Structures

Path: Objects > TestServer > Structures

Structured objects represented as OPC UA Object nodes with child Variable nodes. These test browsing, hierarchical navigation, and nested object handling.

TestPoint

Path: Structures/TestPoint

A simple 3D point with X, Y, Z coordinates.

BrowsePath	DataType	Access	Initial Value
`TestPoint/X`	Double	RW	`1.0`
`TestPoint/Y`	Double	RW	`2.0`
`TestPoint/Z`	Double	RW	`3.0`

TestRange

Path: Structures/TestRange

A range definition with min, max, and current value.

BrowsePath	DataType	Access	Initial Value
`TestRange/Min`	Double	RW	`0.0`
`TestRange/Max`	Double	RW	`100.0`
`TestRange/Value`	Double	RW	`50.0`

TestPerson

Path: Structures/TestPerson

A person record with mixed data types.

BrowsePath	DataType	Access	Initial Value
`TestPerson/Name`	String	RW	`"John Doe"`
`TestPerson/Age`	UInt32	RW	`30`
`TestPerson/Active`	Boolean	RW	`true`

TestNested

Path: Structures/TestNested

A structure containing another structure (nested object). Tests hierarchical browsing.

TestNested
├── Label      (String)    = "origin"
├── Timestamp  (DateTime)  = startup time
└── Point      (Object)
    ├── X      (Double)    = 0.0
    ├── Y      (Double)    = 0.0
    └── Z      (Double)    = 0.0

BrowsePath	DataType	Access	Initial Value
`TestNested/Label`	String	RW	`"origin"`
`TestNested/Timestamp`	DateTime	RW	Server startup time
`TestNested/Point/X`	Double	RW	`0.0`
`TestNested/Point/Y`	Double	RW	`0.0`
`TestNested/Point/Z`	Double	RW	`0.0`

Testing notes:

Browse TestNested -- should find 2 variables (Label, Timestamp) and 1 object (Point)
Browse Point -- should find 3 variables (X, Y, Z)
The Point node uses HasComponent reference type

PointCollection (5 Objects)

Path: Structures/PointCollection

5 point objects with the same structure, useful for testing enumeration and batch operations.

Object	X	Y	Z
`Point_0`	0.0	0.0	0.0
`Point_1`	10.0	20.0	30.0
`Point_2`	20.0	40.0	60.0
`Point_3`	30.0	60.0	90.0
`Point_4`	40.0	80.0	120.0

Each point is an Object node with 3 Double variables (X, Y, Z).

Testing notes:

Browse PointCollection -- should find 5 objects
All objects have the same structure (same child variable names and types)
Useful for testing: "browse all children, then read all variables of each child"

DeepNesting (10 Levels)

Path: Structures/DeepNesting

A chain of 10 nested objects, each containing the next one. Tests recursive browsing and depth limits.

DeepNesting
└── Level_1         (Depth=1, Name="Level 1")
    └── Level_2     (Depth=2, Name="Level 2")
        └── Level_3 (Depth=3, Name="Level 3")
            └── ...
                └── Level_10 (Depth=10, Name="Level 10")

Each level has:

Depth (UInt32) -- the nesting level (1-10)
Name (String) -- "Level N"

Testing notes:

Total nodes in the chain: 10 objects + 20 variables = 30 nodes
To reach Level_10, you need to browse 10 levels deep from DeepNesting
Tests browse depth limits and recursive algorithms
Verify your client doesn't stack overflow or infinite-loop on deep hierarchies
The Organizes reference type is used between levels