2020-01-02 15:13:47 -05:00
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// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
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2020-03-04 11:31:14 -05:00
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import { unitTest, assert, assertEquals } from "./test_util.ts";
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2018-09-14 08:45:50 -04:00
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2020-03-04 11:31:14 -05:00
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unitTest(function blobString(): void {
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2018-09-14 08:45:50 -04:00
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const b1 = new Blob(["Hello World"]);
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const str = "Test";
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const b2 = new Blob([b1, str]);
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2019-03-06 20:48:46 -05:00
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assertEquals(b2.size, b1.size + str.length);
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});
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2020-03-04 11:31:14 -05:00
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unitTest(function blobBuffer(): void {
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2018-09-14 08:45:50 -04:00
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const buffer = new ArrayBuffer(12);
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const u8 = new Uint8Array(buffer);
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const f1 = new Float32Array(buffer);
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const b1 = new Blob([buffer, u8]);
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2019-03-06 20:48:46 -05:00
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assertEquals(b1.size, 2 * u8.length);
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2018-09-14 08:45:50 -04:00
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const b2 = new Blob([b1, f1]);
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2019-03-06 20:48:46 -05:00
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assertEquals(b2.size, 3 * u8.length);
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});
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2020-03-04 11:31:14 -05:00
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unitTest(function blobSlice(): void {
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2018-09-14 08:45:50 -04:00
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const blob = new Blob(["Deno", "Foo"]);
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const b1 = blob.slice(0, 3, "Text/HTML");
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assert(b1 instanceof Blob);
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2019-03-06 20:48:46 -05:00
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assertEquals(b1.size, 3);
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assertEquals(b1.type, "text/html");
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2018-09-14 08:45:50 -04:00
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const b2 = blob.slice(-1, 3);
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2019-03-06 20:48:46 -05:00
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assertEquals(b2.size, 0);
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const b3 = blob.slice(100, 3);
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assertEquals(b3.size, 0);
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const b4 = blob.slice(0, 10);
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2019-03-06 20:48:46 -05:00
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assertEquals(b4.size, blob.size);
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2018-09-14 08:45:50 -04:00
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});
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2020-03-04 11:31:14 -05:00
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unitTest(function blobShouldNotThrowError(): void {
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2019-04-18 21:56:33 -04:00
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let hasThrown = false;
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try {
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const options1: object = {
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ending: "utf8",
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hasOwnProperty: "hasOwnProperty",
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};
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const options2: object = Object.create(null);
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new Blob(["Hello World"], options1);
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new Blob(["Hello World"], options2);
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} catch {
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hasThrown = true;
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}
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assertEquals(hasThrown, false);
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});
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2020-03-04 11:31:14 -05:00
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unitTest(function nativeEndLine(): void {
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const options: object = {
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ending: "native",
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};
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2019-09-07 12:27:18 -04:00
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const blob = new Blob(["Hello\nWorld"], options);
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2019-08-01 10:04:39 -04:00
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assertEquals(blob.size, Deno.build.os === "win" ? 12 : 11);
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});
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2018-09-14 08:45:50 -04:00
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// TODO(qti3e) Test the stored data in a Blob after implementing FileReader API.
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