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test: improve test-fs-write-stream-throw-type #10779

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test: improve test-fs-write-stream-throw-type #10779

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36 changes: 24 additions & 12 deletions test/parallel/test-fs-write-stream-throw-type-error.js
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Original file line number Diff line number Diff line change
Expand Up @@ -4,32 +4,44 @@ const assert = require('assert');
const fs = require('fs');
const path = require('path');

const numberError = new RegExp('^TypeError: "options" must be a string ' +
'or an object, got number instead.$');

const booleanError = new RegExp('^TypeError: "options" must be a string ' +
'or an object, got boolean instead.$');

const example = path.join(common.tmpDir, 'dummy');

common.refreshTmpDir();

assert.doesNotThrow(function() {
assert.doesNotThrow(() => {
fs.createWriteStream(example, undefined);
});
assert.doesNotThrow(function() {

assert.doesNotThrow(() => {
fs.createWriteStream(example, null);
});
assert.doesNotThrow(function() {

assert.doesNotThrow(() => {
fs.createWriteStream(example, 'utf8');
});
assert.doesNotThrow(function() {

assert.doesNotThrow(() => {
fs.createWriteStream(example, {encoding: 'utf8'});
});

assert.throws(function() {
assert.throws(() => {
fs.createWriteStream(example, 123);
}, /"options" must be a string or an object/);
assert.throws(function() {
}, numberError);

assert.throws(() => {
fs.createWriteStream(example, 0);
}, /"options" must be a string or an object/);
assert.throws(function() {
}, numberError);

assert.throws(() => {
fs.createWriteStream(example, true);
}, /"options" must be a string or an object/);
assert.throws(function() {
}, booleanError);

assert.throws(() => {
fs.createWriteStream(example, false);
}, /"options" must be a string or an object/);
}, booleanError);