Merge pull request #4844 from indirectlylit/tests

adding tests for data helpers

kolibri/plugins/coach/assets/src/modules/classSummary/__test__/dataHelpers.spec.js

@@ -0,0 +1,109 @@
+import Vuex from 'vuex';
+import summaryModule from '../index';
+
+import sampleState from './sampleState2';
+
+describe('coach summary data helpers', () => {
+  summaryModule.state = sampleState;
+  const store = new Vuex.Store(summaryModule);
+  describe('getGroupNames', () => {
+    it('returns the names of groups given a list of group IDs', () => {
+      expect(store.getters.getGroupNames(['group_id_1', 'group_id_3'])).toEqual([
+        'Group 1',
+        'Group 3',
+      ]);
+    });
+  });
+  describe('getGroupNamesForLearner', () => {
+    it('returns the names of groups given a learner ID', () => {
+      expect(store.getters.getGroupNamesForLearner('learner_id_5')).toEqual(['Group 2', 'Group 3']);
+      expect(store.getters.getGroupNamesForLearner('learner_id_4')).toEqual(['Group 4']);
+    });
+  });
+  describe('getLearnersForGroups', () => {
+    it('returns everyone in the class when empty', () => {
+      expect(store.getters.getLearnersForGroups([])).toEqual(
+        store.getters.learners.map(learner => learner.id)
+      );
+    });
+    it('returns the learner IDs of everyone in the groups with no duplicates', () => {
+      const output = store.getters.getLearnersForGroups(['group_id_2', 'group_id_3']);
+      output.sort();
+      expect(output).toEqual([
+        'learner_id_1',
+        'learner_id_11',
+        'learner_id_2',
+        'learner_id_5',
+        'learner_id_6',
+        'learner_id_7',
+        'learner_id_8',
+        'learner_id_9',
+      ]);
+    });
+  });
+  describe('getContentStatusForLearner', () => {
+    it('returns a recorded status string given a content ID and learner ID', () => {
+      expect(store.getters.getContentStatusForLearner('content_Q', 'learner_id_1')).toEqual(
+        'completed'
+      );
+      expect(store.getters.getContentStatusForLearner('content_Q', 'learner_id_2')).toEqual(
+        'started'
+      );
+      expect(store.getters.getContentStatusForLearner('content_Q', 'learner_id_3')).toEqual(
+        'not_started'
+      );
+      expect(store.getters.getContentStatusForLearner('content_Q', 'learner_id_4')).toEqual(
+        'help_needed'
+      );
+    });
+    it('returns "not_started" when passed unknown information', () => {
+      expect(store.getters.getContentStatusForLearner('content_Q', 'learner_id_7')).toEqual(
+        'not_started'
+      );
+      expect(store.getters.getContentStatusForLearner('XXXX', 'learner_id_5')).toEqual(
+        'not_started'
+      );
+      expect(store.getters.getContentStatusForLearner('learner_id_5', 'XXXX')).toEqual(
+        'not_started'
+      );
+      expect(store.getters.getContentStatusForLearner('XXXX', 'XXXX')).toEqual('not_started');
+    });
+  });
+  describe('getContentStatusCounts', () => {
+    it('returns total statuses given a content item and a list of learners', () => {
+      const output = store.getters.getContentStatusCounts('content_Q', [
+        'learner_id_1',
+        'learner_id_2',
+        'learner_id_3',
+        'learner_id_4',
+        'learner_id_5',
+        'learner_id_6',
+        'learner_id_7',
+        'learner_id_8',
+        'learner_id_9',
+      ]);
+      expect(output).toEqual({
+        completed: 2,
+        started: 2,
+        notStarted: 4,
+        helpNeeded: 1,
+      });
+    });
+  });
+  describe('getContentAvgTimeSpent', () => {
+    it('returns average time a list of learners has worked on an item, omitting not started', () => {
+      const output = store.getters.getContentAvgTimeSpent('content_Q', [
+        'learner_id_1',
+        'learner_id_2',
+        'learner_id_3',
+        'learner_id_4',
+        'learner_id_5',
+        'learner_id_6',
+        'learner_id_7',
+        'learner_id_8',
+        'learner_id_9',
+      ]);
+      expect(output).toBeCloseTo(7.3, 5);
+    });
+  });
+});