944 lines
29 KiB
Rust
944 lines
29 KiB
Rust
use proptest::prelude::*;
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use std::convert::TryFrom;
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use wiggle_runtime::{
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GuestArray, GuestError, GuestErrorType, GuestPtr, GuestPtrMut, GuestRef, GuestRefMut,
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GuestString,
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};
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use wiggle_test::{HostMemory, MemArea};
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wiggle_generate::from_witx!({
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witx: ["tests/test.witx"],
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ctx: WasiCtx,
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});
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pub struct WasiCtx {
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guest_errors: Vec<GuestError>,
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}
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impl WasiCtx {
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pub fn new() -> Self {
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Self {
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guest_errors: vec![],
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}
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}
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}
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impl foo::Foo for WasiCtx {
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fn bar(&mut self, an_int: u32, an_float: f32) -> Result<(), types::Errno> {
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println!("BAR: {} {}", an_int, an_float);
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Ok(())
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}
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fn baz(
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&mut self,
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input1: types::Excuse,
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input2_ptr: GuestPtrMut<types::Excuse>,
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input3_ptr: GuestPtr<types::Excuse>,
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input4_ptr_ptr: GuestPtrMut<GuestPtr<types::Excuse>>,
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) -> Result<(), types::Errno> {
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println!("BAZ input1 {:?}", input1);
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// Read enum value from mutable:
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let mut input2_ref: GuestRefMut<types::Excuse> = input2_ptr.as_ref_mut().map_err(|e| {
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eprintln!("input2_ptr error: {}", e);
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types::Errno::InvalidArg
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})?;
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let input2: types::Excuse = *input2_ref;
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println!("input2 {:?}", input2);
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// Read enum value from immutable ptr:
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let input3 = *input3_ptr.as_ref().map_err(|e| {
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eprintln!("input3_ptr error: {}", e);
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types::Errno::InvalidArg
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})?;
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println!("input3 {:?}", input3);
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// Write enum to mutable ptr:
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*input2_ref = input3;
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println!("wrote to input2_ref {:?}", input3);
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// Read ptr value from mutable ptr:
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let input4_ptr: GuestPtr<types::Excuse> = wiggle_runtime::GuestTypeClone::read_from_guest(
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&input4_ptr_ptr.as_immut(),
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)
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.map_err(|e| {
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eprintln!("input4_ptr_ptr error: {}", e);
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types::Errno::InvalidArg
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})?;
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// Read enum value from that ptr:
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let input4: types::Excuse = *input4_ptr.as_ref().map_err(|e| {
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eprintln!("input4_ptr error: {}", e);
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types::Errno::InvalidArg
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})?;
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println!("input4 {:?}", input4);
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// Write ptr value to mutable ptr:
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input4_ptr_ptr.write_ptr_to_guest(&input2_ptr.as_immut());
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Ok(())
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}
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fn bat(&mut self, an_int: u32) -> Result<f32, types::Errno> {
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Ok((an_int as f32) * 2.0)
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}
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fn sum_of_pair(&mut self, an_pair: &types::PairInts) -> Result<i64, types::Errno> {
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Ok(an_pair.first as i64 + an_pair.second as i64)
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}
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fn sum_of_pair_of_ptrs(&mut self, an_pair: &types::PairIntPtrs) -> Result<i64, types::Errno> {
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let first = *an_pair
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.first
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.as_ref()
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.expect("dereferencing GuestPtr should succeed");
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let second = *an_pair
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.second
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.as_ref()
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.expect("dereferncing GuestPtr should succeed");
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Ok(first as i64 + second as i64)
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}
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fn reduce_excuses(
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&mut self,
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excuses: &types::ConstExcuseArray,
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) -> Result<types::Excuse, types::Errno> {
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let last = wiggle_runtime::GuestTypeClone::read_from_guest(
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&excuses
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.iter()
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.last()
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.expect("input array is non-empty")
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.expect("valid ptr to ptr"),
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)
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.expect("valid ptr to some Excuse value");
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Ok(*last.as_ref().expect("dereferencing ptr should succeed"))
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}
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fn populate_excuses(&mut self, excuses: &types::ExcuseArray) -> Result<(), types::Errno> {
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for excuse in excuses.iter() {
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let ptr_to_ptr =
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wiggle_runtime::GuestTypeClone::read_from_guest(&excuse.expect("valid ptr to ptr"))
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.expect("valid ptr to some Excuse value");
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let mut ptr = ptr_to_ptr
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.as_ref_mut()
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.expect("dereferencing mut ptr should succeed");
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*ptr = types::Excuse::Sleeping;
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}
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Ok(())
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}
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fn configure_car(
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&mut self,
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old_config: types::CarConfig,
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other_config_ptr: GuestPtr<types::CarConfig>,
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) -> Result<types::CarConfig, types::Errno> {
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let other_config = *other_config_ptr.as_ref().map_err(|e| {
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eprintln!("old_config_ptr error: {}", e);
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types::Errno::InvalidArg
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})?;
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Ok(old_config ^ other_config)
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}
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fn hello_string(&mut self, a_string: &GuestString<'_>) -> Result<u32, types::Errno> {
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let as_ref = a_string.as_ref().expect("deref ptr should succeed");
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let as_str = as_ref.as_str().expect("valid UTF-8 string");
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println!("a_string='{}'", as_str);
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Ok(as_str.len() as u32)
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}
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fn cookie_cutter(&mut self, init_cookie: types::Cookie) -> Result<types::Bool, types::Errno> {
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let res = if init_cookie == types::Cookie::START {
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types::Bool::True
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} else {
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types::Bool::False
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};
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Ok(res)
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}
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}
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// Errno is used as a first return value in the functions above, therefore
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// it must implement GuestErrorType with type Context = WasiCtx.
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// The context type should let you do logging or debugging or whatever you need
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// with these errors. We just push them to vecs.
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impl GuestErrorType for types::Errno {
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type Context = WasiCtx;
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fn success() -> types::Errno {
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types::Errno::Ok
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}
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fn from_error(e: GuestError, ctx: &mut WasiCtx) -> types::Errno {
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eprintln!("GUEST ERROR: {:?}", e);
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ctx.guest_errors.push(e);
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types::Errno::InvalidArg
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}
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}
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#[derive(Debug)]
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struct BatExercise {
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pub input: u32,
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pub return_loc: MemArea,
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}
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impl BatExercise {
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pub fn test(&self) {
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let mut ctx = WasiCtx::new();
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let mut host_memory = HostMemory::new();
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let mut guest_memory = host_memory.guest_memory();
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let bat_err = foo::bat(
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&mut ctx,
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&mut guest_memory,
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self.input as i32,
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self.return_loc.ptr as i32,
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);
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let return_val: GuestRef<f32> = guest_memory
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.ptr(self.return_loc.ptr)
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.expect("return loc ptr")
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.as_ref()
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.expect("return val ref");
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assert_eq!(bat_err, types::Errno::Ok.into(), "bat errno");
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assert_eq!(*return_val, (self.input as f32) * 2.0, "bat return val");
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}
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pub fn strat() -> BoxedStrategy<Self> {
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(prop::num::u32::ANY, HostMemory::mem_area_strat(4))
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.prop_map(|(input, return_loc)| BatExercise { input, return_loc })
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.boxed()
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}
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}
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proptest! {
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#[test]
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fn bat(e in BatExercise::strat()) {
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e.test()
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}
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}
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fn excuse_strat() -> impl Strategy<Value = types::Excuse> {
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prop_oneof![
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Just(types::Excuse::DogAte),
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Just(types::Excuse::Traffic),
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Just(types::Excuse::Sleeping),
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]
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.boxed()
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}
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#[derive(Debug)]
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struct BazExercise {
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pub input1: types::Excuse,
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pub input2: types::Excuse,
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pub input2_loc: MemArea,
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pub input3: types::Excuse,
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pub input3_loc: MemArea,
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pub input4: types::Excuse,
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pub input4_loc: MemArea,
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pub input4_ptr_loc: MemArea,
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}
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impl BazExercise {
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pub fn strat() -> BoxedStrategy<Self> {
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(
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excuse_strat(),
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excuse_strat(),
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HostMemory::mem_area_strat(4),
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excuse_strat(),
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HostMemory::mem_area_strat(4),
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excuse_strat(),
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HostMemory::mem_area_strat(4),
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HostMemory::mem_area_strat(4),
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)
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.prop_map(
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|(
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input1,
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input2,
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input2_loc,
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input3,
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input3_loc,
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input4,
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input4_loc,
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input4_ptr_loc,
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)| BazExercise {
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input1,
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input2,
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input2_loc,
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input3,
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input3_loc,
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input4,
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input4_loc,
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input4_ptr_loc,
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},
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)
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.prop_filter("non-overlapping pointers", |e| {
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MemArea::non_overlapping_set(&[
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&e.input2_loc,
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&e.input3_loc,
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&e.input4_loc,
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&e.input4_ptr_loc,
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])
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})
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.boxed()
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}
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pub fn test(&self) {
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let mut ctx = WasiCtx::new();
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let mut host_memory = HostMemory::new();
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let mut guest_memory = host_memory.guest_memory();
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*guest_memory
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.ptr_mut(self.input2_loc.ptr)
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.expect("input2 ptr")
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.as_ref_mut()
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.expect("input2 ref_mut") = self.input2;
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*guest_memory
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.ptr_mut(self.input3_loc.ptr)
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.expect("input3 ptr")
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.as_ref_mut()
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.expect("input3 ref_mut") = self.input3;
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*guest_memory
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.ptr_mut(self.input4_loc.ptr)
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.expect("input4 ptr")
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.as_ref_mut()
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.expect("input4 ref_mut") = self.input4;
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*guest_memory
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.ptr_mut(self.input4_ptr_loc.ptr)
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.expect("input4 ptr ptr")
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.as_ref_mut()
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.expect("input4 ptr ref_mut") = self.input4_loc.ptr;
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let baz_err = foo::baz(
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&mut ctx,
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&mut guest_memory,
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self.input1.into(),
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self.input2_loc.ptr as i32,
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self.input3_loc.ptr as i32,
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self.input4_ptr_loc.ptr as i32,
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);
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assert_eq!(baz_err, types::Errno::Ok.into(), "baz errno");
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// Implementation of baz writes input3 to the input2_loc:
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let written_to_input2_loc: i32 = *guest_memory
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.ptr(self.input2_loc.ptr)
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.expect("input2 ptr")
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.as_ref()
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.expect("input2 ref");
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assert_eq!(
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written_to_input2_loc,
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self.input3.into(),
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"baz written to input2"
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);
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// Implementation of baz writes input2_loc to input4_ptr_loc:
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let written_to_input4_ptr: u32 = *guest_memory
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.ptr(self.input4_ptr_loc.ptr)
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.expect("input4_ptr_loc ptr")
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.as_ref()
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.expect("input4_ptr_loc ref");
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assert_eq!(
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written_to_input4_ptr, self.input2_loc.ptr,
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"baz written to input4_ptr"
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);
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}
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}
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proptest! {
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#[test]
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fn baz(e in BazExercise::strat()) {
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e.test();
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}
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}
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#[derive(Debug)]
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struct SumOfPairExercise {
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pub input: types::PairInts,
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pub input_loc: MemArea,
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pub return_loc: MemArea,
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}
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impl SumOfPairExercise {
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pub fn strat() -> BoxedStrategy<Self> {
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(
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prop::num::i32::ANY,
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prop::num::i32::ANY,
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HostMemory::mem_area_strat(8),
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HostMemory::mem_area_strat(8),
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)
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.prop_map(|(first, second, input_loc, return_loc)| SumOfPairExercise {
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input: types::PairInts { first, second },
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input_loc,
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return_loc,
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})
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.prop_filter("non-overlapping pointers", |e| {
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MemArea::non_overlapping_set(&[&e.input_loc, &e.return_loc])
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})
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.boxed()
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}
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pub fn test(&self) {
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let mut ctx = WasiCtx::new();
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let mut host_memory = HostMemory::new();
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let mut guest_memory = host_memory.guest_memory();
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*guest_memory
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.ptr_mut(self.input_loc.ptr)
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.expect("input ptr")
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.as_ref_mut()
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.expect("input ref_mut") = self.input.first;
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*guest_memory
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.ptr_mut(self.input_loc.ptr + 4)
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.expect("input ptr")
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.as_ref_mut()
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.expect("input ref_mut") = self.input.second;
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let sum_err = foo::sum_of_pair(
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&mut ctx,
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&mut guest_memory,
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self.input_loc.ptr as i32,
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self.return_loc.ptr as i32,
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);
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assert_eq!(sum_err, types::Errno::Ok.into(), "sum errno");
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let return_val: i64 = *guest_memory
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.ptr(self.return_loc.ptr)
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.expect("return ptr")
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.as_ref()
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.expect("return ref");
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assert_eq!(
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return_val,
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self.input.first as i64 + self.input.second as i64,
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"sum return value"
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);
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}
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}
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proptest! {
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#[test]
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fn sum_of_pair(e in SumOfPairExercise::strat()) {
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e.test();
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}
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}
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|
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#[derive(Debug)]
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struct SumPairPtrsExercise {
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input_first: i32,
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input_second: i32,
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input_first_loc: MemArea,
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input_second_loc: MemArea,
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input_struct_loc: MemArea,
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return_loc: MemArea,
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}
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|
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impl SumPairPtrsExercise {
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pub fn strat() -> BoxedStrategy<Self> {
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(
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prop::num::i32::ANY,
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prop::num::i32::ANY,
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HostMemory::mem_area_strat(4),
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HostMemory::mem_area_strat(4),
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HostMemory::mem_area_strat(8),
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HostMemory::mem_area_strat(8),
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)
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.prop_map(
|
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|(
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input_first,
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input_second,
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input_first_loc,
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input_second_loc,
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input_struct_loc,
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return_loc,
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)| SumPairPtrsExercise {
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input_first,
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input_second,
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input_first_loc,
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input_second_loc,
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input_struct_loc,
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return_loc,
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},
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)
|
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.prop_filter("non-overlapping pointers", |e| {
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MemArea::non_overlapping_set(&[
|
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&e.input_first_loc,
|
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&e.input_second_loc,
|
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&e.input_struct_loc,
|
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&e.return_loc,
|
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])
|
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})
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.boxed()
|
|
}
|
|
pub fn test(&self) {
|
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let mut ctx = WasiCtx::new();
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let mut host_memory = HostMemory::new();
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let mut guest_memory = host_memory.guest_memory();
|
|
|
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*guest_memory
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.ptr_mut(self.input_first_loc.ptr)
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.expect("input_first ptr")
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.as_ref_mut()
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.expect("input_first ref") = self.input_first;
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*guest_memory
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.ptr_mut(self.input_second_loc.ptr)
|
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.expect("input_second ptr")
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.as_ref_mut()
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.expect("input_second ref") = self.input_second;
|
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|
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*guest_memory
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.ptr_mut(self.input_struct_loc.ptr)
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.expect("input_struct ptr")
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.as_ref_mut()
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.expect("input_struct ref") = self.input_first_loc.ptr;
|
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*guest_memory
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.ptr_mut(self.input_struct_loc.ptr + 4)
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.expect("input_struct ptr")
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.as_ref_mut()
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.expect("input_struct ref") = self.input_second_loc.ptr;
|
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|
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let res = foo::sum_of_pair_of_ptrs(
|
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&mut ctx,
|
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&mut guest_memory,
|
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self.input_struct_loc.ptr as i32,
|
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self.return_loc.ptr as i32,
|
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);
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|
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assert_eq!(res, types::Errno::Ok.into(), "sum of pair of ptrs errno");
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|
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let doubled: i64 = *guest_memory
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.ptr(self.return_loc.ptr)
|
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.expect("return ptr")
|
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.as_ref()
|
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.expect("return ref");
|
|
|
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assert_eq!(
|
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doubled,
|
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(self.input_first as i64) + (self.input_second as i64),
|
|
"sum of pair of ptrs return val"
|
|
);
|
|
}
|
|
}
|
|
proptest! {
|
|
#[test]
|
|
fn sum_of_pair_of_ptrs(e in SumPairPtrsExercise::strat()) {
|
|
e.test()
|
|
}
|
|
}
|
|
|
|
#[derive(Debug)]
|
|
struct ReduceExcusesExcercise {
|
|
excuse_values: Vec<types::Excuse>,
|
|
excuse_ptr_locs: Vec<MemArea>,
|
|
array_ptr_loc: MemArea,
|
|
array_len_loc: MemArea,
|
|
return_ptr_loc: MemArea,
|
|
}
|
|
|
|
impl ReduceExcusesExcercise {
|
|
pub fn strat() -> BoxedStrategy<Self> {
|
|
(1..256u32)
|
|
.prop_flat_map(|len| {
|
|
let len_usize = len as usize;
|
|
(
|
|
proptest::collection::vec(excuse_strat(), len_usize..=len_usize),
|
|
proptest::collection::vec(HostMemory::mem_area_strat(4), len_usize..=len_usize),
|
|
HostMemory::mem_area_strat(4 * len),
|
|
HostMemory::mem_area_strat(4),
|
|
HostMemory::mem_area_strat(4),
|
|
)
|
|
})
|
|
.prop_map(
|
|
|(excuse_values, excuse_ptr_locs, array_ptr_loc, array_len_loc, return_ptr_loc)| {
|
|
Self {
|
|
excuse_values,
|
|
excuse_ptr_locs,
|
|
array_ptr_loc,
|
|
array_len_loc,
|
|
return_ptr_loc,
|
|
}
|
|
},
|
|
)
|
|
.prop_filter("non-overlapping pointers", |e| {
|
|
let mut all = vec![&e.array_ptr_loc, &e.array_len_loc, &e.return_ptr_loc];
|
|
all.extend(e.excuse_ptr_locs.iter());
|
|
MemArea::non_overlapping_set(&all)
|
|
})
|
|
.boxed()
|
|
}
|
|
|
|
pub fn test(&self) {
|
|
let mut ctx = WasiCtx::new();
|
|
let mut host_memory = HostMemory::new();
|
|
let mut guest_memory = host_memory.guest_memory();
|
|
|
|
// Populate memory with pointers to generated Excuse values
|
|
for (&excuse, ptr) in self.excuse_values.iter().zip(self.excuse_ptr_locs.iter()) {
|
|
*guest_memory
|
|
.ptr_mut(ptr.ptr)
|
|
.expect("ptr mut to Excuse value")
|
|
.as_ref_mut()
|
|
.expect("deref ptr mut to Excuse value") = excuse;
|
|
}
|
|
|
|
// Populate array length info
|
|
*guest_memory
|
|
.ptr_mut(self.array_len_loc.ptr)
|
|
.expect("ptr to array len")
|
|
.as_ref_mut()
|
|
.expect("deref ptr mut to array len") = self.excuse_ptr_locs.len() as u32;
|
|
|
|
// Populate the array with pointers to generated Excuse values
|
|
{
|
|
let mut next: GuestPtrMut<'_, GuestPtr<types::Excuse>> = guest_memory
|
|
.ptr_mut(self.array_ptr_loc.ptr)
|
|
.expect("ptr to array mut");
|
|
for ptr in &self.excuse_ptr_locs {
|
|
next.write_ptr_to_guest(
|
|
&guest_memory
|
|
.ptr::<types::Excuse>(ptr.ptr)
|
|
.expect("ptr to Excuse value"),
|
|
);
|
|
next = next.elem(1).expect("increment ptr by 1");
|
|
}
|
|
}
|
|
|
|
let res = foo::reduce_excuses(
|
|
&mut ctx,
|
|
&mut guest_memory,
|
|
self.array_ptr_loc.ptr as i32,
|
|
self.array_len_loc.ptr as i32,
|
|
self.return_ptr_loc.ptr as i32,
|
|
);
|
|
|
|
assert_eq!(res, types::Errno::Ok.into(), "reduce excuses errno");
|
|
|
|
let expected = *self
|
|
.excuse_values
|
|
.last()
|
|
.expect("generated vec of excuses should be non-empty");
|
|
let given: types::Excuse = *guest_memory
|
|
.ptr(self.return_ptr_loc.ptr)
|
|
.expect("ptr to returned value")
|
|
.as_ref()
|
|
.expect("deref ptr to returned value");
|
|
assert_eq!(expected, given, "reduce excuses return val");
|
|
}
|
|
}
|
|
proptest! {
|
|
#[test]
|
|
fn reduce_excuses(e in ReduceExcusesExcercise::strat()) {
|
|
e.test()
|
|
}
|
|
}
|
|
|
|
#[derive(Debug)]
|
|
struct PopulateExcusesExcercise {
|
|
array_ptr_loc: MemArea,
|
|
array_len_loc: MemArea,
|
|
elements: Vec<MemArea>,
|
|
}
|
|
|
|
impl PopulateExcusesExcercise {
|
|
pub fn strat() -> BoxedStrategy<Self> {
|
|
(1..256u32)
|
|
.prop_flat_map(|len| {
|
|
let len_usize = len as usize;
|
|
(
|
|
HostMemory::mem_area_strat(4 * len),
|
|
HostMemory::mem_area_strat(4),
|
|
proptest::collection::vec(HostMemory::mem_area_strat(4), len_usize..=len_usize),
|
|
)
|
|
})
|
|
.prop_map(|(array_ptr_loc, array_len_loc, elements)| Self {
|
|
array_ptr_loc,
|
|
array_len_loc,
|
|
elements,
|
|
})
|
|
.prop_filter("non-overlapping pointers", |e| {
|
|
let mut all = vec![&e.array_ptr_loc, &e.array_len_loc];
|
|
all.extend(e.elements.iter());
|
|
MemArea::non_overlapping_set(&all)
|
|
})
|
|
.boxed()
|
|
}
|
|
|
|
pub fn test(&self) {
|
|
let mut ctx = WasiCtx::new();
|
|
let mut host_memory = HostMemory::new();
|
|
let mut guest_memory = host_memory.guest_memory();
|
|
|
|
// Populate array length info
|
|
*guest_memory
|
|
.ptr_mut(self.array_len_loc.ptr)
|
|
.expect("ptr mut to array len")
|
|
.as_ref_mut()
|
|
.expect("deref ptr mut to array len") = self.elements.len() as u32;
|
|
|
|
// Populate array with valid pointers to Excuse type in memory
|
|
{
|
|
let mut next: GuestPtrMut<'_, GuestPtrMut<types::Excuse>> = guest_memory
|
|
.ptr_mut(self.array_ptr_loc.ptr)
|
|
.expect("ptr mut to the first element of array");
|
|
for ptr in &self.elements {
|
|
next.write_ptr_to_guest(
|
|
&guest_memory
|
|
.ptr_mut::<types::Excuse>(ptr.ptr)
|
|
.expect("ptr mut to Excuse value"),
|
|
);
|
|
next = next.elem(1).expect("increment ptr by 1");
|
|
}
|
|
}
|
|
|
|
let res = foo::populate_excuses(
|
|
&mut ctx,
|
|
&mut guest_memory,
|
|
self.array_ptr_loc.ptr as i32,
|
|
self.array_len_loc.ptr as i32,
|
|
);
|
|
assert_eq!(res, types::Errno::Ok.into(), "populate excuses errno");
|
|
|
|
let arr: GuestArray<'_, GuestPtr<'_, types::Excuse>> = guest_memory
|
|
.ptr(self.array_ptr_loc.ptr)
|
|
.expect("ptr to the first element of array")
|
|
.array(self.elements.len() as u32)
|
|
.expect("as array");
|
|
for el in arr.iter() {
|
|
let ptr_to_ptr =
|
|
wiggle_runtime::GuestTypeClone::read_from_guest(&el.expect("valid ptr to ptr"))
|
|
.expect("valid ptr to some Excuse value");
|
|
assert_eq!(
|
|
*ptr_to_ptr
|
|
.as_ref()
|
|
.expect("dereferencing ptr to some Excuse value"),
|
|
types::Excuse::Sleeping,
|
|
"element should equal Excuse::Sleeping"
|
|
);
|
|
}
|
|
}
|
|
}
|
|
proptest! {
|
|
#[test]
|
|
fn populate_excuses(e in PopulateExcusesExcercise::strat()) {
|
|
e.test()
|
|
}
|
|
}
|
|
|
|
fn car_config_strat() -> impl Strategy<Value = types::CarConfig> {
|
|
(1u8..=types::CarConfig::ALL_FLAGS.into())
|
|
.prop_map(|v| {
|
|
types::CarConfig::try_from(v).expect("invalid value for types::CarConfig flag")
|
|
})
|
|
.boxed()
|
|
}
|
|
|
|
#[derive(Debug)]
|
|
struct ConfigureCarExercise {
|
|
old_config: types::CarConfig,
|
|
other_config: types::CarConfig,
|
|
other_config_by_ptr: MemArea,
|
|
return_ptr_loc: MemArea,
|
|
}
|
|
|
|
impl ConfigureCarExercise {
|
|
pub fn strat() -> BoxedStrategy<Self> {
|
|
(
|
|
car_config_strat(),
|
|
car_config_strat(),
|
|
HostMemory::mem_area_strat(4),
|
|
HostMemory::mem_area_strat(4),
|
|
)
|
|
.prop_map(
|
|
|(old_config, other_config, other_config_by_ptr, return_ptr_loc)| Self {
|
|
old_config,
|
|
other_config,
|
|
other_config_by_ptr,
|
|
return_ptr_loc,
|
|
},
|
|
)
|
|
.prop_filter("non-overlapping ptrs", |e| {
|
|
MemArea::non_overlapping_set(&[&e.other_config_by_ptr, &e.return_ptr_loc])
|
|
})
|
|
.boxed()
|
|
}
|
|
|
|
pub fn test(&self) {
|
|
let mut ctx = WasiCtx::new();
|
|
let mut host_memory = HostMemory::new();
|
|
let mut guest_memory = host_memory.guest_memory();
|
|
|
|
// Populate input ptr
|
|
*guest_memory
|
|
.ptr_mut(self.other_config_by_ptr.ptr)
|
|
.expect("ptr mut to CarConfig")
|
|
.as_ref_mut()
|
|
.expect("deref ptr mut to CarConfig") = self.other_config;
|
|
|
|
let res = foo::configure_car(
|
|
&mut ctx,
|
|
&mut guest_memory,
|
|
self.old_config.into(),
|
|
self.other_config_by_ptr.ptr as i32,
|
|
self.return_ptr_loc.ptr as i32,
|
|
);
|
|
assert_eq!(res, types::Errno::Ok.into(), "configure car errno");
|
|
|
|
let res_config = *guest_memory
|
|
.ptr::<types::CarConfig>(self.return_ptr_loc.ptr)
|
|
.expect("ptr to returned CarConfig")
|
|
.as_ref()
|
|
.expect("deref to CarConfig value");
|
|
|
|
assert_eq!(
|
|
self.old_config ^ self.other_config,
|
|
res_config,
|
|
"returned CarConfig should be an XOR of inputs"
|
|
);
|
|
}
|
|
}
|
|
proptest! {
|
|
#[test]
|
|
fn configure_car(e in ConfigureCarExercise::strat()) {
|
|
e.test()
|
|
}
|
|
}
|
|
|
|
fn test_string_strategy() -> impl Strategy<Value = String> {
|
|
"\\p{Greek}{1,256}"
|
|
}
|
|
|
|
#[derive(Debug)]
|
|
struct HelloStringExercise {
|
|
test_word: String,
|
|
string_ptr_loc: MemArea,
|
|
string_len_loc: MemArea,
|
|
return_ptr_loc: MemArea,
|
|
}
|
|
|
|
impl HelloStringExercise {
|
|
pub fn strat() -> BoxedStrategy<Self> {
|
|
(test_string_strategy(),)
|
|
.prop_flat_map(|(test_word,)| {
|
|
(
|
|
Just(test_word.clone()),
|
|
HostMemory::mem_area_strat(test_word.len() as u32),
|
|
HostMemory::mem_area_strat(4),
|
|
HostMemory::mem_area_strat(4),
|
|
)
|
|
})
|
|
.prop_map(
|
|
|(test_word, string_ptr_loc, string_len_loc, return_ptr_loc)| Self {
|
|
test_word,
|
|
string_ptr_loc,
|
|
string_len_loc,
|
|
return_ptr_loc,
|
|
},
|
|
)
|
|
.prop_filter("non-overlapping pointers", |e| {
|
|
non_overlapping_set(&[&e.string_ptr_loc, &e.string_len_loc, &e.return_ptr_loc])
|
|
})
|
|
.boxed()
|
|
}
|
|
|
|
pub fn test(&self) {
|
|
let mut ctx = WasiCtx::new();
|
|
let mut host_memory = HostMemory::new();
|
|
let mut guest_memory = GuestMemory::new(host_memory.as_mut_ptr(), host_memory.len() as u32);
|
|
|
|
// Populate string length
|
|
*guest_memory
|
|
.ptr_mut(self.string_len_loc.ptr)
|
|
.expect("ptr mut to string len")
|
|
.as_ref_mut()
|
|
.expect("deref ptr mut to string len") = self.test_word.len() as u32;
|
|
|
|
// Populate string in guest's memory
|
|
{
|
|
let mut next: GuestPtrMut<'_, u8> = guest_memory
|
|
.ptr_mut(self.string_ptr_loc.ptr)
|
|
.expect("ptr mut to the first byte of string");
|
|
for byte in self.test_word.as_bytes() {
|
|
*next.as_ref_mut().expect("deref mut") = *byte;
|
|
next = next.elem(1).expect("increment ptr by 1");
|
|
}
|
|
}
|
|
|
|
let res = foo::hello_string(
|
|
&mut ctx,
|
|
&mut guest_memory,
|
|
self.string_ptr_loc.ptr as i32,
|
|
self.string_len_loc.ptr as i32,
|
|
self.return_ptr_loc.ptr as i32,
|
|
);
|
|
assert_eq!(res, types::Errno::Ok.into(), "hello string errno");
|
|
|
|
let given = *guest_memory
|
|
.ptr::<u32>(self.return_ptr_loc.ptr)
|
|
.expect("ptr to return value")
|
|
.as_ref()
|
|
.expect("deref ptr to return value");
|
|
assert_eq!(self.test_word.len() as u32, given);
|
|
}
|
|
}
|
|
proptest! {
|
|
#[test]
|
|
fn hello_string(e in HelloStringExercise::strat()) {
|
|
e.test()
|
|
}
|
|
}
|
|
|
|
fn cookie_strat() -> impl Strategy<Value = types::Cookie> {
|
|
(0..std::u64::MAX)
|
|
.prop_map(|x| types::Cookie::try_from(x).expect("within range of cookie"))
|
|
.boxed()
|
|
}
|
|
|
|
#[derive(Debug)]
|
|
struct CookieCutterExercise {
|
|
cookie: types::Cookie,
|
|
return_ptr_loc: MemArea,
|
|
}
|
|
|
|
impl CookieCutterExercise {
|
|
pub fn strat() -> BoxedStrategy<Self> {
|
|
(cookie_strat(), HostMemory::mem_area_strat(4))
|
|
.prop_map(|(cookie, return_ptr_loc)| Self {
|
|
cookie,
|
|
return_ptr_loc,
|
|
})
|
|
.boxed()
|
|
}
|
|
|
|
pub fn test(&self) {
|
|
let mut ctx = WasiCtx::new();
|
|
let mut host_memory = HostMemory::new();
|
|
let mut guest_memory = GuestMemory::new(host_memory.as_mut_ptr(), host_memory.len() as u32);
|
|
|
|
let res = foo::cookie_cutter(
|
|
&mut ctx,
|
|
&mut guest_memory,
|
|
self.cookie.into(),
|
|
self.return_ptr_loc.ptr as i32,
|
|
);
|
|
assert_eq!(res, types::Errno::Ok.into(), "cookie cutter errno");
|
|
|
|
let is_cookie_start = *guest_memory
|
|
.ptr::<types::Bool>(self.return_ptr_loc.ptr)
|
|
.expect("ptr to returned Bool")
|
|
.as_ref()
|
|
.expect("deref to Bool value");
|
|
|
|
assert_eq!(
|
|
if is_cookie_start == types::Bool::True {
|
|
true
|
|
} else {
|
|
false
|
|
},
|
|
self.cookie == types::Cookie::START,
|
|
"returned Bool should test if input was Cookie::START",
|
|
);
|
|
}
|
|
}
|
|
proptest! {
|
|
#[test]
|
|
fn cookie_cutter(e in CookieCutterExercise::strat()) {
|
|
e.test()
|
|
}
|
|
}
|