4c82da440a
* Move most wasmtime tests into one test suite This commit moves most wasmtime tests into a single test suite which gets compiled into one executable instead of having lots of test executables. The goal here is to reduce disk space on CI, and this should be achieved by having fewer executables which means fewer copies of `libwasmtime.rlib` linked across binaries on the system. More importantly though this means that DWARF debug information should only be in one executable rather than duplicated across many. * Share more build caches Globally set `RUSTFLAGS` to `-Dwarnings` instead of individually so all build steps share the same value. * Allow some dead code in cranelift-codegen Prevents having to fix all warnings for all possible feature combinations, only the main ones which come up. * Update some debug file paths
104 lines
2.6 KiB
Rust
104 lines
2.6 KiB
Rust
use anyhow::Result;
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use std::cell::RefCell;
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use std::rc::Rc;
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use wasmtime::*;
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#[test]
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fn test_import_calling_export() {
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const WAT: &str = r#"
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(module
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(type $t0 (func))
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(import "" "imp" (func $.imp (type $t0)))
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(func $run call $.imp)
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(func $other)
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(export "run" (func $run))
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(export "other" (func $other))
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)
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"#;
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let store = Store::default();
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let module = Module::new(&store, WAT).expect("failed to create module");
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let other = Rc::new(RefCell::new(None::<Func>));
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let other2 = other.clone();
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let callback_func = Func::new(
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&store,
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FuncType::new(Box::new([]), Box::new([])),
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move |_, _, _| {
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other2
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.borrow()
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.as_ref()
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.expect("expected a function ref")
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.call(&[])
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.expect("expected function not to trap");
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Ok(())
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},
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);
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let imports = vec![callback_func.into()];
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let instance =
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Instance::new(&module, imports.as_slice()).expect("failed to instantiate module");
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let exports = instance.exports();
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assert!(!exports.is_empty());
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let run_func = exports[0]
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.func()
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.expect("expected a run func in the module");
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*other.borrow_mut() = Some(
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exports[1]
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.func()
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.expect("expected an other func in the module")
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.clone(),
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);
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run_func.call(&[]).expect("expected function not to trap");
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}
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#[test]
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fn test_returns_incorrect_type() -> Result<()> {
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const WAT: &str = r#"
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(module
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(import "env" "evil" (func $evil (result i32)))
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(func (export "run") (result i32)
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(call $evil)
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)
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)
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"#;
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let store = Store::default();
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let module = Module::new(&store, WAT)?;
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let callback_func = Func::new(
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&store,
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FuncType::new(Box::new([]), Box::new([ValType::I32])),
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|_, _, results| {
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// Evil! Returns I64 here instead of promised in the signature I32.
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results[0] = Val::I64(228);
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Ok(())
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},
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);
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let imports = vec![callback_func.into()];
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let instance = Instance::new(&module, imports.as_slice())?;
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let exports = instance.exports();
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assert!(!exports.is_empty());
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let run_func = exports[0]
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.func()
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.expect("expected a run func in the module");
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let trap = run_func
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.call(&[])
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.expect_err("the execution should fail")
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.downcast::<Trap>()?;
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assert_eq!(
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trap.message(),
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"function attempted to return an incompatible value"
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);
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Ok(())
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}
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