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use crate::{Data, Node, TensorData};
/// Configuration for the Trilu operation.
#[derive(Debug, Clone, PartialEq)]
pub struct TriluConfig {
/// Whether to return the upper triangular matrix.
pub upper: bool,
/// The diagonal offset.
pub diagonal: i64,
}
impl TriluConfig {
/// Creates a TriluConfig from the node attributes and inputs.
pub fn new(upper: bool, diagonal: i64) -> Self {
Self { upper, diagonal }
}
}
/// Creates a TriluConfig from the node attributes and inputs.
pub fn trilu_config(node: &Node) -> TriluConfig {
let mut upper = true;
let mut diagonal = 0;
for (key, value) in node.attrs.iter() {
if key.as_str() == "upper" {
upper = value.clone().into_i64() != 0
}
}
// The second input of the Trilu node is the diagonal value, coming from a constant node
if let Some(diagonal_arg) = node.inputs.get(1)
&& let Some(TensorData {
data: Data::Int64(diagonal_val),
..
}) = &diagonal_arg.value
{
diagonal = *diagonal_val;
}
TriluConfig::new(upper, diagonal)
}
#[cfg(test)]
mod tests {
use super::*;
use crate::ir::NodeType;
use crate::node::test_utils::NodeBuilder;
/// Helper function to create test nodes for Trilu tests
fn create_test_node(upper_attr: Option<i64>, diagonal_input: Option<i64>) -> Node {
let mut builder = NodeBuilder::new(NodeType::Trilu, "test_trilu")
.input_tensor_f32("X", 2, None) // Typically a matrix
.output_tensor_f32("Y", 2, None);
// Add diagonal input if provided
if let Some(diag) = diagonal_input {
builder = builder.input_scalar_tensor_i64("k", diag);
}
// Add upper attribute if provided
if let Some(upper) = upper_attr {
builder = builder.attr_int("upper", upper);
}
builder.build()
}
#[test]
fn test_trilu_config_default() {
// Test with no attributes or inputs - should use defaults (upper=true, diagonal=0)
let node = create_test_node(None, None);
let config = trilu_config(&node);
assert_eq!(
config,
TriluConfig {
upper: true,
diagonal: 0
}
);
}
#[test]
fn test_trilu_config_upper_true() {
// Test with upper=1 attribute
let node = create_test_node(Some(1), None);
let config = trilu_config(&node);
assert_eq!(
config,
TriluConfig {
upper: true,
diagonal: 0
}
);
}
#[test]
fn test_trilu_config_upper_false() {
// Test with upper=0 attribute (lower triangular)
let node = create_test_node(Some(0), None);
let config = trilu_config(&node);
assert_eq!(
config,
TriluConfig {
upper: false,
diagonal: 0
}
);
}
#[test]
fn test_trilu_config_with_diagonal() {
// Test with diagonal=2 input (offset 2 above main diagonal)
let node = create_test_node(None, Some(2));
let config = trilu_config(&node);
assert_eq!(
config,
TriluConfig {
upper: true,
diagonal: 2
}
);
}
#[test]
fn test_trilu_config_with_negative_diagonal() {
// Test with diagonal=-3 input (offset 3 below main diagonal)
let node = create_test_node(None, Some(-3));
let config = trilu_config(&node);
assert_eq!(
config,
TriluConfig {
upper: true,
diagonal: -3
}
);
}
#[test]
fn test_trilu_config_both_params() {
// Test with both upper attribute and diagonal input
let node = create_test_node(Some(0), Some(1));
let config = trilu_config(&node);
assert_eq!(
config,
TriluConfig {
upper: false,
diagonal: 1
}
);
}
#[test]
fn test_trilu_config_non_binary_upper() {
// Test with non-binary values for the upper attribute
// Any non-zero value should be treated as true
let node = create_test_node(Some(42), None);
let config = trilu_config(&node);
assert_eq!(
config,
TriluConfig {
upper: true,
diagonal: 0
}
);
}
#[test]
fn test_trilu_config_negative_non_binary_upper() {
// Test with negative values for the upper attribute
// Any non-zero value should be treated as true
let node = create_test_node(Some(-5), None);
let config = trilu_config(&node);
assert_eq!(
config,
TriluConfig {
upper: true,
diagonal: 0
}
);
}
}