More tests

test/controllers/invitations_controller_test.rb

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+require "test_helper"
+
+class InvitationsControllerTest < ActionDispatch::IntegrationTest
+  setup do
+    @user = User.create!(
+      email_address: "pending@example.com",
+      password: "password123",
+      status: :pending_invitation
+    )
+    @token = @user.generate_token_for(:invitation_login)
+  end
+
+  test "should show invitation form with valid token" do
+    get invitation_path(@token)
+
+    assert_response :success
+    assert_select "h1", "Welcome to Clinch!"
+    assert_select "form[action='#{invitation_path(@token)}']"
+    assert_select "input[type='password'][name='password']"
+    assert_select "input[type='password'][name='password_confirmation']"
+  end
+
+  test "should redirect to sign in with invalid token" do
+    get invitation_path("invalid_token")
+
+    assert_redirected_to signin_path
+    assert_equal "Invitation link is invalid or has expired.", flash[:alert]
+  end
+
+  test "should redirect to sign in when user is not pending invitation" do
+    active_user = User.create!(
+      email_address: "active@example.com",
+      password: "password123",
+      status: :active
+    )
+    token = active_user.generate_token_for(:invitation_login)
+
+    get invitation_path(token)
+
+    assert_redirected_to signin_path
+    assert_equal "This invitation has already been used or is no longer valid.", flash[:alert]
+  end
+
+  test "should accept invitation with valid password" do
+    put invitation_path(@token), params: {
+      password: "newpassword123",
+      password_confirmation: "newpassword123"
+    }
+
+    assert_redirected_to root_path
+    assert_equal "Your account has been set up successfully. Welcome!", flash[:notice]
+
+    @user.reload
+    assert_equal "active", @user.status
+    assert @user.authenticate("newpassword123")
+    assert cookies[:session_id] # Should be signed in
+  end
+
+  test "should reject invitation with password mismatch" do
+    put invitation_path(@token), params: {
+      password: "newpassword123",
+      password_confirmation: "differentpassword"
+    }
+
+    assert_redirected_to invitation_path(@token)
+    assert_equal "Passwords did not match.", flash[:alert]
+
+    @user.reload
+    assert_equal "pending_invitation", @user.status
+    assert_nil cookies[:session_id] # Should not be signed in
+  end
+
+  test "should reject invitation with missing password" do
+    put invitation_path(@token), params: {
+      password: "",
+      password_confirmation: ""
+    }
+
+    # When password validation fails, the controller should redirect back to the invitation form
+    assert_redirected_to invitation_path(@token)
+    assert_equal "Passwords did not match.", flash[:alert]
+
+    @user.reload
+    assert_equal "pending_invitation", @user.status
+    assert_nil cookies[:session_id] # Should not be signed in
+  end
+
+  test "should reject invitation with short password" do
+    put invitation_path(@token), params: {
+      password: "short",
+      password_confirmation: "short"
+    }
+
+    assert_redirected_to invitation_path(@token)
+    assert_equal "Passwords did not match.", flash[:alert]
+
+    @user.reload
+    assert_equal "pending_invitation", @user.status
+  end
+
+  test "should destroy existing sessions when accepting invitation" do
+    # Create an existing session for the user
+    existing_session = @user.sessions.create!
+
+    put invitation_path(@token), params: {
+      password: "newpassword123",
+      password_confirmation: "newpassword123"
+    }
+
+    assert_redirected_to root_path
+
+    @user.reload
+    assert_empty @user.sessions.where.not(id: @user.sessions.last) # Only new session should exist
+  end
+
+  test "should create new session after accepting invitation" do
+    put invitation_path(@token), params: {
+      password: "newpassword123",
+      password_confirmation: "newpassword123"
+    }
+
+    assert_redirected_to root_path
+    assert cookies[:session_id]
+
+    @user.reload
+    assert_equal 1, @user.sessions.count
+  end
+
+  test "should not allow invitation for disabled user" do
+    disabled_user = User.create!(
+      email_address: "disabled@example.com",
+      password: "password123",
+      status: :disabled
+    )
+    token = disabled_user.generate_token_for(:invitation_login)
+
+    get invitation_path(token)
+
+    assert_redirected_to signin_path
+    assert_equal "This invitation has already been used or is no longer valid.", flash[:alert]
+  end
+
+  test "should allow access without authentication" do
+    # This test ensures the allow_unauthenticated_access is working
+    get invitation_path(@token)
+    assert_response :success
+  end
+end