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<meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
<title>gr-diff-builder</title>

<script src="../../../bower_components/web-component-tester/browser.js"></script>
<script src="gr-diff-line.js"></script>
<script src="gr-diff-group.js"></script>
<script src="gr-diff-builder.js"></script>

<script>
  suite('gr-diff-builder tests', function() {

    test('process loaded content', function() {
      var content = [
        {
          ab: [
            '<!DOCTYPE html>',
            '<meta charset="utf-8">',
          ]
        },
        {
          a: [
            '  Welcome ',
            '  to the wooorld of tomorrow!',
          ],
          b: [
            '  Hello, world!',
          ],
        },
        {
          ab: [
            'Leela: This is the only place the ship can’t hear us, so ',
            'everyone pretend to shower.',
            'Fry: Same as every day. Got it.',
          ]
        },
      ];
      var groups = [];
      GrDiffBuilder.prototype._processContent(content, groups, -1);

      assert.equal(groups.length, 3);

      var group = groups[0];
      assert.equal(group.type, GrDiffGroup.Type.BOTH);
      assert.equal(group.lines.length, 2);
      assert.equal(group.lines.length, 2);

      function beforeNumberFn(l) { return l.beforeNumber; }
      function afterNumberFn(l) { return l.afterNumber; }
      function textFn(l) { return l.text; }

      assert.deepEqual(group.lines.map(beforeNumberFn), [1, 2]);
      assert.deepEqual(group.lines.map(afterNumberFn), [1, 2]);
      assert.deepEqual(group.lines.map(textFn), [
        '<!DOCTYPE html>',
        '<meta charset="utf-8">',
      ]);

      group = groups[1];
      assert.equal(group.type, GrDiffGroup.Type.DELTA);
      assert.equal(group.lines.length, 3);
      assert.equal(group.adds.length, 1);
      assert.equal(group.removes.length, 2);
      assert.deepEqual(group.removes.map(beforeNumberFn), [3, 4]);
      assert.deepEqual(group.adds.map(afterNumberFn), [3]);
      assert.deepEqual(group.removes.map(textFn), [
        '  Welcome ',
        '  to the wooorld of tomorrow!',
      ]);
      assert.deepEqual(group.adds.map(textFn), [
        '  Hello, world!',
      ]);

      group = groups[2];
      assert.equal(group.type, GrDiffGroup.Type.BOTH);
      assert.equal(group.lines.length, 3);
      assert.deepEqual(group.lines.map(beforeNumberFn), [5, 6, 7]);
      assert.deepEqual(group.lines.map(afterNumberFn), [4, 5, 6]);
      assert.deepEqual(group.lines.map(textFn), [
        'Leela: This is the only place the ship can’t hear us, so ',
        'everyone pretend to shower.',
        'Fry: Same as every day. Got it.',
      ]);
    });

    test('insert context groups', function() {
      var content = [
        {ab: []},
        {a: ['all work and no play make andybons a dull boy']},
        {ab: []},
        {b: ['elgoog elgoog elgoog']},
        {ab: []},
      ];
      for (var i = 0; i < 100; i++) {
        content[0].ab.push('all work and no play make jack a dull boy');
        content[4].ab.push('all work and no play make jill a dull girl');
      }
      for (var i = 0; i < 5; i++) {
        content[2].ab.push('no tv and no beer make homer go crazy');
      }
      var groups = [];
      var context = 10;

      GrDiffBuilder.prototype._processContent(content, groups, context);

      assert.equal(groups[0].type, GrDiffGroup.Type.CONTEXT_CONTROL);
      assert.equal(groups[0].lines[0].contextLines.length, 90);
      groups[0].lines[0].contextLines.forEach(function(l) {
        assert.equal(l.text, content[0].ab[0]);
      });

      assert.equal(groups[1].type, GrDiffGroup.Type.BOTH);
      assert.equal(groups[1].lines.length, context);
      groups[1].lines.forEach(function(l) {
        assert.equal(l.text, content[0].ab[0]);
      });

      assert.equal(groups[2].type, GrDiffGroup.Type.DELTA);
      assert.equal(groups[2].lines.length, 1);
      assert.equal(groups[2].removes.length, 1);
      assert.equal(groups[2].removes[0].text,
          'all work and no play make andybons a dull boy');

      assert.equal(groups[3].type, GrDiffGroup.Type.BOTH);
      assert.equal(groups[3].lines.length, 5);
      groups[3].lines.forEach(function(l) {
        assert.equal(l.text, content[2].ab[0]);
      });

      assert.equal(groups[4].type, GrDiffGroup.Type.DELTA);
      assert.equal(groups[4].lines.length, 1);
      assert.equal(groups[4].adds.length, 1);
      assert.equal(groups[4].adds[0].text, 'elgoog elgoog elgoog');

      assert.equal(groups[5].type, GrDiffGroup.Type.BOTH);
      assert.equal(groups[5].lines.length, context);
      groups[5].lines.forEach(function(l) {
        assert.equal(l.text, content[4].ab[0]);
      });

      assert.equal(groups[6].type, GrDiffGroup.Type.CONTEXT_CONTROL);
      assert.equal(groups[6].lines[0].contextLines.length, 90);
      groups[6].lines[0].contextLines.forEach(function(l) {
        assert.equal(l.text, content[4].ab[0]);
      });

      content = [
        {a: ['all work and no play make andybons a dull boy']},
        {ab: []},
        {b: ['elgoog elgoog elgoog']},
      ];
      for (var i = 0; i < 50; i++) {
        content[1].ab.push('no tv and no beer make homer go crazy');
      }
      groups = [];

      GrDiffBuilder.prototype._processContent(content, groups, 10);

      assert.equal(groups[0].type, GrDiffGroup.Type.DELTA);
      assert.equal(groups[0].lines.length, 1);
      assert.equal(groups[0].removes.length, 1);
      assert.equal(groups[0].removes[0].text,
          'all work and no play make andybons a dull boy');

      assert.equal(groups[1].type, GrDiffGroup.Type.BOTH);
      assert.equal(groups[1].lines.length, context);
      groups[1].lines.forEach(function(l) {
        assert.equal(l.text, content[1].ab[0]);
      });

      assert.equal(groups[2].type, GrDiffGroup.Type.CONTEXT_CONTROL);
      assert.equal(groups[2].lines[0].contextLines.length, 30);
      groups[2].lines[0].contextLines.forEach(function(l) {
        assert.equal(l.text, content[1].ab[0]);
      });

      assert.equal(groups[3].type, GrDiffGroup.Type.BOTH);
      assert.equal(groups[3].lines.length, context);
      groups[3].lines.forEach(function(l) {
        assert.equal(l.text, content[1].ab[0]);
      });

      assert.equal(groups[4].type, GrDiffGroup.Type.DELTA);
      assert.equal(groups[4].lines.length, 1);
      assert.equal(groups[4].adds.length, 1);
      assert.equal(groups[4].adds[0].text, 'elgoog elgoog elgoog');
    });
  });
</script>