add validate test

Cargo.toml

@@ -12,6 +12,9 @@ strip = true
 inherits = "dist"
 opt-level = "z"
 
+[profile.release]
+panic = "abort"
+
 [workspace]
 members = [
     "crates/kitsune-activitypub",

lib/mrf-tool/Cargo.toml

@@ -19,3 +19,6 @@ wasmparser = "0.206.0"
 
 [lints]
 workspace = true
+
+[dev-dependencies]
+wat = "1.206.0"

lib/mrf-tool/src/fs.rs

@@ -21,6 +21,13 @@ pub struct DummyFs {
     inner: HashMap<PathBuf, Vec<u8>>,
 }
 
+impl From<HashMap<PathBuf, Vec<u8>>> for DummyFs {
+    #[inline]
+    fn from(value: HashMap<PathBuf, Vec<u8>>) -> Self {
+        Self { inner: value }
+    }
+}
+
 #[inline]
 fn file_not_found() -> io::Error {
     io::Error::new(io::ErrorKind::NotFound, "file not found")

lib/mrf-tool/src/lib.rs

@@ -3,7 +3,7 @@ use clap::Parser;
 use color_eyre::{eyre::bail, Result};
 use std::{ffi::OsString, io::Write, path::Path};
 
-pub use self::fs::{Filesystem, NativeFs};
+pub use self::fs::{DummyFs, Filesystem, NativeFs};
 
 mod args;
 mod fs;

lib/mrf-tool/tests/manifest.rs

@@ -0,0 +1,8 @@
+#[test]
+fn add() {}
+
+#[test]
+fn read() {}
+
+#[test]
+fn remove() {}

lib/mrf-tool/tests/module.rs

@@ -0,0 +1,25 @@
+use mrf_tool::DummyFs;
+use std::{collections::HashMap, io};
+
+#[test]
+fn validate() {
+    let mut value = HashMap::new();
+    value.insert("empty.wasm".into(), wat::parse_str("(module)").unwrap());
+    value.insert("empty.bin".into(), vec![0x00]);
+    let mut fs = DummyFs::from(value);
+
+    let result = mrf_tool::handle(
+        &mut fs,
+        &mut io::sink(),
+        ["mrf-tool", "module", "validate", "empty.wasm"],
+    );
+    assert!(result.is_ok(), "{result:?}");
+
+    let error = mrf_tool::handle(
+        &mut fs,
+        &mut io::sink(),
+        ["mrf-tool", "module", "validate", "empty.bin"],
+    )
+    .unwrap_err();
+    assert!(error.is::<wasmparser::BinaryReaderError>());
+}