add i18n alphabetic sorting to assignment details table

fixes CNVS-34062

Test Plan

Note about proper sorting: Characters that are part of the language's
alphabet (like an n with a tilde in english) should sort close to the
non-accented character (n), but characters outside the language's
alphabet (cyrillic characters) should sort to the bottom.

1. Verify list of assignments is properly sorted by student name.

Change-Id: I788aa08f91b0d1349746ab0a4ba9eb48d4ca24fc
Reviewed-on: https://gerrit.instructure.com/101262
Tested-by: Jenkins
Reviewed-by: Shahbaz Javeed <sjaveed@instructure.com>
Reviewed-by: Jeremy Neander <jneander@instructure.com>
QA-Review: Anju Reddy <areddy@instructure.com>
Product-Review: Keith T. Garner <kgarner@instructure.com>

lib/submission_list.rb

@@ -182,10 +182,11 @@ class SubmissionList
         h
       end
 
-      hsh.each do |k, v|
+      hsh.each_value do |v|
+        v['submissions'] = Canvas::ICU.collate_by(v.submissions, &:student_name)
         v.submission_count = v.submissions.size
       end
-      # puts "-------------------------------Time Spent in assignments_for_grader_and_day: #{Time.now-start}-------------------------------"
+
       hsh.values
     end
 

spec/lib/submission_list_spec.rb

@@ -140,6 +140,7 @@ describe SubmissionList do
       end
     end
 
+    context "submissions" do
       it "should be able to loop on submissions" do
         available_keys = [
           :assignment_id, :assignment_name, :attachment_id, :attachment_ids,
@@ -166,6 +167,14 @@ describe SubmissionList do
         end
       end
 
+      it "sorts submissions alphabetically by student name" do
+        day = SubmissionList.days(@course)[0]
+        submissions = day.graders[0].assignments[0].submissions
+        expect(submissions[0].student_name).to eql('student')
+        expect(submissions[1].student_name).to eql('studeñt')
+        expect(submissions[2].student_name).to eql('studeЖt')
+      end
+    end
   end
 
   context "real data inspection" do
@@ -313,7 +322,7 @@ def interesting_submission_data(opts={})
 
   @grader = user_model({:name => 'some_grader'}.merge(opts[:grader]))
   @grader2 = user_model({:name => 'another_grader'}.merge(opts[:grader]))
-  @student = factory_with_protected_attributes(User, {:name => "some student", :workflow_state => "registered"}.merge(opts[:user]))
+  @student = factory_with_protected_attributes(User, {:name => "studeñt", :workflow_state => "registered"}.merge(opts[:user]))
   @course = factory_with_protected_attributes(Course, {:name => "some course", :workflow_state => "available"}.merge(opts[:course]))
   [@grader, @grader2].each do |grader|
     e = @course.enroll_teacher(grader)
@@ -329,11 +338,11 @@ def interesting_submission_data(opts={})
   @assignment.grade_student(@student, {:grade => 1.5, :grader => @grader}.merge(opts[:submission]))
   @assignment.grade_student(@student, {:grade => 3, :grader => @grader}.merge(opts[:submission]))
   @assignment.grade_student(@student, {:grade => 5, :grader => @grader2}.merge(opts[:submission]))
-  @student = user_model(:name => 'another student')
+  @student = user_model(:name => 'studeЖt')
   @course.enroll_student(@student)
   @assignment.reload
   @assignment.grade_student(@student, {:grade => 8, :grader => @grader}.merge(opts[:submission]))
-  @student = user_model(:name => 'smart student')
+  @student = user_model(:name => 'student')
   @course.enroll_student(@student)
   @assignment.reload
   @assignment.grade_student(@student, {:grade => 10, :grader => @grader}.merge(opts[:submission]))