From 78177985adf3d6e36516f1506e834a63414d5882 Mon Sep 17 00:00:00 2001
From: Alexander O'Mara <me@alexomara.com>
Date: Wed, 13 Nov 2024 23:36:13 -0500
Subject: [PATCH] Test i32

---
 member/i32.test.ts | 114 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 114 insertions(+)
 create mode 100644 member/i32.test.ts

diff --git a/member/i32.test.ts b/member/i32.test.ts
new file mode 100644
index 0000000..3e18107
--- /dev/null
+++ b/member/i32.test.ts
@@ -0,0 +1,114 @@
+import { assertEquals } from '@std/assert';
+
+import { Struct } from '../struct.ts';
+import { memberI32, memberU32 } from './i32.ts';
+
+Deno.test('memberI32', () => {
+	class Test extends Struct {
+		declare public readonly ['constructor']: typeof Test;
+
+		declare public alpha: number;
+
+		declare public beta: number;
+
+		declare public gamma: number;
+
+		declare public delta: number;
+
+		public static override readonly BYTE_LENGTH: number = ((o) => {
+			o += memberI32(this, o, 'alpha');
+			o += memberI32(this, o, 'beta');
+			o += memberI32(this, o, 'gamma', true);
+			o += memberI32(this, o, 'delta', false);
+			return o;
+		})(super.BYTE_LENGTH);
+	}
+
+	assertEquals(Test.BYTE_LENGTH, 16);
+
+	const data = new Uint8Array(Test.BYTE_LENGTH);
+	const view = new DataView(data.buffer);
+	{
+		const test = new Test(data.buffer, 0, false);
+		test.alpha = 0x7fffffff;
+		test.beta = -2;
+		test.gamma = -3;
+		test.delta = -4;
+
+		assertEquals(test.alpha, 0x7fffffff);
+		assertEquals(test.beta, -2);
+		assertEquals(view.getInt32(0, false), 0x7fffffff);
+		assertEquals(view.getInt32(4, false), -2);
+		assertEquals(view.getInt32(8, true), -3);
+		assertEquals(view.getInt32(12, false), -4);
+	}
+	{
+		const test = new Test(data.buffer, 0, true);
+		test.alpha = 0x7fffffff;
+		test.beta = -2;
+		test.gamma = -3;
+		test.delta = -4;
+
+		assertEquals(test.alpha, 0x7fffffff);
+		assertEquals(test.beta, -2);
+		assertEquals(view.getInt32(0, true), 0x7fffffff);
+		assertEquals(view.getInt32(4, true), -2);
+		assertEquals(view.getInt32(8, true), -3);
+		assertEquals(view.getInt32(12, false), -4);
+	}
+});
+
+Deno.test('memberU32', () => {
+	class Test extends Struct {
+		declare public readonly ['constructor']: typeof Test;
+
+		declare public alpha: number;
+
+		declare public beta: number;
+
+		declare public gamma: number;
+
+		declare public delta: number;
+
+		public static override readonly BYTE_LENGTH: number = ((o) => {
+			o += memberU32(this, o, 'alpha');
+			o += memberU32(this, o, 'beta');
+			o += memberI32(this, o, 'gamma', true);
+			o += memberI32(this, o, 'delta', false);
+			return o;
+		})(super.BYTE_LENGTH);
+	}
+
+	assertEquals(Test.BYTE_LENGTH, 16);
+
+	const data = new Uint8Array(Test.BYTE_LENGTH);
+	const view = new DataView(data.buffer);
+	{
+		const test = new Test(data.buffer, 0, false);
+		test.alpha = 0x7fffffff;
+		test.beta = 0xfffffffe;
+		test.gamma = 0xfffffffd;
+		test.delta = 0xfffffffc;
+
+		assertEquals(test.alpha, 0x7fffffff);
+		assertEquals(test.beta, 0xfffffffe);
+		assertEquals(view.getUint32(0, false), 0x7fffffff);
+		assertEquals(view.getUint32(4, false), 0xfffffffe);
+		assertEquals(view.getUint32(8, true), 0xfffffffd);
+		assertEquals(view.getUint32(12, false), 0xfffffffc);
+	}
+	{
+		const test = new Test(data.buffer, 0, true);
+		test.alpha = 0x7fffffff;
+		test.beta = 0xfffffffe;
+		test.gamma = 0xfffffffd;
+		test.delta = 0xfffffffc;
+
+		assertEquals(test.alpha, 0x7fffffff);
+		assertEquals(test.beta, 0xfffffffe);
+		assertEquals(view.getUint32(0, true), 0x7fffffff);
+		assertEquals(view.getUint32(4, true), 0xfffffffe);
+		assertEquals(view.getUint32(8, true), 0xfffffffd);
+		assertEquals(view.getUint32(12, false), 0xfffffffc);
+	}
+});