From 9f49f384222fb03ea50ba6fd77e39b300e85ebac Mon Sep 17 00:00:00 2001
From: Ajani Bilby <11359344+AjaniBilby@users.noreply.github.com>
Date: Thu, 18 Apr 2024 14:12:39 +1000
Subject: [PATCH] +boxed value test

---
 tests/e2e/compiler/box.test.ts | 73 ++++++++++++++++++++++++++++++++++
 1 file changed, 73 insertions(+)
 create mode 100644 tests/e2e/compiler/box.test.ts

diff --git a/tests/e2e/compiler/box.test.ts b/tests/e2e/compiler/box.test.ts
new file mode 100644
index 0000000..3af7923
--- /dev/null
+++ b/tests/e2e/compiler/box.test.ts
@@ -0,0 +1,73 @@
+/// <reference lib="deno.ns" />
+import { fail, assertNotEquals, assert } from "https://deno.land/std@0.201.0/assert/mod.ts";
+
+import * as CompilerFunc from "~/compiler/function.ts";
+import Package from "~/compiler/package.ts";
+import Project from "~/compiler/project.ts";
+import { FuncRef } from "~/wasm/funcRef.ts";
+
+const source = `
+struct Box {
+	value: i32;
+}
+
+external import {
+	fn receive(box: Box): none;
+	fn send(value: i32): none;
+} from "node";
+
+fn main(): none {
+	let box: Box = [ none ];
+	receive(box);
+	send(box.value);
+
+	return;
+}`;
+
+Deno.test(`Import test`, async () => {
+	const project = new Project();
+	const mainPck = new Package(project, "./");
+	const mainFile = mainPck.importRaw(source);
+
+	const mainFunc = mainFile.namespace["main"];
+	assert(mainFunc instanceof CompilerFunc.default, "Missing main function");
+	mainFunc.compile();
+	assertNotEquals(mainFunc.ref, null, "Main function hasn't compiled");
+	project.module.exportFunction("_start", mainFunc.ref as FuncRef);
+
+	let memory: WebAssembly.Memory;
+	let next = 0;
+	function receive(ptr: number) {
+		next = Math.floor(Math.random()*65536);
+
+		const memoryArray = new Int32Array(memory.buffer);
+		memoryArray[ptr/4] = next;
+
+		return;
+	}
+
+	let transmit = 0;
+	function send(value: number) {
+		assert(value === next, "Value miss-match");
+		transmit++;
+	}
+
+	const wasmModule = new WebAssembly.Module(project.module.toBinary());
+	const instance = await WebAssembly.instantiate(wasmModule, {
+		node: { receive, send }
+	});
+	const exports = instance.exports;
+
+	assert(exports.memory instanceof WebAssembly.Memory, `Expected "memory" to be exported`);
+	memory = exports.memory;
+
+	// Call the _start function
+	let main: () => number = typeof exports._start === "function"
+		? exports._start as any
+		: fail(`Expected _start to be a function`);
+
+	for (let i=0; i<10; i++) {
+		main();
+	}
+	assert(transmit === 10, "Did not receive all values back");
+});
\ No newline at end of file