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import { readFile, readFileSync } from "./fs.ts";
import { test } from "../testing/mod.ts";
import * as path from "../path/mod.ts";
import { assertEquals, assert } from "../testing/asserts.ts";
const testData = path.resolve(path.join("node", "testdata", "hello.txt"));
// Need to convert to promises, otherwise test() won't report error correctly.
test(async function readFileSuccess() {
const data = await new Promise((res, rej) => {
readFile(testData, (err, data) => {
if (err) {
rej(err);
}
res(data);
});
});
assert(data instanceof Uint8Array);
assertEquals(new TextDecoder().decode(data as Uint8Array), "hello world");
});
test(async function readFileEncodeUtf8Success() {
const data = await new Promise((res, rej) => {
readFile(testData, { encoding: "utf8" }, (err, data) => {
if (err) {
rej(err);
}
res(data);
});
});
assertEquals(typeof data, "string");
assertEquals(data as string, "hello world");
});
test(function readFileSyncSuccess() {
const data = readFileSync(testData);
assert(data instanceof Uint8Array);
assertEquals(new TextDecoder().decode(data as Uint8Array), "hello world");
});
test(function readFileEncodeUtf8Success() {
const data = readFileSync(testData, { encoding: "utf8" });
assertEquals(typeof data, "string");
assertEquals(data as string, "hello world");
});
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