From: Simon Brunel <simonbrunel@users.noreply.github.com>
Date: Mon, 25 Apr 2016 23:30:59 +0000 (+0200)
Subject: New toBeCloseToPixel jasmine matcher
X-Git-Tag: 2.1.0~13^2~3
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8b156bdc98613671d6c4e247b604c89506e3c810;p=thirdparty%2FChart.js.git

New toBeCloseToPixel jasmine matcher

Because of differences between testing platforms, introduce a new matcher for (floating) pixel values comparison (currently 2 pixels tolerance).
---

diff --git a/test/mockContext.js b/test/mockContext.js
index 17d9ad5d8..08d6101aa 100644
--- a/test/mockContext.js
+++ b/test/mockContext.js
@@ -122,6 +122,25 @@
 		return new Context();
 	};
 
+	// Custom matcher
+	function toBeCloseToPixel() {
+		return {
+			compare: function(actual, expected) {
+				var result = (!isNaN(actual) && !isNaN(expected))?
+					Math.abs(actual - expected) < 2 :	// 2 pixels tolerance
+					false;
+
+				return { pass: result };
+			}
+		}
+	};
+
+	window.addDefaultMatchers = function(jasmine) {
+		jasmine.addMatchers({
+			toBeCloseToPixel: toBeCloseToPixel
+		});
+	}
+
 	// Canvas injection helpers
 	var charts = {};