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https://github.com/DioxusLabs/dioxus
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add fuzzing test to native core
This commit is contained in:
Evan Almloff
parent
f65b051102
commit
04bf6c3f91
1 changed files with 417 additions and 0 deletions
417
packages/native-core/tests/fuzzing.rs
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417
packages/native-core/tests/fuzzing.rs
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@ -0,0 +1,417 @@
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use dioxus::prelude::Props;
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use dioxus_core::*;
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use std::cell::Cell;
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fn random_ns() -> Option<&'static str> {
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let namespace = rand::random::<u8>() % 2;
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match namespace {
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0 => None,
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1 => Some(Box::leak(
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format!("ns{}", rand::random::<usize>()).into_boxed_str(),
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)),
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_ => unreachable!(),
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}
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}
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fn create_random_attribute(attr_idx: &mut usize) -> TemplateAttribute<'static> {
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match rand::random::<u8>() % 2 {
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0 => TemplateAttribute::Static {
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name: Box::leak(format!("attr{}", rand::random::<usize>()).into_boxed_str()),
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value: Box::leak(format!("value{}", rand::random::<usize>()).into_boxed_str()),
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namespace: random_ns(),
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},
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1 => TemplateAttribute::Dynamic {
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id: {
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let old_idx = *attr_idx;
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*attr_idx += 1;
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old_idx
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},
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},
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_ => unreachable!(),
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}
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}
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fn create_random_template_node(
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dynamic_node_types: &mut Vec<DynamicNodeType>,
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template_idx: &mut usize,
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attr_idx: &mut usize,
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depth: usize,
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) -> TemplateNode<'static> {
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match rand::random::<u8>() % 4 {
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0 => {
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let attrs = {
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let attrs: Vec<_> = (0..(rand::random::<usize>() % 10))
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.map(|_| create_random_attribute(attr_idx))
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.collect();
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Box::leak(attrs.into_boxed_slice())
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};
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TemplateNode::Element {
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tag: Box::leak(format!("tag{}", rand::random::<usize>()).into_boxed_str()),
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namespace: random_ns(),
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attrs,
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children: {
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if depth > 4 {
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&[]
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} else {
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let children: Vec<_> = (0..(rand::random::<usize>() % 3))
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.map(|_| {
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create_random_template_node(
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dynamic_node_types,
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template_idx,
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attr_idx,
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depth + 1,
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)
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})
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.collect();
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Box::leak(children.into_boxed_slice())
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}
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},
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}
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}
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1 => TemplateNode::Text {
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text: Box::leak(format!("{}", rand::random::<usize>()).into_boxed_str()),
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},
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2 => TemplateNode::DynamicText {
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id: {
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let old_idx = *template_idx;
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*template_idx += 1;
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dynamic_node_types.push(DynamicNodeType::Text);
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old_idx
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},
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},
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3 => TemplateNode::Dynamic {
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id: {
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let old_idx = *template_idx;
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*template_idx += 1;
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dynamic_node_types.push(DynamicNodeType::Other);
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old_idx
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},
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},
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_ => unreachable!(),
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}
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}
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fn generate_paths(
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node: &TemplateNode<'static>,
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current_path: &[u8],
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node_paths: &mut Vec<Vec<u8>>,
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attr_paths: &mut Vec<Vec<u8>>,
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) {
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match node {
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TemplateNode::Element {
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children, attrs, ..
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} => {
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for attr in *attrs {
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match attr {
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TemplateAttribute::Static { .. } => {}
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TemplateAttribute::Dynamic { .. } => {
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attr_paths.push(current_path.to_vec());
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}
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}
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}
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for (i, child) in children.iter().enumerate() {
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let mut current_path = current_path.to_vec();
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current_path.push(i as u8);
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generate_paths(child, ¤t_path, node_paths, attr_paths);
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}
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}
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TemplateNode::Text { .. } => {}
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TemplateNode::DynamicText { .. } => {
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node_paths.push(current_path.to_vec());
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}
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TemplateNode::Dynamic { .. } => {
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node_paths.push(current_path.to_vec());
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}
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}
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}
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enum DynamicNodeType {
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Text,
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Other,
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}
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fn create_random_template(name: &'static str) -> (Template<'static>, Vec<DynamicNodeType>) {
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let mut dynamic_node_type = Vec::new();
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let mut template_idx = 0;
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let mut attr_idx = 0;
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let roots = (0..(1 + rand::random::<usize>() % 5))
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.map(|_| {
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create_random_template_node(&mut dynamic_node_type, &mut template_idx, &mut attr_idx, 0)
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})
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.collect::<Vec<_>>();
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assert!(!roots.is_empty());
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let roots = Box::leak(roots.into_boxed_slice());
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let mut node_paths = Vec::new();
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let mut attr_paths = Vec::new();
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for (i, root) in roots.iter().enumerate() {
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generate_paths(root, &[i as u8], &mut node_paths, &mut attr_paths);
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}
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let node_paths = Box::leak(
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node_paths
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.into_iter()
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.map(|v| &*Box::leak(v.into_boxed_slice()))
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.collect::<Vec<_>>()
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.into_boxed_slice(),
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);
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let attr_paths = Box::leak(
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attr_paths
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.into_iter()
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.map(|v| &*Box::leak(v.into_boxed_slice()))
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.collect::<Vec<_>>()
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.into_boxed_slice(),
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);
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(
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Template {
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name,
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roots,
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node_paths,
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attr_paths,
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},
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dynamic_node_type,
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)
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}
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fn create_random_dynamic_node(cx: &ScopeState, depth: usize) -> DynamicNode {
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let range = if depth > 3 { 1 } else { 3 };
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match rand::random::<u8>() % range {
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0 => DynamicNode::Placeholder(Default::default()),
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1 => cx.make_node((0..(rand::random::<u8>() % 5)).map(|_| VNode {
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key: None,
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parent: Default::default(),
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template: Cell::new(Template {
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name: concat!(file!(), ":", line!(), ":", column!(), ":0"),
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roots: &[TemplateNode::Dynamic { id: 0 }],
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node_paths: &[&[0]],
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attr_paths: &[],
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}),
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root_ids: Default::default(),
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dynamic_nodes: cx.bump().alloc([cx.component(
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create_random_element,
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DepthProps { depth, root: false },
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"create_random_element",
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)]),
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dynamic_attrs: &[],
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})),
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2 => cx.component(
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create_random_element,
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DepthProps { depth, root: false },
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"create_random_element",
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),
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_ => unreachable!(),
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}
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}
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fn create_random_dynamic_attr(cx: &ScopeState) -> Attribute {
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let value = match rand::random::<u8>() % 6 {
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0 => AttributeValue::Text(Box::leak(
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format!("{}", rand::random::<usize>()).into_boxed_str(),
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)),
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1 => AttributeValue::Float(rand::random()),
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2 => AttributeValue::Int(rand::random()),
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3 => AttributeValue::Bool(rand::random()),
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4 => cx.any_value(rand::random::<usize>()),
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5 => AttributeValue::None,
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// Listener(RefCell<Option<ListenerCb<'a>>>),
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_ => unreachable!(),
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};
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Attribute {
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name: Box::leak(format!("attr{}", rand::random::<usize>()).into_boxed_str()),
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value,
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namespace: random_ns(),
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mounted_element: Default::default(),
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volatile: rand::random(),
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}
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}
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static mut TEMPLATE_COUNT: usize = 0;
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#[derive(PartialEq, Props)]
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struct DepthProps {
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depth: usize,
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root: bool,
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}
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fn create_random_element(cx: Scope<DepthProps>) -> Element {
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cx.needs_update();
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let range = if cx.props.root { 2 } else { 3 };
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let node = match rand::random::<usize>() % range {
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0 | 1 => {
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let (template, dynamic_node_types) = create_random_template(Box::leak(
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format!(
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"{}{}",
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concat!(file!(), ":", line!(), ":", column!(), ":"),
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{
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unsafe {
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let old = TEMPLATE_COUNT;
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TEMPLATE_COUNT += 1;
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old
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}
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}
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)
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.into_boxed_str(),
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));
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println!("{template:#?}");
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let node = VNode {
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key: None,
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parent: None,
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template: Cell::new(template),
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root_ids: Default::default(),
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dynamic_nodes: {
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let dynamic_nodes: Vec<_> = dynamic_node_types
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.iter()
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.map(|ty| match ty {
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DynamicNodeType::Text => DynamicNode::Text(VText {
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value: Box::leak(
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format!("{}", rand::random::<usize>()).into_boxed_str(),
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),
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id: Default::default(),
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}),
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DynamicNodeType::Other => {
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create_random_dynamic_node(cx, cx.props.depth + 1)
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}
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})
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.collect();
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cx.bump().alloc(dynamic_nodes)
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},
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dynamic_attrs: cx.bump().alloc(
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(0..template.attr_paths.len())
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.map(|_| create_random_dynamic_attr(cx))
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.collect::<Vec<_>>(),
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),
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};
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Some(node)
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}
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_ => None,
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};
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println!("{node:#?}");
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node
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}
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use dioxus::prelude::*;
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use dioxus_native_core::{
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node_ref::{AttributeMask, NodeView},
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real_dom::RealDom,
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state::{ParentDepState, State},
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NodeMask, SendAnyMap,
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};
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use dioxus_native_core_macro::{sorted_str_slice, State};
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use std::sync::{Arc, Mutex};
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use tokio::time::sleep;
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#[derive(Debug, Clone, PartialEq, Eq, Default)]
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pub struct BlablaState {}
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/// Font style are inherited by default if not specified otherwise by some of the supported attributes.
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impl ParentDepState for BlablaState {
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type Ctx = ();
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type DepState = (Self,);
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const NODE_MASK: NodeMask =
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NodeMask::new_with_attrs(AttributeMask::Static(&sorted_str_slice!(["blabla",])));
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fn reduce<'a>(
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&mut self,
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_node: NodeView,
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_parent: Option<(&'a Self,)>,
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_ctx: &Self::Ctx,
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) -> bool {
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false
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}
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}
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#[derive(Clone, State, Default, Debug)]
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pub struct NodeState {
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#[parent_dep_state(blabla)]
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blabla: BlablaState,
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}
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mod dioxus_elements {
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macro_rules! builder_constructors {
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(
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$(
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$(#[$attr:meta])*
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$name:ident {
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$(
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$(#[$attr_method:meta])*
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$fil:ident: $vil:ident,
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)*
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};
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)*
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) => {
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$(
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#[allow(non_camel_case_types)]
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$(#[$attr])*
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pub struct $name;
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impl $name {
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pub const TAG_NAME: &'static str = stringify!($name);
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pub const NAME_SPACE: Option<&'static str> = None;
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$(
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pub const $fil: (&'static str, Option<&'static str>, bool) = (stringify!($fil), None, false);
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)*
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}
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impl GlobalAttributes for $name {}
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)*
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}
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}
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pub trait GlobalAttributes {}
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pub trait SvgAttributes {}
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builder_constructors! {
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blabla {
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};
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}
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}
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// test for panics when creating random nodes and templates
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#[test]
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fn create() {
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for _ in 0..100 {
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let mut vdom = VirtualDom::new_with_props(
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create_random_element,
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DepthProps {
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depth: 0,
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root: true,
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},
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);
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let mutations = vdom.rebuild();
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let mut rdom: RealDom<NodeState> = RealDom::new();
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let (to_update, _diff) = rdom.apply_mutations(mutations);
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let ctx = SendAnyMap::new();
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rdom.update_state(to_update, ctx);
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}
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}
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// test for panics when diffing random nodes
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// This test will change the template every render which is not very realistic, but it helps stress the system
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#[test]
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fn diff() {
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for _ in 0..10 {
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let mut vdom = VirtualDom::new_with_props(
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create_random_element,
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DepthProps {
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depth: 0,
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root: true,
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},
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);
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let mutations = vdom.rebuild();
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let mut rdom: RealDom<NodeState> = RealDom::new();
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let (to_update, _diff) = rdom.apply_mutations(mutations);
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let ctx = SendAnyMap::new();
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rdom.update_state(to_update, ctx);
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for _ in 0..10 {
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let mutations = vdom.render_immediate();
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let (to_update, _diff) = rdom.apply_mutations(mutations);
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let ctx = SendAnyMap::new();
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rdom.update_state(to_update, ctx);
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}
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}
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}
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