chore: init commit

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

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

@@ -0,0 +1,47 @@
+# frozen_string_literal: true
+
+require "test_helper"
+
+class TeacherTest < ActiveSupport::TestCase
+  test "inherits from User" do
+    teacher = create(:teacher)
+    assert_kind_of User, teacher
+    assert_equal "Teacher", teacher.type
+  end
+
+  test "email is required" do
+    teacher = build(:teacher, email: nil)
+    assert_not teacher.valid?
+    assert_includes teacher.errors[:email], "can't be blank"
+  end
+
+  test "username is automatically set to email" do
+    teacher = create(:teacher, email: "jane@school.com")
+    assert_equal "jane@school.com", teacher.username
+  end
+
+  test "username updates when email changes" do
+    teacher = create(:teacher, email: "jane@school.com")
+    teacher.update!(email: "jane.new@school.com")
+    assert_equal "jane.new@school.com", teacher.username
+  end
+
+  test "display_name returns name field" do
+    teacher = create(:teacher, name: "Jane Smith")
+    assert_equal "Jane Smith", teacher.display_name
+  end
+
+  test "display_name falls back to email prefix when name is blank" do
+    teacher = create(:teacher, name: nil, email: "jane@school.com")
+    assert_equal "jane", teacher.display_name
+  end
+
+  test "can manage students in same classroom" do
+    classroom = create(:classroom)
+    teacher = create(:teacher, classroom: classroom)
+    student = create(:student, classroom: classroom)
+
+    assert_equal classroom, teacher.classroom
+    assert_equal classroom, student.classroom
+  end
+end