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restructure tests #30

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96 changes: 1 addition & 95 deletions splashsurf_lib/tests/integration_tests/io.rs
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Original file line number Diff line number Diff line change
@@ -1,96 +1,2 @@
#[cfg(feature = "vtk_extras")]
pub mod vtk {
use splashsurf_lib::nalgebra::Vector3;
use splashsurf_lib::Real;

use std::fs::create_dir_all;
use std::path::Path;

use anyhow::{anyhow, Context};

use vtkio::model::{ByteOrder, DataSet, Version, Vtk};
use vtkio::IOBuffer;

pub fn particles_from_vtk<R: Real, P: AsRef<Path>>(
vtk_file: P,
) -> Result<Vec<Vector3<R>>, anyhow::Error> {
let sph_dataset = read_vtk(vtk_file)?;
particles_from_dataset(sph_dataset)
}

pub fn write_vtk<P: AsRef<Path>>(
data: impl Into<DataSet>,
filename: P,
title: &str,
) -> Result<(), anyhow::Error> {
let vtk_file = Vtk {
version: Version::new((4, 1)),
title: title.to_string(),
file_path: None,
byte_order: ByteOrder::BigEndian,
data: data.into(),
};

let filename = filename.as_ref();
if let Some(dir) = filename.parent() {
create_dir_all(dir).context("Failed to create parent directory of output file")?;
}
vtk_file
.export_ascii(filename)
.context("Error while writing VTK output to file")
}

pub fn read_vtk<P: AsRef<Path>>(filename: P) -> Result<DataSet, vtkio::Error> {
let filename = filename.as_ref();
Vtk::import_legacy_be(filename).map(|vtk| vtk.data)
}

pub fn particles_from_coords<RealOut: Real, RealIn: Real>(
coords: &Vec<RealIn>,
) -> Result<Vec<Vector3<RealOut>>, anyhow::Error> {
if coords.len() % 3 != 0 {
anyhow!("The number of values in the particle data point buffer is not divisible by 3");
}

let num_points = coords.len() / 3;
let mut positions = Vec::with_capacity(num_points);
for i in 0..num_points {
positions.push(Vector3::new(
RealOut::from_f64(coords[3 * i + 0].to_f64().unwrap()).unwrap(),
RealOut::from_f64(coords[3 * i + 1].to_f64().unwrap()).unwrap(),
RealOut::from_f64(coords[3 * i + 2].to_f64().unwrap()).unwrap(),
))
}

Ok(positions)
}

pub fn particles_from_dataset<R: Real>(
dataset: DataSet,
) -> Result<Vec<Vector3<R>>, anyhow::Error> {
if let DataSet::UnstructuredGrid { pieces, .. } = dataset {
if let Some(piece) = pieces.into_iter().next() {
let points = piece
.into_loaded_piece_data(None)
.context("Failed to load unstructured grid piece")?
.points;

match points {
IOBuffer::F64(coords) => particles_from_coords(&coords),
IOBuffer::F32(coords) => particles_from_coords(&coords),
_ => Err(anyhow!(
"Point coordinate IOBuffer does not contain f32 or f64 values"
)),
}
} else {
Err(anyhow!(
"Loaded dataset does not contain an unstructured grid piece"
))
}
} else {
Err(anyhow!(
"Loaded dataset does not contain an unstructured grid"
))
}
}
}
pub mod vtk;
91 changes: 91 additions & 0 deletions splashsurf_lib/tests/integration_tests/io/vtk.rs
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Original file line number Diff line number Diff line change
@@ -0,0 +1,91 @@
use splashsurf_lib::nalgebra::Vector3;
use splashsurf_lib::Real;

use std::fs::create_dir_all;
use std::path::Path;

use anyhow::{anyhow, Context};

use vtkio::model::{ByteOrder, DataSet, Version, Vtk};
use vtkio::IOBuffer;

pub fn particles_from_vtk<R: Real, P: AsRef<Path>>(
vtk_file: P,
) -> Result<Vec<Vector3<R>>, anyhow::Error> {
let sph_dataset = read_vtk(vtk_file)?;
particles_from_dataset(sph_dataset)
}

pub fn write_vtk<P: AsRef<Path>>(
data: impl Into<DataSet>,
filename: P,
title: &str,
) -> Result<(), anyhow::Error> {
let vtk_file = Vtk {
version: Version::new((4, 1)),
title: title.to_string(),
file_path: None,
byte_order: ByteOrder::BigEndian,
data: data.into(),
};

let filename = filename.as_ref();
if let Some(dir) = filename.parent() {
create_dir_all(dir).context("Failed to create parent directory of output file")?;
}
vtk_file
.export_ascii(filename)
.context("Error while writing VTK output to file")
}

pub fn read_vtk<P: AsRef<Path>>(filename: P) -> Result<DataSet, vtkio::Error> {
let filename = filename.as_ref();
Vtk::import_legacy_be(filename).map(|vtk| vtk.data)
}

pub fn particles_from_coords<RealOut: Real, RealIn: Real>(
coords: &Vec<RealIn>,
) -> Result<Vec<Vector3<RealOut>>, anyhow::Error> {
if coords.len() % 3 != 0 {
anyhow!("The number of values in the particle data point buffer is not divisible by 3");
}

let num_points = coords.len() / 3;
let mut positions = Vec::with_capacity(num_points);
for i in 0..num_points {
positions.push(Vector3::new(
RealOut::from_f64(coords[3 * i + 0].to_f64().unwrap()).unwrap(),
RealOut::from_f64(coords[3 * i + 1].to_f64().unwrap()).unwrap(),
RealOut::from_f64(coords[3 * i + 2].to_f64().unwrap()).unwrap(),
))
}

Ok(positions)
}

pub fn particles_from_dataset<R: Real>(dataset: DataSet) -> Result<Vec<Vector3<R>>, anyhow::Error> {
if let DataSet::UnstructuredGrid { pieces, .. } = dataset {
if let Some(piece) = pieces.into_iter().next() {
let points = piece
.into_loaded_piece_data(None)
.context("Failed to load unstructured grid piece")?
.points;

match points {
IOBuffer::F64(coords) => particles_from_coords(&coords),
IOBuffer::F32(coords) => particles_from_coords(&coords),
_ => Err(anyhow!(
"Point coordinate IOBuffer does not contain f32 or f64 values"
)),
}
} else {
Err(anyhow!(
"Loaded dataset does not contain an unstructured grid piece"
))
}
} else {
Err(anyhow!(
"Loaded dataset does not contain an unstructured grid"
))
}
}
2 changes: 1 addition & 1 deletion splashsurf_lib/tests/integration_tests/mod.rs
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Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
#[cfg(feature = "vtk_extras")]
pub mod io;

#[cfg(feature = "vtk_extras")]
pub mod test_full;
#[cfg(feature = "vtk_extras")]
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