feat(Int)

test/Int.test.js

@@ -0,0 +1,29 @@
+import { describe, expect, test } from "vitest";
+import { expectDataViewEqual, filledDataView, sizedDataView } from '.';
+import { Int, parse, serialize, sizeof } from "../src";
+
+describe(Int.name, () => {
+
+  const Type = Int(32, 'unsigned')
+  const type = 512
+  const type_dv = filledDataView([0x00, 0x00, 0x02, 0x00])
+
+  test('serialize', () => {
+    let actual = sizedDataView(3);
+    expect(() => serialize(actual, type, Type)).toThrow()
+
+    actual = sizedDataView(sizeof(Type))
+    serialize(actual, type, Type)
+
+    expectDataViewEqual(actual, type_dv)
+  })
+
+  test('parse', () => {
+    expect(parse(type_dv, Type)).toEqual(type)
+  })
+
+  test('serialize, overflow', () => {
+    expect(() => serialize(sizedDataView(1), 128, Int(8, 'signed'))).toThrow()
+    expect(() => serialize(sizedDataView(1), -129, Int(8, 'signed'))).toThrow()
+  })
+})