1ce2a87149
* Remove `Config::for_target` in favor of setter `Config::target`. * Remove explicit setting of Cranelift flags in `Config::new` in favor of calling the `Config` methods that do the same thing. * Serialize the package version independently of the data when serializing a module. * Use struct deconstructing in module serialization to ensure tunables and features aren't missed. * Move common log initialization in the CLI into `CommonOptions`.
63 lines
1.7 KiB
Rust
63 lines
1.7 KiB
Rust
use anyhow::{bail, Result};
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use wasmtime::*;
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fn serialize(engine: &Engine, wat: &'static str) -> Result<Vec<u8>> {
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let module = Module::new(&engine, wat)?;
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Ok(module.serialize()?)
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}
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fn deserialize_and_instantiate(store: &Store, buffer: &[u8]) -> Result<Instance> {
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let module = Module::deserialize(store.engine(), buffer)?;
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Ok(Instance::new(&store, &module, &[])?)
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}
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#[test]
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fn test_version_mismatch() -> Result<()> {
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let engine = Engine::default();
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let mut buffer = serialize(&engine, "(module)")?;
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buffer[1] = 'x' as u8;
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match Module::deserialize(&engine, &buffer) {
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Ok(_) => bail!("expected deserialization to fail"),
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Err(e) => assert_eq!(
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e.to_string(),
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"Module was compiled with incompatible Wasmtime version 'x.25.0'"
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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 test_module_serialize_simple() -> Result<()> {
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let buffer = serialize(
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&Engine::default(),
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"(module (func (export \"run\") (result i32) i32.const 42))",
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)?;
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let store = Store::default();
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let instance = deserialize_and_instantiate(&store, &buffer)?;
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let run = instance.get_typed_func::<(), i32>("run")?;
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let result = run.call(())?;
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assert_eq!(42, result);
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Ok(())
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}
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#[test]
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fn test_module_serialize_fail() -> Result<()> {
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let buffer = serialize(
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&Engine::default(),
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"(module (func (export \"run\") (result i32) i32.const 42))",
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)?;
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let mut config = Config::new();
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config.cranelift_opt_level(OptLevel::None);
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let store = Store::new(&Engine::new(&config)?);
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match deserialize_and_instantiate(&store, &buffer) {
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Ok(_) => bail!("expected failure at deserialization"),
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Err(_) => (),
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}
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Ok(())
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}
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