add node modules to repo

node_modules/cuint/test/UINT64_add-test.js

@@ -0,0 +1,120 @@
+var assert = require('assert')
+var UINT64 = require('..').UINT64
+
+describe('add method', function () {
+
+  describe('0+0', function () {
+
+    it('should return 0', function (done) {
+      var u = UINT64(0).add( UINT64(0) )
+
+      assert.equal( u.toNumber(), 0 )
+      done()
+    })
+
+  })
+
+  describe('0+1', function () {
+
+    it('should return 1', function (done) {
+      var u = UINT64(0).add( UINT64(1) )
+
+      assert.equal( u.toNumber(), 1 )
+      done()
+    })
+
+  })
+
+  describe('1+0', function () {
+
+    it('should return 0', function (done) {
+      var u = UINT64(1).add( UINT64(0) )
+
+      assert.equal( u.toNumber(), 1 )
+      done()
+    })
+
+  })
+
+  describe('1+1', function () {
+
+    it('should return 2', function (done) {
+      var u = UINT64(1).add( UINT64(1) )
+
+      assert.equal( u.toNumber(), 2 )
+      done()
+    })
+
+  })
+
+  describe('low bit+high bit', function () {
+
+    it('should return n', function (done) {
+      var n = Math.pow(2, 17)
+      var u = UINT64(123).add( UINT64(n) )
+
+      assert.equal( u.toNumber(), 123 + n )
+      done()
+    })
+
+  })
+
+  describe('high bit+low bit', function () {
+
+    it('should return n', function (done) {
+      var n = Math.pow(2, 17)
+      var u = UINT64(n).add( UINT64(123) )
+
+      assert.equal( u.toNumber(), 123 + n )
+      done()
+    })
+
+  })
+
+  describe('high bit+high bit', function () {
+
+    it('should return n', function (done) {
+      var n = Math.pow(2, 17)
+      var u = UINT64(n).add( UINT64(n) )
+
+      assert.equal( u.toNumber(), n + n )
+      done()
+    })
+
+  })
+
+  describe('overflow', function () {
+
+    it('should return n', function (done) {
+      var n = 'FFFFFFFF'
+      var u = UINT64(n, 16).add( UINT64(n, 16) )
+
+      assert.equal( u.toNumber(), -2 )
+      done()
+    })
+
+  })
+
+  describe('high bit+high bit 2', function () {
+
+    it('should return n', function (done) {
+      var u = UINT64('326648991').add( UINT64('265443576') )
+
+      assert.equal( u.toNumber(), 592092567 )
+      done()
+    })
+
+  })
+
+  describe('high bit+high bit 3', function () {
+
+    it('should return n', function (done) {
+      var u = UINT64('800000000000', 16).add( UINT64('100000000000', 16) )
+
+      assert.equal( u.toString(16), '900000000000' )
+      done()
+    })
+
+  })
+
+})