Merge branch 'master' into feature/map-dir

.circleci/config.yml

@@ -60,7 +60,6 @@ jobs:
       - restore_cache:
           keys:
             - v8-test-cargo-cache-linux-stable-{{ arch }}-{{ checksum "Cargo.lock" }}
-            - v8-test-cargo-cache-linux-stable-{{ arch }}
       - <<: *run_install_dependencies
       - run:
           name: Tests
@@ -158,7 +157,6 @@ jobs:
       - restore_cache:
           keys:
             - v8-cargo-cache-linux-nightly-{{ arch }}-{{ checksum "Cargo.lock" }}
-            - v8-cargo-cache-linux-nightly-{{ arch }}
       - run:
           name: Install dependencies
           command: |
@@ -226,7 +224,6 @@ jobs:
       - restore_cache:
           keys:
             - v8-cargo-cache-darwin-nightly-{{ arch }}-{{ checksum "Cargo.lock" }}
-            - v8-cargo-cache-darwin-nightly-{{ arch }}
       - run:
           name: Install crate dependencies
           command: |
@@ -309,18 +306,21 @@ jobs:
       - restore_cache:
           keys:
             - v8-cargo-cache-linux-nightly-{{ arch }}-{{ checksum "Cargo.lock" }}
-            - v8-cargo-cache-linux-nightly-{{ arch }}
       - run:
           name: Install dependencies
           command: |
             sudo apt-get install -y cmake
             curl -O https://releases.llvm.org/7.0.0/clang+llvm-7.0.0-x86_64-linux-gnu-ubuntu-16.04.tar.xz
             tar xf clang+llvm-7.0.0-x86_64-linux-gnu-ubuntu-16.04.tar.xz
+            rustup toolchain install nightly
+            rustup target add wasm32-wasi --toolchain nightly
       - run: rustup default nightly-2019-04-11
       - run: |
           export LLVM_SYS_70_PREFIX="`pwd`/clang+llvm-7.0.0-x86_64-linux-gnu-ubuntu-16.04/"
           make test
           make test-singlepass
+          make test-wasi-singlepass
+          make test-wasi-clif
           make test-emscripten-clif
           make test-emscripten-singlepass
       - save_cache:

Cargo.lock

@@ -2287,6 +2287,7 @@ dependencies = [
  "structopt 0.2.15 (registry+https://github.com/rust-lang/crates.io-index)",
  "wabt 0.7.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "wasmer-clif-backend 0.4.2",
+ "wasmer-dev-utils 0.4.2",
  "wasmer-emscripten 0.4.2",
  "wasmer-kernel-loader 0.1.0",
  "wasmer-llvm-backend 0.4.2",
@@ -2322,6 +2323,13 @@ dependencies = [
  "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "wasmer-dev-utils"
+version = "0.4.2"
+dependencies = [
+ "libc 0.2.54 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "wasmer-emscripten"
 version = "0.4.2"
@@ -2334,6 +2342,7 @@ dependencies = [
  "time 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)",
  "wabt 0.7.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "wasmer-clif-backend 0.4.2",
+ "wasmer-dev-utils 0.4.2",
  "wasmer-llvm-backend 0.4.2",
  "wasmer-runtime-core 0.4.2",
  "wasmer-singlepass-backend 0.4.2",
@@ -2474,11 +2483,15 @@ version = "0.4.2"
 dependencies = [
  "byteorder 1.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "generational-arena 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "glob 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "hashbrown 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.54 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "wasmer-clif-backend 0.4.2",
+ "wasmer-dev-utils 0.4.2",
  "wasmer-runtime-core 0.4.2",
+ "wasmer-singlepass-backend 0.4.2",
 ]
 
 [[package]]

Cargo.toml

@@ -34,9 +34,10 @@ wasmer-emscripten = { path = "lib/emscripten" }
 wasmer-llvm-backend = { path = "lib/llvm-backend", optional = true }
 wasmer-wasi = { path = "lib/wasi", optional = true }
 wasmer-kernel-loader = { path = "lib/kernel-loader", optional = true }
+wasmer-dev-utils = { path = "lib/dev-utils", optional = true }
 
 [workspace]
-members = ["lib/clif-backend", "lib/singlepass-backend", "lib/runtime", "lib/runtime-abi", "lib/runtime-core", "lib/emscripten", "lib/spectests", "lib/win-exception-handler", "lib/runtime-c-api", "lib/llvm-backend", "lib/wasi", "lib/middleware-common", "lib/kernel-loader", "lib/kernel-net", "examples/plugin-for-example"]
+members = ["lib/clif-backend", "lib/singlepass-backend", "lib/runtime", "lib/runtime-abi", "lib/runtime-core", "lib/emscripten", "lib/spectests", "lib/win-exception-handler", "lib/runtime-c-api", "lib/llvm-backend", "lib/wasi", "lib/middleware-common", "lib/kernel-loader", "lib/kernel-net", "lib/dev-utils", "examples/plugin-for-example"]
 
 [build-dependencies]
 wabt = "0.7.2"

Makefile

@@ -12,6 +12,9 @@ spectests:
 emtests:
 	WASM_EMSCRIPTEN_GENERATE_EMTESTS=1 cargo build -p wasmer-emscripten
 
+wasitests:
+	WASM_WASI_GENERATE_WASITESTS=1 cargo build -p wasmer-wasi
+
 # clean:
 #     rm -rf artifacts
 
@@ -45,7 +48,7 @@ do-install:
 
 test:
 	# We use one thread so the emscripten stdouts doesn't collide
-	cargo test --all --exclude wasmer-runtime-c-api --exclude wasmer-emscripten --exclude wasmer-spectests --exclude wasmer-singlepass-backend -- $(runargs)
+	cargo test --all --exclude wasmer-runtime-c-api --exclude wasmer-emscripten --exclude wasmer-spectests --exclude wasmer-singlepass-backend --exclude wasmer-wasi -- $(runargs)
 	# cargo test --all --exclude wasmer-emscripten -- --test-threads=1 $(runargs)
 	cargo test --manifest-path lib/spectests/Cargo.toml --features clif
 	cargo test --manifest-path lib/spectests/Cargo.toml --features llvm
@@ -66,6 +69,12 @@ test-emscripten-clif:
 test-emscripten-singlepass:
 	cargo test --manifest-path lib/emscripten/Cargo.toml --features singlepass -- --test-threads=1 $(runargs)
 
+test-wasi-clif:
+	cargo test --manifest-path lib/wasi/Cargo.toml --features "clif" -- $(runargs)
+
+test-wasi-singlepass:
+	cargo test --manifest-path lib/wasi/Cargo.toml --features "singlepass" -- $(runargs)
+
 singlepass-debug-release:
 	cargo +nightly build --features backend:singlepass,debug --release
 

lib/dev-utils/Cargo.toml

@@ -0,0 +1,11 @@
+[package]
+name = "wasmer-dev-utils"
+version = "0.4.2"
+description = "Wasmer runtime core library"
+license = "MIT"
+authors = ["The Wasmer Engineering Team <engineering@wasmer.io>"]
+edition = "2018"
+repository = "https://github.com/wasmerio/wasmer"
+
+[dependencies]
+libc = "0.2.49"

lib/dev-utils/README.md

@@ -0,0 +1,3 @@
+# Dev Utils
+
+This is shared code between the modules for testing and development only.  Code in this crate will not be shipped.

lib/dev-utils/src/lib.rs

@@ -0,0 +1,2 @@
+pub mod file_descriptor;
+pub mod stdio;

lib/emscripten/Cargo.toml

@@ -23,6 +23,7 @@ rand = "0.6"
 
 [dev-dependencies]
 wabt = "0.7.2"
+wasmer-dev-utils = { path = "../dev-utils", version = "0.4.2"}
 
 [build-dependencies]
 glob = "0.2.11"

lib/emscripten/build/emtests.rs

@@ -5,6 +5,7 @@
 //! - Generate the test that will compare the output of running the .wasm file
 //!   with wasmer with the expected output
 use glob::glob;
+use std::collections::HashSet;
 use std::fs;
 use std::path::Path;
 use std::path::PathBuf;
@@ -20,7 +21,7 @@ static BANNER: &str = "// Rust test file autogenerated with cargo build (build/e
 const EXTENSIONS: [&str; 2] = ["c", "cpp"];
 const EXCLUDES: [&str; 0] = [];
 
-pub fn compile(file: &str, ignores: &Vec<String>) -> Option<String> {
+pub fn compile(file: &str, ignores: &HashSet<String>) -> Option<String> {
     let mut output_path = PathBuf::from(file);
     output_path.set_extension("out");
     //    let output_str = output_path.to_str().unwrap();
@@ -49,11 +50,7 @@ pub fn compile(file: &str, ignores: &Vec<String>) -> Option<String> {
     let wasm_file_metadata = {
         let mut wasm_file_path = PathBuf::from(file);
         wasm_file_path.set_extension("wasm");
-        if let Ok(wasm_file) = File::open(wasm_file_path) {
-            Some(wasm_file.metadata().unwrap())
-        } else {
-            None
-        }
+        File::open(wasm_file_path).and_then(|wf| wf.metadata()).ok()
     };
 
     let real_file = File::open(file).unwrap();
@@ -111,10 +108,7 @@ pub fn compile(file: &str, ignores: &Vec<String>) -> Option<String> {
         "txt"
     };
 
-    let ignored = if ignores
-        .iter()
-        .any(|i| &i.to_lowercase() == &module_name.to_lowercase())
-    {
+    let ignored = if ignores.contains(&module_name.to_lowercase()) {
         "\n#[ignore]"
     } else {
         ""
@@ -193,8 +187,11 @@ pub fn build() {
     }
 }
 
-fn read_ignore_list() -> Vec<String> {
+fn read_ignore_list() -> HashSet<String> {
     let f = File::open("emtests/ignores.txt").unwrap();
     let f = BufReader::new(f);
-    f.lines().filter_map(Result::ok).collect()
+    f.lines()
+        .filter_map(Result::ok)
+        .map(|v| v.to_lowercase())
+        .collect()
 }

lib/emscripten/src/lib.rs

@@ -24,9 +24,6 @@ use wasmer_runtime_core::{
 
 #[macro_use]
 mod macros;
-//#[cfg(test)]
-mod file_descriptor;
-pub mod stdio;
 
 // EMSCRIPTEN APIS
 mod bitwise;

lib/emscripten/tests/emtests/_common.rs

@@ -4,9 +4,11 @@ macro_rules! assert_emscripten_output {
         use wasmer_emscripten::{
             EmscriptenGlobals,
             generate_emscripten_env,
-            stdio::StdioCapturer
         };
-        use wasmer_runtime_core::backend::Compiler;
+        use wasmer_runtime_core::{
+            backend::Compiler,
+        };
+        use wasmer_dev_utils::stdio::StdioCapturer;
 
         #[cfg(feature = "clif")]
         fn get_compiler() -> impl Compiler {

lib/wasi/Cargo.toml

@@ -6,6 +6,7 @@ license = "MIT"
 authors = ["The Wasmer Engineering Team <engineering@wasmer.io>"]
 repository = "https://github.com/wasmerio/wasmer"
 edition = "2018"
+build = "build/mod.rs"
 
 [dependencies]
 wasmer-runtime-core = { path = "../runtime-core", version = "0.4.2" }
@@ -16,3 +17,16 @@ hashbrown = "0.1.8"
 generational-arena = "0.2.2"
 log = "0.4.6"
 byteorder = "1.3.1"
+# hack to get tests to work
+wasmer-singlepass-backend = { path = "../singlepass-backend", version = "0.4.2", optional = true }
+
+[build-dependencies]
+glob = "0.2.11"
+
+[dev-dependencies]
+wasmer-clif-backend = { path = "../clif-backend", version = "0.4.2" }
+wasmer-dev-utils = { path = "../dev-utils", version = "0.4.2"}
+
+[features]
+clif = []
+singlepass = ["wasmer-singlepass-backend"]

lib/wasi/build/mod.rs

@@ -0,0 +1,11 @@
+use std::env;
+
+mod wasitests;
+
+static WASITESTS_ENV_VAR: &str = "WASM_WASI_GENERATE_WASITESTS";
+
+fn main() {
+    if env::var(WASITESTS_ENV_VAR).unwrap_or("0".to_string()) == "1" {
+        wasitests::build();
+    }
+}

lib/wasi/build/wasitests.rs

@@ -0,0 +1,145 @@
+//! This file will run at build time to autogenerate the WASI regression tests
+//! It will compile the files indicated in TESTS, to:executable and .wasm
+//! - Compile with the native rust target to get the expected output
+//! - Compile with the latest WASI target to get the wasm
+//! - Generate the test that will compare the output of running the .wasm file
+//!   with wasmer with the expected output
+
+use glob::glob;
+use std::collections::HashSet;
+use std::fs;
+use std::path::PathBuf;
+use std::process::Command;
+
+use std::fs::File;
+use std::io::prelude::*;
+use std::io::BufReader;
+
+static BANNER: &str = "// !!! THIS IS A GENERATED FILE !!!
+// ANY MANUAL EDITS MAY BE OVERWRITTEN AT ANY TIME
+// Files autogenerated with cargo build (build/wasitests.rs).\n";
+
+pub fn compile(file: &str, ignores: &HashSet<String>) -> Option<String> {
+    dbg!(file);
+    let mut output_path = PathBuf::from(file);
+    output_path.set_extension("out");
+
+    assert!(file.ends_with(".rs"));
+    let normalized_name = {
+        let mut nn = file.to_lowercase();
+        nn.truncate(file.len() - 3);
+        nn
+    };
+
+    Command::new("rustc")
+        .arg("+nightly")
+        .arg(file)
+        .arg("-o")
+        .arg(&normalized_name)
+        .output()
+        .expect("Failed to compile program to native code");
+
+    #[cfg(unix)]
+    {
+        use std::os::unix::fs::PermissionsExt;
+        let normal_path = PathBuf::from(&normalized_name);
+        let mut perm = normal_path
+            .metadata()
+            .expect("native executable")
+            .permissions();
+        perm.set_mode(0o766);
+        fs::set_permissions(normal_path, perm).expect("set permissions");
+    }
+    let rs_module_name = {
+        let temp = PathBuf::from(&normalized_name);
+        temp.file_name().unwrap().to_string_lossy().to_string()
+    };
+
+    let result = Command::new(&normalized_name)
+        .output()
+        .expect("Failed to execute native program");
+    let wasm_out_name = format!("{}.wasm", &normalized_name);
+
+    Command::new("rustc")
+        .arg("+nightly")
+        .arg("--target=wasm32-wasi")
+        .arg(file)
+        .arg("-o")
+        .arg(&wasm_out_name)
+        .output()
+        .expect("Failed to compile program to native code");
+
+    let ignored = if ignores.contains(&rs_module_name) {
+        "\n#[ignore]"
+    } else {
+        ""
+    };
+
+    let contents = format!(
+        "#[test]{ignore}
+fn test_{rs_module_name}() {{
+    assert_wasi_output!(
+        \"../../{module_path}\",
+        \"{rs_module_name}\",
+        vec![],
+        \"../../{test_output_path}\"
+    );
+}}
+",
+        ignore = ignored,
+        module_path = wasm_out_name,
+        rs_module_name = rs_module_name,
+        test_output_path = format!("{}.out", normalized_name),
+    );
+    let rust_test_filepath = format!(
+        concat!(env!("CARGO_MANIFEST_DIR"), "/tests/{}.rs"),
+        normalized_name,
+    );
+    fs::write(&rust_test_filepath, contents.as_bytes()).expect("writing test file");
+    fs::write(&output_path, result.stdout).expect("writing output to file");
+
+    Some(rs_module_name)
+}
+
+pub fn build() {
+    let rust_test_modpath = concat!(env!("CARGO_MANIFEST_DIR"), "/tests/wasitests/mod.rs");
+
+    let mut modules: Vec<String> = Vec::new();
+
+    let ignores = read_ignore_list();
+    for entry in glob("wasitests/*.rs").unwrap() {
+        match entry {
+            Ok(path) => {
+                let test = path.to_str().unwrap();
+                if let Some(module_name) = compile(test, &ignores) {
+                    modules.push(module_name);
+                }
+            }
+            Err(e) => println!("{:?}", e),
+        }
+    }
+    modules.sort();
+    let mut modules: Vec<String> = modules.iter().map(|m| format!("mod {};", m)).collect();
+    assert!(modules.len() > 0, "Expected > 0 modules found");
+
+    modules.insert(0, BANNER.to_string());
+    modules.insert(1, "// The _common module is not autogenerated.  It provides common macros for the wasitests\n#[macro_use]\nmod _common;".to_string());
+    // We add an empty line
+    modules.push("".to_string());
+
+    let modfile: String = modules.join("\n");
+    let source = fs::read(&rust_test_modpath).unwrap();
+    // We only modify the mod file if has changed
+    if source != modfile.as_bytes() {
+        fs::write(&rust_test_modpath, modfile.as_bytes()).unwrap();
+    }
+}
+
+fn read_ignore_list() -> HashSet<String> {
+    let f = File::open("wasitests/ignores.txt").unwrap();
+    let f = BufReader::new(f);
+    f.lines()
+        .filter_map(Result::ok)
+        .map(|v| v.to_lowercase())
+        .collect()
+}

lib/wasi/tests/wasitest.rs

@@ -0,0 +1 @@
+mod wasitests;

lib/wasi/tests/wasitests/_common.rs

@@ -0,0 +1,61 @@
+macro_rules! assert_wasi_output {
+    ($file:expr, $name:expr, $args:expr, $expected:expr) => {{
+        use wasmer_dev_utils::stdio::StdioCapturer;
+        use wasmer_runtime_core::{backend::Compiler, Func};
+        use wasmer_wasi::generate_import_object;
+
+        #[cfg(feature = "clif")]
+        fn get_compiler() -> impl Compiler {
+            use wasmer_clif_backend::CraneliftCompiler;
+            CraneliftCompiler::new()
+        }
+
+        #[cfg(feature = "llvm")]
+        fn get_compiler() -> impl Compiler {
+            compile_error!("LLVM compiler not supported right now");
+        }
+
+        #[cfg(feature = "singlepass")]
+        fn get_compiler() -> impl Compiler {
+            use wasmer_singlepass_backend::SinglePassCompiler;
+            SinglePassCompiler::new()
+        }
+
+        #[cfg(not(any(feature = "llvm", feature = "clif", feature = "singlepass")))]
+        fn get_compiler() -> impl Compiler {
+            compile_error!("compiler not specified, activate a compiler via features");
+            unreachable!();
+        }
+
+        let wasm_bytes = include_bytes!($file);
+
+        let module = wasmer_runtime_core::compile_with(&wasm_bytes[..], &get_compiler())
+            .expect("WASM can't be compiled");
+
+        let import_object = generate_import_object(vec![], vec![], vec![".".to_string()]);
+
+        let 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();
+
+        let start: Func<(), ()> = instance
+            .func("_start")
+            .map_err(|e| format!("{:?}", e))
+            .expect("start function in wasi module");
+
+        let _result = start.call();
+
+        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
+        );
+    }};
+}

lib/wasi/tests/wasitests/create_dir.rs

@@ -0,0 +1,10 @@
+#[test]
+#[ignore]
+fn test_create_dir() {
+    assert_wasi_output!(
+        "../../wasitests/create_dir.wasm",
+        "create_dir",
+        vec![],
+        "../../wasitests/create_dir.out"
+    );
+}

lib/wasi/tests/wasitests/file_metadata.rs

@@ -0,0 +1,10 @@
+#[test]
+#[ignore]
+fn test_file_metadata() {
+    assert_wasi_output!(
+        "../../wasitests/file_metadata.wasm",
+        "file_metadata",
+        vec![],
+        "../../wasitests/file_metadata.out"
+    );
+}

lib/wasi/tests/wasitests/hello.rs

@@ -0,0 +1,9 @@
+#[test]
+fn test_hello() {
+    assert_wasi_output!(
+        "../../wasitests/hello.wasm",
+        "hello",
+        vec![],
+        "../../wasitests/hello.out"
+    );
+}

lib/wasi/tests/wasitests/mod.rs

@@ -0,0 +1,11 @@
+// !!! THIS IS A GENERATED FILE !!!
+// ANY MANUAL EDITS MAY BE OVERWRITTEN AT ANY TIME
+// Files autogenerated with cargo build (build/wasitests.rs).
+
+// The _common module is not autogenerated.  It provides common macros for the wasitests
+#[macro_use]
+mod _common;
+mod create_dir;
+mod file_metadata;
+mod hello;
+mod quine;

lib/wasi/tests/wasitests/quine.rs

@@ -0,0 +1,9 @@
+#[test]
+fn test_quine() {
+    assert_wasi_output!(
+        "../../wasitests/quine.wasm",
+        "quine",
+        vec![],
+        "../../wasitests/quine.out"
+    );
+}

lib/wasi/wasitests/create_dir.out

@@ -0,0 +1,5 @@
+Test file exists: false
+Dir exists: false
+Dir exists: false
+Dir exists: false
+Success

lib/wasi/wasitests/create_dir.rs

@@ -0,0 +1,37 @@
+use std::fs;
+use std::io::{Read, Seek, SeekFrom, Write};
+use std::path::*;
+
+fn main() {
+    let mut path = PathBuf::from("wasitests/testing/nested/directories");
+    let test_file = path.join("test.file");
+    fs::create_dir_all(&path).unwrap();
+    {
+        let mut file = fs::OpenOptions::new()
+            .read(true)
+            .write(true)
+            .truncate(true)
+            .create(true)
+            .open(&test_file)
+            .unwrap();
+
+        assert_eq!(file.write(b"hello").unwrap(), 5);
+
+        file.flush().unwrap();
+        file.seek(SeekFrom::Start(0)).unwrap();
+        let mut in_str = String::new();
+        file.read_to_string(&mut in_str).unwrap();
+        assert_eq!(&in_str, "hello");
+    }
+    fs::remove_file(&test_file).unwrap();
+    println!("Test file exists: {}", test_file.exists());
+    assert!(!test_file.exists());
+    for _ in 0..3 {
+        fs::remove_dir_all(&path).unwrap();
+        println!("Dir exists: {}", path.exists());
+        assert!(!path.exists());
+        path.pop();
+    }
+
+    println!("Success");
+}

lib/wasi/wasitests/file_metadata.out

@@ -0,0 +1,2 @@
+is dir: false
+file info: FileType(FileType { mode: 33188 }) 419 Ok(SystemTime { tv_sec: 1558132188, tv_nsec: 545288295 }) Ok(SystemTime { tv_sec: 1558132188, tv_nsec: 545243056 }) Ok(SystemTime { tv_sec: 1558132191, tv_nsec: 359031112 })

lib/wasi/wasitests/file_metadata.rs

@@ -0,0 +1,17 @@
+use std::fs;
+use std::io::Read;
+
+fn main() {
+    let mut this_file =
+        fs::File::open("wasitests/file_metadata.rs").expect("could not find src file");
+    let md = this_file.metadata().unwrap();
+    println!("is dir: {}", md.is_dir());
+    println!(
+        "file info: {:?} {} {:?} {:?} {:?}",
+        md.file_type(),
+        md.len(),
+        md.modified(),
+        md.created(),
+        md.accessed()
+    );
+}

lib/wasi/wasitests/hello.out

@@ -0,0 +1 @@
+Hello, world!

lib/wasi/wasitests/hello.rs

@@ -0,0 +1,3 @@
+fn main() {
+    println!("Hello, world!");
+}

lib/wasi/wasitests/ignores.txt

@@ -0,0 +1,2 @@
+file_metadata
+create_dir

lib/wasi/wasitests/quine.out

@@ -0,0 +1,11 @@
+use std::fs;
+use std::io::Read;
+
+fn main() {
+    let mut this_file = fs::File::open("wasitests/quine.rs").expect("could not find src file");
+    let md = this_file.metadata().unwrap();
+    let mut in_str = String::new();
+    this_file.read_to_string(&mut in_str).unwrap();
+    println!("{}", in_str);
+}
+

lib/wasi/wasitests/quine.rs

@@ -0,0 +1,10 @@
+use std::fs;
+use std::io::Read;
+
+fn main() {
+    let mut this_file = fs::File::open("wasitests/quine.rs").expect("could not find src file");
+    let md = this_file.metadata().unwrap();
+    let mut in_str = String::new();
+    this_file.read_to_string(&mut in_str).unwrap();
+    println!("{}", in_str);
+}