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<!-- Polymer included for the html import polyfill. -->
<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"/>
<title>gr-patch-set-behavior</title>

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

<link rel="import" href="gr-patch-set-behavior.html">

<script>
  suite('gr-patch-set-behavior tests', () => {
    test('getRevisionByPatchNum', () => {
      const get = Gerrit.PatchSetBehavior.getRevisionByPatchNum;
      const revisions = [
        {_number: 0},
        {_number: 1},
        {_number: 2},
      ];
      assert.deepEqual(get(revisions, '1'), revisions[1]);
      assert.deepEqual(get(revisions, 2), revisions[2]);
      assert.equal(get(revisions, '3'), undefined);
    });

    test('fetchChangeUpdates on latest', done => {
      const knownChange = {
        revisions: {
          sha1: {description: 'patch 1', _number: 1},
          sha2: {description: 'patch 2', _number: 2},
        },
        status: 'NEW',
        messages: [],
      };
      const mockRestApi = {
        getChangeDetail() {
          return Promise.resolve(knownChange);
        },
      };
      Gerrit.PatchSetBehavior.fetchChangeUpdates(knownChange, mockRestApi)
          .then(result => {
            assert.isTrue(result.isLatest);
            assert.isNotOk(result.newStatus);
            assert.isFalse(result.newMessages);
            done();
          });
    });

    test('fetchChangeUpdates not on latest', done => {
      const knownChange = {
        revisions: {
          sha1: {description: 'patch 1', _number: 1},
          sha2: {description: 'patch 2', _number: 2},
        },
        status: 'NEW',
        messages: [],
      };
      const actualChange = {
        revisions: {
          sha1: {description: 'patch 1', _number: 1},
          sha2: {description: 'patch 2', _number: 2},
          sha3: {description: 'patch 3', _number: 3},
        },
        status: 'NEW',
        messages: [],
      };
      const mockRestApi = {
        getChangeDetail() {
          return Promise.resolve(actualChange);
        },
      };
      Gerrit.PatchSetBehavior.fetchChangeUpdates(knownChange, mockRestApi)
          .then(result => {
            assert.isFalse(result.isLatest);
            assert.isNotOk(result.newStatus);
            assert.isFalse(result.newMessages);
            done();
          });
    });

    test('fetchChangeUpdates new status', done => {
      const knownChange = {
        revisions: {
          sha1: {description: 'patch 1', _number: 1},
          sha2: {description: 'patch 2', _number: 2},
        },
        status: 'NEW',
        messages: [],
      };
      const actualChange = {
        revisions: {
          sha1: {description: 'patch 1', _number: 1},
          sha2: {description: 'patch 2', _number: 2},
        },
        status: 'MERGED',
        messages: [],
      };
      const mockRestApi = {
        getChangeDetail() {
          return Promise.resolve(actualChange);
        },
      };
      Gerrit.PatchSetBehavior.fetchChangeUpdates(knownChange, mockRestApi)
          .then(result => {
            assert.isTrue(result.isLatest);
            assert.equal(result.newStatus, 'MERGED');
            assert.isFalse(result.newMessages);
            done();
          });
    });

    test('fetchChangeUpdates new messages', done => {
      const knownChange = {
        revisions: {
          sha1: {description: 'patch 1', _number: 1},
          sha2: {description: 'patch 2', _number: 2},
        },
        status: 'NEW',
        messages: [],
      };
      const actualChange = {
        revisions: {
          sha1: {description: 'patch 1', _number: 1},
          sha2: {description: 'patch 2', _number: 2},
        },
        status: 'NEW',
        messages: [{message: 'blah blah'}],
      };
      const mockRestApi = {
        getChangeDetail() {
          return Promise.resolve(actualChange);
        },
      };
      Gerrit.PatchSetBehavior.fetchChangeUpdates(knownChange, mockRestApi)
          .then(result => {
            assert.isTrue(result.isLatest);
            assert.isNotOk(result.newStatus);
            assert.isTrue(result.newMessages);
            done();
          });
    });

    test('_computeWipForPatchSets', () => {
      // Compute patch sets for a given timeline on a change. The initial WIP
      // property of the change can be true or false. The map of tags by
      // revision is keyed by patch set number. Each value is a list of change
      // message tags in the order that they occurred in the timeline. These
      // indicate actions that modify the WIP property of the change and/or
      // create new patch sets.
      //
      // Returns the actual results with an assertWip method that can be used
      // to compare against an expected value for a particular patch set.
      const compute = (initialWip, tagsByRevision) => {
        const change = {
          messages: [],
          work_in_progress: initialWip,
        };
        const revs = Object.keys(tagsByRevision).sort((a, b) => a - b);
        for (const rev of revs) {
          for (const tag of tagsByRevision[rev]) {
            change.messages.push({
              tag,
              _revision_number: rev,
            });
          }
        }
        let patchNums = revs.map(rev => { return {num: rev}; });
        patchNums = Gerrit.PatchSetBehavior._computeWipForPatchSets(
            change, patchNums);
        const actualWipsByRevision = {};
        for (const patchNum of patchNums) {
          actualWipsByRevision[patchNum.num] = patchNum.wip;
        }
        const verifier = {
          assertWip(revision, expectedWip) {
            const patchNum = patchNums.find(patchNum => patchNum.num == revision);
            if (!patchNum) {
              assert.fail('revision ' + revision + ' not found');
            }
            assert.equal(patchNum.wip, expectedWip,
                'wip state for ' + revision + ' is ' +
              patchNum.wip + '; expected ' + expectedWip);
            return verifier;
          },
        };
        return verifier;
      };

      compute(false, {1: ['upload']}).assertWip(1, false);
      compute(true, {1: ['upload']}).assertWip(1, true);

      const setWip = 'autogenerated:gerrit:setWorkInProgress';
      const uploadInWip = 'autogenerated:gerrit:newWipPatchSet';
      const clearWip = 'autogenerated:gerrit:setReadyForReview';

      compute(false, {
        1: ['upload', setWip],
        2: ['upload'],
        3: ['upload', clearWip],
        4: ['upload', setWip],
      }).assertWip(1, false) // Change was created with PS1 ready for review
          .assertWip(2, true) // PS2 was uploaded during WIP
          .assertWip(3, false) // PS3 was marked ready for review after upload
          .assertWip(4, false); // PS4 was uploaded ready for review

      compute(false, {
        1: [uploadInWip, null, 'addReviewer'],
        2: ['upload'],
        3: ['upload', clearWip, setWip],
        4: ['upload'],
        5: ['upload', clearWip],
        6: [uploadInWip],
      }).assertWip(1, true) // Change was created in WIP
          .assertWip(2, true) // PS2 was uploaded during WIP
          .assertWip(3, false) // PS3 was marked ready for review
          .assertWip(4, true) // PS4 was uploaded during WIP
          .assertWip(5, false) // PS5 was marked ready for review
          .assertWip(6, true); // PS6 was uploaded with WIP option
    });

    test('patchNumEquals', () => {
      const equals = Gerrit.PatchSetBehavior.patchNumEquals;
      assert.isFalse(equals('edit', 'PARENT'));
      assert.isFalse(equals('edit', NaN));
      assert.isFalse(equals(1, '2'));

      assert.isTrue(equals(1, '1'));
      assert.isTrue(equals(1, 1));
      assert.isTrue(equals('edit', 'edit'));
      assert.isTrue(equals('PARENT', 'PARENT'));
    });

    test('isMergeParent', () => {
      const isParent = Gerrit.PatchSetBehavior.isMergeParent;
      assert.isFalse(isParent(1));
      assert.isFalse(isParent(4321));
      assert.isFalse(isParent('52'));
      assert.isFalse(isParent('edit'));
      assert.isFalse(isParent('PARENT'));
      assert.isFalse(isParent(0));

      assert.isTrue(isParent(-23));
      assert.isTrue(isParent(-1));
      assert.isTrue(isParent('-42'));
    });

    test('findEditParentRevision', () => {
      const findParent = Gerrit.PatchSetBehavior.findEditParentRevision;
      let revisions = [
        {_number: 0},
        {_number: 1},
        {_number: 2},
      ];
      assert.strictEqual(findParent(revisions), null);

      revisions = [...revisions, {_number: 'edit', basePatchNum: 3}];
      assert.strictEqual(findParent(revisions), null);

      revisions = [...revisions, {_number: 3}];
      assert.deepEqual(findParent(revisions), {_number: 3});
    });

    test('findEditParentPatchNum', () => {
      const findNum = Gerrit.PatchSetBehavior.findEditParentPatchNum;
      let revisions = [
        {_number: 0},
        {_number: 1},
        {_number: 2},
      ];
      assert.equal(findNum(revisions), -1);

      revisions =
          [...revisions, {_number: 'edit', basePatchNum: 3}, {_number: 3}];
      assert.deepEqual(findNum(revisions), 3);
    });

    test('sortRevisions', () => {
      const sort = Gerrit.PatchSetBehavior.sortRevisions;
      const revisions = [
        {_number: 0},
        {_number: 2},
        {_number: 1},
      ];
      const sorted = [
        {_number: 2},
        {_number: 1},
        {_number: 0},
      ];

      assert.deepEqual(sort(revisions), sorted);

      // Edit patchset should follow directly after its basePatchNum.
      revisions.push({_number: 'edit', basePatchNum: 2});
      sorted.unshift({_number: 'edit', basePatchNum: 2});
      assert.deepEqual(sort(revisions), sorted);

      revisions[0].basePatchNum = 0;
      const edit = sorted.shift();
      edit.basePatchNum = 0;
      // Edit patchset should be at index 2.
      sorted.splice(2, 0, edit);
      assert.deepEqual(sort(revisions), sorted);
    });

    test('getParentIndex', () => {
      assert.equal(Gerrit.PatchSetBehavior.getParentIndex('-13'), 13);
      assert.equal(Gerrit.PatchSetBehavior.getParentIndex(-4), 4);
    });
  });
</script>