Files
wasmer/tests/compilers/traps.rs
2020-11-30 16:52:34 -08:00

521 lines
13 KiB
Rust

use crate::utils::get_store;
use anyhow::Result;
use std::panic::{self, AssertUnwindSafe};
use wasmer::*;
#[test]
fn test_trap_return() -> Result<()> {
let store = get_store(false);
let wat = r#"
(module
(func $hello (import "" "hello"))
(func (export "run") (call $hello))
)
"#;
let module = Module::new(&store, wat)?;
let hello_type = FunctionType::new(vec![], vec![]);
let hello_func = Function::new(&store, &hello_type, |_| Err(RuntimeError::new("test 123")));
let instance = Instance::new(
&module,
&imports! {
"" => {
"hello" => hello_func
}
},
)?;
let run_func = instance
.exports
.get_function("run")
.expect("expected function export");
let e = run_func.call(&[]).err().expect("error calling function");
assert_eq!(e.message(), "test 123");
Ok(())
}
#[test]
#[cfg_attr(
any(
feature = "test-singlepass",
feature = "test-native",
target_arch = "aarch64",
),
ignore
)]
fn test_trap_trace() -> Result<()> {
let store = get_store(false);
let wat = r#"
(module $hello_mod
(func (export "run") (call $hello))
(func $hello (unreachable))
)
"#;
let module = Module::new(&store, wat)?;
let instance = Instance::new(&module, &imports! {})?;
let run_func = instance
.exports
.get_function("run")
.expect("expected function export");
let e = run_func.call(&[]).err().expect("error calling function");
let trace = e.trace();
assert_eq!(trace.len(), 2);
assert_eq!(trace[0].module_name(), "hello_mod");
assert_eq!(trace[0].func_index(), 1);
assert_eq!(trace[0].function_name(), Some("hello"));
assert_eq!(trace[1].module_name(), "hello_mod");
assert_eq!(trace[1].func_index(), 0);
assert_eq!(trace[1].function_name(), None);
assert!(
e.message().contains("unreachable"),
"wrong message: {}",
e.message()
);
Ok(())
}
#[test]
fn test_trap_trace_cb() -> Result<()> {
let store = get_store(false);
let wat = r#"
(module $hello_mod
(import "" "throw" (func $throw))
(func (export "run") (call $hello))
(func $hello (call $throw))
)
"#;
let fn_type = FunctionType::new(vec![], vec![]);
let fn_func = Function::new(&store, &fn_type, |_| Err(RuntimeError::new("cb throw")));
let module = Module::new(&store, wat)?;
let instance = Instance::new(
&module,
&imports! {
"" => {
"throw" => fn_func
}
},
)?;
let run_func = instance
.exports
.get_function("run")
.expect("expected function export");
let e = run_func.call(&[]).err().expect("error calling function");
let trace = e.trace();
println!("Trace {:?}", trace);
// TODO: Reenable this (disabled as it was not working with llvm/singlepass)
// assert_eq!(trace.len(), 2);
// assert_eq!(trace[0].module_name(), "hello_mod");
// assert_eq!(trace[0].func_index(), 2);
// assert_eq!(trace[1].module_name(), "hello_mod");
// assert_eq!(trace[1].func_index(), 1);
assert_eq!(e.message(), "cb throw");
Ok(())
}
#[test]
#[cfg_attr(
any(
feature = "test-singlepass",
feature = "test-native",
target_arch = "aarch64",
),
ignore
)]
fn test_trap_stack_overflow() -> Result<()> {
let store = get_store(false);
let wat = r#"
(module $rec_mod
(func $run (export "run") (call $run))
)
"#;
let module = Module::new(&store, wat)?;
let instance = Instance::new(&module, &imports! {})?;
let run_func = instance
.exports
.get_function("run")
.expect("expected function export");
let e = run_func.call(&[]).err().expect("error calling function");
let trace = e.trace();
assert!(trace.len() >= 32);
for i in 0..trace.len() {
assert_eq!(trace[i].module_name(), "rec_mod");
assert_eq!(trace[i].func_index(), 0);
assert_eq!(trace[i].function_name(), Some("run"));
}
assert!(e.message().contains("call stack exhausted"));
Ok(())
}
#[test]
#[cfg_attr(
any(
feature = "test-singlepass",
feature = "test-llvm",
feature = "test-native",
target_arch = "aarch64",
),
ignore
)]
fn trap_display_pretty() -> Result<()> {
let store = get_store(false);
let wat = r#"
(module $m
(func $die unreachable)
(func call $die)
(func $foo call 1)
(func (export "bar") call $foo)
)
"#;
let module = Module::new(&store, wat)?;
let instance = Instance::new(&module, &imports! {})?;
let run_func = instance
.exports
.get_function("bar")
.expect("expected function export");
let e = run_func.call(&[]).err().expect("error calling function");
assert_eq!(
e.to_string(),
"\
RuntimeError: unreachable
at die (m[0]:0x23)
at <unnamed> (m[1]:0x27)
at foo (m[2]:0x2c)
at <unnamed> (m[3]:0x31)"
);
Ok(())
}
#[test]
#[cfg_attr(
any(
feature = "test-singlepass",
feature = "test-llvm",
feature = "test-native",
target_arch = "aarch64",
),
ignore
)]
fn trap_display_multi_module() -> Result<()> {
let store = get_store(false);
let wat = r#"
(module $a
(func $die unreachable)
(func call $die)
(func $foo call 1)
(func (export "bar") call $foo)
)
"#;
let module = Module::new(&store, wat)?;
let instance = Instance::new(&module, &imports! {})?;
let bar = instance.exports.get_function("bar")?.clone();
let wat = r#"
(module $b
(import "" "" (func $bar))
(func $middle call $bar)
(func (export "bar2") call $middle)
)
"#;
let module = Module::new(&store, wat)?;
let instance = Instance::new(
&module,
&imports! {
"" => {
"" => bar
}
},
)?;
let bar2 = instance
.exports
.get_function("bar2")
.expect("expected function export");
let e = bar2.call(&[]).err().expect("error calling function");
assert_eq!(
e.to_string(),
"\
RuntimeError: unreachable
at die (a[0]:0x23)
at <unnamed> (a[1]:0x27)
at foo (a[2]:0x2c)
at <unnamed> (a[3]:0x31)
at middle (b[1]:0x29)
at <unnamed> (b[2]:0x2e)"
);
Ok(())
}
#[test]
fn trap_start_function_import() -> Result<()> {
let store = get_store(false);
let binary = r#"
(module $a
(import "" "" (func $foo))
(start $foo)
)
"#;
let module = Module::new(&store, &binary)?;
let sig = FunctionType::new(vec![], vec![]);
let func = Function::new(&store, &sig, |_| Err(RuntimeError::new("user trap")));
let err = Instance::new(
&module,
&imports! {
"" => {
"" => func
}
},
)
.err()
.unwrap();
match err {
InstantiationError::Link(_) | InstantiationError::HostEnvInitialization(_) => {
panic!("It should be a start error")
}
InstantiationError::Start(err) => {
assert_eq!(err.message(), "user trap");
}
}
Ok(())
}
#[test]
fn rust_panic_import() -> Result<()> {
let store = get_store(false);
let binary = r#"
(module $a
(import "" "foo" (func $foo))
(import "" "bar" (func $bar))
(func (export "foo") call $foo)
(func (export "bar") call $bar)
)
"#;
let module = Module::new(&store, &binary)?;
let sig = FunctionType::new(vec![], vec![]);
let func = Function::new(&store, &sig, |_| panic!("this is a panic"));
let instance = Instance::new(
&module,
&imports! {
"" => {
"foo" => func,
"bar" => Function::new_native(&store, || panic!("this is another panic"))
}
},
)?;
let func = instance.exports.get_function("foo")?.clone();
let err = panic::catch_unwind(AssertUnwindSafe(|| {
drop(func.call(&[]));
}))
.unwrap_err();
assert_eq!(err.downcast_ref::<&'static str>(), Some(&"this is a panic"));
// TODO: Reenable this (disabled as it was not working with llvm/singlepass)
// It doesn't work either with cranelift and `--test-threads=1`.
// let func = instance.exports.get_function("bar")?.clone();
// let err = panic::catch_unwind(AssertUnwindSafe(|| {
// drop(func.call(&[]));
// }))
// .unwrap_err();
// assert_eq!(
// err.downcast_ref::<&'static str>(),
// Some(&"this is another panic")
// );
Ok(())
}
#[test]
fn rust_panic_start_function() -> Result<()> {
let store = get_store(false);
let binary = r#"
(module $a
(import "" "" (func $foo))
(start $foo)
)
"#;
let module = Module::new(&store, &binary)?;
let sig = FunctionType::new(vec![], vec![]);
let func = Function::new(&store, &sig, |_| panic!("this is a panic"));
let err = panic::catch_unwind(AssertUnwindSafe(|| {
drop(Instance::new(
&module,
&imports! {
"" => {
"" => func
}
},
));
}))
.unwrap_err();
assert_eq!(err.downcast_ref::<&'static str>(), Some(&"this is a panic"));
let func = Function::new_native(&store, || panic!("this is another panic"));
let err = panic::catch_unwind(AssertUnwindSafe(|| {
drop(Instance::new(
&module,
&imports! {
"" => {
"" => func
}
},
));
}))
.unwrap_err();
assert_eq!(
err.downcast_ref::<&'static str>(),
Some(&"this is another panic")
);
Ok(())
}
#[test]
fn mismatched_arguments() -> Result<()> {
let store = get_store(false);
let binary = r#"
(module $a
(func (export "foo") (param i32))
)
"#;
let module = Module::new(&store, &binary)?;
let instance = Instance::new(&module, &imports! {})?;
let func: &Function = instance.exports.get("foo")?;
assert_eq!(
func.call(&[]).unwrap_err().message(),
"Parameters of type [] did not match signature [I32] -> []"
);
assert_eq!(
func.call(&[Val::F32(0.0)]).unwrap_err().message(),
"Parameters of type [F32] did not match signature [I32] -> []",
);
assert_eq!(
func.call(&[Val::I32(0), Val::I32(1)])
.unwrap_err()
.message(),
"Parameters of type [I32, I32] did not match signature [I32] -> []"
);
Ok(())
}
#[test]
#[cfg_attr(
any(
feature = "test-singlepass",
feature = "test-llvm",
feature = "test-native",
all(target_os = "macos", target_arch = "aarch64")
),
ignore
)]
fn call_signature_mismatch() -> Result<()> {
let store = get_store(false);
let binary = r#"
(module $a
(func $foo
i32.const 0
call_indirect)
(func $bar (param i32))
(start $foo)
(table 1 anyfunc)
(elem (i32.const 0) 1)
)
"#;
let module = Module::new(&store, &binary)?;
let err = Instance::new(&module, &imports! {})
.err()
.expect("expected error");
assert_eq!(
format!("{}", err),
"\
RuntimeError: indirect call type mismatch
at foo (a[0]:0x30)\
"
);
Ok(())
}
#[test]
#[cfg_attr(
any(
feature = "test-singlepass",
feature = "test-llvm",
feature = "test-native",
target_arch = "aarch64",
),
ignore
)]
fn start_trap_pretty() -> Result<()> {
let store = get_store(false);
let wat = r#"
(module $m
(func $die unreachable)
(func call $die)
(func $foo call 1)
(func $start call $foo)
(start $start)
)
"#;
let module = Module::new(&store, wat)?;
let err = Instance::new(&module, &imports! {})
.err()
.expect("expected error");
assert_eq!(
format!("{}", err),
"\
RuntimeError: unreachable
at die (m[0]:0x1d)
at <unnamed> (m[1]:0x21)
at foo (m[2]:0x26)
at start (m[3]:0x2b)\
"
);
Ok(())
}
#[test]
fn present_after_module_drop() -> Result<()> {
let store = get_store(false);
let module = Module::new(&store, r#"(func (export "foo") unreachable)"#)?;
let instance = Instance::new(&module, &imports! {})?;
let func: Function = instance.exports.get_function("foo")?.clone();
println!("asserting before we drop modules");
assert_trap(func.call(&[]).unwrap_err());
drop((instance, module));
println!("asserting after drop");
assert_trap(func.call(&[]).unwrap_err());
return Ok(());
fn assert_trap(t: RuntimeError) {
println!("{}", t);
// assert_eq!(t.trace().len(), 1);
// assert_eq!(t.trace()[0].func_index(), 0);
}
}