JavaScriptExample
diff --git a/‎lib/SizeFormatHelpers.js‎
Lines changed: 3 additions & 3 deletions b/‎lib/SizeFormatHelpers.js‎
Lines changed: 3 additions & 3 deletions
diff --git a/‎test/SizeFormatHelpers.test.js‎
Lines changed: 41 additions & 0 deletions b/‎test/SizeFormatHelpers.test.js‎
Lines changed: 41 additions & 0 deletions
@@ -11,8 +11,8 @@ SizeFormatHelpers.formatSize = size => {
 		return "0 bytes";
 	}
 
-	const abbreviations = ["bytes", "kB", "MB", "GB"];
-	const index = Math.floor(Math.log(size) / Math.log(1000));
+	const abbreviations = ["bytes", "KiB", "MiB", "GiB"];
+	const index = Math.floor(Math.log(size) / Math.log(1024));
 
-	return `${+(size / Math.pow(1000, index)).toPrecision(3)} ${abbreviations[index]}`;
+	return `${+(size / Math.pow(1024, index)).toPrecision(3)} ${abbreviations[index]}`;
 };
@@ -0,0 +1,41 @@
+/* globals describe, it, beforeEach */
+"use strict";
+
+const should = require("should");
+const SizeFormatHelpers = require("../lib/SizeFormatHelpers");
+
+describe("SizeFormatHelpers", () => {
+	describe("formatSize", () => {
+		it("should handle zero size", () => {
+			should(SizeFormatHelpers.formatSize(0)).be.eql("0 bytes");
+		});
+
+		it("should handle bytes", () => {
+			should(SizeFormatHelpers.formatSize(1000)).be.eql("1000 bytes");
+		});
+
+		it("should handle integer kibibytes", () => {
+			should(SizeFormatHelpers.formatSize(2048)).be.eql("2 KiB");
+		});
+
+		it("should handle float kibibytes", () => {
+			should(SizeFormatHelpers.formatSize(2560)).be.eql("2.5 KiB");
+		});
+
+		it("should handle integer mebibytes", () => {
+			should(SizeFormatHelpers.formatSize(10 * 1024 * 1024)).be.eql("10 MiB");
+		});
+
+		it("should handle float mebibytes", () => {
+			should(SizeFormatHelpers.formatSize(12.5 * 1024 * 1024)).be.eql("12.5 MiB");
+		});
+
+		it("should handle integer gibibytes", () => {
+			should(SizeFormatHelpers.formatSize(3 * 1024 * 1024 * 1024)).be.eql("3 GiB");
+		});
+
+		it("should handle float gibibytes", () => {
+			should(SizeFormatHelpers.formatSize(1.2 * 1024 * 1024 * 1024)).be.eql("1.2 GiB");
+		});
+	});
+});