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hterm_parser_tests.js
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// Copyright (c) 2015 The Chromium OS Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
'use strict';
/**
* @fileoverview hterm.Parser unit tests.
*/
describe('hterm_parser_tests.js', () => {
/**
* Helper to check parseKeySequence failing behavior.
*
* @param {string} input The key sequence to parse.
* @param {!RegExp} pattern The error message checker.
*/
const negKeySeq = function(input, pattern) {
try {
const p = new hterm.Parser();
p.reset(input);
p.parseKeySequence();
} catch (ex) {
assert.isTrue(!!ex);
assert.match(ex.message, pattern);
return;
}
assert.fail(`Expected failure for: ${input}`);
};
it('sequence-identifiers', () => {
const p = new hterm.Parser();
const checkResult = function(input, output) {
p.reset(input);
const rv = p.parseKeySequence();
assert.equal(rv.keyCode, output);
assert.isFalse(rv.shift);
assert.isFalse(rv.ctrl);
assert.isFalse(rv.alt);
assert.isFalse(rv.meta);
};
checkResult('X', 88);
checkResult('x', 88);
checkResult('ENTER', 13);
checkResult('Ent', 13);
checkResult('esc', 27);
negKeySeq('FOO', /Unknown key: FOO/);
});
it('modifiers', () => {
const p = new hterm.Parser();
const checkResult = function(input, shift, ctrl, alt, meta) {
p.reset(input);
const rv = p.parseKeySequence();
assert.equal(rv.keyCode, 88);
assert.equal(rv.shift, shift);
assert.equal(rv.ctrl, ctrl);
assert.equal(rv.alt, alt);
assert.equal(rv.meta, meta);
};
checkResult('Shift+X', true, false, false, false);
checkResult('Ctrl+X', false, true, false, false);
checkResult('Control+X', false, true, false, false);
checkResult('Alt+X', false, false, true, false);
checkResult('Meta+X', false, false, false, true);
checkResult('SHIFT-X', true, false, false, false);
checkResult('CTRL-X', false, true, false, false);
checkResult('CONTROL-X', false, true, false, false);
checkResult('ALT-X', false, false, true, false);
checkResult('META-X', false, false, false, true);
checkResult('Shift-Ctrl-X', true, true, false, false);
checkResult('ShIfT-cTrL-x', true, true, false, false);
checkResult('Shift-Alt-X', true, false, true, false);
checkResult('Shift-Meta-X', true, false, false, true);
checkResult('Shift-Ctrl-Alt-Meta-X', true, true, true, true);
checkResult('Shift+Ctrl+X', true, true, false, false);
checkResult('ShIfT+cTrL+x', true, true, false, false);
checkResult('Shift+Alt+X', true, false, true, false);
checkResult('Shift+Meta+X', true, false, false, true);
checkResult('Shift+Ctrl+Alt+Meta+X', true, true, true, true);
checkResult('Shift-*-X', true, '*', '*', '*');
checkResult('Shift-Ctrl-*-X', true, true, '*', '*');
checkResult('Shift-Ctrl-Alt-*-X', true, true, true, '*');
checkResult('Shift-Ctrl-Alt-Meta-*-X', true, true, true, true);
negKeySeq('shft-X', /Unknown key: shft$/);
negKeySeq('SHFT-X', /Unknown key: SHFT$/);
negKeySeq('Foo-X', /Unknown key: Foo$/);
negKeySeq('Ctrl-Foo-X', /Unknown key: Foo$/);
negKeySeq('Ctrl-Ctrl-X', /Duplicate modifier: Ctrl$/);
negKeySeq('Control-Ctrl-X', /Duplicate modifier: Ctrl$/);
negKeySeq('Ctrl', /Missing target key$/);
negKeySeq('Ctrl-Alt"', /Missing target key$/);
negKeySeq('Ctrl-', /Missing target key$/);
negKeySeq('Ctrl-X-Alt', /Extra definition after target key$/);
negKeySeq('toString-X', /Unknown key: toString$/);
});
it('keycodes', () => {
const p = new hterm.Parser();
const checkResult = function(input, target, shift, ctrl, alt, meta) {
p.reset(input);
const rv = p.parseKeySequence();
assert.equal(rv.keyCode, target);
assert.equal(rv.shift, shift);
assert.equal(rv.ctrl, ctrl);
assert.equal(rv.alt, alt);
assert.equal(rv.meta, meta);
};
checkResult('88', 88, false, false, false, false);
checkResult('Shift-88', 88, true, false, false, false);
checkResult('Shift-Ctrl-Alt-Meta-88', 88, true, true, true, true);
checkResult('0', 0, false, false, false, false);
checkResult('Shift-0', 0, true, false, false, false);
checkResult('Shift-Ctrl-Alt-Meta-0', 0, true, true, true, true);
checkResult('0x123456789abcdef', 0x123456789abcdef,
false, false, false, false);
checkResult('0xf', 15, false, false, false, false);
checkResult('Ctrl-0xf', 15, false, true, false, false);
checkResult('Ctrl-0x0f', 15, false, true, false, false);
checkResult('Ctrl-Alt-0xf', 15, false, true, true, false);
checkResult('0xff', 255, false, false, false, false);
checkResult('Ctrl-0xff', 255, false, true, false, false);
checkResult('Ctrl-Alt-0xff', 255, false, true, true, false);
});
it('actions', () => {
const p = new hterm.Parser();
const checkResult = function(input, output) {
p.reset(input);
const rv = p.parseKeyAction();
assert.strictEqual(rv, output);
};
checkResult('CANCEL', hterm.Keyboard.KeyActions.CANCEL);
checkResult('PASS', hterm.Keyboard.KeyActions.PASS);
checkResult('DEFAULT', hterm.Keyboard.KeyActions.DEFAULT);
checkResult('"123"', '123');
});
});