+});
+
+
+it('testConstantSeriesNegative', function() {
+ var data = "X,Y\n" +
+ "1,-1\n" +
+ "2,-1\n";
+
+ var g = new Dygraph('graph', data, {});
+ // This check could be loosened to
+ // g.yAxisRange()[0] < g.yAxisRange()[1] if it breaks in the future.
+ assert.deepEqual([-1.1, -0.9], g.yAxisRange());
+});
+
+
+it('testConstantSeriesNegativeIncludeZero', function() {
+ var data = "X,Y\n" +
+ "1,-1\n" +
+ "2,-1\n";
+
+ var g = new Dygraph('graph', data, {includeZero: true});
+ // This check could be loosened to
+ // g.yAxisRange()[0] < g.yAxisRange()[1] if it breaks in the future.
+ assert.deepEqual([-1.1, 0], g.yAxisRange());
+});
+
+it('should throw with non-existent divs', function() {
+ var data = "X,Y\n" +
+ "1,-1\n" +
+ "2,1\n";
+
+ assert.throws(function() {
+ new Dygraph(null, data);
+ }, /non-existent div/);
+
+ assert.throws(function() {
+ new Dygraph('non-existent-div-id', data);
+ }, /non-existent div/);
+});
+
+});