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test: improve readline test coverage for tty

Adds the following tests for tty readline:
- go to beginning and end of line
- wordLeft
- wordRight
- deleteWordLeft
- deleteWordRight

PR-URL: #12064
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: James M Snell <jasnell@gmail.com>
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claudiorodriguez authored and BridgeAR committed Mar 27, 2017
1 parent 9d7574e commit 7a953929fef5a7892d4697ed73e6fd314055beee
Showing with 136 additions and 0 deletions.
  1. +136 −0 test/parallel/test-readline-interface.js
@@ -527,6 +527,142 @@ function isWarned(emitter) {
assert.strictEqual(cursorPos.cols, expectedLines.slice(-1)[0].length);
rli.close();
}
{
// Beginning and end of line
const fi = new FakeInput();
const rli = new readline.Interface({
input: fi,
output: fi,
prompt: '',
terminal: terminal
});
fi.emit('data', 'the quick brown fox');
fi.emit('keypress', '.', { ctrl: true, name: 'a' });
let cursorPos = rli._getCursorPos();
assert.strictEqual(cursorPos.rows, 0);
assert.strictEqual(cursorPos.cols, 0);
fi.emit('keypress', '.', { ctrl: true, name: 'e' });
cursorPos = rli._getCursorPos();
assert.strictEqual(cursorPos.rows, 0);
assert.strictEqual(cursorPos.cols, 19);
rli.close();
}
{
// `wordLeft` and `wordRight`
const fi = new FakeInput();
const rli = new readline.Interface({
input: fi,
output: fi,
prompt: '',
terminal: terminal
});
fi.emit('data', 'the quick brown fox');
fi.emit('keypress', '.', { ctrl: true, name: 'left' });
let cursorPos = rli._getCursorPos();
assert.strictEqual(cursorPos.rows, 0);
assert.strictEqual(cursorPos.cols, 16);
fi.emit('keypress', '.', { meta: true, name: 'b' });
cursorPos = rli._getCursorPos();
assert.strictEqual(cursorPos.rows, 0);
assert.strictEqual(cursorPos.cols, 10);
fi.emit('keypress', '.', { ctrl: true, name: 'right' });
cursorPos = rli._getCursorPos();
assert.strictEqual(cursorPos.rows, 0);
assert.strictEqual(cursorPos.cols, 16);
fi.emit('keypress', '.', { meta: true, name: 'f' });
cursorPos = rli._getCursorPos();
assert.strictEqual(cursorPos.rows, 0);
assert.strictEqual(cursorPos.cols, 19);
rli.close();
}
{
// `deleteWordLeft`
[
{ ctrl: true, name: 'w' },
{ ctrl: true, name: 'backspace' },
{ meta: true, name: 'backspace' }
]
.forEach((deleteWordLeftKey) => {
let fi = new FakeInput();
let rli = new readline.Interface({
input: fi,
output: fi,
prompt: '',
terminal: terminal
});
fi.emit('data', 'the quick brown fox');
fi.emit('keypress', '.', { ctrl: true, name: 'left' });
rli.on('line', common.mustCall((line) => {
assert.strictEqual(line, 'the quick fox');
}));
fi.emit('keypress', '.', deleteWordLeftKey);
fi.emit('data', '\n');
rli.close();
// No effect if pressed at beginning of line
fi = new FakeInput();
rli = new readline.Interface({
input: fi,
output: fi,
prompt: '',
terminal: terminal
});
fi.emit('data', 'the quick brown fox');
fi.emit('keypress', '.', { ctrl: true, name: 'a' });
rli.on('line', common.mustCall((line) => {
assert.strictEqual(line, 'the quick brown fox');
}));
fi.emit('keypress', '.', deleteWordLeftKey);
fi.emit('data', '\n');
rli.close();
});
}
{
// `deleteWordRight`
[
{ ctrl: true, name: 'delete' },
{ meta: true, name: 'delete' },
{ meta: true, name: 'd' }
]
.forEach((deleteWordRightKey) => {
let fi = new FakeInput();
let rli = new readline.Interface({
input: fi,
output: fi,
prompt: '',
terminal: terminal
});
fi.emit('data', 'the quick brown fox');
fi.emit('keypress', '.', { ctrl: true, name: 'left' });
fi.emit('keypress', '.', { ctrl: true, name: 'left' });
rli.on('line', common.mustCall((line) => {
assert.strictEqual(line, 'the quick fox');
}));
fi.emit('keypress', '.', deleteWordRightKey);
fi.emit('data', '\n');
rli.close();
// No effect if pressed at end of line
fi = new FakeInput();
rli = new readline.Interface({
input: fi,
output: fi,
prompt: '',
terminal: terminal
});
fi.emit('data', 'the quick brown fox');
rli.on('line', common.mustCall((line) => {
assert.strictEqual(line, 'the quick brown fox');
}));
fi.emit('keypress', '.', deleteWordRightKey);
fi.emit('data', '\n');
rli.close();
});
}
}
// isFullWidthCodePoint() should return false for non-numeric values

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