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// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
import { findIndex, findLastIndex, equal, hasPrefix, repeat } from "./mod.ts";
import { test } from "../testing/mod.ts";
import { assertEquals, assertThrows } from "../testing/asserts.ts";
test(function bytesfindIndex1(): void {
const i = findIndex(
new Uint8Array([1, 2, 0, 1, 2, 0, 1, 2, 0, 1, 3]),
new Uint8Array([0, 1, 2])
);
assertEquals(i, 2);
});
test(function bytesfindIndex2(): void {
const i = findIndex(new Uint8Array([0, 0, 1]), new Uint8Array([0, 1]));
assertEquals(i, 1);
});
test(function bytesfindLastIndex1(): void {
const i = findLastIndex(
new Uint8Array([0, 1, 2, 0, 1, 2, 0, 1, 3]),
new Uint8Array([0, 1, 2])
);
assertEquals(i, 3);
});
test(function bytesfindLastIndex2(): void {
const i = findLastIndex(new Uint8Array([0, 1, 1]), new Uint8Array([0, 1]));
assertEquals(i, 0);
});
test(function bytesBytesequal(): void {
const v = equal(new Uint8Array([0, 1, 2, 3]), new Uint8Array([0, 1, 2, 3]));
assertEquals(v, true);
});
test(function byteshasPrefix(): void {
const v = hasPrefix(new Uint8Array([0, 1, 2]), new Uint8Array([0, 1]));
assertEquals(v, true);
});
test(function bytesrepeat(): void {
// input / output / count / error message
const repeatTestCase = [
["", "", 0],
["", "", 1],
["", "", 1.1, "bytes: repeat count must be an integer"],
["", "", 2],
["", "", 0],
["-", "", 0],
["-", "-", -1, "bytes: negative repeat count"],
["-", "----------", 10],
["abc ", "abc abc abc ", 3]
];
for (const [input, output, count, errMsg] of repeatTestCase) {
if (errMsg) {
assertThrows(
(): void => {
repeat(new TextEncoder().encode(input as string), count as number);
},
Error,
errMsg as string
);
} else {
const newBytes = repeat(
new TextEncoder().encode(input as string),
count as number
);
assertEquals(new TextDecoder().decode(newBytes), output);
}
}
});
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