Review semester with multiple assignments intergration test

test/integration/review_semester_with_multiple_assignments_test.rb

+require 'test_helper'
+
+class ReviewSemesterWithMultipleAssignmentsTest < ActionDispatch::IntegrationTest
+  def setup
+    @volunteer = create :volunteer
+    create :assignment, volunteer: @volunteer, period_start: time_z(2017, 12, 2)
+    create :group_assignment, volunteer: @volunteer, period_start: time_z(2017, 12, 2)
+    login_as create :user
+  end
+
+  test 'review semester should contain all missions' do
+    params = {
+      semester_process: {
+        kind: 'mail',
+        semester: '2018, 1',
+        subject: 'subject',
+        body: 'body',
+        semester_process_volunteers_attributes: {
+          0 => {
+            selected: 0,
+            volunteer_id: @volunteer.id
+          }
+        }
+      },
+      commit: 'Semester Prozess erfassen',
+      action: 'create',
+      semester: '2018, 1'
+    }
+    assert_difference 'SemesterProcessVolunteer.count', 1 do
+      post semester_processes_path, params: params
+    end
+    assert_equal SemesterProcessVolunteer.last.missions.count, 2
+  end
+end