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test: refactor test-file-write-stream3 #6050

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test: refactor test-file-write-stream3 #6050

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31 changes: 9 additions & 22 deletions test/parallel/test-file-write-stream3.js
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Original file line number Diff line number Diff line change
Expand Up @@ -5,21 +5,20 @@ const path = require('path');
const fs = require('fs');


var filepath = path.join(common.tmpDir, 'write_pos.txt');
const filepath = path.join(common.tmpDir, 'write_pos.txt');


const cb_expected = 'write open close write open close write open close ';
let cb_occurred = '';
var cb_occurred = '';

var fileDataInitial = 'abcdefghijklmnopqrstuvwxyz';
const fileDataInitial = 'abcdefghijklmnopqrstuvwxyz';

var fileDataExpected_1 = 'abcdefghijklmnopqrstuvwxyz';
var fileDataExpected_2 = 'abcdefghij123456qrstuvwxyz';
var fileDataExpected_3 = 'abcdefghij\u2026\u2026qrstuvwxyz';
const fileDataExpected_1 = 'abcdefghijklmnopqrstuvwxyz';
const fileDataExpected_2 = 'abcdefghij123456qrstuvwxyz';
const fileDataExpected_3 = 'abcdefghij\u2026\u2026qrstuvwxyz';


process.on('exit', function() {
removeTestFile();
if (cb_occurred !== cb_expected) {
console.log(' Test callback events missing or out of order:');
console.log(' expected: %j', cb_expected);
Expand All @@ -30,12 +29,6 @@ process.on('exit', function() {
}
});

function removeTestFile() {
try {
fs.unlinkSync(filepath);
} catch (ex) { }
}


common.refreshTmpDir();

Expand Down Expand Up @@ -164,20 +157,14 @@ function run_test_3() {
}


function run_test_4() {
var options;

options = { start: -5,
flags: 'r+' };

const run_test_4 = common.mustCall(function() {
// Error: start must be >= zero
assert.throws(
function() {
file = fs.createWriteStream(filepath, options);
fs.createWriteStream(filepath, { start: -5, flags: 'r+' });
},
/"start" must be/
);

}
});

run_test_1();