test('Buffered Content - Appending Output', () => {
const bufferedContent = new BufferedContent();
bufferedContent.append('first');
const firstDelta = bufferedContent.getDelta();
bufferedContent.append('second');
bufferedContent.append('third');
const secondDelta = bufferedContent.getDelta(firstDelta);
assert.equal(secondDelta.append, true);
assert.equal(secondDelta.value, 'secondthird');
bufferedContent.append('fourth');
bufferedContent.append('fifth');
assert.equal(bufferedContent.getDelta(firstDelta).value, 'secondthirdfourthfifth');
assert.equal(bufferedContent.getDelta(secondDelta).value, 'fourthfifth');
});
test('Buffered Content - Simple', () => {
const bufferedContent = new BufferedContent();
bufferedContent.append('first');
bufferedContent.append('second');
bufferedContent.append('third');
const delta = bufferedContent.getDelta();
assert.equal(bufferedContent.getDelta().value, 'firstsecondthird');
bufferedContent.clear();
assert.equal(bufferedContent.getDelta().value, '');
assert.equal(bufferedContent.getDelta(delta).value, '');
});
test('Buffered Content - Lots of Output', function () {
this.timeout(10000);
const bufferedContent = new BufferedContent();
bufferedContent.append('first line');
const firstDelta = bufferedContent.getDelta();
let longString = '';
for (let i = 0; i < 5000; i++) {
bufferedContent.append(i.toString());
longString += i.toString();
}
const secondDelta = bufferedContent.getDelta(firstDelta);
assert.equal(secondDelta.append, true);
assert.equal(secondDelta.value.substr(secondDelta.value.length - 4), '4999');
longString = longString + longString + longString + longString;
bufferedContent.append(longString);
bufferedContent.append(longString);
const thirdDelta = bufferedContent.getDelta(firstDelta);
assert.equal(!!thirdDelta.append, true);
assert.equal(thirdDelta.value.substr(thirdDelta.value.length - 4), '4999');
bufferedContent.clear();
assert.equal(bufferedContent.getDelta().value, '');
});