test(std/wasi): seperate test runner into a module (#7191)

1 files changed, 20 insertions, 0 deletions

diff --git a/std/wasi/snapshot_preview1_test_runner.ts b/std/wasi/snapshot_preview1_test_runner.ts
new file mode 100644
index 000000000..fb29f082e
--- /dev/null
+++ b/std/wasi/snapshot_preview1_test_runner.ts
@@ -0,0 +1,20 @@
+import Context from "./snapshot_preview1.ts";
+
+const options = JSON.parse(Deno.args[0]);
+const pathname = Deno.args[1];
+const binary = await Deno.readFile(pathname);
+const module = await WebAssembly.compile(binary);
+
+const context = new Context({
+  env: options.env,
+  args: [pathname].concat(options.args),
+  preopens: options.preopens,
+});
+
+const instance = new WebAssembly.Instance(module, {
+  wasi_snapshot_preview1: context.exports,
+});
+
+context.memory = instance.exports.memory;
+
+instance.exports._start();