mirror_xterm.js/test/test.js

var assert = require('chai').assert;
var Terminal = require('../src/xterm');

describe('xterm.js', function() {
  var xterm;

  beforeEach(function () {
    xterm = new Terminal();
  });

  describe('evaluateKeyEscapeSequence', function() {
    it('should return the correct escape sequence for unmodified keys', function() {
      // Backspace
      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 8 }).key, '\x7f'); // ^?
      // Tab
      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 9 }).key, '\t');
      // Return/enter
      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 13 }).key, '\r'); // CR
      // Escape
      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 27 }).key, '\x1b');
      // Page up, page down
      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 33 }).key, '\x1b[5~'); // CSI 5 ~
      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 34 }).key, '\x1b[6~'); // CSI 6 ~
      // End, Home
      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 35 }).key, '\x1bOF'); // SS3 F
      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 36 }).key, '\x1bOH'); // SS3 H
      // Left, up, right, down arrows
      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 37 }).key, '\x1b[D'); // CSI D
      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 38 }).key, '\x1b[A'); // CSI A
      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 39 }).key, '\x1b[C'); // CSI C
      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 40 }).key, '\x1b[B'); // CSI B
      // Insert
      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 45 }).key, '\x1b[2~'); // CSI 2 ~
      // Delete
      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 46 }).key, '\x1b[3~'); // CSI 3 ~
      // F1-F12
      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 112 }).key, '\x1bOP'); // SS3 P
      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 113 }).key, '\x1bOQ'); // SS3 Q
      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 114 }).key, '\x1bOR'); // SS3 R
      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 115 }).key, '\x1bOS'); // SS3 S
      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 116 }).key, '\x1b[15~'); // CSI 1 5 ~
      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 117 }).key, '\x1b[17~'); // CSI 1 7 ~
      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 118 }).key, '\x1b[18~'); // CSI 1 8 ~
      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 119 }).key, '\x1b[19~'); // CSI 1 9 ~
      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 120 }).key, '\x1b[20~'); // CSI 2 0 ~
      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 121 }).key, '\x1b[21~'); // CSI 2 1 ~
      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 122 }).key, '\x1b[23~'); // CSI 2 3 ~
      assert.equal(xterm.evaluateKeyEscapeSequence({ keyCode: 123 }).key, '\x1b[24~'); // CSI 2 4 ~
    });
    it('should return \\x1b[5D for ctrl+left', function() {
      assert.equal(xterm.evaluateKeyEscapeSequence({ ctrlKey: true, keyCode: 37 }).key, '\x1b[5D'); // CSI 5 D
    });
    it('should return \\x1b[5C for ctrl+right', function() {
      assert.equal(xterm.evaluateKeyEscapeSequence({ ctrlKey: true, keyCode: 39 }).key, '\x1b[5C'); // CSI 5 C
    });
  });

  describe('evaluateCopiedTextProcessing', function () {
    it('should strip trailing whitespaces and replace nbsps with spaces', function () {
			var nonBreakingSpace = String.fromCharCode(160),
          copiedText = 'echo' + nonBreakingSpace + 'hello' + nonBreakingSpace,
          processedText = Terminal.prepareCopiedTextForClipboard(copiedText);

      // No trailing spaces
      assert.equal(processedText.match(/\s+$/), null);

      // No non-breaking space
      assert.equal(processedText.indexOf(nonBreakingSpace), -1);
    });
  });

  describe('Third level shift', function() {
    var ev = {
      preventDefault: function() {},
      stopPropagation: function() {}
    };

    beforeEach(function() {
      xterm.handler = function() {};
      xterm.showCursor = function() {};
      xterm.clearSelection = function() {};
    });

    describe('On Mac OS', function() {
      beforeEach(function() {
        xterm.isMac = true;
      });

      it('should not interfere with the alt key on keyDown', function() {
        assert.equal(
          xterm.keyDown(Object.assign({}, ev, { altKey: true, keyCode: 81 })),
          true
        );
        assert.equal(
          xterm.keyDown(Object.assign({}, ev, { altKey: true, keyCode: 192 })),
          true
        );
      });

      it('should interefere with the alt + arrow keys', function() {
        assert.equal(
          xterm.keyDown(Object.assign({}, ev, { altKey: true, keyCode: 37 })),
          false
        );
        assert.equal(
          xterm.keyDown(Object.assign({}, ev, { altKey: true, keyCode: 39 })),
          false
        );
      });

      it('should emit key with alt + key on keyPress', function(done) {
        var keys = ['@', '@', '\\', '\\', '|', '|'];

        xterm.on('keypress', function(key) {
          if (key) {
            var index = keys.indexOf(key);
            assert(index !== -1, "Emitted wrong key: " + key);
            keys.splice(index, 1);
          }
          if (keys.length === 0) done();
        });

        xterm.keyPress(Object.assign({}, ev, { altKey: true, keyCode: 64 })); // @
        // Firefox
        xterm.keyPress(Object.assign({}, ev, { altKey: true, charCode: 64, keyCode: 0 }));
        xterm.keyPress(Object.assign({}, ev, { altKey: true, keyCode: 92 })); // \
        xterm.keyPress(Object.assign({}, ev, { altKey: true, charCode: 92, keyCode: 0 }));
        xterm.keyPress(Object.assign({}, ev, { altKey: true, keyCode: 124 })); // |
        xterm.keyPress(Object.assign({}, ev, { altKey: true, charCode: 124, keyCode: 0 }));
      });
    });

    describe('On MS Windows', function() {
      beforeEach(function() {
        xterm.isMSWindows = true;
      });

      it('should not interfere with the alt + ctrl key on keyDown', function() {
        assert.equal(
          xterm.keyDown(Object.assign({}, ev, { altKey: true, ctrlKey: true, keyCode: 81 })),
          true
        );
        assert.equal(
          xterm.keyDown(Object.assign({}, ev, { altKey: true, ctrlKey: true, keyCode: 192 })),
          true
        );
      });

      it('should interefere with the alt + ctrl + arrow keys', function() {
        assert.equal(
          xterm.keyDown(Object.assign({}, ev, { altKey: true, ctrlKey: true, keyCode: 37 })),
          false
        );
        assert.equal(
          xterm.keyDown(Object.assign({}, ev, { altKey: true, ctrlKey: true, keyCode: 39 })),
          false
        );
      });

      it('should emit key with alt + ctrl + key on keyPress', function(done) {
        var keys = ['@', '@', '\\', '\\', '|', '|'];

        xterm.on('keypress', function(key) {
          if (key) {
            var index = keys.indexOf(key);
            assert(index !== -1, "Emitted wrong key: " + key);
            keys.splice(index, 1);
          }
          if (keys.length === 0) done();
        });

        xterm.keyPress(
          Object.assign({}, ev, { altKey: true, ctrlKey: true, keyCode: 64 })
        ); // @
        xterm.keyPress(
          Object.assign({}, ev, { altKey: true, ctrlKey: true, charCode: 64, keyCode: 0 })
        );
        xterm.keyPress(
          Object.assign({}, ev, { altKey: true, ctrlKey: true, keyCode: 92 })
        ); // \
        xterm.keyPress(
          Object.assign({}, ev, { altKey: true, ctrlKey: true, charCode: 92, keyCode: 0 })
        );
        xterm.keyPress(
          Object.assign({}, ev, { altKey: true, ctrlKey: true, keyCode: 124 })
        ); // |
        xterm.keyPress(
          Object.assign({}, ev, { altKey: true, ctrlKey: true, charCode: 124, keyCode: 0 })
        );
      });
    });
  });
});