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77 lines
2.9 KiB
77 lines
2.9 KiB
require 'rails_helper'
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RSpec.describe Scale, type: :model do
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let(:school) { create(:school) }
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let(:academic_year) { create(:academic_year) }
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let(:scale) { create(:scale) }
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before do
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create(:survey, school:, academic_year:)
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end
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describe '.score' do
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let(:teacher_survey_item_1) { create(:teacher_survey_item, scale:) }
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let(:teacher_survey_item_2) { create(:teacher_survey_item, scale:) }
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let(:teacher_survey_item_3) { create(:teacher_survey_item, scale:) }
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let(:student_survey_item_1) { create(:student_survey_item, scale:) }
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context 'when only teacher survey items exist' do
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before :each do
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create(:survey_item_response,
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survey_item: teacher_survey_item_1, academic_year:, school:, likert_score: 3)
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create(:survey_item_response,
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survey_item: teacher_survey_item_2, academic_year:, school:, likert_score: 4)
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create(:survey_item_response,
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survey_item: teacher_survey_item_3, academic_year:, school:, likert_score: 5)
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end
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it 'returns the average of the likert scores of the survey items' do
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expect(scale.score(school:, academic_year:)).to eq 4
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end
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context 'when other scales exist' do
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before :each do
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create(:survey_item_response,
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academic_year:, school:, likert_score: 1)
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create(:survey_item_response,
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academic_year:, school:, likert_score: 1)
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create(:survey_item_response,
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academic_year:, school:, likert_score: 1)
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end
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it 'does not affect the score for the original scale' do
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expect(scale.score(school:, academic_year:)).to eq 4
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end
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end
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end
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context 'when both teacher and student survey items exist' do
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before :each do
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create(:survey_item_response,
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survey_item: teacher_survey_item_1, academic_year:, school:, likert_score: 3)
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create(:survey_item_response,
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survey_item: teacher_survey_item_2, academic_year:, school:, likert_score: 4)
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create(:survey_item_response,
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survey_item: teacher_survey_item_3, academic_year:, school:, likert_score: 5)
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end
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context 'but no survey item responses are linked to student survey items' do
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before :each do
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student_survey_item_1
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end
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it 'returns a score that only averages teacher survey items' do
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expect(scale.score(school:, academic_year:)).to eq 4
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end
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end
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context 'and some survey item responses exist for a student survey item' do
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before :each do
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create(:survey_item_response,
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survey_item: student_survey_item_1, academic_year:, school:, likert_score: 2)
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end
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it 'returns a score that gives equal weight to student and teacher survey items' do
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expect(scale.score(school:, academic_year:)).to eq 3
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end
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end
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end
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end
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end
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