chore: init commit

in worker.../repo/GITFOLDER.zip is the .git folder.

worker-toolkit-stocks-in-the-future/repo/test/models/teacher_classroom_test.rb

@@ -0,0 +1,59 @@
+# frozen_string_literal: true
+
+require "test_helper"
+
+class TeacherClassroomTest < ActiveSupport::TestCase
+  test "valid teacher_classroom" do
+    teacher = create(:teacher)
+    classroom = create(:classroom)
+    teacher_classroom = TeacherClassroom.new(teacher: teacher, classroom: classroom)
+
+    assert teacher_classroom.valid?
+  end
+
+  test "requires teacher" do
+    classroom = create(:classroom)
+    teacher_classroom = TeacherClassroom.new(classroom: classroom)
+
+    assert_not teacher_classroom.valid?
+    assert_includes teacher_classroom.errors[:teacher], "must exist"
+  end
+
+  test "requires classroom" do
+    teacher = create(:teacher)
+    teacher_classroom = TeacherClassroom.new(teacher: teacher)
+
+    assert_not teacher_classroom.valid?
+    assert_includes teacher_classroom.errors[:classroom], "must exist"
+  end
+
+  test "validates uniqueness of teacher_id scoped to classroom_id" do
+    teacher = create(:teacher)
+    classroom = create(:classroom)
+
+    TeacherClassroom.create!(teacher: teacher, classroom: classroom)
+
+    duplicate = TeacherClassroom.new(teacher: teacher, classroom: classroom)
+
+    assert_not duplicate.valid?
+    assert_includes duplicate.errors[:teacher_id], "has already been taken"
+  end
+
+  test "allows same teacher in different classrooms" do
+    teacher = create(:teacher)
+    classroom1 = create(:classroom)
+    classroom2 = create(:classroom)
+
+    assert TeacherClassroom.create(teacher: teacher, classroom: classroom1)
+    assert TeacherClassroom.create(teacher: teacher, classroom: classroom2)
+  end
+
+  test "allows different teachers in same classroom" do
+    teacher1 = create(:teacher)
+    teacher2 = create(:teacher)
+    classroom = create(:classroom)
+
+    assert TeacherClassroom.create(teacher: teacher1, classroom: classroom)
+    assert TeacherClassroom.create(teacher: teacher2, classroom: classroom)
+  end
+end