js/binary/writer_test.js - third_party/protobuf - Git at Google

 // 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');
 goog.require('jspb.utils');
 goog.require('goog.crypt.base64');
 goog.requireType('jspb.BinaryMessage');

 /**
  * @param {function()} func This function should throw an error when run.
  */
 function assertFails(func) {
   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());
     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),
     ]);
   });

   it('writes zigzag 64 fields', function() {
     // Test cases directly from the protobuf dev guide.
     // 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);
       }
     });
   });
 });
	// 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');
	goog.require('jspb.utils');
	goog.require('goog.crypt.base64');
	goog.requireType('jspb.BinaryMessage');

	/**
	* @param {function()} func This function should throw an error when run.
	*/
	function assertFails(func) {
	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());
	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),
	]);
	});

	it('writes zigzag 64 fields', function() {
	// Test cases directly from the protobuf dev guide.
	// 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);
	}
	});
	});
	});