Validation Tools

Tools for validating blocks and flowgraphs.

validate_block

Validate a single block’s configuration.

Parameters

Name	Type	Default	Description
block_name	str	-	Name of the block to validate

Returns

Type: bool

True if the block is valid.

Example

is_valid = validate_block(block_name="osmosdr_source_0")
# Returns: True

---

validate_flowgraph

Validate the entire flowgraph.

Checks all blocks and connections for errors.

Returns

Type: bool

True if the flowgraph is valid.

Example

is_valid = validate_flowgraph()
# Returns: True

Notes

• Validation checks parameter types, required connections, and compatibility
• Use get_all_errors() to see specific validation failures
• generate_code() does not require validation to pass

---

get_all_errors

Get all validation errors from the flowgraph.

Returns

Type: list[ErrorModel]

List of errors with block name, parameter, and message.

Example

errors = get_all_errors()
# Returns: [
#   ErrorModel(
#     block="audio_sink_0",
#     param="samp_rate",
#     message="Sample rate 50000 not supported by audio device"
#   ),
#   ...
# ]

# Empty list means no errors
errors = get_all_errors()
# Returns: []

Error Types

Common validation errors:

Error Type	Example
Missing connection	”Block has unconnected input port”
Type mismatch	”Cannot connect complex to float”
Invalid parameter	”Invalid sample rate value”
Missing dependency	”Block requires gr-osmosdr”