+
+/**
+ * Test that underlay callback receives the correct y-axis range.
+ */
+CallbackTestCase.prototype.underlayCallback_yAxisRange = function() {
+ var called = false;
+ var yMin, yMax;
+
+ var callback = function(canvas, area, g) {
+ assertEquals(g, this);
+ yMin = g.yAxisRange(0)[0];
+ yMax = g.yAxisRange(0)[1];
+ };
+
+ var graph = document.getElementById("graph");
+ var g = new Dygraph(graph, "\n", {
+ valueRange: [0,10],
+ underlayCallback: callback
+ });
+
+ assertEquals(0, yMin);
+ assertEquals(10, yMax);
+};
+
+/**
+ * Test that drawPointCallback is called for isolated points and correct idx for the point is returned.
+ */
+CallbackTestCase.prototype.testDrawPointCallback_idx = function() {
+ var indices = [];
+
+ var g;
+ var callback = function(g, seriesName, canvasContext, cx, cy, color, pointSizeParam,idx) {
+ assertEquals(g, this);
+ indices.push(idx);
+ Dygraph.Circles.DEFAULT.apply(this, arguments);
+ };
+
+ var graph = document.getElementById("graph");
+
+ var testdata = [[10, 2], [11, 3], [12, NaN], [13, 2], [14, NaN], [15, 3]];
+ var graphOpts = {
+ labels: ['X', 'Y'],
+ valueRange: [0, 4],
+ drawPoints : false,
+ drawPointCallback : callback,
+ pointSize : 8
+ };
+
+ // Test that correct idx for isolated points are passed to the callback.
+ g = new Dygraph(graph, testdata, graphOpts);
+ assertEquals(2, indices.length);
+ assertEquals([3, 5],indices);
+
+ // Test that correct indices for isolated points + gap points are passed to the callback when
+ // drawGapEdgePoints is set. This should add one point at the right
+ // edge of the segment at x=11, but not at the graph edge at x=10.
+ indices = []; // Reset for new test
+ graphOpts.drawGapEdgePoints = true;
+ g = new Dygraph(graph, testdata, graphOpts);
+ assertEquals(3, indices.length);
+ assertEquals([1, 3, 5],indices);
+
+
+ //Test that correct indices are passed to the callback when zoomed in.
+ indices = []; // Reset for new test
+ graphOpts.dateWindow = [12.5,13.5]
+ graphOpts.drawPoints = true;
+ testdata = [[10, 2], [11, 3], [12, 4], [13, 2], [14, 5], [15, 3]];
+ g = new Dygraph(graph, testdata, graphOpts);
+ assertEquals(3, indices.length);
+ assertEquals([2, 3, 4],indices);
+};
+
+/**
+ * Test that the correct idx is returned for the point in the onHiglightCallback.
+ */
+CallbackTestCase.prototype.testDrawHighlightPointCallback_idx = function() {
+ var idxToCheck = null;
+
+ var drawHighlightPointCallback = function(g, seriesName, canvasContext, cx, cy, color, pointSizeParam,idx) {
+ assertEquals(g, this);
+ idxToCheck = idx;
+ };
+ var testdata = [[1, 2], [2, 3], [3, NaN], [4, 2], [5, NaN], [6, 3]];
+ var graph = document.getElementById("graph");
+ var g = new Dygraph(graph, testdata,
+ {
+ drawHighlightPointCallback : drawHighlightPointCallback
+ });
+
+ assertNull(idxToCheck);
+ DygraphOps.dispatchMouseMove(g, 3, 0);
+ // check that NaN point is not highlighted
+ assertNull(idxToCheck);
+ DygraphOps.dispatchMouseMove(g, 1, 2);
+ // check that correct index is returned
+ assertEquals(0,idxToCheck);
+ DygraphOps.dispatchMouseMove(g, 6, 3);
+ assertEquals(5,idxToCheck);
+};