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386 lines
12 KiB
386 lines
12 KiB
use wasmtime::*;
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#[test]
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fn bad_globals() {
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let ty = GlobalType::new(ValType::I32, Mutability::Var);
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assert!(Global::new(&Store::default(), ty.clone(), Val::I64(0)).is_err());
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assert!(Global::new(&Store::default(), ty.clone(), Val::F32(0)).is_err());
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assert!(Global::new(&Store::default(), ty.clone(), Val::F64(0)).is_err());
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let ty = GlobalType::new(ValType::I32, Mutability::Const);
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let g = Global::new(&Store::default(), ty.clone(), Val::I32(0)).unwrap();
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assert!(g.set(Val::I32(1)).is_err());
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let ty = GlobalType::new(ValType::I32, Mutability::Var);
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let g = Global::new(&Store::default(), ty.clone(), Val::I32(0)).unwrap();
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assert!(g.set(Val::I64(0)).is_err());
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}
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#[test]
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fn bad_tables() {
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// i32 not supported yet
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let ty = TableType::new(ValType::I32, Limits::new(0, Some(1)));
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assert!(Table::new(&Store::default(), ty.clone(), Val::I32(0)).is_err());
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// mismatched initializer
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let ty = TableType::new(ValType::FuncRef, Limits::new(0, Some(1)));
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assert!(Table::new(&Store::default(), ty.clone(), Val::I32(0)).is_err());
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// get out of bounds
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let ty = TableType::new(ValType::FuncRef, Limits::new(0, Some(1)));
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let t = Table::new(&Store::default(), ty.clone(), Val::FuncRef(None)).unwrap();
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assert!(t.get(0).is_none());
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assert!(t.get(u32::max_value()).is_none());
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// set out of bounds or wrong type
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let ty = TableType::new(ValType::FuncRef, Limits::new(1, Some(1)));
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let t = Table::new(&Store::default(), ty.clone(), Val::FuncRef(None)).unwrap();
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assert!(t.set(0, Val::I32(0)).is_err());
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assert!(t.set(0, Val::FuncRef(None)).is_ok());
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assert!(t.set(1, Val::FuncRef(None)).is_err());
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// grow beyond max
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let ty = TableType::new(ValType::FuncRef, Limits::new(1, Some(1)));
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let t = Table::new(&Store::default(), ty.clone(), Val::FuncRef(None)).unwrap();
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assert!(t.grow(0, Val::FuncRef(None)).is_ok());
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assert!(t.grow(1, Val::FuncRef(None)).is_err());
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assert_eq!(t.size(), 1);
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// grow wrong type
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let ty = TableType::new(ValType::FuncRef, Limits::new(1, Some(2)));
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let t = Table::new(&Store::default(), ty.clone(), Val::FuncRef(None)).unwrap();
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assert!(t.grow(1, Val::I32(0)).is_err());
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assert_eq!(t.size(), 1);
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}
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#[test]
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fn cross_store() -> anyhow::Result<()> {
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let mut cfg = Config::new();
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cfg.wasm_reference_types(true);
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let engine = Engine::new(&cfg);
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let store1 = Store::new(&engine);
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let store2 = Store::new(&engine);
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// ============ Cross-store instantiation ==============
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let func = Func::wrap(&store2, || {});
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let ty = GlobalType::new(ValType::I32, Mutability::Const);
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let global = Global::new(&store2, ty, Val::I32(0))?;
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let ty = MemoryType::new(Limits::new(1, None));
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let memory = Memory::new(&store2, ty);
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let ty = TableType::new(ValType::FuncRef, Limits::new(1, None));
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let table = Table::new(&store2, ty, Val::FuncRef(None))?;
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let need_func = Module::new(&engine, r#"(module (import "" "" (func)))"#)?;
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assert!(Instance::new(&store1, &need_func, &[func.into()]).is_err());
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let need_global = Module::new(&engine, r#"(module (import "" "" (global i32)))"#)?;
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assert!(Instance::new(&store1, &need_global, &[global.into()]).is_err());
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let need_table = Module::new(&engine, r#"(module (import "" "" (table 1 funcref)))"#)?;
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assert!(Instance::new(&store1, &need_table, &[table.into()]).is_err());
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let need_memory = Module::new(&engine, r#"(module (import "" "" (memory 1)))"#)?;
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assert!(Instance::new(&store1, &need_memory, &[memory.into()]).is_err());
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// ============ Cross-store globals ==============
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let store1val = Val::FuncRef(Some(Func::wrap(&store1, || {})));
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let store2val = Val::FuncRef(Some(Func::wrap(&store2, || {})));
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let ty = GlobalType::new(ValType::FuncRef, Mutability::Var);
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assert!(Global::new(&store2, ty.clone(), store1val.clone()).is_err());
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if let Ok(g) = Global::new(&store2, ty.clone(), store2val.clone()) {
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assert!(g.set(store1val.clone()).is_err());
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}
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// ============ Cross-store tables ==============
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let ty = TableType::new(ValType::FuncRef, Limits::new(1, None));
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assert!(Table::new(&store2, ty.clone(), store1val.clone()).is_err());
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let t1 = Table::new(&store2, ty.clone(), store2val.clone())?;
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assert!(t1.set(0, store1val.clone()).is_err());
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assert!(t1.grow(0, store1val.clone()).is_err());
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assert!(t1.fill(0, store1val.clone(), 1).is_err());
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let t2 = Table::new(&store1, ty.clone(), store1val.clone())?;
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assert!(Table::copy(&t1, 0, &t2, 0, 0).is_err());
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// ============ Cross-store funcs ==============
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let module = Module::new(&engine, r#"(module (func (export "f") (param funcref)))"#)?;
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let s1_inst = Instance::new(&store1, &module, &[])?;
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let s2_inst = Instance::new(&store2, &module, &[])?;
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let s1_f = s1_inst.get_func("f").unwrap();
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let s2_f = s2_inst.get_func("f").unwrap();
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assert!(s1_f.call(&[Val::FuncRef(None)]).is_ok());
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assert!(s2_f.call(&[Val::FuncRef(None)]).is_ok());
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assert!(s1_f.call(&[Val::FuncRef(Some(s1_f.clone()))]).is_ok());
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assert!(s1_f.call(&[Val::FuncRef(Some(s2_f.clone()))]).is_err());
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assert!(s2_f.call(&[Val::FuncRef(Some(s1_f.clone()))]).is_err());
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assert!(s2_f.call(&[Val::FuncRef(Some(s2_f.clone()))]).is_ok());
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Ok(())
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}
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#[test]
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fn get_set_externref_globals_via_api() -> anyhow::Result<()> {
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let mut cfg = Config::new();
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cfg.wasm_reference_types(true);
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let engine = Engine::new(&cfg);
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let store = Store::new(&engine);
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// Initialize with a null externref.
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let global = Global::new(
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&store,
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GlobalType::new(ValType::ExternRef, Mutability::Var),
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Val::ExternRef(None),
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)?;
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assert!(global.get().unwrap_externref().is_none());
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global.set(Val::ExternRef(Some(ExternRef::new("hello".to_string()))))?;
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let r = global.get().unwrap_externref().unwrap();
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assert!(r.data().is::<String>());
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assert_eq!(r.data().downcast_ref::<String>().unwrap(), "hello");
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// Initialize with a non-null externref.
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let global = Global::new(
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&store,
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GlobalType::new(ValType::ExternRef, Mutability::Const),
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Val::ExternRef(Some(ExternRef::new(42_i32))),
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)?;
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let r = global.get().unwrap_externref().unwrap();
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assert!(r.data().is::<i32>());
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assert_eq!(r.data().downcast_ref::<i32>().copied().unwrap(), 42);
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Ok(())
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}
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#[test]
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fn get_set_funcref_globals_via_api() -> anyhow::Result<()> {
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let mut cfg = Config::new();
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cfg.wasm_reference_types(true);
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let engine = Engine::new(&cfg);
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let store = Store::new(&engine);
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let f = Func::wrap(&store, || {});
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// Initialize with a null funcref.
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let global = Global::new(
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&store,
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GlobalType::new(ValType::FuncRef, Mutability::Var),
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Val::FuncRef(None),
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)?;
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assert!(global.get().unwrap_funcref().is_none());
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global.set(Val::FuncRef(Some(f.clone())))?;
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let f2 = global.get().unwrap_funcref().cloned().unwrap();
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assert_eq!(f.ty(), f2.ty());
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// Initialize with a non-null funcref.
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let global = Global::new(
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&store,
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GlobalType::new(ValType::FuncRef, Mutability::Var),
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Val::FuncRef(Some(f.clone())),
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)?;
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let f2 = global.get().unwrap_funcref().cloned().unwrap();
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assert_eq!(f.ty(), f2.ty());
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Ok(())
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}
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#[test]
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fn create_get_set_funcref_tables_via_api() -> anyhow::Result<()> {
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let mut cfg = Config::new();
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cfg.wasm_reference_types(true);
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let engine = Engine::new(&cfg);
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let store = Store::new(&engine);
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let table_ty = TableType::new(ValType::FuncRef, Limits::at_least(10));
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let table = Table::new(
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&store,
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table_ty,
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Val::FuncRef(Some(Func::wrap(&store, || {}))),
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)?;
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assert!(table.get(5).unwrap().unwrap_funcref().is_some());
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table.set(5, Val::FuncRef(None))?;
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assert!(table.get(5).unwrap().unwrap_funcref().is_none());
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Ok(())
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}
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#[test]
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fn fill_funcref_tables_via_api() -> anyhow::Result<()> {
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let mut cfg = Config::new();
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cfg.wasm_reference_types(true);
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let engine = Engine::new(&cfg);
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let store = Store::new(&engine);
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let table_ty = TableType::new(ValType::FuncRef, Limits::at_least(10));
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let table = Table::new(&store, table_ty, Val::FuncRef(None))?;
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for i in 0..10 {
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assert!(table.get(i).unwrap().unwrap_funcref().is_none());
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}
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table.fill(2, Val::FuncRef(Some(Func::wrap(&store, || {}))), 4)?;
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for i in (0..2).chain(7..10) {
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assert!(table.get(i).unwrap().unwrap_funcref().is_none());
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}
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for i in 2..6 {
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assert!(table.get(i).unwrap().unwrap_funcref().is_some());
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}
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Ok(())
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}
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#[test]
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fn grow_funcref_tables_via_api() -> anyhow::Result<()> {
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let mut cfg = Config::new();
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cfg.wasm_reference_types(true);
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let engine = Engine::new(&cfg);
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let store = Store::new(&engine);
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let table_ty = TableType::new(ValType::FuncRef, Limits::at_least(10));
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let table = Table::new(&store, table_ty, Val::FuncRef(None))?;
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assert_eq!(table.size(), 10);
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table.grow(3, Val::FuncRef(None))?;
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assert_eq!(table.size(), 13);
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Ok(())
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}
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#[test]
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fn create_get_set_externref_tables_via_api() -> anyhow::Result<()> {
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let mut cfg = Config::new();
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cfg.wasm_reference_types(true);
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let engine = Engine::new(&cfg);
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let store = Store::new(&engine);
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let table_ty = TableType::new(ValType::ExternRef, Limits::at_least(10));
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let table = Table::new(
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&store,
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table_ty,
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Val::ExternRef(Some(ExternRef::new(42_usize))),
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)?;
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assert_eq!(
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*table
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.get(5)
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.unwrap()
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.unwrap_externref()
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.unwrap()
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.data()
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.downcast_ref::<usize>()
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.unwrap(),
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42
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);
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table.set(5, Val::ExternRef(None))?;
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assert!(table.get(5).unwrap().unwrap_externref().is_none());
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Ok(())
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}
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#[test]
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fn fill_externref_tables_via_api() -> anyhow::Result<()> {
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let mut cfg = Config::new();
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cfg.wasm_reference_types(true);
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let engine = Engine::new(&cfg);
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let store = Store::new(&engine);
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let table_ty = TableType::new(ValType::ExternRef, Limits::at_least(10));
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let table = Table::new(&store, table_ty, Val::ExternRef(None))?;
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for i in 0..10 {
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assert!(table.get(i).unwrap().unwrap_externref().is_none());
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}
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table.fill(2, Val::ExternRef(Some(ExternRef::new(42_usize))), 4)?;
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for i in (0..2).chain(7..10) {
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assert!(table.get(i).unwrap().unwrap_externref().is_none());
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}
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for i in 2..6 {
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assert_eq!(
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*table
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.get(i)
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.unwrap()
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.unwrap_externref()
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.unwrap()
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.data()
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.downcast_ref::<usize>()
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.unwrap(),
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42
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);
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}
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Ok(())
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}
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#[test]
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fn grow_externref_tables_via_api() -> anyhow::Result<()> {
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let mut cfg = Config::new();
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cfg.wasm_reference_types(true);
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let engine = Engine::new(&cfg);
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let store = Store::new(&engine);
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let table_ty = TableType::new(ValType::ExternRef, Limits::at_least(10));
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let table = Table::new(&store, table_ty, Val::ExternRef(None))?;
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assert_eq!(table.size(), 10);
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table.grow(3, Val::ExternRef(None))?;
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assert_eq!(table.size(), 13);
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Ok(())
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}
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#[test]
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fn read_write_memory_via_api() {
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let cfg = Config::new();
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let store = Store::new(&Engine::new(&cfg));
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let ty = MemoryType::new(Limits::new(1, None));
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let mem = Memory::new(&store, ty);
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mem.grow(1).unwrap();
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let value = b"hello wasm";
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mem.write(mem.data_size() - value.len(), value).unwrap();
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let mut buffer = [0u8; 10];
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mem.read(mem.data_size() - buffer.len(), &mut buffer)
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.unwrap();
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assert_eq!(value, &buffer);
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// Error conditions.
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// Out of bounds write.
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let res = mem.write(mem.data_size() - value.len() + 1, value);
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assert!(res.is_err());
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assert_ne!(
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unsafe { mem.data_unchecked()[mem.data_size() - value.len() + 1] },
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value[0],
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"no data is written",
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);
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// Out of bounds read.
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buffer[0] = 0x42;
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let res = mem.read(mem.data_size() - buffer.len() + 1, &mut buffer);
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assert!(res.is_err());
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assert_eq!(buffer[0], 0x42, "no data is read");
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// Read offset overflow.
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let res = mem.read(usize::MAX, &mut buffer);
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assert!(res.is_err());
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// Write offset overflow.
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let res = mem.write(usize::MAX, &mut buffer);
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assert!(res.is_err());
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}
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