4c82da440a
* Move most wasmtime tests into one test suite This commit moves most wasmtime tests into a single test suite which gets compiled into one executable instead of having lots of test executables. The goal here is to reduce disk space on CI, and this should be achieved by having fewer executables which means fewer copies of `libwasmtime.rlib` linked across binaries on the system. More importantly though this means that DWARF debug information should only be in one executable rather than duplicated across many. * Share more build caches Globally set `RUSTFLAGS` to `-Dwarnings` instead of individually so all build steps share the same value. * Allow some dead code in cranelift-codegen Prevents having to fix all warnings for all possible feature combinations, only the main ones which come up. * Update some debug file paths
125 lines
3.4 KiB
Rust
125 lines
3.4 KiB
Rust
use anyhow::{bail, Result};
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use std::io::Write;
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use std::path::Path;
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use std::process::{Command, Output};
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use tempfile::NamedTempFile;
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// Run the wasmtime CLI with the provided args and return the `Output`.
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fn run_wasmtime_for_output(args: &[&str]) -> Result<Output> {
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let mut me = std::env::current_exe()?;
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me.pop(); // chop off the file name
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me.pop(); // chop off `deps`
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me.push("wasmtime");
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Command::new(&me).args(args).output().map_err(Into::into)
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}
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// Run the wasmtime CLI with the provided args and, if it succeeds, return
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// the standard output in a `String`.
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fn run_wasmtime(args: &[&str]) -> Result<String> {
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let output = run_wasmtime_for_output(args)?;
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if !output.status.success() {
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bail!(
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"Failed to execute wasmtime with: {:?}\n{}",
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args,
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String::from_utf8_lossy(&output.stderr)
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);
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}
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Ok(String::from_utf8(output.stdout).unwrap())
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}
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fn build_wasm(wat_path: impl AsRef<Path>) -> Result<NamedTempFile> {
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let mut wasm_file = NamedTempFile::new()?;
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let wasm = wat::parse_file(wat_path)?;
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wasm_file.write(&wasm)?;
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Ok(wasm_file)
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}
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// Very basic use case: compile binary wasm file and run specific function with arguments.
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#[test]
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fn run_wasmtime_simple() -> Result<()> {
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let wasm = build_wasm("tests/wasm/simple.wat")?;
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run_wasmtime(&[
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"run",
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wasm.path().to_str().unwrap(),
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"--invoke",
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"simple",
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"--disable-cache",
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"4",
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])?;
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Ok(())
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}
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// Wasmtime shakk when not enough arguments were provided.
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#[test]
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fn run_wasmtime_simple_fail_no_args() -> Result<()> {
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let wasm = build_wasm("tests/wasm/simple.wat")?;
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assert!(
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run_wasmtime(&[
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"run",
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wasm.path().to_str().unwrap(),
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"--disable-cache",
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"--invoke",
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"simple",
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])
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.is_err(),
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"shall fail"
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);
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Ok(())
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}
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// Running simple wat
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#[test]
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fn run_wasmtime_simple_wat() -> Result<()> {
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let wasm = build_wasm("tests/wasm/simple.wat")?;
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run_wasmtime(&[
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"run",
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wasm.path().to_str().unwrap(),
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"--invoke",
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"simple",
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"--disable-cache",
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"4",
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])?;
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Ok(())
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}
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// Running a wat that traps.
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#[test]
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fn run_wasmtime_unreachable_wat() -> Result<()> {
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let wasm = build_wasm("tests/wasm/unreachable.wat")?;
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let output = run_wasmtime_for_output(&[wasm.path().to_str().unwrap(), "--disable-cache"])?;
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assert_ne!(output.stderr, b"");
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assert_eq!(output.stdout, b"");
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assert!(!output.status.success());
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let code = output
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.status
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.code()
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.expect("wasmtime process should exit normally");
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// Test for the specific error code Wasmtime uses to indicate a trap return.
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#[cfg(unix)]
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assert_eq!(code, 128 + libc::SIGABRT);
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#[cfg(windows)]
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assert_eq!(code, 3);
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Ok(())
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}
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// Run a simple WASI hello world, snapshot0 edition.
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#[test]
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fn hello_wasi_snapshot0() -> Result<()> {
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let wasm = build_wasm("tests/wasm/hello_wasi_snapshot0.wat")?;
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let stdout = run_wasmtime(&[wasm.path().to_str().unwrap(), "--disable-cache"])?;
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assert_eq!(stdout, "Hello, world!\n");
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Ok(())
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}
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// Run a simple WASI hello world, snapshot1 edition.
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#[test]
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fn hello_wasi_snapshot1() -> Result<()> {
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let wasm = build_wasm("tests/wasm/hello_wasi_snapshot1.wat")?;
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let stdout = run_wasmtime(&[wasm.path().to_str().unwrap(), "--disable-cache"])?;
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assert_eq!(stdout, "Hello, world!\n");
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Ok(())
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}
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