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test: move test-readuint to test-buffer-readuint
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Backport of a changed test from
#20054

PR-URL: #21170
Reviewed-By: Colin Ihrig <[email protected]>
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targos committed Jun 13, 2018
1 parent 85dc9ac commit 2ff4704
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167 changes: 167 additions & 0 deletions test/parallel/test-buffer-readuint.js
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'use strict';

require('../common');
const assert = require('assert');

// Test OOB
{
const buffer = Buffer.alloc(4);

['UInt8', 'UInt16BE', 'UInt16LE', 'UInt32BE', 'UInt32LE'].forEach((fn) => {

// Verify that default offset works fine.
buffer[`read${fn}`](undefined);
buffer[`read${fn}`]();

['', '0', null, {}, [], () => {}, true, false].forEach((o) => {
assert.throws(
() => buffer[`read${fn}`](o),
{
code: 'ERR_INVALID_ARG_TYPE',
name: 'TypeError [ERR_INVALID_ARG_TYPE]'
});
});

[Infinity, -1, -4294967295].forEach((offset) => {
assert.throws(
() => buffer[`read${fn}`](offset),
{
code: 'ERR_OUT_OF_RANGE',
name: 'RangeError [ERR_OUT_OF_RANGE]'
});
});

[NaN, 1.01].forEach((offset) => {
assert.throws(
() => buffer[`read${fn}`](offset),
{
code: 'ERR_OUT_OF_RANGE',
name: 'RangeError [ERR_OUT_OF_RANGE]',
message: 'The value of "offset" is out of range. ' +
`It must be an integer. Received ${offset}`
});
});
});
}

// Test 8 bit unsigned integers
{
const data = Buffer.from([0xff, 0x2a, 0x2a, 0x2a]);
assert.strictEqual(255, data.readUInt8(0));
assert.strictEqual(42, data.readUInt8(1));
assert.strictEqual(42, data.readUInt8(2));
assert.strictEqual(42, data.readUInt8(3));
}

// Test 16 bit unsigned integers
{
const data = Buffer.from([0x00, 0x2a, 0x42, 0x3f]);
assert.strictEqual(0x2a, data.readUInt16BE(0));
assert.strictEqual(0x2a42, data.readUInt16BE(1));
assert.strictEqual(0x423f, data.readUInt16BE(2));
assert.strictEqual(0x2a00, data.readUInt16LE(0));
assert.strictEqual(0x422a, data.readUInt16LE(1));
assert.strictEqual(0x3f42, data.readUInt16LE(2));

data[0] = 0xfe;
data[1] = 0xfe;
assert.strictEqual(0xfefe, data.readUInt16BE(0));
assert.strictEqual(0xfefe, data.readUInt16LE(0));
}

// Test 32 bit unsigned integers
{
const data = Buffer.from([0x32, 0x65, 0x42, 0x56, 0x23, 0xff]);
assert.strictEqual(0x32654256, data.readUInt32BE(0));
assert.strictEqual(0x65425623, data.readUInt32BE(1));
assert.strictEqual(0x425623ff, data.readUInt32BE(2));
assert.strictEqual(0x56426532, data.readUInt32LE(0));
assert.strictEqual(0x23564265, data.readUInt32LE(1));
assert.strictEqual(0xff235642, data.readUInt32LE(2));
}

// Test UInt
{
const buffer = Buffer.from([0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08]);

assert.strictEqual(buffer.readUIntLE(0), 0x01);
assert.strictEqual(buffer.readUIntLE(0, 1), 0x01);
assert.strictEqual(buffer.readUIntBE(0), 0x01);
assert.strictEqual(buffer.readUIntBE(0, 1), 0x01);
assert.strictEqual(buffer.readUIntLE(0, 3), 0x030201);
assert.strictEqual(buffer.readUIntBE(0, 3), 0x010203);
assert.strictEqual(buffer.readUIntLE(0, 5), 0x0504030201);
assert.strictEqual(buffer.readUIntBE(0, 5), 0x0102030405);
assert.strictEqual(buffer.readUIntLE(0, 6), 0x060504030201);
assert.strictEqual(buffer.readUIntBE(0, 6), 0x010203040506);
assert.strictEqual(buffer.readUIntLE(1, 6), 0x070605040302);
assert.strictEqual(buffer.readUIntBE(1, 6), 0x020304050607);
assert.strictEqual(buffer.readUIntLE(2, 6), 0x080706050403);
assert.strictEqual(buffer.readUIntBE(2, 6), 0x030405060708);

// Check byteLength.
['readUIntBE', 'readUIntLE'].forEach((fn) => {
['', '0', null, {}, [], () => {}, true, false].forEach((len) => {
assert.throws(
() => buffer[fn](0, len),
{ code: 'ERR_INVALID_ARG_TYPE' });
});

[Infinity, -1].forEach((byteLength) => {
assert.throws(
() => buffer[fn](0, byteLength),
{
code: 'ERR_OUT_OF_RANGE',
message: 'The value of "byteLength" is out of range. ' +
`It must be >= 1 and <= 6. Received ${byteLength}`
});
});

[NaN, 1.01].forEach((byteLength) => {
assert.throws(
() => buffer[fn](0, byteLength),
{
code: 'ERR_OUT_OF_RANGE',
name: 'RangeError [ERR_OUT_OF_RANGE]',
message: 'The value of "byteLength" is out of range. ' +
`It must be an integer. Received ${byteLength}`
});
});
});

// Test 1 to 6 bytes.
for (let i = 1; i < 6; i++) {
['readUIntBE', 'readUIntLE'].forEach((fn) => {
['', '0', null, {}, [], () => {}, true, false].forEach((o) => {
assert.throws(
() => buffer[fn](o, i),
{
code: 'ERR_INVALID_ARG_TYPE',
name: 'TypeError [ERR_INVALID_ARG_TYPE]'
});
});

[Infinity, -1, -4294967295].forEach((offset) => {
assert.throws(
() => buffer[fn](offset, i),
{
code: 'ERR_OUT_OF_RANGE',
name: 'RangeError [ERR_OUT_OF_RANGE]',
message: 'The value of "offset" is out of range. ' +
`It must be >= 0 and <= ${8 - i}. Received ${offset}`
});
});

[NaN, 1.01].forEach((offset) => {
assert.throws(
() => buffer[fn](offset, i),
{
code: 'ERR_OUT_OF_RANGE',
name: 'RangeError [ERR_OUT_OF_RANGE]',
message: 'The value of "offset" is out of range. ' +
`It must be an integer. Received ${offset}`
});
});
});
}
}
110 changes: 0 additions & 110 deletions test/parallel/test-readuint.js

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