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// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
import { unitTest, assert, assertEquals } from "./test_util.ts";
unitTest(function blobString(): void {
const b1 = new Blob(["Hello World"]);
const str = "Test";
const b2 = new Blob([b1, str]);
assertEquals(b2.size, b1.size + str.length);
});
unitTest(function blobBuffer(): void {
const buffer = new ArrayBuffer(12);
const u8 = new Uint8Array(buffer);
const f1 = new Float32Array(buffer);
const b1 = new Blob([buffer, u8]);
assertEquals(b1.size, 2 * u8.length);
const b2 = new Blob([b1, f1]);
assertEquals(b2.size, 3 * u8.length);
});
unitTest(function blobSlice(): void {
const blob = new Blob(["Deno", "Foo"]);
const b1 = blob.slice(0, 3, "Text/HTML");
assert(b1 instanceof Blob);
assertEquals(b1.size, 3);
assertEquals(b1.type, "text/html");
const b2 = blob.slice(-1, 3);
assertEquals(b2.size, 0);
const b3 = blob.slice(100, 3);
assertEquals(b3.size, 0);
const b4 = blob.slice(0, 10);
assertEquals(b4.size, blob.size);
});
unitTest(function blobInvalidType(): void {
const blob = new Blob(["foo"], {
type: "\u0521",
});
assertEquals(blob.type, "");
});
unitTest(function blobShouldNotThrowError(): void {
let hasThrown = false;
try {
const options1: object = {
ending: "utf8",
hasOwnProperty: "hasOwnProperty",
};
const options2: object = Object.create(null);
new Blob(["Hello World"], options1);
new Blob(["Hello World"], options2);
} catch {
hasThrown = true;
}
assertEquals(hasThrown, false);
});
unitTest(function nativeEndLine(): void {
const options: object = {
ending: "native",
};
const blob = new Blob(["Hello\nWorld"], options);
assertEquals(blob.size, Deno.build.os === "win" ? 12 : 11);
});
// TODO(qti3e) Test the stored data in a Blob after implementing FileReader API.
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