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import { generateImage, themeList } from "./mod.ts";import { assertEquals, assertNotEquals, assertRejects, path } from "./deps.ts";import { readAll } from "https://deno.land/std@0.153.0/streams/conversion.ts";
function assertImage(data: Uint8Array) {  const header = data.slice(0, 8);  const pngHeader = new Uint8Array([    0x89,    0x50,    0x4e,    0x47,    0x0d,    0x0a,    0x1a,    0x0a,  ]);  assertEquals(header, pngHeader);}
Deno.test({  name: "get theme list",  fn: () => {    const got = themeList();    assertNotEquals(got.length, 0);  },});
Deno.test({  name: "generate image",  fn: async () => {    const code = `package main
import {  "fmt"}
func main() {    fmt.Println("Hello World")}`;    const r = await generateImage(code, "go");    const got = await readAll(r);    assertImage(got);  },});
Deno.test({  name: "generate image with options",  fn: async () => {    const code = new TextDecoder().decode(      await Deno.readFile(path.join("testdata", "main.rs")),    );    const r = await generateImage(code, "rs", {      no_line_number: true,      no_round_corner: false,      no_window_controls: true,      background_color: "#CCCCCC",      highlight_lines: "5-7",      line_offset: 1,      line_pad: 2,      pad_horiz: 50,      pad_vert: 50,      shadow_blur_radius: 10.5,      shadow_offset_x: 10,      shadow_offset_y: 10,      shadow_color: "#003399",      tab_width: 10,      theme: "Solarized (dark)",    });    const got = await readAll(r);    assertImage(got);  },});
Deno.test({  name: "invalid options",  fn: async () => {    await assertRejects(      async () => {        await generateImage("", "rs", { theme: "hoge" });      },      Error,      "unsupported theme",    );
    await assertRejects(      async () => {        await generateImage("", "rs", { background_color: "hoge" });      },      Error,      "cannot generate image: invalid color",    );
    await assertRejects(      async () => {        await generateImage("", "rs", { highlight_lines: "1;" });      },      Error,      "cannot parse integer from empty string",    );  },});