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node_modules/xxhashjs/test/XXH-test.js

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+var assert = require('assert')
+var XXH = require('..')
+
+describe('XXH', function () {
+	var seed = 0
+
+	describe('with small input multiple of 4', function () {
+		var input = 'abcd'
+		var expected = 'A3643705' // Computed with xxHash C version
+
+		it('should return hash in a single step', function (done) {
+			var h = XXH.h32( input, seed ).toString(16).toUpperCase()
+
+			assert.equal( h, expected )
+			done()
+		})
+
+		it('should return hash in many steps', function (done) {
+			var H = XXH.h32( seed )
+			var h = H.update( input ).digest().toString(16).toUpperCase()
+
+			assert.equal( h, expected )
+			done()
+		})
+
+	})
+
+	describe('with medium input multiple of 4', function () {
+		var input = Array(1001).join('abcd')
+		var expected = 'E18CBEA'
+
+		it('should return hash in a single step', function (done) {
+			var h = XXH.h32( input, seed ).toString(16).toUpperCase()
+
+			assert.equal( h, expected )
+			done()
+		})
+
+		it('should return hash in many steps', function (done) {
+			var H = XXH.h32( seed )
+			var h = H.update( input ).digest().toString(16).toUpperCase()
+
+			assert.equal( h, expected )
+			done()
+		})
+
+	})
+
+	describe('with small input', function () {
+		var input = 'abc'
+		var expected = '32D153FF' // Computed with xxHash C version
+
+		it('should return hash in a single step', function (done) {
+			var h = XXH.h32( input, seed ).toString(16).toUpperCase()
+
+			assert.equal( h, expected )
+			done()
+		})
+
+		it('should return hash in many steps', function (done) {
+			var H = XXH.h32( seed )
+			var h = H.update( input ).digest().toString(16).toUpperCase()
+
+			assert.equal( h, expected )
+			done()
+		})
+
+	})
+
+	describe('with medium input', function () {
+		var input = Array(1000).join('abc')
+		var expected = '89DA9B6E'
+
+		it('should return hash in a single step', function (done) {
+			var h = XXH.h32( input, seed ).toString(16).toUpperCase()
+
+			assert.equal( h, expected )
+			done()
+		})
+
+		it('should return hash in many steps', function (done) {
+			var H = XXH.h32( seed )
+			var h = H.update( input ).digest().toString(16).toUpperCase()
+
+			assert.equal( h, expected )
+			done()
+		})
+
+	})
+
+	describe('with split medium input', function () {
+		var input = Array(1000).join('abc')
+		var expected = '89DA9B6E'
+
+		it('should return hash with split input < 16', function (done) {
+			var H = XXH.h32( seed )
+			var h = H
+				.update( input.slice(0, 10) )
+				.update( input.slice(10) )
+				.digest().toString(16).toUpperCase()
+
+			assert.equal( h, expected )
+			done()
+		})
+
+		it('should return hash with split input = 16', function (done) {
+			var H = XXH.h32( seed )
+			var h = H
+				.update( input.slice(0, 16) )
+				.update( input.slice(16) )
+				.digest().toString(16).toUpperCase()
+
+			assert.equal( h, expected )
+			done()
+		})
+
+		it('should return hash with split input > 16', function (done) {
+			var H = XXH.h32( seed )
+			var h = H
+				.update( input.slice(0, 20) )
+				.update( input.slice(20) )
+				.digest().toString(16).toUpperCase()
+
+			assert.equal( h, expected )
+			done()
+		})
+
+	})
+
+	describe('with utf-8 strings', function () {
+		var input = 'heiå'
+		var expected = 'DB5ABCCC' // Computed with xxHash C version
+
+		it('should return hash', function (done) {
+			var h = XXH.h32( input, seed ).toString(16).toUpperCase()
+
+			assert.equal( h, expected )
+			done()
+		})
+
+		it('should return hash in many steps', function (done) {
+			var H = XXH.h32( seed )
+			var h = H.update( input ).digest().toString(16).toUpperCase()
+
+			assert.equal( h, expected )
+			done()
+		})
+
+	})
+
+	describe('with utf-8 strings', function () {
+		var input = 'κόσμε'
+		var expected = 'D855F606' // Computed with xxHash C version
+
+		it('should return hash', function (done) {
+			var h = XXH.h32( input, seed ).toString(16).toUpperCase()
+
+			assert.equal( h, expected )
+			done()
+		})
+
+		it('should return hash in many steps', function (done) {
+			var H = XXH.h32( seed )
+			var h = H.update( input ).digest().toString(16).toUpperCase()
+
+			assert.equal( h, expected )
+			done()
+		})
+
+	})
+
+})