wire env variables through test runner to TESTCONFIG

crates/test-programs/tests/wasm_tests/runtime.rs

@@ -28,6 +28,18 @@ pub fn instantiate(data: &[u8], bin_name: &str, workspace: Option<&Path>) -> any
             builder = builder.preopened_dir(preopen_dir, ".")?;
         }
 
+        #[cfg(windows)]
+        {
+            builder = builder
+                .env("ERRNO_MODE_WINDOWS", "1")?
+                .env("NO_DANGLING_SYMLINKS", "1")?
+                .env("NO_FD_ALLOCATE", "1")?;
+        }
+        #[cfg(unix)]
+        {
+            builder = builder.env("ERRNO_MODE_UNIX", "1")?;
+        }
+
         let snapshot1 = wasi_c2_wasmtime::Wasi::new(&store, builder.build()?);
 
         let mut linker = Linker::new(&store);

crates/test-programs/wasi-tests/src/config.rs

@@ -5,15 +5,15 @@ pub struct TestConfig {
 }
 
 enum ErrnoMode {
-    Linux,
+    Unix,
     Windows,
     Permissive,
 }
 
 impl TestConfig {
     pub fn from_env() -> Self {
-        let errno_mode = if std::env::var("ERRNO_MODE_LINUX").is_ok() {
-            ErrnoMode::Linux
+        let errno_mode = if std::env::var("ERRNO_MODE_UNIX").is_ok() {
+            ErrnoMode::Unix
         } else if std::env::var("ERRNO_MODE_WINDOWS").is_ok() {
             ErrnoMode::Windows
         } else {
@@ -27,9 +27,9 @@ impl TestConfig {
             no_fd_allocate,
         }
     }
-    pub fn errno_expect_linux(&self) -> bool {
+    pub fn errno_expect_unix(&self) -> bool {
         match self.errno_mode {
-            ErrnoMode::Linux => true,
+            ErrnoMode::Unix => true,
             _ => false,
         }
     }

crates/test-programs/wasi-tests/src/lib.rs

@@ -80,9 +80,9 @@ macro_rules! assert_errno {
             assert_errno!(e, $($rest),+, $i);
         }
     };
-    ($s:expr, linux => $i:expr, $( $rest:expr ),+) => {
+    ($s:expr, unix => $i:expr, $( $rest:expr ),+) => {
         let e = $s;
-        if $crate::TESTCONFIG.errno_expect_linux() {
+        if $crate::TESTCONFIG.errno_expect_unix() {
             assert_errno!(e, $i);
         } else {
             assert_errno!(e, $($rest),+, $i);