Fix flaky tests

[nowsprinting]

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[Copilot]

Pull Request Overview

This PR fixes flaky tests by improving test stability and consistency. The changes address timing-related test failures and inconsistent initial values that could cause intermittent test failures.

Key changes:

• Introduces an explicit initial value for LastDragPosition to prevent reliance on default struct values
• Extracts magic number (10) into a named constant RandomTestRepeatCount for better maintainability
• Adjusts timing assertion threshold from 49ms to 17ms to reduce false failures

Reviewed Changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
SpyOnDragHandler.cs	Adds explicit initial value for LastDragPosition to prevent test flakiness from default value comparisons
UguiSwipeOperatorTest.cs	Refactors repeat count to constant and updates assertions to use explicit initial value
UguiScrollWheelOperatorTest.cs	Replaces hardcoded repeat count with named constant
UguiDragAndDropOperatorTest.cs	Adds repeat attribute and updates assertion to use explicit initial value
UguiDoubleClickOperatorTest.cs	Loosens timing assertion threshold to reduce flaky failures

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[github-actions]

Code Metrics Report

	master (33ba08e)	#264 (8376475)	+/-
Coverage	85.0%	85.0%	0.0%
Code to Test Ratio	1:1.3	1:1.3	+0.0
Test Execution Time	10m41s	13m19s	+2m38s

Details

  |                     | master (33ba08e) | #264 (8376475) |  +/-   |
  |---------------------|------------------|----------------|--------|
  | Coverage            |            85.0% |          85.0% |   0.0% |
  |   Files             |               67 |             67 |      0 |
  |   Lines             |             2258 |           2258 |      0 |
  |   Covered           |             1921 |           1921 |      0 |
+ | Code to Test Ratio  |            1:1.3 |          1:1.3 |   +0.0 |
  |   Code              |             4162 |           4162 |      0 |
+ |   Test              |             5723 |           5728 |     +5 |
- | Test Execution Time |           10m41s |         13m19s | +2m38s |

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Reported by octocov