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

<script src="../../../bower_components/page/page.js"></script>
<script src="../../../bower_components/webcomponentsjs/webcomponents-lite.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-change-list-view.html">

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

<test-fixture id="basic">
  <template>
    <gr-change-list-view></gr-change-list-view>
  </template>
</test-fixture>

<script>
  const CHANGE_ID = 'IcA3dAB3edAB9f60B8dcdA6ef71A75980e4B7127';
  const COMMIT_HASH = '12345678';

  suite('gr-change-list-view tests', () => {
    let element;
    let sandbox;

    setup(() => {
      stub('gr-rest-api-interface', {
        getLoggedIn() { return Promise.resolve(false); },
        getChanges(num, query) {
          return Promise.resolve([]);
        },
      });
      element = fixture('basic');
      sandbox = sinon.sandbox.create();
    });

    teardown(done => {
      flush(() => {
        sandbox.restore();
        done();
      });
    });

    test('url is properly encoded', () => {
      assert.equal(element._computeNavLink(
          'status:open project:platform/frameworks/base', 0, -1, 25),
          '/q/status:open+project:platform%252Fframeworks%252Fbase'
      );
      assert.equal(element._computeNavLink(
          'status:open project:platform/frameworks/base', 0, 1, 25),
          '/q/status:open+project:platform%252Fframeworks%252Fbase,25'
      );
    });

    test('_computeNavLink', () => {
      const query = 'status:open';
      let offset = 0;
      let direction = 1;
      const changesPerPage = 5;
      assert.equal(
          element._computeNavLink(query, offset, direction, changesPerPage),
          '/q/status:open,5');
      direction = -1;
      assert.equal(
          element._computeNavLink(query, offset, direction, changesPerPage),
          '/q/status:open');
      offset = 5;
      direction = 1;
      assert.equal(
          element._computeNavLink(query, offset, direction, changesPerPage),
          '/q/status:open,10');
    });

    test('_computeNavLink with path', () => {
      window.CANONICAL_PATH = '/r';
      const query = 'status:open';
      let offset = 0;
      let direction = 1;
      const changesPerPage = 5;
      assert.equal(
          element._computeNavLink(query, offset, direction, changesPerPage),
          '/r/q/status:open,5');
      direction = -1;
      assert.equal(
          element._computeNavLink(query, offset, direction, changesPerPage),
          '/r/q/status:open');
      offset = 5;
      direction = 1;
      assert.equal(
          element._computeNavLink(query, offset, direction, changesPerPage),
          '/r/q/status:open,10');
    });

    test('_hidePrevArrow', () => {
      let offset = 0;
      assert.isTrue(element._hidePrevArrow(offset));
      offset = 5;
      assert.isFalse(element._hidePrevArrow(offset));
    });

    test('_hideNextArrow', () => {
      let loading = true;
      assert.isTrue(element._hideNextArrow(loading));
      loading = false;
      assert.isTrue(element._hideNextArrow(loading));
      element._changes = [];
      assert.isTrue(element._hideNextArrow(loading));
      element._changes =
          Array(...Array(5)).map(Object.prototype.valueOf, {});
      assert.isTrue(element._hideNextArrow(loading));
      element._changes =
          Array(...Array(25)).map(Object.prototype.valueOf,
          {_more_changes: true});
      assert.isFalse(element._hideNextArrow(loading));
      element._changes =
          Array(...Array(25)).map(Object.prototype.valueOf, {});
      assert.isTrue(element._hideNextArrow(loading));
    });

    test('_handleNextPage', () => {
      const showStub = sandbox.stub(page, 'show');
      element.$.nextArrow.hidden = true;
      element._handleNextPage();
      assert.isFalse(showStub.called);
      element.$.nextArrow.hidden = false;
      element._handleNextPage();
      assert.isTrue(showStub.called);
    });

    test('_handlePreviousPage', () => {
      const showStub = sandbox.stub(page, 'show');
      element.$.prevArrow.hidden = true;
      element._handlePreviousPage();
      assert.isFalse(showStub.called);
      element.$.prevArrow.hidden = false;
      element._handlePreviousPage();
      assert.isTrue(showStub.called);
    });

    suite('query based navigation', () => {
      test('Searching for a change ID redirects to change', done => {
        sandbox.stub(element, '_getChanges')
            .returns(Promise.resolve([{_number: 1}]));
        sandbox.stub(page, 'show', url => {
          assert.equal(url, '/c/1');
          done();
        });

        element.params = {view: 'gr-change-list-view', query: CHANGE_ID};
      });

      test('Searching for a change num redirects to change', done => {
        sandbox.stub(element, '_getChanges')
            .returns(Promise.resolve([{_number: 1}]));
        sandbox.stub(page, 'show', url => {
          assert.equal(url, '/c/1');
          done();
        });

        element.params = {view: 'gr-change-list-view', query: '1'};
      });

      test('Commit hash redirects to change', done => {
        sandbox.stub(element, '_getChanges')
            .returns(Promise.resolve([{_number: 1}]));
        sandbox.stub(page, 'show', url => {
          assert.equal(url, '/c/1');
          done();
        });

        element.params = {view: 'gr-change-list-view', query: COMMIT_HASH};
      });

      test('Searching for an invalid change ID searches', () => {
        sandbox.stub(element, '_getChanges')
            .returns(Promise.resolve([]));
        const stub = sandbox.stub(page, 'show');

        element.params = {view: 'gr-change-list-view', query: CHANGE_ID};
        flushAsynchronousOperations();

        assert.isFalse(stub.called);
      });

      test('Change ID with multiple search results searches', () => {
        sandbox.stub(element, '_getChanges')
            .returns(Promise.resolve([{}, {}]));
        const stub = sandbox.stub(page, 'show');

        element.params = {view: 'gr-change-list-view', query: CHANGE_ID};
        flushAsynchronousOperations();

        assert.isFalse(stub.called);
      });
    });
  });
</script>