✅ FixedBouncingBehavior returns same value for same input metrics
✅ DirectionAwareBouncingBehavior respects gesture direction
SheetPhysics subclasses
  ✅ can create dynamic inheritance relationships
Default configuration of SheetPhysics
  ✅ dragStartDistanceMotionThreshold for different platforms
  ✅ does not allow over/under dragging
  ✅ does not apply any resistance if position is in bounds
  ✅ prevents position from going out of bounds
  ✅ creates no ballistic simulation if position is in bounds
  ✅ creates ballistic simulation which ends at the nearest edge
  ✅ findSettledPosition
SnapToNearestEdge
  ✅ snaps to nearest edge if velocity is small enough
  ✅ is aware of fling gesture direction
  ✅ is disabled if position is out of bounds
  ✅ Boundary conditions
SnapToNearest
  ✅ snaps to nearest edge if velocity is small enough
  ✅ is aware of fling gesture direction
  ✅ is disabled if position is out of bounds
  ✅ Boundary condition: a drag ends exactly at the top detent
  ✅ Boundary condition: flings up exactly at the top detent
  ✅ Boundary condition: flings down exactly at the top detent
  ✅ Boundary condition: a drag ends exactly at the middle detent
  ✅ Boundary condition: flings up exactly at the middle detent
  ✅ Boundary condition: flings down exactly at the middle detent
  ✅ Boundary condition: a drag ends exactly at the bottom detent
  ✅ Boundary condition: flings up exactly at the bottom detent
  ✅ Boundary condition: flings down exactly at the bottom detent
BouncingSheetPhysics
  ✅ progressively applies friction if position is out of bounds
  ✅ does not allow to go beyond bounceable bounds
  ✅ applies friction even if position is on boundary
  ✅ can apply a reasonable friction to extremely large offset
sortPositionsAndFindNearest
  ✅ with two positions
  ✅ with three positions
  ✅ with more than three positions

AnimatedSheetActivity
  ✅ should animate to the destination
  ✅ should absorb viewport changes
SettlingSheetActivity
  ✅ Create with velocity
  ✅ Create with duration
  ✅ Velocity should be set when the activity is initialized
  ✅ Progressively updates current position toward destination
  ✅ Should start an idle activity when it reaches destination
  ✅ Should absorb viewport changes
IdleSheetActivity
  ✅ should maintain previous position when keyboard appears
  ✅ should maintain previous position when content size changes, without animation if gap is small
  ✅ should maintain previous position when content size changes, with animation if gap is large

✅ Drag gesture should dispatch drag start/update/end notifications in sequence
✅ Sheet animation should dispatch metrics update notifications
✅ Over-darg gesture should dispatch both darg and overflow notifications

Ignore pointer test:
  ✅ pointer events on a sheet should be ignored if activity says to do so
  ✅ content in a sheet should receive pointer events if activity allows
  ✅ content obscured by a sheet should never receive pointer events
  ✅ content not obscured by a sheet should always receive pointer events

Swipe-to-dismiss action test
  ✅ modal should be dismissed if swipe gesture has enough speed
  ✅ modal should not be dismissed if swipe gesture has not enough speed
  ✅ modal should be dismissed if drag distance is enough
  ✅ modal should not be dismissed if drag distance is not enough
PopScope test
  ✅ PopScope.onPopInvoked should be called when tap on barrier
  ✅ PopScope.onPopInvoked should be called when swipe to dismiss
Transition animation status and animation curve consistency test
  ✅ Swipe-to-dismissed
  ✅ Swipe-to-dismiss canceled
Transition animation status and animation curve consistency test with Navigator 2.0
  ✅ Swipe-to-dismissed
  ✅ Swipe-to-dismiss canceled

✅ Attached controller emits correct pixel values when dragging
✅ Attached controller emits correct boundary values
✅ Inherited controller should be attached
✅ Works with DropdownButton without crashing
✅ Opening keyboard does not interrupt sheet animation
✅ Drag gestures should be ignored during a page transition
SheetKeyboardDismissible
  ✅ should dismiss the keyboard when dragging
  ✅ should dismiss the keyboard when scrolling

✅ Inherited controller should be attached
✅ Opening keyboard does not interrupt sheet animation
Press-and-hold gesture should stop momentum scrolling
  ✅ in a plain ListView
  ✅ in a PageView with multiple ListViews
SheetKeyboardDismissible
  ✅ should dismiss the keyboard when dragging
  ✅ should dismiss the keyboard when scrolling
Infinite ballistic scroll activity test
  ✅ top edge
  ✅ bottom edge

✅ Should call onTick callback when tick is manually advanced
✅ Should reset elapsed time when start is called
✅ Should not call onTick when ticker is stopped
✅ Should not call onTick when ticker is muted
✅ Should throw error if start is called while already active
✅ Should correctly reflect isActive state
✅ Should correctly reflect isTicking state
✅ dispose Should stop ticker and make it inactive
✅ tick Should not advance if ticker is disposed
✅ should call onTick repeatedly with custom duration until ticker is inactive
✅ toString Should include debugLabel if provided