X-Git-Url: https://adrianiainlam.tk/git/?a=blobdiff_plain;f=auto_tests%2Ftests%2FUtil.js;h=36532cd32f85904306cd87f490032f23cc17ab45;hb=ce31caf22475e3e1fd6d9fea192d61ff4fcd7fac;hp=7fca030a765695cc4470b528f38c4f9766d85556;hpb=7249a5aa13b2861eb6e79ca39059233fc6ed701d;p=dygraphs.git

diff --git a/auto_tests/tests/Util.js b/auto_tests/tests/Util.js
index 7fca030..36532cd 100644
--- a/auto_tests/tests/Util.js
+++ b/auto_tests/tests/Util.js
@@ -3,6 +3,9 @@
  *
  * @author konigsberg@google.com (Robert Konigsberg)
  */
+
+import * as utils from '../../src/dygraph-utils';
+
 var Util = {};
 
 /**
@@ -16,10 +19,10 @@ Util.getYLabels = function(axis_num, parent) {
   var y_labels = parent.getElementsByClassName("dygraph-axis-label-y" + axis_num);
   var ary = [];
   for (var i = 0; i < y_labels.length; i++) {
-    ary.push(y_labels[i].innerHTML);
+    ary.push(y_labels[i].innerHTML.replace(/&#160;|&nbsp;/g, ' '));
   }
   return ary;
-}
+};
 
 /**
  * Get the x-labels for a given axis.
@@ -31,10 +34,10 @@ Util.getXLabels = function(parent) {
   var x_labels = parent.getElementsByClassName("dygraph-axis-label-x");
   var ary = [];
   for (var i = 0; i < x_labels.length; i++) {
-    ary.push(x_labels[i].innerHTML);
+    ary.push(x_labels[i].innerHTML.replace(/&#160;|&nbsp;/g, ' '));
   }
   return ary;
-}
+};
 
 /**
  * Returns all text in tags w/ a given css class, sorted.
@@ -49,11 +52,124 @@ Util.getClassTexts = function(css_class, parent) {
   }
   texts.sort();
   return texts;
-}
+};
+
+// Convert &nbsp; to a normal space
+Util.nbspToSpace = function(str) {
+  var re = new RegExp(String.fromCharCode(160), 'g');
+  return str.replace(re, ' ');
+};
 
 Util.getLegend = function(parent) {
   parent = parent || document;
   var legend = parent.getElementsByClassName("dygraph-legend")[0];
-  return legend.textContent;
-}
+  return Util.nbspToSpace(legend.textContent);
+};
+
+/**
+ * Assert that all elements have a certain style property.
+ */
+Util.assertStyleOfChildren = function(selector, property, expectedValue) {
+  assert.isTrue(selector.length > 0);
+  for (var idx = 0; idx < selector.length; idx++) {
+    var child = selector[idx];
+    assert.equal(expectedValue, window.getComputedStyle(child)[property]);
+  }
+};
+
+
+/**
+ * Takes in an array of strings and returns an array of floats.
+ */
+Util.makeNumbers = function(ary) {
+  var ret = [];
+  for (var i = 0; i < ary.length; i++) {
+    ret.push(parseFloat(ary[i]));
+  }
+  return ret;
+};
+
+
+/**
+ * Sample a pixel from the canvas.
+ * Returns an [r, g, b, a] tuple where each values is in [0, 255].
+ * This is _very_ slow! If you want to sample many pixels, use PixelSampler.
+ */
+Util.samplePixel = function(canvas, x, y) {
+  var ctx = canvas.getContext("2d");  // bypasses Proxy if applied.
+
+  var imageData = ctx.getImageData(0, 0, canvas.width, canvas.height);
+
+  var scale = utils.getContextPixelRatio(ctx);
+
+  var i = 4 * (x * scale + imageData.width * y * scale);
+  var d = imageData.data;
+  return [d[i], d[i+1], d[i+2], d[i+3]];
+};
+
+/**
+ * Overrides the browser's built-in XMLHttpRequest with a mock.
+ * Usage:
+ *
+ * var mockXhr = Util.overrideXMLHttpRequest(your_data);
+ * ... call code that does an XHR ...
+ * mockXhr.respond();  // restores default behavior.
+ * ... do your assertions ...
+ */
+Util.overrideXMLHttpRequest = function(data) {
+  var originalXMLHttpRequest = XMLHttpRequest;
+
+  var requests = [];
+  var FakeXMLHttpRequest = function () {
+    requests.push(this);
+  };
+  FakeXMLHttpRequest.prototype.open = function () {};
+  FakeXMLHttpRequest.prototype.send = function () {
+    this.readyState = 4;
+    this.status = 200;
+    this.responseText = data;
+  };
+  FakeXMLHttpRequest.restore = function() {
+    window.XMLHttpRequest = originalXMLHttpRequest;
+  };
+  FakeXMLHttpRequest.respond = function() {
+    for (var i = 0; i < requests.length; i++) {
+      requests[i].onreadystatechange();
+    }
+    FakeXMLHttpRequest.restore();
+  };
+  window.XMLHttpRequest = FakeXMLHttpRequest;
+  return FakeXMLHttpRequest;
+};
+
+/**
+ * Format a date as 2000/01/23
+ * @param {number} dateMillis Millis since epoch.
+ * @return {string} The date formatted as YYYY-MM-DD.
+ */
+Util.formatDate = function(dateMillis) {
+  return utils.dateString_(dateMillis).slice(0, 10);  // 10 == "YYYY/MM/DD".length
+};
+
+/**
+ * Capture console.{log,warn,error} statements into obj.
+ * obj will look like {log:[], warn:[], error:[]}
+ * This returns a function which will restore the original console.
+ */
+Util.captureConsole = function(obj) {
+  obj.log = [];
+  obj.warn = [];
+  obj.error = [];
+  var orig = [console.log, console.warn, console.error];
+  console.log = function(text) { obj.log.push(text); };
+  console.warn = function(text) { obj.warn.push(text); };
+  console.error = function(text) { obj.error.push(text); };
+
+  return function() {
+    console.log = orig[0];
+    console.warn = orig[1];
+    console.error = orig[2];
+  };
+};
 
+export default Util;