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authorMinteck <contact@minteck.org>2023-02-23 19:34:56 +0100
committerMinteck <contact@minteck.org>2023-02-23 19:34:56 +0100
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tree75be5fba4368472fb11c8015aee026b2b9a71888 /includes/external/school/node_modules/cuint/test/UINT32_subtract-test.js
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Updated 40 files, added 37 files, deleted 1103 files and renamed 3905 files (automated)
Diffstat (limited to 'includes/external/school/node_modules/cuint/test/UINT32_subtract-test.js')
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diff --git a/includes/external/school/node_modules/cuint/test/UINT32_subtract-test.js b/includes/external/school/node_modules/cuint/test/UINT32_subtract-test.js
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+var assert = require('assert')
+var UINT32 = require('..').UINT32
+
+describe('subtract method', function () {
+
+ describe('0-0', function () {
+
+ it('should return 0', function (done) {
+ var u = UINT32(0).subtract( UINT32(0) )
+
+ assert.equal( u.toNumber(), 0 )
+ done()
+ })
+
+ })
+
+ describe('1-0', function () {
+
+ it('should return 1', function (done) {
+ var u = UINT32(1).subtract( UINT32(0) )
+
+ assert.equal( u.toNumber(), 1 )
+ done()
+ })
+
+ })
+
+ describe('0-1', function () {
+
+ it('should return -1', function (done) {
+ var u = UINT32(0).subtract( UINT32(1) )
+
+ assert.equal( u.toNumber(), -1 )
+ done()
+ })
+
+ })
+
+ describe('low bit-high bit', function () {
+
+ it('should return 0', function (done) {
+ var n = Math.pow(2, 17)
+ var u = UINT32(1).subtract( UINT32(n) )
+
+ assert.equal( u.toNumber(), 1-n )
+ done()
+ })
+
+ })
+
+ describe('high bit-low bit', function () {
+
+ it('should return n', function (done) {
+ var n = Math.pow(2, 17)
+ var u = UINT32(n).subtract( UINT32(123) )
+
+ assert.equal( u.toNumber(), n - 123 )
+ done()
+ })
+
+ })
+
+ describe('high bit-high bit', function () {
+
+ it('should return n', function (done) {
+ var n = Math.pow(2, 17)
+ var u = UINT32(n+1).subtract( UINT32(n) )
+
+ assert.equal( u.toNumber(), 1 )
+ done()
+ })
+
+ })
+
+})