Write integration tests for occlusion rendering

package.json

@@ -79,6 +79,9 @@
     "loader.js": "^4.6.0",
     "yuidoc-ember-theme": "^2.0.1"
   },
+  "resolutions": {
+    "ember-element-resize-detector": "0.3.0"
+  },
   "engines": {
     "node": "^4.5 || 6.* || >= 7.*"
   },

tests/integration/components/light-table-occlusion-test.js

@@ -0,0 +1,236 @@
+import { scrollTo } from 'ember-native-dom-helpers';
+import { setupRenderingTest } from 'ember-qunit';
+import { render, findAll, find, click } from '@ember/test-helpers';
+import { module, test } from 'qunit';
+import hbs from 'htmlbars-inline-precompile';
+import setupMirageTest from 'ember-cli-mirage/test-support/setup-mirage';
+import Table from 'ember-light-table';
+import Columns from '../../helpers/table-columns';
+import hasClass from '../../helpers/has-class';
+import RowComponent from 'ember-light-table/components/lt-row';
+import Component from '@ember/component';
+import { get, computed } from '@ember/object';
+
+module('Integration | Component | light table | occlusion', function(hooks) {
+  setupRenderingTest(hooks);
+  setupMirageTest(hooks);
+
+  hooks.beforeEach(function() {
+    this.actions = {};
+    this.send = (actionName, ...args) => this.actions[actionName].apply(this, args);
+  });
+
+  test('it renders', async function(assert) {
+    this.set('table', new Table());
+    await render(hbs `{{light-table table height="40vh" occlusion=true estimatedRowHeight=30}}`);
+
+    assert.equal(find('*').textContent.trim(), '');
+  });
+
+  test('takes 50 rows, renders some rows with scrollbar and occludes the rest', async function(assert) {
+    assert.expect(3);
+
+    this.set('table', new Table(Columns, this.server.createList('user', 50)));
+
+    await render(hbs `
+      {{#light-table table height='40vh' occlusion=true estimatedRowHeight=30 as |t|}}
+        {{t.head fixed=true}}
+        {{t.body}}
+      {{/light-table}}
+    `);
+
+    assert.ok(findAll('.vertical-collection tbody.lt-body tr.lt-row').length < 30, 'only some rows are rendered');
+
+    let scrollContainer = 'vertical-collection';
+    let { scrollHeight } = find(scrollContainer);
+
+    assert.ok(findAll(scrollContainer).length > 0, 'scroll container was rendered');
+    assert.ok(scrollHeight > 1500, 'scroll height is 50 rows * 30 px per row + header size');
+
+    await scrollTo(scrollContainer, 0, scrollHeight);
+  });
+
+  test('fixed header', async function(assert) {
+    assert.expect(2);
+    this.set('table', new Table(Columns, this.server.createList('user', 5)));
+
+    await render(hbs `
+      {{#light-table table height='500px' id='lightTable' occlusion=true estimatedRowHeight=30 as |t|}}
+        {{t.head fixed=true}}
+        {{t.body}}
+      {{/light-table}}
+    `);
+
+    assert.equal(findAll('#lightTable_inline_head thead').length, 0);
+
+    await render(hbs `
+      {{#light-table table height='500px' id='lightTable' occlusion=true estimatedRowHeight=30 as |t|}}
+        {{t.head fixed=false}}
+        {{t.body}}
+      {{/light-table}}
+    `);
+
+    assert.equal(findAll('#lightTable_inline_head thead').length, 1);
+  });
+
+  test('fixed footer', async function(assert) {
+    assert.expect(2);
+    this.set('table', new Table(Columns, this.server.createList('user', 5)));
+
+    await render(hbs `
+      {{#light-table table height='500px' id='lightTable' occlusion=true estimatedRowHeight=30 as |t|}}
+        {{t.body}}
+        {{t.foot fixed=true}}
+      {{/light-table}}
+    `);
+
+    assert.equal(findAll('#lightTable_inline_foot tfoot').length, 0);
+
+    await render(hbs `
+      {{#light-table table height='500px' id='lightTable' occlusion=true estimatedRowHeight=30 as |t|}}
+        {{t.body}}
+        {{t.foot fixed=false}}
+      {{/light-table}}
+    `);
+
+    assert.equal(findAll('#lightTable_inline_foot tfoot').length, 1);
+  });
+
+  test('table assumes height of container', async function(assert) {
+
+    this.set('table', new Table(Columns, this.server.createList('user', 5)));
+    this.set('fixed', true);
+
+    await render(hbs `
+      <div style="height: 500px">
+        {{#light-table table id='lightTable' occlusion=true estimatedRowHeight=30 as |t|}}
+          {{t.body}}
+          {{t.foot fixed=fixed}}
+        {{/light-table}}
+      </div>
+    `);
+
+    assert.equal(find('#lightTable').offsetHeight, 500, 'table is 500px height');
+
+  });
+
+  test('table body should consume all available space when not enough content to fill it', async function(assert) {
+    this.set('table', new Table(Columns, this.server.createList('user', 1)));
+    this.set('fixed', true);
+
+    await render(hbs `
+      <div style="height: 500px">
+        {{#light-table table id='lightTable' occlusion=true estimatedRowHeight=30 as |t|}}
+          {{t.head fixed=true}}
+          {{t.body}}
+          {{#t.foot fixed=true}}
+            Hello World
+          {{/t.foot}}
+        {{/light-table}}
+      </div>
+    `);
+
+    const bodyHeight = find('.lt-body-wrap').offsetHeight;
+    const headHeight = find('.lt-head-wrap').offsetHeight;
+    const footHeight = find('.lt-foot-wrap').offsetHeight;
+
+    assert.equal(bodyHeight + headHeight + footHeight, 500, 'combined table content is 500px tall');
+    assert.ok(bodyHeight > (headHeight + footHeight), 'body is tallest element');
+  });
+
+  test('accepts components that are used in the body', async function(assert) {
+
+    this.owner.register('component:custom-row', RowComponent);
+
+    this.set('table', new Table(Columns, this.server.createList('user', 1)));
+
+    await render(hbs `
+      {{#light-table table occlusion=true estimatedRowHeight=30 as |t|}}
+        {{t.body rowComponent=(component "custom-row" classNames="custom-row")}}
+      {{/light-table}}
+    `);
+
+    assert.equal(findAll('.lt-row.custom-row').length, 1, 'row has custom-row class');
+  });
+
+  test('passed in components can have computed properties', async function(assert) {
+
+    this.owner.register('component:custom-row', RowComponent.extend({
+      classNameBindings: ['isActive'],
+      current: null,
+      isActive: computed('row.content', 'current', function() {
+        return this.get('row.content') === this.get('current');
+      })
+    }));
+
+    let users = this.server.createList('user', 3);
+    this.set('table', new Table(Columns, users));
+
+    await render(hbs `
+      {{#light-table table height='500px' occlusion=true estimatedRowHeight=30 as |t|}}
+        {{t.body
+          rowComponent=(component "custom-row" classNames="custom-row" current=current)
+        }}
+      {{/light-table}}
+    `);
+
+    assert.equal(findAll('.custom-row').length, 3, 'three custom rows were rendered');
+    assert.notOk(find('.custom-row.is-active'), 'none of the items are active');
+
+    this.set('current', users[0]);
+    let firstRow = find('.custom-row:nth-child(2)');
+    assert.ok(hasClass(firstRow, 'is-active'), 'first custom row is active');
+
+    this.set('current', users[2]);
+    let thirdRow = find('.custom-row:nth-child(4)');
+    assert.ok(hasClass(thirdRow, 'is-active'), 'third custom row is active');
+
+    this.set('current', null);
+
+    assert.notOk(find('.custom-row.is-active'), 'none of the items are active');
+  });
+
+  test('extra data and tableActions', async function(assert) {
+    assert.expect(4);
+
+    this.owner.register('component:some-component', Component.extend({
+      classNames: 'some-component',
+      didReceiveAttrs() {
+        assert.equal(get(this, 'extra.someData'), 'someValue', 'extra data is passed');
+      },
+      click() {
+        get(this, 'tableActions.someAction')();
+      }
+    }));
+
+    const columns = [{
+      component: 'some-component',
+      cellComponent: 'some-component'
+    }];
+
+    this.set('table', new Table(columns, [{}]));
+
+    this.actions.someAction = () => {
+      assert.ok(true, 'table action is passed');
+    };
+
+    await render(hbs `
+      {{#light-table table
+        occlusion=true
+        estimatedRowHeight=30
+        extra=(hash someData="someValue")
+        tableActions=(hash
+          someAction=(action "someAction")
+        )
+        as |t|
+      }}
+        {{t.head}}
+        {{t.body}}
+      {{/light-table}}
+    `);
+
+    for (const element of findAll('.some-component')) {
+      await click(element);
+    }
+  });
+});