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row_padding_test.ts
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row_padding_test.ts
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// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
import { getRowPadding, resliceBufferWithPadding } from "./row_padding.ts";
import { assertEquals } from "../assert/assert_equals.ts";
Deno.test("getRowPadding()", () => {
const { unpadded, padded } = getRowPadding(64);
assertEquals(unpadded, 256);
assertEquals(padded, 256);
});
Deno.test("getRowPadding() works for odd number smaller than COPY_BYTES_PER_ROW_ALIGNMENT", () => {
const { unpadded, padded } = getRowPadding(5);
assertEquals(unpadded, 20);
assertEquals(padded, 256);
});
Deno.test("getRowPadding() works for odd number larger than COPY_BYTES_PER_ROW_ALIGNMENT", () => {
const { unpadded, padded } = getRowPadding(329);
assertEquals(unpadded, 1316);
assertEquals(padded, 1536);
});
Deno.test("getRowPadding() works for even number smaller than COPY_BYTES_PER_ROW_ALIGNMENT", () => {
const { unpadded, padded } = getRowPadding(4);
assertEquals(unpadded, 16);
assertEquals(padded, 256);
});
Deno.test("getRowPadding() works for even number larger than COPY_BYTES_PER_ROW_ALIGNMENT", () => {
const { unpadded, padded } = getRowPadding(4024);
assertEquals(unpadded, 16096);
assertEquals(padded, 16128);
});
Deno.test("resliceBufferWithPadding()", () => {
// deno-fmt-ignore
const input = new Uint8Array([
0, 255, 0, 255, 255, 0, 0, 255, 0, 255, 0, 255, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 255, 0, 0, 255, 255, 0, 0, 255, 255, 0, 0, 255, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0,
0]);
const buf = resliceBufferWithPadding(input, 3, 2);
assertEquals(
buf,
new Uint8Array([
0,
255,
0,
255,
255,
0,
0,
255,
0,
255,
0,
255,
255,
0,
0,
255,
255,
0,
0,
255,
255,
0,
0,
255,
]),
);
});