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<meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
<title>gr-rest-api-interface</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-rest-api-interface.html">

<test-fixture id="basic">
  <template>
    <gr-rest-api-interface></gr-rest-api-interface>
  </template>
</test-fixture>

<script>
  suite('gr-rest-api-interface tests', function() {
    var element;

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

    test('JSON prefix is properly removed', function(done) {
      var testJSON = ')]}\'\n{"hello": "bonjour"}';

      var fetchStub = sinon.stub(window, 'fetch', function() {
        return Promise.resolve({ok: true, text: function() {
          return Promise.resolve(testJSON);
        }});
      });
      element.fetchJSON('/dummy/url').then(function(obj) {
        assert.deepEqual(obj, {hello: 'bonjour'});
        fetchStub.restore();
        done();
      });
    });

    test('cached results', function(done) {
      var n = 0;
      var fetchJSONStub = sinon.stub(element, 'fetchJSON', function() {
        return Promise.resolve(++n);
      });
      var promises = [];
      promises.push(element._fetchSharedCacheURL('/foo'));
      promises.push(element._fetchSharedCacheURL('/foo'));
      promises.push(element._fetchSharedCacheURL('/foo'));

      Promise.all(promises).then(function(results) {
        assert.deepEqual(results, [1, 1, 1]);
        element._fetchSharedCacheURL('/foo').then(function(foo) {
          assert.equal(foo, 1);
          fetchJSONStub.restore();
          done();
        });
      });
    });

    test('cached promise', function(done) {
      var promise = Promise.reject('foo');
      element._cache['/foo'] = promise;
      element._fetchSharedCacheURL('/foo').catch(function(p) {
        assert.equal(p, 'foo');
        done();
      });
    });

    test('params are properly encoded', function() {
      var url = element._urlWithParams('/path/', {
        sp: 'hola',
        gr: 'guten tag',
        noval: null,
      });
      assert.equal(url, '/path/?sp=hola&gr=guten%20tag&noval');

      url = element._urlWithParams('/path/', {
        sp: 'hola',
        en: ['hey', 'hi'],
      });
      assert.equal(url, '/path/?sp=hola&en=hey&en=hi');

      // Order must be maintained with array params.
      url = element._urlWithParams('/path/', {
        l: ['c', 'b', 'a'],
      });
      assert.equal(url, '/path/?l=c&l=b&l=a');
    });

    test('request callbacks can be canceled', function(done) {
      var cancelCalled = false;
      var fetchStub = sinon.stub(window, 'fetch', function() {
        return Promise.resolve({body: {
          cancel: function() { cancelCalled = true; }
        }});
      });
      element.fetchJSON('/dummy/url', null, function() { return true; }).then(
        function(obj) {
          assert.isUndefined(obj);
          assert.isTrue(cancelCalled);
          fetchStub.restore();
          done();
        });
    });

    test('parent diff comments are properly grouped', function(done) {
      var fetchJSONStub = sinon.stub(element, 'fetchJSON', function() {
        return Promise.resolve({
          '/COMMIT_MSG': [],
          'sieve.go': [
            {
              message: 'this isn’t quite right',
            },
            {
              side: 'PARENT',
              message: 'how did this work in the first place?',
            },
          ],
        });
      });
      element._getDiffComments('42', '', 'PARENT', 1, 'sieve.go').then(
        function(obj) {
          assert.equal(obj.baseComments.length, 1);
          assert.deepEqual(obj.baseComments[0], {
            side: 'PARENT',
            message: 'how did this work in the first place?',
            path: 'sieve.go',
          });
          assert.equal(obj.comments.length, 1);
          assert.deepEqual(obj.comments[0], {
            message: 'this isn’t quite right',
            path: 'sieve.go',
          });
          fetchJSONStub.restore();
          done();
        });
    });

    test('differing patch diff comments are properly grouped', function(done) {
      var fetchJSONStub = sinon.stub(element, 'fetchJSON', function(url) {
        if (url == '/changes/42/revisions/1') {
          return Promise.resolve({
            '/COMMIT_MSG': [],
            'sieve.go': [
              {
                message: 'this isn’t quite right',
              },
              {
                side: 'PARENT',
                message: 'how did this work in the first place?',
              },
            ],
          });
        } else if (url == '/changes/42/revisions/2') {
          return Promise.resolve({
            '/COMMIT_MSG': [],
            'sieve.go': [
              {
                message: 'What on earth are you thinking, here?',
              },
              {
                side: 'PARENT',
                message: 'Yeah not sure how this worked either?',
              },
              {
                message: '¯\\_(ツ)_/¯',
              },
            ],
          });
        }
      });
      element._getDiffComments('42', '', 1, 2, 'sieve.go').then(
        function(obj) {
          assert.equal(obj.baseComments.length, 1);
          assert.deepEqual(obj.baseComments[0], {
            message: 'this isn’t quite right',
            path: 'sieve.go',
          });
          assert.equal(obj.comments.length, 2);
          assert.deepEqual(obj.comments[0], {
            message: 'What on earth are you thinking, here?',
            path: 'sieve.go',
          });
          assert.deepEqual(obj.comments[1], {
            message: '¯\\_(ツ)_/¯',
            path: 'sieve.go',
          });
          fetchJSONStub.restore();
          done();
        });
    });

    test('special file path sorting', function() {
      assert.deepEqual(
          ['.b', '/COMMIT_MSG', '.a', 'file'].sort(
              element._specialFilePathCompare),
          ['/COMMIT_MSG', '.a', '.b', 'file']);

      assert.deepEqual(
          ['.b', '/COMMIT_MSG', 'foo/bar/baz.cc', 'foo/bar/baz.h'].sort(
              element._specialFilePathCompare),
          ['/COMMIT_MSG', '.b', 'foo/bar/baz.h', 'foo/bar/baz.cc']);

      assert.deepEqual(
          ['.b', '/COMMIT_MSG', 'foo/bar/baz.cc', 'foo/bar/baz.hpp'].sort(
              element._specialFilePathCompare),
          ['/COMMIT_MSG', '.b', 'foo/bar/baz.hpp', 'foo/bar/baz.cc']);

      assert.deepEqual(
          ['.b', '/COMMIT_MSG', 'foo/bar/baz.cc', 'foo/bar/baz.hxx'].sort(
              element._specialFilePathCompare),
          ['/COMMIT_MSG', '.b', 'foo/bar/baz.hxx', 'foo/bar/baz.cc']);

      assert.deepEqual(
          ['foo/bar.h', 'foo/bar.hxx', 'foo/bar.hpp'].sort(
              element._specialFilePathCompare),
          ['foo/bar.h', 'foo/bar.hpp', 'foo/bar.hxx']);
    });

    test('rebase always enabled', function(done) {
      var resolveFetchJSON;
      var fetchJSONStub = sinon.stub(element, 'fetchJSON').returns(
          new Promise(function(resolve) {
            resolveFetchJSON = resolve;
          }));
      element.getChangeRevisionActions('42', '1337').then(
          function(response) {
            assert.isTrue(response.rebase.enabled);
            fetchJSONStub.restore();
            done();
          });
      resolveFetchJSON({rebase: {}});
    });

    test('server error', function(done) {
      var getResponseObjectStub = sinon.stub(element, 'getResponseObject');
      var fetchStub = sinon.stub(window, 'fetch', function() {
        return Promise.resolve({ok: false});
      });
      var serverErrorEventPromise = new Promise(function(resolve) {
        element.addEventListener('server-error', function() { resolve(); });
      });

      element.fetchJSON().then(
          function(response) {
            assert.isUndefined(response);
            assert.isTrue(getResponseObjectStub.notCalled);
            getResponseObjectStub.restore();
            fetchStub.restore();
            serverErrorEventPromise.then(function() {
              done();
            });
          });
    });
  });
</script>