wasmer/lib/emscripten/tests/emtests/_common.rs

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macro_rules! assert_emscripten_output {
($file:expr, $name:expr, $args:expr, $expected:expr) => {{
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use wasmer_clif_backend::CraneliftCompiler;
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use wasmer_emscripten::{
EmscriptenGlobals,
generate_emscripten_env,
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stdio::StdioCapturer
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};
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let wasm_bytes = include_bytes!($file);
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let module = wasmer_runtime_core::compile_with(&wasm_bytes[..], &CraneliftCompiler::new())
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.expect("WASM can't be compiled");
// let module = compile(&wasm_bytes[..])
// .map_err(|err| format!("Can't create the WebAssembly module: {}", err)).unwrap(); // NOTE: Need to figure what the unwrap is for ??
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let mut emscripten_globals = EmscriptenGlobals::new();
let import_object = generate_emscripten_env(&mut emscripten_globals);
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let mut instance = module.instantiate(import_object)
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.map_err(|err| format!("Can't instantiate the WebAssembly module: {:?}", err)).unwrap(); // NOTE: Need to figure what the unwrap is for ??
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let capturer = StdioCapturer::new();
wasmer_emscripten::run_emscripten_instance(
&module,
&mut instance,
$name,
$args,
);
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let output = capturer.end().unwrap().0;
let expected_output = include_str!($expected);
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assert!(
output.contains(expected_output),
"Output: `{}` does not contain expected output: `{}`",
output,
expected_output
);
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}};
}