From b2314fa2bb2d4a9ec76c0fcd7b545c2bee84b609 Mon Sep 17 00:00:00 2001
From: Jonas Wagner <jonas@29a.ch>
Date: Sat, 31 Dec 2016 01:49:56 +0100
Subject: [PATCH] Make sure seed affects output

---
 test/simplex-noise-test.js | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/test/simplex-noise-test.js b/test/simplex-noise-test.js
index 3c97da8..fcf2a2c 100644
--- a/test/simplex-noise-test.js
+++ b/test/simplex-noise-test.js
@@ -55,6 +55,10 @@ describe('SimplexNoise', function() {
       it('should return a different value for a different input', function() {
         assert.notEqual(simplex.noise2D(0.1, 0.2), simplex.noise2D(0.101, 0.202));
       });
+      it('should return a different output with a different seed', function() {
+        var simplex2 = new SimplexNoise(new Alea('other seed'));
+        assert.notEqual(simplex.noise2D(0.1, 0.2), simplex2.noise2D(0.1, 0.2));
+      });
       it('should return values between -1 and 1', function() {
         for (var x = 0; x < 10; x++) {
           for (var y = 0; y < 10; y++) {
@@ -76,6 +80,10 @@ describe('SimplexNoise', function() {
         assert.notEqual(simplex.noise3D(0.1, 0.2, 0.3), simplex.noise3D(0.101, 0.202, 0.303));
         assert.notEqual(simplex.noise3D(0.1, 0.2, 0.3), simplex.noise3D(0.1, 0.2, 0.303));
       });
+      it('should return a different output with a different seed', function() {
+        var simplex2 = new SimplexNoise(new Alea('other seed'));
+        assert.notEqual(simplex.noise2D(0.1, 0.2, 0.3), simplex2.noise2D(0.1, 0.2, 0.3));
+      });
       it('should return values between -1 and 1', function() {
         for (var x = 0; x < 10; x++) {
           for (var y = 0; y < 10; y++) {
@@ -97,6 +105,10 @@ describe('SimplexNoise', function() {
         assert.notEqual(simplex.noise4D(0.1, 0.2, 0.3, 0.4), simplex.noise4D(0.101, 0.202, 0.303, 0.404));
         assert.notEqual(simplex.noise4D(0.1, 0.2, 0.3, 0.4), simplex.noise4D(0.1, 0.2, 0.3, 0.404));
       });
+      it('should return a different output with a different seed', function() {
+        var simplex2 = new SimplexNoise(new Alea('other seed'));
+        assert.notEqual(simplex.noise2D(0.1, 0.2, 0.3, 0.4), simplex2.noise2D(0.1, 0.2, 0.3, 0.4));
+      });
       it('should return values between -1 and 1', function() {
         for (var x = 0; x < 10; x++) {
           for (var y = 0; y < 10; y++) {