protobuf/js/binary/writer_test.js

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// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc. All rights reserved.
// https://developers.google.com/protocol-buffers/
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
/**
* @fileoverview Test cases for jspb's binary protocol buffer writer. In
* practice BinaryWriter is used to drive the Decoder and Reader test cases,
* so only writer-specific tests are here.
*
* Test suite is written using Jasmine -- see http://jasmine.github.io/
*
* @author aappleby@google.com (Austin Appleby)
*/
goog.require('goog.crypt');
goog.require('goog.testing.asserts');
goog.require('jspb.BinaryConstants');
goog.require('jspb.BinaryReader');
goog.require('jspb.BinaryWriter');
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goog.require('jspb.utils');
/**
* @param {function()} func This function should throw an error when run.
*/
function assertFails(func) {
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assertThrows(func);
}
describe('binaryWriterTest', function() {
/**
* Verifies that misuse of the writer class triggers assertions.
*/
it('testWriteErrors', function() {
// Submessages with invalid field indices should assert.
var writer = new jspb.BinaryWriter();
var dummyMessage = /** @type {!jspb.BinaryMessage} */({});
assertFails(function() {
writer.writeMessage(-1, dummyMessage, goog.nullFunction);
});
// Writing invalid field indices should assert.
writer = new jspb.BinaryWriter();
assertFails(function() {writer.writeUint64(-1, 1);});
// Writing out-of-range field values should assert.
writer = new jspb.BinaryWriter();
assertFails(function() {writer.writeInt32(1, -Infinity);});
assertFails(function() {writer.writeInt32(1, Infinity);});
assertFails(function() {writer.writeInt64(1, -Infinity);});
assertFails(function() {writer.writeInt64(1, Infinity);});
assertFails(function() {writer.writeUint32(1, -1);});
assertFails(function() {writer.writeUint32(1, Infinity);});
assertFails(function() {writer.writeUint64(1, -1);});
assertFails(function() {writer.writeUint64(1, Infinity);});
assertFails(function() {writer.writeSint32(1, -Infinity);});
assertFails(function() {writer.writeSint32(1, Infinity);});
assertFails(function() {writer.writeSint64(1, -Infinity);});
assertFails(function() {writer.writeSint64(1, Infinity);});
assertFails(function() {writer.writeFixed32(1, -1);});
assertFails(function() {writer.writeFixed32(1, Infinity);});
assertFails(function() {writer.writeFixed64(1, -1);});
assertFails(function() {writer.writeFixed64(1, Infinity);});
assertFails(function() {writer.writeSfixed32(1, -Infinity);});
assertFails(function() {writer.writeSfixed32(1, Infinity);});
assertFails(function() {writer.writeSfixed64(1, -Infinity);});
assertFails(function() {writer.writeSfixed64(1, Infinity);});
});
/**
* Basic test of retrieving the result as a Uint8Array buffer
*/
it('testGetResultBuffer', function() {
var expected = '0864120b48656c6c6f20776f726c641a0301020320c801';
var writer = new jspb.BinaryWriter();
writer.writeUint32(1, 100);
writer.writeString(2, 'Hello world');
writer.writeBytes(3, new Uint8Array([1, 2, 3]));
writer.writeUint32(4, 200);
var buffer = writer.getResultBuffer();
assertEquals(expected, goog.crypt.byteArrayToHex(buffer));
});
/**
* Tests websafe encodings for base64 strings.
*/
it('testWebSafeOption', function() {
var writer = new jspb.BinaryWriter();
writer.writeBytes(1, new Uint8Array([127]));
assertEquals('CgF/', writer.getResultBase64String());
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assertEquals(
'CgF/',
writer.getResultBase64String(goog.crypt.base64.Alphabet.DEFAULT));
assertEquals(
'CgF_',
writer.getResultBase64String(
goog.crypt.base64.Alphabet.WEBSAFE_NO_PADDING));
});
it('writes split 64 fields', function() {
var writer = new jspb.BinaryWriter();
writer.writeSplitVarint64(1, 0x1, 0x2);
writer.writeSplitVarint64(1, 0xFFFFFFFF, 0xFFFFFFFF);
writer.writeSplitFixed64(2, 0x1, 0x2);
writer.writeSplitFixed64(2, 0xFFFFFFF0, 0xFFFFFFFF);
function lo(i) {
return i + 1;
}
function hi(i) {
return i + 2;
}
writer.writeRepeatedSplitVarint64(3, [0, 1, 2], lo, hi);
writer.writeRepeatedSplitFixed64(4, [0, 1, 2], lo, hi);
writer.writePackedSplitVarint64(5, [0, 1, 2], lo, hi);
writer.writePackedSplitFixed64(6, [0, 1, 2], lo, hi);
function bitsAsArray(lowBits, highBits) {
return [lowBits >>> 0, highBits >>> 0];
}
var reader = jspb.BinaryReader.alloc(writer.getResultBuffer());
reader.nextField();
expect(reader.getFieldNumber()).toEqual(1);
expect(reader.readSplitVarint64(bitsAsArray)).toEqual([0x1, 0x2]);
reader.nextField();
expect(reader.getFieldNumber()).toEqual(1);
expect(reader.readSplitVarint64(bitsAsArray)).toEqual([
0xFFFFFFFF, 0xFFFFFFFF
]);
reader.nextField();
expect(reader.getFieldNumber()).toEqual(2);
expect(reader.readSplitFixed64(bitsAsArray)).toEqual([0x1, 0x2]);
reader.nextField();
expect(reader.getFieldNumber()).toEqual(2);
expect(reader.readSplitFixed64(bitsAsArray)).toEqual([
0xFFFFFFF0, 0xFFFFFFFF
]);
for (let i = 0; i < 3; i++) {
reader.nextField();
expect(reader.getFieldNumber()).toEqual(3);
expect(reader.readSplitVarint64(bitsAsArray)).toEqual([i + 1, i + 2]);
}
for (let i = 0; i < 3; i++) {
reader.nextField();
expect(reader.getFieldNumber()).toEqual(4);
expect(reader.readSplitFixed64(bitsAsArray)).toEqual([i + 1, i + 2]);
}
reader.nextField();
expect(reader.getFieldNumber()).toEqual(5);
expect(reader.readPackedInt64String()).toEqual([
String(2 * 2 ** 32 + 1),
String(3 * 2 ** 32 + 2),
String(4 * 2 ** 32 + 3),
]);
reader.nextField();
expect(reader.getFieldNumber()).toEqual(6);
expect(reader.readPackedFixed64String()).toEqual([
String(2 * 2 ** 32 + 1),
String(3 * 2 ** 32 + 2),
String(4 * 2 ** 32 + 3),
]);
});
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it('writes zigzag 64 fields', function() {
// Test cases directly from the protobuf dev guide.
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// https://engdoc.corp.google.com/eng/howto/protocolbuffers/developerguide/encoding.shtml?cl=head#types
var testCases = [
{original: '0', zigzag: '0'},
{original: '-1', zigzag: '1'},
{original: '1', zigzag: '2'},
{original: '-2', zigzag: '3'},
{original: '2147483647', zigzag: '4294967294'},
{original: '-2147483648', zigzag: '4294967295'},
// 64-bit extremes, not in dev guide.
{original: '9223372036854775807', zigzag: '18446744073709551614'},
{original: '-9223372036854775808', zigzag: '18446744073709551615'},
];
function decimalToLowBits(v) {
jspb.utils.splitDecimalString(v);
return jspb.utils.split64Low >>> 0;
}
function decimalToHighBits(v) {
jspb.utils.splitDecimalString(v);
return jspb.utils.split64High >>> 0;
}
var writer = new jspb.BinaryWriter();
testCases.forEach(function(c) {
writer.writeSint64String(1, c.original);
writer.writeSintHash64(1, jspb.utils.decimalStringToHash64(c.original));
jspb.utils.splitDecimalString(c.original);
writer.writeSplitZigzagVarint64(
1, jspb.utils.split64Low, jspb.utils.split64High);
});
writer.writeRepeatedSint64String(2, testCases.map(function(c) {
return c.original;
}));
writer.writeRepeatedSintHash64(3, testCases.map(function(c) {
return jspb.utils.decimalStringToHash64(c.original);
}));
writer.writeRepeatedSplitZigzagVarint64(
4, testCases.map(function(c) {
return c.original;
}),
decimalToLowBits, decimalToHighBits);
writer.writePackedSint64String(5, testCases.map(function(c) {
return c.original;
}));
writer.writePackedSintHash64(6, testCases.map(function(c) {
return jspb.utils.decimalStringToHash64(c.original);
}));
writer.writePackedSplitZigzagVarint64(
7, testCases.map(function(c) {
return c.original;
}),
decimalToLowBits, decimalToHighBits);
// Verify by reading the stream as normal int64 fields and checking with
// the canonical zigzag encoding of each value.
var reader = jspb.BinaryReader.alloc(writer.getResultBuffer());
testCases.forEach(function(c) {
reader.nextField();
expect(reader.getFieldNumber()).toEqual(1);
expect(reader.readUint64String()).toEqual(c.zigzag);
reader.nextField();
expect(reader.getFieldNumber()).toEqual(1);
expect(reader.readUint64String()).toEqual(c.zigzag);
reader.nextField();
expect(reader.getFieldNumber()).toEqual(1);
expect(reader.readUint64String()).toEqual(c.zigzag);
});
testCases.forEach(function(c) {
reader.nextField();
expect(reader.getFieldNumber()).toEqual(2);
expect(reader.readUint64String()).toEqual(c.zigzag);
});
testCases.forEach(function(c) {
reader.nextField();
expect(reader.getFieldNumber()).toEqual(3);
expect(reader.readUint64String()).toEqual(c.zigzag);
});
testCases.forEach(function(c) {
reader.nextField();
expect(reader.getFieldNumber()).toEqual(4);
expect(reader.readUint64String()).toEqual(c.zigzag);
});
reader.nextField();
expect(reader.getFieldNumber()).toEqual(5);
expect(reader.readPackedUint64String()).toEqual(testCases.map(function(c) {
return c.zigzag;
}));
reader.nextField();
expect(reader.getFieldNumber()).toEqual(6);
expect(reader.readPackedUint64String()).toEqual(testCases.map(function(c) {
return c.zigzag;
}));
reader.nextField();
expect(reader.getFieldNumber()).toEqual(7);
expect(reader.readPackedUint64String()).toEqual(testCases.map(function(c) {
return c.zigzag;
}));
});
it('writes float32 fields', function() {
var testCases = [
0, 1, -1, jspb.BinaryConstants.FLOAT32_MIN,
-jspb.BinaryConstants.FLOAT32_MIN, jspb.BinaryConstants.FLOAT32_MAX,
-jspb.BinaryConstants.FLOAT32_MAX, 3.1415927410125732, Infinity,
-Infinity, NaN
];
var writer = new jspb.BinaryWriter();
testCases.forEach(function(f) {
writer.writeFloat(1, f);
});
var reader = jspb.BinaryReader.alloc(writer.getResultBuffer());
testCases.forEach(function(f) {
reader.nextField();
expect(reader.getFieldNumber()).toEqual(1);
if (isNaN(f)) {
expect(isNaN(reader.readFloat())).toEqual(true);
} else {
expect(reader.readFloat()).toEqual(f);
}
});
});
it('writes double fields', function() {
var testCases = [
0, 1, -1, Number.MAX_SAFE_INTEGER, Number.MIN_SAFE_INTEGER,
Number.MAX_VALUE, Number.MIN_VALUE, jspb.BinaryConstants.FLOAT32_MIN,
-jspb.BinaryConstants.FLOAT32_MIN, jspb.BinaryConstants.FLOAT32_MAX,
-jspb.BinaryConstants.FLOAT32_MAX, Math.PI, Infinity, -Infinity, NaN
];
var writer = new jspb.BinaryWriter();
testCases.forEach(function(f) {
writer.writeDouble(1, f);
});
var reader = jspb.BinaryReader.alloc(writer.getResultBuffer());
testCases.forEach(function(f) {
reader.nextField();
expect(reader.getFieldNumber()).toEqual(1);
if (isNaN(f)) {
expect(isNaN(reader.readDouble())).toEqual(true);
} else {
expect(reader.readDouble()).toEqual(f);
}
});
});
});