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'use strict';
const common = require('../common');
const fs = require('fs');
const assert = require('assert');
const fixtures = require('../common/fixtures');
const filepath = fixtures.path('x.txt');
const fd = fs.openSync(filepath, 'r');
const expected = 'xyz\n';
// Error must be thrown with string
assert.throws(
() => fs.read(fd, expected.length, 0, 'utf-8', common.mustNotCall()),
{
code: 'ERR_INVALID_ARG_TYPE',
name: 'TypeError',
message: 'The "buffer" argument must be an instance of Buffer, ' +
'TypedArray, or DataView. Received type number (4)'
}
);
[true, null, undefined, () => {}, {}].forEach((value) => {
assert.throws(() => {
fs.read(value,
Buffer.allocUnsafe(expected.length),
0,
expected.length,
0,
common.mustNotCall());
}, {
code: 'ERR_INVALID_ARG_TYPE',
name: 'TypeError'
});
});
assert.throws(() => {
fs.read(fd,
Buffer.allocUnsafe(expected.length),
-1,
expected.length,
0,
common.mustNotCall());
}, {
code: 'ERR_OUT_OF_RANGE',
name: 'RangeError',
});
assert.throws(() => {
fs.read(fd,
Buffer.allocUnsafe(expected.length),
NaN,
expected.length,
0,
common.mustNotCall());
}, {
code: 'ERR_OUT_OF_RANGE',
name: 'RangeError',
message: 'The value of "offset" is out of range. It must be an integer. ' +
'Received NaN'
});
assert.throws(() => {
fs.read(fd,
Buffer.allocUnsafe(expected.length),
0,
-1,
0,
common.mustNotCall());
}, {
code: 'ERR_OUT_OF_RANGE',
name: 'RangeError',
message: 'The value of "length" is out of range. ' +
'It must be >= 0. Received -1'
});
[true, () => {}, {}, ''].forEach((value) => {
assert.throws(() => {
fs.read(fd,
Buffer.allocUnsafe(expected.length),
0,
expected.length,
value,
common.mustNotCall());
}, {
code: 'ERR_INVALID_ARG_TYPE',
name: 'TypeError'
});
});
[0.5, 2 ** 53, 2n ** 63n].forEach((value) => {
assert.throws(() => {
fs.read(fd,
Buffer.allocUnsafe(expected.length),
0,
expected.length,
value,
common.mustNotCall());
}, {
code: 'ERR_OUT_OF_RANGE',
name: 'RangeError'
});
});
fs.read(fd,
Buffer.allocUnsafe(expected.length),
0,
expected.length,
0n,
common.mustSucceed());
fs.read(fd,
Buffer.allocUnsafe(expected.length),
0,
expected.length,
2n ** 53n - 1n,
common.mustCall((err) => {
if (err) {
assert.strictEqual(err.code, 'EFBIG');
}
}));
assert.throws(
() => fs.readSync(fd, expected.length, 0, 'utf-8'),
{
code: 'ERR_INVALID_ARG_TYPE',
name: 'TypeError',
message: 'The "buffer" argument must be an instance of Buffer, ' +
'TypedArray, or DataView. Received type number (4)'
}
);
[true, null, undefined, () => {}, {}].forEach((value) => {
assert.throws(() => {
fs.readSync(value,
Buffer.allocUnsafe(expected.length),
0,
expected.length,
0);
}, {
code: 'ERR_INVALID_ARG_TYPE',
name: 'TypeError'
});
});
assert.throws(() => {
fs.readSync(fd,
Buffer.allocUnsafe(expected.length),
-1,
expected.length,
0);
}, {
code: 'ERR_OUT_OF_RANGE',
name: 'RangeError',
});
assert.throws(() => {
fs.readSync(fd,
Buffer.allocUnsafe(expected.length),
NaN,
expected.length,
0);
}, {
code: 'ERR_OUT_OF_RANGE',
name: 'RangeError',
message: 'The value of "offset" is out of range. It must be an integer. ' +
'Received NaN'
});
assert.throws(() => {
fs.readSync(fd,
Buffer.allocUnsafe(expected.length),
0,
-1,
0);
}, {
code: 'ERR_OUT_OF_RANGE',
name: 'RangeError',
message: 'The value of "length" is out of range. ' +
'It must be >= 0. Received -1'
});
assert.throws(() => {
fs.readSync(fd,
Buffer.allocUnsafe(expected.length),
0,
expected.length + 1,
0);
}, {
code: 'ERR_OUT_OF_RANGE',
name: 'RangeError',
message: 'The value of "length" is out of range. ' +
'It must be <= 4. Received 5'
});
[true, () => {}, {}, ''].forEach((value) => {
assert.throws(() => {
fs.readSync(fd,
Buffer.allocUnsafe(expected.length),
0,
expected.length,
value);
}, {
code: 'ERR_INVALID_ARG_TYPE',
name: 'TypeError'
});
});
[0.5, 2 ** 53, 2n ** 63n].forEach((value) => {
assert.throws(() => {
fs.readSync(fd,
Buffer.allocUnsafe(expected.length),
0,
expected.length,
value);
}, {
code: 'ERR_OUT_OF_RANGE',
name: 'RangeError'
});
});
fs.readSync(fd,
Buffer.allocUnsafe(expected.length),
0,
expected.length,
0n);
try {
fs.readSync(fd,
Buffer.allocUnsafe(expected.length),
0,
expected.length,
2n ** 53n - 1n);
} catch (err) {
// On systems where max file size is below 2^53-1, we'd expect a EFBIG error.
// This is not using `assert.throws` because the above call should not raise
// any error on systems that allows file of that size.
if (err.code !== 'EFBIG') throw err;
}
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