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

<script src="/bower_components/webcomponentsjs/custom-elements-es5-adapter.js"></script>

<script src="/bower_components/webcomponentsjs/webcomponents-lite.js"></script>
<script src="/bower_components/web-component-tester/browser.js"></script>
<link rel="import" href="../../../test/common-test-setup.html"/>
<script src="../../../scripts/util.js"></script>
<script src="../gr-diff/gr-diff-line.js"></script>
<script src="../gr-diff/gr-diff-group.js"></script>
<script src="../gr-diff-highlight/gr-annotation.js"></script>
<script src="gr-diff-builder.js"></script>
<script src="gr-diff-builder-unified.js"></script>

<script>void(0);</script>

<script>
  suite('GrDiffBuilderUnified tests', () => {
    let prefs;
    let outputEl;
    let diffBuilder;

    setup(()=> {
      prefs = {
        line_length: 10,
        show_tabs: true,
        tab_size: 4,
      };
      outputEl = document.createElement('div');
      diffBuilder = new GrDiffBuilderUnified({}, prefs, outputEl, []);
    });

    suite('buildSectionElement for BOTH group', () => {
      let lines;
      let group;

      setup(() => {
        lines = [
          new GrDiffLine(GrDiffLine.Type.BOTH, 1, 2),
          new GrDiffLine(GrDiffLine.Type.BOTH, 2, 3),
          new GrDiffLine(GrDiffLine.Type.BOTH, 3, 4),
        ];
        lines[0].text = 'def hello_world():';
        lines[1].text = '  print "Hello World";';
        lines[2].text = '  return True';

        group = new GrDiffGroup(GrDiffGroup.Type.BOTH, lines);
      });

      test('creates the section', () => {
        const sectionEl = diffBuilder.buildSectionElement(group);
        assert.isTrue(sectionEl.classList.contains('section'));
        assert.isTrue(sectionEl.classList.contains('both'));
      });

      test('creates each unchanged row once', () => {
        const sectionEl = diffBuilder.buildSectionElement(group);
        const rowEls = sectionEl.querySelectorAll('.diff-row');

        assert.equal(rowEls.length, 3);

        assert.equal(
            rowEls[0].querySelector('.lineNum.left').textContent,
            lines[0].beforeNumber);
        assert.equal(
            rowEls[0].querySelector('.lineNum.right').textContent,
            lines[0].afterNumber);
        assert.equal(
            rowEls[0].querySelector('.content').textContent, lines[0].text);

        assert.equal(
            rowEls[1].querySelector('.lineNum.left').textContent,
            lines[1].beforeNumber);
        assert.equal(
            rowEls[1].querySelector('.lineNum.right').textContent,
            lines[1].afterNumber);
        assert.equal(
            rowEls[1].querySelector('.content').textContent, lines[1].text);

        assert.equal(
            rowEls[2].querySelector('.lineNum.left').textContent,
            lines[2].beforeNumber);
        assert.equal(
            rowEls[2].querySelector('.lineNum.right').textContent,
            lines[2].afterNumber);
        assert.equal(
            rowEls[2].querySelector('.content').textContent, lines[2].text);
      });
    });

    suite('buildSectionElement for DELTA group', () => {
      let lines;
      let group;

      setup(() => {
        lines = [
          new GrDiffLine(GrDiffLine.Type.REMOVE, 1),
          new GrDiffLine(GrDiffLine.Type.REMOVE, 2),
          new GrDiffLine(GrDiffLine.Type.ADD, 2),
          new GrDiffLine(GrDiffLine.Type.ADD, 3),
        ];
        lines[0].text = 'def hello_world():';
        lines[1].text = '  print "Hello World"';
        lines[2].text = 'def hello_universe()';
        lines[3].text = '  print "Hello Universe"';

        group = new GrDiffGroup(GrDiffGroup.Type.DELTA, lines);
      });

      test('creates the section', () => {
        const sectionEl = diffBuilder.buildSectionElement(group);
        assert.isTrue(sectionEl.classList.contains('section'));
        assert.isTrue(sectionEl.classList.contains('delta'));
      });

      test('creates the section with class if ignoredWhitespaceOnly', () => {
        group.ignoredWhitespaceOnly = true;
        const sectionEl = diffBuilder.buildSectionElement(group);
        assert.isTrue(sectionEl.classList.contains('ignoredWhitespaceOnly'));
      });

      test('creates the section with class if dueToRebase', () => {
        group.dueToRebase = true;
        const sectionEl = diffBuilder.buildSectionElement(group);
        assert.isTrue(sectionEl.classList.contains('dueToRebase'));
      });

      test('creates first the removed and then the added rows', () => {
        const sectionEl = diffBuilder.buildSectionElement(group);
        const rowEls = sectionEl.querySelectorAll('.diff-row');

        assert.equal(rowEls.length, 4);

        assert.equal(
            rowEls[0].querySelector('.lineNum.left').textContent,
            lines[0].beforeNumber);
        assert.isNotOk(rowEls[0].querySelector('.lineNum.right'));
        assert.equal(
            rowEls[0].querySelector('.content').textContent, lines[0].text);

        assert.equal(
            rowEls[1].querySelector('.lineNum.left').textContent,
            lines[1].beforeNumber);
        assert.isNotOk(rowEls[1].querySelector('.lineNum.right'));
        assert.equal(
            rowEls[1].querySelector('.content').textContent, lines[1].text);

        assert.isNotOk(rowEls[2].querySelector('.lineNum.left'));
        assert.equal(
            rowEls[2].querySelector('.lineNum.right').textContent,
            lines[2].afterNumber);
        assert.equal(
            rowEls[2].querySelector('.content').textContent, lines[2].text);

        assert.isNotOk(rowEls[3].querySelector('.lineNum.left'));
        assert.equal(
            rowEls[3].querySelector('.lineNum.right').textContent,
            lines[3].afterNumber);
        assert.equal(
            rowEls[3].querySelector('.content').textContent, lines[3].text);
      });

      test('creates only the added rows if only ignored whitespace', () => {
        group.ignoredWhitespaceOnly = true;
        const sectionEl = diffBuilder.buildSectionElement(group);
        const rowEls = sectionEl.querySelectorAll('.diff-row');

        assert.equal(rowEls.length, 2);

        assert.isNotOk(rowEls[0].querySelector('.lineNum.left'));
        assert.equal(
            rowEls[0].querySelector('.lineNum.right').textContent,
            lines[2].afterNumber);
        assert.equal(
            rowEls[0].querySelector('.content').textContent, lines[2].text);

        assert.isNotOk(rowEls[1].querySelector('.lineNum.left'));
        assert.equal(
            rowEls[1].querySelector('.lineNum.right').textContent,
            lines[3].afterNumber);
        assert.equal(
            rowEls[1].querySelector('.content').textContent, lines[3].text);
      });
    });
  });
</script>