+ assert.equal("original", a.c.x);
+});
+
+
+it('testIterator_nopredicate', function() {
+ var array = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h'];
+ var iter = utils.createIterator(array, 1, 4);
+ assert.isTrue(iter.hasNext);
+ assert.equal('b', iter.peek);
+ assert.equal('b', iter.next());
+ assert.isTrue(iter.hasNext);
+
+ assert.equal('c', iter.peek);
+ assert.equal('c', iter.next());
+
+ assert.isTrue(iter.hasNext);
+ assert.equal('d', iter.next());
+
+ assert.isTrue(iter.hasNext);
+ assert.equal('e', iter.next());
+
+ assert.isFalse(iter.hasNext);
+});
+
+it('testIterator_predicate', function() {
+ var array = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h'];
+ var iter = utils.createIterator(array, 1, 4,
+ function(array, idx) { return array[idx] !== 'd' });
+ assert.isTrue(iter.hasNext);
+ assert.equal('b', iter.peek);
+ assert.equal('b', iter.next());
+ assert.isTrue(iter.hasNext);
+
+ assert.equal('c', iter.peek);
+ assert.equal('c', iter.next());
+
+ assert.isTrue(iter.hasNext);
+ assert.equal('e', iter.next());
+
+ assert.isFalse(iter.hasNext);
+});
+
+it('testIterator_empty', function() {
+ var array = [];
+ var iter = utils.createIterator([], 0, 0);
+ assert.isFalse(iter.hasNext);
+});
+
+it('testIterator_outOfRange', function() {
+ var array = ['a', 'b', 'c'];
+ var iter = utils.createIterator(array, 1, 4,
+ function(array, idx) { return array[idx] !== 'd' });
+ assert.isTrue(iter.hasNext);
+ assert.equal('b', iter.peek);
+ assert.equal('b', iter.next());
+ assert.isTrue(iter.hasNext);
+
+ assert.equal('c', iter.peek);
+ assert.equal('c', iter.next());
+
+ assert.isFalse(iter.hasNext);
+});
+
+// Makes sure full array is tested, and that the predicate isn't called
+// with invalid boundaries.
+it('testIterator_whole_array', function() {
+ var array = ['a', 'b', 'c'];
+ var iter = utils.createIterator(array, 0, array.length,
+ function(array, idx) {
+ if (idx < 0 || idx >= array.length) {
+ throw "err";
+ } else {
+ return true;
+ }
+ });
+ assert.isTrue(iter.hasNext);
+ assert.equal('a', iter.next());
+ assert.isTrue(iter.hasNext);
+ assert.equal('b', iter.next());
+ assert.isTrue(iter.hasNext);
+ assert.equal('c', iter.next());
+ assert.isFalse(iter.hasNext);
+ assert.isNull(iter.next());
+});
+
+it('testIterator_no_args', function() {
+ var array = ['a', 'b', 'c'];
+ var iter = utils.createIterator(array);
+ assert.isTrue(iter.hasNext);
+ assert.equal('a', iter.next());
+ assert.isTrue(iter.hasNext);
+ assert.equal('b', iter.next());
+ assert.isTrue(iter.hasNext);
+ assert.equal('c', iter.next());
+ assert.isFalse(iter.hasNext);
+ assert.isNull(iter.next());
+});
+
+it('testToRGB', function() {
+ assert.deepEqual({r: 255, g: 200, b: 150}, utils.toRGB_('rgb(255,200,150)'));
+ assert.deepEqual({r: 255, g: 200, b: 150}, utils.toRGB_('#FFC896'));
+ assert.deepEqual({r: 255, g: 0, b: 0}, utils.toRGB_('red'));
+ assert.deepEqual({r: 255, g: 200, b: 150, a: 0.6},
+ utils.toRGB_('rgba(255, 200, 150, 0.6)'));
+});
+
+it('testIsPixelChangingOptionList', function() {
+ var isPx = utils.isPixelChangingOptionList;
+ assert.isTrue(isPx([], { axes: { y: { digitsAfterDecimal: 3 }}}));
+ assert.isFalse(isPx([], { axes: { y: { axisLineColor: 'blue' }}}));
+});
+
+/*
+it('testDateSet', function() {
+ var base = new Date(1383455100000);
+ var d = new Date(base);
+
+ // A one hour shift -- this is surprising behavior!
+ d.setMilliseconds(10);
+ assert.equal(3600010, d.getTime() - base.getTime());
+
+ // setDateSameTZ compensates for this surprise.
+ d = new Date(base);
+ Dygraph.setDateSameTZ(d, {ms: 10});
+ assert.equal(10, d.getTime() - base.getTime());
+});
+*/
+
+});