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Diffstat (limited to 'school/node_modules/cuint/test/UINT64_rotateRight-test.js')
-rw-r--r-- | school/node_modules/cuint/test/UINT64_rotateRight-test.js | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/school/node_modules/cuint/test/UINT64_rotateRight-test.js b/school/node_modules/cuint/test/UINT64_rotateRight-test.js new file mode 100644 index 0000000..45505f4 --- /dev/null +++ b/school/node_modules/cuint/test/UINT64_rotateRight-test.js @@ -0,0 +1,51 @@ +var assert = require('assert') +var UINT64 = require('..').UINT64 + +describe('rotateRight method', function () { + + describe('0rotr1', function () { + + it('should return 0', function (done) { + var u = UINT64(0).rotateRight(1) + + assert.equal( u.toNumber(), 0 ) + done() + }) + + }) + + describe('4rotr1', function () { + + it('should return 2', function (done) { + var u = UINT64(4).rotateRight(1) + + assert.equal( u.toNumber(), 2 ) + done() + }) + + }) + + describe('2^16rotr16', function () { + + it('should return 1', function (done) { + var n = Math.pow(2, 16) + var u = UINT64(n).rotateRight(16) + + assert.equal( u.toNumber(), 1 ) + done() + }) + + }) + + describe('1rotr32', function () { + + it('should return 1', function (done) { + var u = UINT64(1).rotateRight(32) + + assert.equal( u.toString(16), '100000000' ) + done() + }) + + }) + +}) |