Files
wasmtime/crates/c-api/tests/wasm-c-examples.rs
Yury Delendik c9dce98ba2 Test wasmtime-c-api crate (#904)
* Test c-api
2020-02-05 14:14:07 -06:00

199 lines
3.7 KiB
Rust

use std::env;
use std::path::PathBuf;
use std::process::Command;
fn run_c_example(name: &'static str, expected_out: &[u8]) {
let cargo = env::var("MAKE").unwrap_or("make".to_string());
let pkg_dir = env!("CARGO_MANIFEST_DIR");
let examples_dir = PathBuf::from(pkg_dir).join("examples");
let make_arg = format!("run-{}-c", name);
let output = Command::new(cargo)
.current_dir(examples_dir)
.args(&["-s", &make_arg])
.output()
.expect("success");
assert!(
output.status.success(),
"failed to execute the C example '{}': {}",
name,
String::from_utf8_lossy(&output.stderr),
);
assert_eq!(
output.stdout.as_slice(),
expected_out,
"unexpected stdout from example: {}",
String::from_utf8_lossy(&output.stdout),
);
}
#[test]
fn test_run_hello_example() {
run_c_example(
"hello",
br#"==== C hello ====
Initializing...
Loading binary...
Compiling module...
Creating callback...
Instantiating module...
Extracting export...
Calling export...
Calling back...
> Hello World!
Shutting down...
Done.
==== Done ====
"#,
);
}
#[test]
fn test_run_memory_example() {
run_c_example(
"memory",
br#"==== C memory ====
Initializing...
Loading binary...
Compiling module...
Instantiating module...
Extracting exports...
Checking memory...
Mutating memory...
Growing memory...
Creating stand-alone memory...
Shutting down...
Done.
==== Done ====
"#,
);
}
#[test]
fn test_run_global_example() {
run_c_example(
"global",
br#"==== C global ====
Initializing...
Loading binary...
Compiling module...
Creating globals...
Instantiating module...
Extracting exports...
Accessing globals...
Shutting down...
Done.
==== Done ====
"#,
);
}
#[test]
fn test_run_callback_example() {
run_c_example(
"callback",
br#"==== C callback ====
Initializing...
Loading binary...
Compiling module...
Creating callback...
Instantiating module...
Extracting export...
Calling export...
Calling back...
> 7
Calling back closure...
> 42
Printing result...
> 49
Shutting down...
Done.
==== Done ====
"#,
);
}
#[test]
fn test_run_reflect_example() {
run_c_example(
"reflect",
br#"==== C reflect ====
Initializing...
Loading binary...
Compiling module...
Instantiating module...
Extracting export...
> export 0 "func"
>> initial: func i32 f64 f32 -> i32
>> current: func i32 f64 f32 -> i32
>> in-arity: 3, out-arity: 1
> export 1 "global"
>> initial: global const f64
>> current: global const f64
> export 2 "table"
>> initial: table 0d 50d funcref
>> current: table 0d 50d funcref
> export 3 "memory"
>> initial: memory 1d
>> current: memory 1d
Shutting down...
Done.
==== Done ====
"#,
);
}
#[test]
fn test_run_start_example() {
run_c_example(
"start",
br#"==== C start ====
Initializing...
Loading binary...
Compiling module...
Instantiating module...
Printing message...
> wasm trap: unreachable, source location: @002e
Printing origin...
> Empty origin.
Printing trace...
> Empty trace.
Shutting down...
Done.
==== Done ====
"#,
);
}
#[test]
fn test_run_trap_example() {
run_c_example(
"trap",
br#"==== C trap ====
Initializing...
Loading binary...
Compiling module...
Creating callback...
Instantiating module...
Extracting exports...
Calling export 0...
Calling back...
Printing message...
> callback abort
Printing origin...
> Empty origin.
Printing trace...
> Empty trace.
Calling export 1...
Printing message...
> wasm trap: unreachable, source location: @0065
Printing origin...
> Empty origin.
Printing trace...
> Empty trace.
Shutting down...
Done.
==== Done ====
"#,
);
}