ed8908efcf
This addresses #4307. For the static API we generate 100 arbitrary test cases at build time, each of which includes 0-5 parameter types, a result type, and a WAT fragment containing an imported function and an exported function. The exported function calls the imported function, which is implemented by the host. At runtime, the fuzz test selects a test case at random and feeds it zero or more sets of arbitrary parameters and results, checking that values which flow host-to-guest and guest-to-host make the transition unchanged. The fuzz test for the dynamic API follows a similar pattern, the only difference being that test cases are generated at runtime. Signed-off-by: Joel Dice <joel.dice@fermyon.com>
23 lines
592 B
Rust
23 lines
592 B
Rust
#![no_main]
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use libfuzzer_sys::fuzz_target;
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use wasmtime_fuzzing::oracles;
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include!(concat!(env!("OUT_DIR"), "/static_component_api.rs"));
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#[allow(unused_imports)]
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fn target(input: &mut arbitrary::Unstructured) -> arbitrary::Result<()> {
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if input.arbitrary()? {
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static_component_api_target(input)
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} else {
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oracles::dynamic_component_api_target(input)
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}
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}
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fuzz_target!(|bytes: &[u8]| {
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match target(&mut arbitrary::Unstructured::new(bytes)) {
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Ok(()) | Err(arbitrary::Error::NotEnoughData) => (),
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Err(error) => panic!("{}", error),
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}
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});
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