test: add unit tests for IDrawTool

[wyu71]

Summary

Add 18 Google Test unit test cases for IDrawTool class in idrawtool.cpp, covering 5 methods:

• toolDoStart (4 cases): simulated event with no button, mouse left button, touch event, max touch points exceeded
• toolDoUpdate (4 cases): empty records, EDoNotthing, EDoQtCoversion, ENormal with no movement
• toolDoFinish (4 cases): empty records, EDoNotthing, EDoQtCoversion, ENormal
• getCursor (4 cases): all directions without mouse press, rotation/inrect/none directions, with mouse left press, different tool types
• dueTouchDoubleClickedStart (4 cases): simulated event, touch first call, touch double-click, mouse double-click

Build & Test Results

• Build: ✅ Compiled successfully with Qt6 / DTK6
• Tests: ✅ All 18 IDrawTool tests passed (0 failures)

Changes

• tests/testItems/test_idrawtool.cpp: New test file with 18 GTest cases
• tests/CMakeLists.txt: Add DEEPINDRAW_TEST_IDRAWTOOL_ITEM CMake option

Summary by Sourcery

Add unit test coverage for IDrawTool’s input-event and cursor behavior.

Build:

• Add a CMake option to enable the IDrawTool test suite.

Tests:

• Add Google Test coverage for IDrawTool event lifecycle, cursor handling, and touch or mouse double-click behavior.

[sourcery-ai]

Reviewer's Guide

Adds 18 Google Test cases covering IDrawTool start, update, finish, cursor, and double-click paths, plus a CMake option and compile definition to enable the suite.

File-Level Changes

Change	Details	Files
Add broad behavioral coverage for IDrawTool event lifecycle and cursor handling.	Exercise start-event handling for simulated, mouse, touch, and touch-limit cases. Verify update behavior for empty, ignored, Qt-conversion, and normal records. Verify finish behavior, event acceptance, and record cleanup across lifecycle states. Check cursor results across handle directions, press states, and tool types. Cover touch and mouse double-click detection, including timer state and repeated touch position.	tests/testItems/test_idrawtool.cpp
Make the new IDrawTool test suite conditionally configurable through CMake.	Add an enabled-by-default build option for the IDrawTool tests. Define the test-specific preprocessor macro when the option is enabled.	tests/CMakeLists.txt

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[deepin-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: lzwind, wyu71

The full list of commands accepted by this bot can be found here.

Details

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• debian/deepin/OWNERS

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