Date picker integration tests

#382 in iced-rs/iced_aw — merged 2025-12-28

Updated DatePicker widget and added integration test coverage.

Widget Changes

src/widget/date_picker.rs

• Added operate() method to expose underlay button for testing

src/widget/overlay/date_picker.rs

• Added operate() method to expose all interactive elements (month/year text, navigation arrows, day numbers, action buttons) to the Simulator

Tests Added (using iced_test simulator)

Navigation

• Month navigation via arrow buttons (next/prev, wrapping)
• Year navigation via keyboard (Tab to focus, arrow keys)

User Actions

• Cancel button, Submit button
• Date selection workflows

cargo test --test date_picker_integration_tests