Version 1

[yaffs-website] / node_modules / es5-shim / tests / spec / s-number.js

diff --git a/node_modules/es5-shim/tests/spec/s-number.js b/node_modules/es5-shim/tests/spec/s-number.js
new file mode 100644 (file)
index 0000000..ab6c9c9
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+++ b/node_modules/es5-shim/tests/spec/s-number.js
@@ -0,0 +1,59 @@
+/* global describe, it, expect */
+
+describe('Number', function () {
+    'use strict';
+
+    describe('#toFixed()', function () {
+        it('should convert numbers correctly', function () {
+            expect((0.00008).toFixed(3)).toBe('0.000');
+            expect((0.9).toFixed(0)).toBe('1');
+            expect((1.255).toFixed(2)).toBe('1.25');
+            expect((1843654265.0774949).toFixed(5)).toBe('1843654265.07749');
+            expect((1000000000000000128).toFixed(0)).toBe('1000000000000000128');
+        });
+    });
+
+    describe('#toPrecision()', function () {
+        // the spec allows for this test to fail.
+        it('throws a RangeError when < 1 or > 21', function () {
+            expect(function () { return (0.9).toPrecision(0); }).toThrow();
+            // Firefox allows values up to 100
+            expect(function () { return (0.9).toPrecision(101); }).toThrow();
+        });
+
+        it('works as expected', function () {
+            expect((0.00008).toPrecision(3)).toBe('0.0000800');
+            expect((1.255).toPrecision(2)).toBe('1.3');
+            expect((1843654265.0774949).toPrecision(13)).toBe('1843654265.077');
+            expect(NaN.toPrecision(1)).toBe('NaN');
+        });
+
+        it('works with an undefined precision', function () {
+            var num = 123.456;
+            expect(num.toPrecision()).toBe(String(num));
+            expect(num.toPrecision(undefined)).toBe(String(num));
+        });
+    });
+
+    describe('constants', function () {
+        it('should have MAX_VALUE', function () {
+            expect(Number.MAX_VALUE).toBe(1.7976931348623157e308);
+        });
+
+        it('should have MIN_VALUE', function () {
+            expect(Number.MIN_VALUE).toBe(5e-324);
+        });
+
+        it('should have NaN', function () {
+            expect(Number.NaN).not.toBe(Number.NaN);
+        });
+
+        it('should have POSITIVE_INFINITY', function () {
+            expect(Number.POSITIVE_INFINITY).toBe(Infinity);
+        });
+
+        it('should have NEGATIVE_INFINITY', function () {
+            expect(Number.NEGATIVE_INFINITY).toBe(-Infinity);
+        });
+    });
+});