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node_modules/cryptiles/test/index.js

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+// Load modules
+
+var Lab = require('lab');
+var Cryptiles = require('../lib');
+
+
+// Declare internals
+
+var internals = {};
+
+
+// Test shortcuts
+
+var expect = Lab.expect;
+var before = Lab.before;
+var after = Lab.after;
+var describe = Lab.experiment;
+var it = Lab.test;
+
+
+describe('Cryptiles', function () {
+
+    describe('#randomString', function () {
+
+        it('should generate the right length string', function (done) {
+
+            for (var i = 1; i <= 1000; ++i) {
+                expect(Cryptiles.randomString(i).length).to.equal(i);
+            }
+
+            done();
+        });
+
+        it('returns an error on invalid bits size', function (done) {
+
+            expect(Cryptiles.randomString(99999999999999999999).message).to.equal('Failed generating random bits: Argument #1 must be number > 0');
+            done();
+        });
+    });
+
+    describe('#randomBits', function () {
+
+        it('returns an error on invalid input', function (done) {
+
+            expect(Cryptiles.randomBits(0).message).to.equal('Invalid random bits count');
+            done();
+        });
+    });
+
+    describe('#fixedTimeComparison', function () {
+
+        var a = Cryptiles.randomString(50000);
+        var b = Cryptiles.randomString(150000);
+
+        it('should take the same amount of time comparing different string sizes', function (done) {
+
+            var now = Date.now();
+            Cryptiles.fixedTimeComparison(b, a);
+            var t1 = Date.now() - now;
+
+            now = Date.now();
+            Cryptiles.fixedTimeComparison(b, b);
+            var t2 = Date.now() - now;
+
+            expect(t2 - t1).to.be.within(-20, 20);
+            done();
+        });
+
+        it('should return true for equal strings', function (done) {
+
+            expect(Cryptiles.fixedTimeComparison(a, a)).to.equal(true);
+            done();
+        });
+
+        it('should return false for different strings (size, a < b)', function (done) {
+
+            expect(Cryptiles.fixedTimeComparison(a, a + 'x')).to.equal(false);
+            done();
+        });
+
+        it('should return false for different strings (size, a > b)', function (done) {
+
+            expect(Cryptiles.fixedTimeComparison(a + 'x', a)).to.equal(false);
+            done();
+        });
+
+        it('should return false for different strings (size, a = b)', function (done) {
+
+            expect(Cryptiles.fixedTimeComparison(a + 'x', a + 'y')).to.equal(false);
+            done();
+        });
+
+        it('should return false when not a string', function (done) {
+
+            expect(Cryptiles.fixedTimeComparison('x', null)).to.equal(false);
+            done();
+        });
+    });
+});
+
+