mirror of
https://github.com/discourse/discourse.git
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399 lines
16 KiB
JavaScript
399 lines
16 KiB
JavaScript
module("Discourse.PostStream");
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var buildStream = function(id, stream) {
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var topic = Discourse.Topic.create({id: id});
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var ps = topic.get('postStream');
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if (stream) {
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ps.set('stream', stream);
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}
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return ps;
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};
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var participant = {username: 'eviltrout'};
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test('defaults', function() {
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var postStream = buildStream(1234);
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blank(postStream.get('posts'), "there are no posts in a stream by default");
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ok(!postStream.get('loaded'), "it has never loaded");
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present(postStream.get('topic'));
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});
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test('appending posts', function() {
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var postStream = buildStream(4567, [1, 3, 4]);
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equal(postStream.get('lastPostId'), 4, "the last post id is 4");
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ok(!postStream.get('hasPosts'), "there are no posts by default");
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ok(!postStream.get('firstPostLoaded'), "the first post is not loaded");
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ok(!postStream.get('lastPostLoaded'), "the last post is not loaded");
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equal(postStream.get('posts.length'), 0, "it has no posts initially");
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postStream.appendPost(Discourse.Post.create({id: 2, post_number: 2}));
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ok(!postStream.get('firstPostLoaded'), "the first post is still not loaded");
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equal(postStream.get('posts.length'), 1, "it has one post in the stream");
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postStream.appendPost(Discourse.Post.create({id: 4, post_number: 4}));
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ok(!postStream.get('firstPostLoaded'), "the first post is still loaded");
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ok(postStream.get('lastPostLoaded'), "the last post is now loaded");
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equal(postStream.get('posts.length'), 2, "it has two posts in the stream");
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postStream.appendPost(Discourse.Post.create({id: 4, post_number: 4}));
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equal(postStream.get('posts.length'), 2, "it will not add the same post with id twice");
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var stagedPost = Discourse.Post.create({raw: 'incomplete post'});
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postStream.appendPost(stagedPost);
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equal(postStream.get('posts.length'), 3, "it can handle posts without ids");
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postStream.appendPost(stagedPost);
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equal(postStream.get('posts.length'), 3, "it won't add the same post without an id twice");
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// change the stream
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postStream.set('stream', [1, 2, 4]);
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ok(!postStream.get('firstPostLoaded'), "the first post no longer loaded since the stream changed.");
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ok(postStream.get('lastPostLoaded'), "the last post is still the last post in the new stream");
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});
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test('closestPostNumberFor', function() {
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var postStream = buildStream(1231);
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blank(postStream.closestPostNumberFor(1), "there is no closest post when nothing is loaded");
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postStream.appendPost(Discourse.Post.create({id: 1, post_number: 2}));
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postStream.appendPost(Discourse.Post.create({id: 2, post_number: 3}));
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equal(postStream.closestPostNumberFor(2), 2, "If a post is in the stream it returns its post number");
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equal(postStream.closestPostNumberFor(3), 3, "If a post is in the stream it returns its post number");
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equal(postStream.closestPostNumberFor(10), 3, "it clips to the upper bound of the stream");
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equal(postStream.closestPostNumberFor(0), 2, "it clips to the lower bound of the stream");
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});
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test('updateFromJson', function() {
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var postStream = buildStream(1231);
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postStream.updateFromJson({
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posts: [{id: 1}],
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stream: [1],
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extra_property: 12
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});
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equal(postStream.get('posts.length'), 1, 'it loaded the posts');
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containsInstance(postStream.get('posts'), Discourse.Post);
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equal(postStream.get('extra_property'), 12);
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});
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test("removePosts", function() {
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var postStream = buildStream(10000001, [1,2,3]);
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var p1 = Discourse.Post.create({id: 1, post_number: 2}),
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p2 = Discourse.Post.create({id: 2, post_number: 3}),
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p3 = Discourse.Post.create({id: 3, post_number: 4});
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postStream.appendPost(p1);
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postStream.appendPost(p2);
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postStream.appendPost(p3);
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// Removing nothing does nothing
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postStream.removePosts();
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equal(postStream.get('posts.length'), 3);
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postStream.removePosts([p1, p3]);
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equal(postStream.get('posts.length'), 1);
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deepEqual(postStream.get('stream'), [2]);
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});
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test("cancelFilter", function() {
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var postStream = buildStream(1235);
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this.stub(postStream, "refresh");
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postStream.set('bestOf', true);
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postStream.cancelFilter();
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ok(!postStream.get('bestOf'), "best of is cancelled");
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postStream.toggleParticipant(participant);
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postStream.cancelFilter();
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blank(postStream.get('userFilters'), "cancelling the filters clears the userFilters");
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});
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test("toggleParticipant", function() {
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var postStream = buildStream(1236);
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this.stub(postStream, "refresh");
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equal(postStream.get('userFilters.length'), 0, "by default no participants are toggled");
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postStream.toggleParticipant(participant.username);
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ok(postStream.get('userFilters').contains('eviltrout'), 'eviltrout is in the filters');
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postStream.toggleParticipant(participant.username);
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blank(postStream.get('userFilters'), "toggling the participant again removes them");
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});
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test("streamFilters", function() {
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var postStream = buildStream(1237);
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this.stub(postStream, "refresh");
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deepEqual(postStream.get('streamFilters'), {}, "there are no postFilters by default");
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ok(postStream.get('hasNoFilters'), "there are no filters by default");
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blank(postStream.get("filterDesc"), "there is no description of the filter");
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postStream.set('bestOf', true);
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deepEqual(postStream.get('streamFilters'), {filter: "best_of"}, "postFilters contains the bestOf flag");
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ok(!postStream.get('hasNoFilters'), "now there are filters present");
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present(postStream.get("filterDesc"), "there is a description of the filter");
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postStream.toggleParticipant(participant.username);
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deepEqual(postStream.get('streamFilters'), {
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filter: "best_of",
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username_filters: ['eviltrout']
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}, "streamFilters contains the username we filtered");
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});
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test("loading", function() {
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var postStream = buildStream(1234);
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ok(!postStream.get('loading'), "we're not loading by default");
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postStream.set('loadingAbove', true);
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ok(postStream.get('loading'), "we're loading if loading above");
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postStream = buildStream(1234);
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postStream.set('loadingBelow', true);
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ok(postStream.get('loading'), "we're loading if loading below");
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postStream = buildStream(1234);
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postStream.set('loadingFilter', true);
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ok(postStream.get('loading'), "we're loading if loading a filter");
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});
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test("nextWindow", function() {
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Discourse.SiteSettings.posts_per_page = 5;
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var postStream = buildStream(1234, [1,2,3,5,8,9,10,11,13,14,15,16]);
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blank(postStream.get('nextWindow'), 'With no posts loaded, the window is blank');
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postStream.updateFromJson({ posts: [{id: 1}, {id: 2}] });
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deepEqual(postStream.get('nextWindow'), [3,5,8,9,10],
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"If we've loaded the first 2 posts, the window should be the 5 after that");
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postStream.updateFromJson({ posts: [{id: 13}] });
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deepEqual(postStream.get('nextWindow'), [14, 15, 16], "Boundary check: stop at the end.");
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postStream.updateFromJson({ posts: [{id: 16}] });
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blank(postStream.get('nextWindow'), "Once we've seen everything there's nothing to load.");
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});
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test("previousWindow", function() {
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Discourse.SiteSettings.posts_per_page = 5;
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var postStream = buildStream(1234, [1,2,3,5,8,9,10,11,13,14,15,16]);
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blank(postStream.get('previousWindow'), 'With no posts loaded, the window is blank');
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postStream.updateFromJson({ posts: [{id: 11}, {id: 13}] });
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deepEqual(postStream.get('previousWindow'), [3, 5, 8, 9, 10],
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"If we've loaded in the middle, it's the previous 5 posts");
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postStream.updateFromJson({ posts: [{id: 3}] });
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deepEqual(postStream.get('previousWindow'), [1, 2], "Boundary check: stop at the beginning.");
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postStream.updateFromJson({ posts: [{id: 1}] });
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blank(postStream.get('previousWindow'), "Once we've seen everything there's nothing to load.");
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});
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test("storePost", function() {
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var postStream = buildStream(1234);
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var post = Discourse.Post.create({id: 1, post_number: 1, raw: 'initial value'});
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var stored = postStream.storePost(post);
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equal(post, stored, "it returns the post it stored");
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equal(post.get('topic'), postStream.get('topic'), "it creates the topic reference properly");
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var dupePost = Discourse.Post.create({id: 1, post_number: 1, raw: 'updated value'});
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var storedDupe = postStream.storePost(dupePost);
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equal(storedDupe, post, "it returns the previously stored post instead to avoid dupes");
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equal(storedDupe.get('raw'), 'updated value', 'it updates the previously stored post');
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var postWithoutId = Discourse.Post.create({raw: 'hello world'});
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stored = postStream.storePost(postWithoutId);
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equal(stored, postWithoutId, "it returns the same post back");
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equal(postStream.get('postIdentityMap.length'), 1, "it does not add a new entry into the identity map");
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});
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test("identity map", function() {
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var postStream = buildStream(1234);
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var p1 = postStream.appendPost(Discourse.Post.create({id: 1, post_number: 1}));
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var p3 = postStream.appendPost(Discourse.Post.create({id: 3, post_number: 4}));
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equal(postStream.findLoadedPost(1), p1, "it can return cached posts by id");
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blank(postStream.findLoadedPost(4), "it can't find uncached posts");
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deepEqual(postStream.listUnloadedIds([10, 11, 12]), [10, 11, 12], "it returns a list of all unloaded ids");
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blank(postStream.listUnloadedIds([1, 3]), "if we have loaded all posts it's blank");
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deepEqual(postStream.listUnloadedIds([1, 2, 3, 4]), [2, 4], "it only returns unloaded posts");
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});
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asyncTestDiscourse("loadIntoIdentityMap with no data", function() {
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var postStream = buildStream(1234);
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expect(1);
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this.stub(Discourse, "ajax");
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postStream.loadIntoIdentityMap([]).then(function() {
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ok(!Discourse.ajax.calledOnce, "an empty array returned a promise yet performed no ajax request");
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start();
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});
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});
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asyncTestDiscourse("loadIntoIdentityMap with post ids", function() {
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var postStream = buildStream(1234);
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expect(1);
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this.stub(Discourse, "ajax").returns(Ember.RSVP.resolve({
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post_stream: {
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posts: [{id: 10, post_number: 10}]
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}
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}));
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postStream.loadIntoIdentityMap([10]).then(function() {
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present(postStream.findLoadedPost(10), "it adds the returned post to the store");
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start();
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});
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});
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test("staging and undoing a new post", function() {
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var postStream = buildStream(10101, [1]);
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postStream.appendPost(Discourse.Post.create({id: 1, post_number: 1}));
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var user = Discourse.User.create({username: 'eviltrout', name: 'eviltrout', id: 321});
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var stagedPost = Discourse.Post.create({ raw: 'hello world this is my new post' });
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var topic = postStream.get('topic');
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topic.setProperties({
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posts_count: 1,
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highest_post_number: 1
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});
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// Stage the new post in the stream
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var result = postStream.stagePost(stagedPost, user);
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equal(result, true, "it returns true");
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equal(topic.get('highest_post_number'), 2, "it updates the highest_post_number");
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ok(postStream.get('loading'), "it is loading while the post is being staged");
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equal(topic.get('posts_count'), 2, "it increases the post count");
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present(topic.get('last_posted_at'), "it updates last_posted_at");
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equal(topic.get('details.last_poster'), user, "it changes the last poster");
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equal(stagedPost.get('topic'), topic, "it assigns the topic reference");
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equal(stagedPost.get('post_number'), 2, "it is assigned the probable post_number");
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equal(postStream.get('filteredPostsCount'), 1, "it retains the filteredPostsCount");
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present(stagedPost.get('created_at'), "it is assigned a created date");
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ok(postStream.get('posts').contains(stagedPost), "the post is added to the stream");
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blank(stagedPost.get('id'), "the post has no id yet");
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// Undoing a created post (there was an error)
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postStream.undoPost(stagedPost);
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ok(!postStream.get('loading'), "it is no longer loading");
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equal(topic.get('highest_post_number'), 1, "it reverts the highest_post_number");
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equal(topic.get('posts_count'), 1, "it reverts the post count");
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equal(postStream.get('filteredPostsCount'), 1, "it retains the filteredPostsCount");
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ok(!postStream.get('posts').contains(stagedPost), "the post is removed from the stream");
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});
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test("staging and committing a post", function() {
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var postStream = buildStream(10101, [1]);
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postStream.appendPost(Discourse.Post.create({id: 1, post_number: 1}));
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var user = Discourse.User.create({username: 'eviltrout', name: 'eviltrout', id: 321});
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var stagedPost = Discourse.Post.create({ raw: 'hello world this is my new post' });
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var topic = postStream.get('topic');
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topic.set('posts_count', 1);
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// Stage the new post in the stream
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var result = postStream.stagePost(stagedPost, user);
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equal(result, true, "it returns true");
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ok(postStream.get('loading'), "it is loading while the post is being staged");
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stagedPost.setProperties({ id: 1234, raw: "different raw value" });
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equal(postStream.get('filteredPostsCount'), 1, "it retains the filteredPostsCount");
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result = postStream.stagePost(stagedPost, user);
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equal(result, false, "you can't stage a post while it is currently staging");
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postStream.commitPost(stagedPost);
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ok(postStream.get('posts').contains(stagedPost), "the post is still in the stream");
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ok(!postStream.get('loading'), "it is no longer loading");
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equal(postStream.get('filteredPostsCount'), 2, "it increases the filteredPostsCount");
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var found = postStream.findLoadedPost(stagedPost.get('id'));
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present(found, "the post is in the identity map");
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ok(postStream.indexOf(stagedPost) > -1, "the post is in the stream");
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equal(found.get('raw'), 'different raw value', 'it also updated the value in the stream');
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});
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test('triggerNewPostInStream', function() {
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var postStream = buildStream(225566);
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this.stub(postStream, 'appendMore');
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this.stub(postStream, 'refresh');
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postStream.triggerNewPostInStream(null);
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ok(!postStream.appendMore.calledOnce, "asking for a null id does nothing");
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postStream.toggleBestOf();
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postStream.triggerNewPostInStream(1);
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ok(!postStream.appendMore.calledOnce, "it will not trigger when bestOf is active");
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postStream.cancelFilter();
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postStream.toggleParticipant('eviltrout');
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postStream.triggerNewPostInStream(1);
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ok(!postStream.appendMore.calledOnce, "it will not trigger when a participant filter is active");
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postStream.cancelFilter();
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postStream.triggerNewPostInStream(1);
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ok(!postStream.appendMore.calledOnce, "it wont't delegate to appendMore because the last post is not loaded");
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postStream.cancelFilter();
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postStream.appendPost(Discourse.Post.create({id: 1, post_number: 2}));
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postStream.triggerNewPostInStream(2);
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ok(postStream.appendMore.calledOnce, "delegates to appendMore because the last post is loaded");
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});
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test("lastPostLoaded when the id changes", function() {
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// This can happen in a race condition between staging a post and it coming through on the
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// message bus. If the id of a post changes we should reconsider the lastPostLoaded property.
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var postStream = buildStream(10101, [1, 2]);
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var postWithoutId = Discourse.Post.create({ raw: 'hello world this is my new post' });
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postStream.appendPost(Discourse.Post.create({id: 1, post_number: 1}));
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postStream.appendPost(postWithoutId);
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ok(!postStream.get('lastPostLoaded'), 'the last post is not loaded');
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postWithoutId.set('id', 2);
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ok(postStream.get('lastPostLoaded'), 'the last post is loaded now that the post has an id');
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});
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test("comitting and triggerNewPostInStream race condition", function() {
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var postStream = buildStream(4964);
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postStream.appendPost(Discourse.Post.create({id: 1, post_number: 1}));
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var user = Discourse.User.create({username: 'eviltrout', name: 'eviltrout', id: 321});
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var stagedPost = Discourse.Post.create({ raw: 'hello world this is my new post' });
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var result = postStream.stagePost(stagedPost, user);
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equal(postStream.get('filteredPostsCount'), 0, "it has no filteredPostsCount yet");
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stagedPost.set('id', 123);
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this.stub(postStream, 'appendMore');
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postStream.triggerNewPostInStream(123);
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equal(postStream.get('filteredPostsCount'), 1, "it added the post");
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postStream.commitPost(stagedPost);
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equal(postStream.get('filteredPostsCount'), 1, "it does not add the same post twice");
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});
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