dygraph('graph', [[new Date(), '10'], [new Date(), '20']])
+  }, /expected number or array/i);
+});
+
 var assertData = function(g) {
   var expected = dataArray;