Update

1 files changed, 114 insertions, 0 deletions

diff --git a/alarm/node_modules/cuint/test/UINT32_div-test.js b/alarm/node_modules/cuint/test/UINT32_div-test.js
new file mode 100644
index 0000000..6464662
--- /dev/null
+++ b/alarm/node_modules/cuint/test/UINT32_div-test.js
@@ -0,0 +1,114 @@
+var assert = require('assert')
+var UINT32 = require('..').UINT32
+
+describe('div method', function () {
+
+  describe('1/0', function () {
+
+    it('should throw', function (done) {
+      assert.throws(
+          function () {
+            UINT32(1).div( UINT32(0) )
+          }
+        , function (err) {
+            if (err instanceof Error) return true
+          }
+        )
+
+
+      done()
+    })
+
+  })
+
+  describe('0/1', function () {
+
+    it('should return 0', function (done) {
+      var u = UINT32(2).div( UINT32(1) )
+
+      assert.equal( u.toNumber(), 2 )
+      done()
+    })
+
+  })
+
+  describe('2/1', function () {
+
+    it('should return 2', function (done) {
+      var u = UINT32(0).div( UINT32(1) )
+
+      assert.equal( u.toNumber(), 0 )
+      done()
+    })
+
+  })
+
+  describe('1/2', function () {
+
+    it('should return 0', function (done) {
+      var u = UINT32(1).div( UINT32(2) )
+
+      assert.equal( u.toNumber(), 0 )
+      done()
+    })
+
+  })
+
+  describe('low bit/high bit', function () {
+
+    it('should return n', function (done) {
+      var n = Math.pow(2, 17)
+      var u = UINT32(3).div( UINT32(n) )
+
+      assert.equal( u.toNumber(), 0 )
+      done()
+    })
+
+  })
+
+  describe('high bit/low bit', function () {
+
+    it('should return n', function (done) {
+      var n = Math.pow(2, 17)
+      var u = UINT32(n).div( UINT32(3) )
+
+      assert.equal( u.toNumber(), (n/3)|0 )
+      assert.equal( u.remainder.toNumber(), 2 )
+      done()
+    })
+
+  })
+
+  describe('high bit/high bit', function () {
+
+    it('should return n', function (done) {
+      var n = 'FFFFFFFF'
+      var u = UINT32(n, 16).div( UINT32(n, 16) )
+
+      assert.equal( u.toNumber(), 1 )
+      done()
+    })
+
+  })
+
+  describe('high bit/high bit 2', function () {
+
+    it('should return n', function (done) {
+      var u = UINT32('3266489917').div( UINT32('668265263') )
+
+      assert.equal( u.toNumber(), 4 )
+      done()
+    })
+
+  })
+
+  describe('374761393/(16^3)', function () {
+    it('should return 91494', function (done) {
+      var u = UINT32('374761393').div( UINT32(16*16*16) )
+
+      assert.equal( u.toNumber(), 91494 )
+      done()
+    })
+  })
+
+})