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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-processor test</title>

<script src="../../../bower_components/webcomponentsjs/webcomponents.min.js"></script>
<script src="../../../bower_components/web-component-tester/browser.js"></script>

<link rel="import" href="../../../bower_components/iron-test-helpers/iron-test-helpers.html">
<link rel="import" href="gr-diff-processor.html">

<test-fixture id="basic">
  <template>
    <gr-diff-processor></gr-diff-processor>
  </template>
</test-fixture>

<script>
  suite('gr-diff-processor tests', function() {
    var element;

    suite('not logged in', function() {

      setup(function() {
        element = fixture('basic');

        element.context = 4;
      });

      test('process loaded content', function(done) {
        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.',
            ]
          },
        ];

        element.process(content).then(function() {
          var groups = element.groups;

          assert.equal(groups.length, 4);

          var group = groups[0];
          assert.equal(group.type, GrDiffGroup.Type.BOTH);
          assert.equal(group.lines.length, 1);
          assert.equal(group.lines[0].text, '');
          assert.equal(group.lines[0].beforeNumber, GrDiffLine.FILE);
          assert.equal(group.lines[0].afterNumber, GrDiffLine.FILE);

          group = groups[1];
          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[2];
          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[3];
          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.',
          ]);

          done();
        });
      });

      test('insert context groups', function(done) {
        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 context = 10;
        element.context = context;

        element.process(content).then(function() {
          var groups = element.groups;

          assert.equal(groups[0].type, GrDiffGroup.Type.BOTH);
          assert.equal(groups[0].lines.length, 1);
          assert.equal(groups[0].lines[0].text, '');
          assert.equal(groups[0].lines[0].beforeNumber, GrDiffLine.FILE);
          assert.equal(groups[0].lines[0].afterNumber, GrDiffLine.FILE);

          assert.equal(groups[1].type, GrDiffGroup.Type.CONTEXT_CONTROL);
          assert.instanceOf(groups[1].lines[0].contextGroup, GrDiffGroup);
          assert.equal(groups[1].lines[0].contextGroup.lines.length, 90);
          groups[1].lines[0].contextGroup.lines.forEach(function(l) {
            assert.equal(l.text, content[0].ab[0]);
          });

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

          assert.equal(groups[3].type, GrDiffGroup.Type.DELTA);
          assert.equal(groups[3].lines.length, 1);
          assert.equal(groups[3].removes.length, 1);
          assert.equal(groups[3].removes[0].text,
              'all work and no play make andybons a dull boy');

          assert.equal(groups[4].type, GrDiffGroup.Type.BOTH);
          assert.equal(groups[4].lines.length, 5);
          groups[4].lines.forEach(function(l) {
            assert.equal(l.text, content[2].ab[0]);
          });

          assert.equal(groups[5].type, GrDiffGroup.Type.DELTA);
          assert.equal(groups[5].lines.length, 1);
          assert.equal(groups[5].adds.length, 1);
          assert.equal(groups[5].adds[0].text, 'elgoog elgoog elgoog');

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

          assert.equal(groups[7].type, GrDiffGroup.Type.CONTEXT_CONTROL);
          assert.instanceOf(groups[7].lines[0].contextGroup, GrDiffGroup);
          assert.equal(groups[7].lines[0].contextGroup.lines.length, 90);
          groups[7].lines[0].contextGroup.lines.forEach(function(l) {
            assert.equal(l.text, content[4].ab[0]);
          });

          done();
        });
      });

      test('insert context groups', function(done) {
        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');
        }

        var context = 10;
        element.context = context;

        element.process(content).then(function() {
          var groups = element.groups;

          assert.equal(groups[0].type, GrDiffGroup.Type.BOTH);
          assert.equal(groups[0].lines.length, 1);
          assert.equal(groups[0].lines[0].text, '');
          assert.equal(groups[0].lines[0].beforeNumber, GrDiffLine.FILE);
          assert.equal(groups[0].lines[0].afterNumber, GrDiffLine.FILE);

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

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

          assert.equal(groups[3].type, GrDiffGroup.Type.CONTEXT_CONTROL);
          assert.instanceOf(groups[3].lines[0].contextGroup, GrDiffGroup);
          assert.equal(groups[3].lines[0].contextGroup.lines.length, 30);
          groups[3].lines[0].contextGroup.lines.forEach(function(l) {
            assert.equal(l.text, content[1].ab[0]);
          });

          assert.equal(groups[4].type, GrDiffGroup.Type.BOTH);
          assert.equal(groups[4].lines.length, context);
          groups[4].lines.forEach(function(l) {
            assert.equal(l.text, content[1].ab[0]);
          });

          assert.equal(groups[5].type, GrDiffGroup.Type.DELTA);
          assert.equal(groups[5].lines.length, 1);
          assert.equal(groups[5].adds.length, 1);
          assert.equal(groups[5].adds[0].text, 'elgoog elgoog elgoog');

          done();
        });
      });

      test('break up common diff chunks', function() {
        element.keyLocations = {
          left: {1: true},
          right: {10: true},
        };
        var lineNums = {left: 0, right: 0};

        var content = [
          {
            ab: [
              'Copyright (C) 2015 The Android Open Source Project',
              '',
              'Licensed under the Apache License, Version 2.0 (the "License");',
              'you may not use this file except in compliance with the ' +
                  'License.',
              'You may obtain a copy of the License at',
              '',
              'http://www.apache.org/licenses/LICENSE-2.0',
              '',
              'Unless required by applicable law or agreed to in writing, ',
              'software distributed under the License is distributed on an ',
              '"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, ',
              'either express or implied. See the License for the specific ',
              'language governing permissions and limitations under the ' +
                  'License.',
            ]
          }
        ];
        var result = element._splitCommonGroupsWithComments(content, lineNums);
        assert.deepEqual(result, [
          {
            ab: ['Copyright (C) 2015 The Android Open Source Project'],
          },
          {
            ab: [
              '',
              'Licensed under the Apache License, Version 2.0 (the "License");',
              'you may not use this file except in compliance with the ' +
                  'License.',
              'You may obtain a copy of the License at',
              '',
              'http://www.apache.org/licenses/LICENSE-2.0',
              '',
              'Unless required by applicable law or agreed to in writing, ',
            ]
          },
          {
            ab: [
                'software distributed under the License is distributed on an '],
          },
          {
            ab: [
              '"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, ',
              'either express or implied. See the License for the specific ',
              'language governing permissions and limitations under the ' +
                  'License.',
            ]
          }
        ]);
      });

      test('intraline normalization', function() {
        // The content and highlights are in the format returned by the Gerrit
        // REST API.
        var content = [
          '      <section class="summary">',
          '        <gr-linked-text content="' +
              '[[_computeCurrentRevisionMessage(change)]]"></gr-linked-text>',
          '      </section>',
        ];
        var highlights = [
          [31, 34], [42, 26]
        ];

        var results = element._normalizeIntralineHighlights(content,
            highlights);
        assert.deepEqual(results, [
          {
            contentIndex: 0,
            startIndex: 31,
          },
          {
            contentIndex: 1,
            startIndex: 0,
            endIndex: 33,
          },
          {
            contentIndex: 1,
            startIndex: 75,
          },
          {
            contentIndex: 2,
            startIndex: 0,
            endIndex: 6,
          }
        ]);

        content = [
          '        this._path = value.path;',
          '',
          '        // When navigating away from the page, there is a ' +
            'possibility that the',
          '        // patch number is no longer a part of the URL ' +
            '(say when navigating to',
          '        // the top-level change info view) and therefore ' +
            'undefined in `params`.',
          '        if (!this._patchRange.patchNum) {',
        ];
        highlights = [
          [14, 17],
          [11, 70],
          [12, 67],
          [12, 67],
          [14, 29],
        ];
        results = element._normalizeIntralineHighlights(content, highlights);
        assert.deepEqual(results, [
          {
            contentIndex: 0,
            startIndex: 14,
            endIndex: 31,
          },
          {
            contentIndex: 2,
            startIndex: 8,
            endIndex: 78,
          },
          {
            contentIndex: 3,
            startIndex: 11,
            endIndex: 78,
          },
          {
            contentIndex: 4,
            startIndex: 11,
            endIndex: 78,
          },
          {
            contentIndex: 5,
            startIndex: 12,
            endIndex: 41,
          }
        ]);
      });
    });
  });
</script>