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wasmer/lib/emscripten/tests/emtests/_common.rs
2019-03-13 20:16:07 -05:00

103 lines
3.6 KiB
Rust

macro_rules! assert_emscripten_output {
($file:expr, $name:expr, $args:expr, $expected:expr) => {{
use wasmer_emscripten::{
EmscriptenGlobals,
generate_emscripten_env,
stdio::StdioCapturer
};
use wasmer_runtime_core::backend::Compiler;
#[cfg(feature = "clif")]
fn get_compiler() -> impl Compiler {
use wasmer_clif_backend::CraneliftCompiler;
CraneliftCompiler::new()
}
#[cfg(feature = "llvm")]
fn get_compiler() -> impl Compiler {
use wasmer_llvm_backend::LLVMCompiler;
LLVMCompiler::new()
}
#[cfg(feature = "dynasm")]
fn get_compiler() -> impl Compiler {
use wasmer_dynasm_backend::SinglePassCompiler;
SinglePassCompiler::new()
}
#[cfg(not(any(feature = "llvm", feature = "clif", feature = "dynasm")))]
fn get_compiler() -> impl Compiler {
panic!("compiler not specified, activate a compiler via features");
use wasmer_clif_backend::CraneliftCompiler;
CraneliftCompiler::new()
}
let wasm_bytes = include_bytes!($file);
let module = wasmer_runtime_core::compile_with(&wasm_bytes[..], &get_compiler())
.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 ??
let mut emscripten_globals = EmscriptenGlobals::new(&module);
let import_object = generate_emscripten_env(&mut emscripten_globals);
let mut instance = module.instantiate(&import_object)
.map_err(|err| format!("Can't instantiate the WebAssembly module: {:?}", err)).unwrap(); // NOTE: Need to figure what the unwrap is for ??
let capturer = StdioCapturer::new();
wasmer_emscripten::run_emscripten_instance(
&module,
&mut instance,
$name,
$args,
).expect("run_emscripten_instance finishes");
let output = capturer.end().unwrap().0;
let expected_output = include_str!($expected);
assert!(
output.contains(expected_output),
"Output: `{}` does not contain expected output: `{}`",
output,
expected_output
);
}};
}
pub fn assert_emscripten_output(wasm_bytes: &[u8], raw_expected_str: &str) {
use wasmer_clif_backend::CraneliftCompiler;
use wasmer_emscripten::{generate_emscripten_env, stdio::StdioCapturer, EmscriptenGlobals};
let module = wasmer_runtime_core::compile_with(&wasm_bytes[..], &CraneliftCompiler::new())
.expect("WASM can't be compiled");
let mut emscripten_globals = EmscriptenGlobals::new(&module);
let import_object = generate_emscripten_env(&mut emscripten_globals);
let mut instance = module
.instantiate(&import_object)
.map_err(|err| format!("Can't instantiate the WebAssembly module: {:?}", err))
.unwrap();
let capturer = StdioCapturer::new();
wasmer_emscripten::run_emscripten_instance(&module, &mut instance, "test", vec![])
.expect("run_emscripten_instance finishes");
let raw_output_string = capturer.end().unwrap().0;
// trim the strings to avoid cross-platform line ending and white space issues
let output = raw_output_string.trim();
let expected_output = raw_expected_str.trim();
let contains_output = output.contains(expected_output);
assert!(
contains_output,
"Output: `{}` does not contain expected output: `{}`",
output, expected_output
);
}