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// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
import { assert, assertEquals, assertThrows } from "../../testing/asserts.ts";import { dirname, fromFileUrl, join, resolve } from "../../path/mod.ts";import { Format } from "./mod.ts";
const moduleDir = dirname(fromFileUrl(import.meta.url));const testdataDir = resolve(moduleDir, "testdata");
type ExtractTestData = {  title: string;  tags: string[];  "expanded-description": string;};type ExtractFn = (str: string) => {  attrs: ExtractTestData;  body: string;  frontMatter: string;};
export function resolveTestDataPath(filename: string): string {  return join(testdataDir, filename);}
export function runTestValidInputTests(  format: Format,  testFn: (str: string) => boolean,) {  const testdata = [    `---${format}\nname = 'deno'\n---\n`,    `= ${format} =\nname = 'deno'\n= ${format} =\n`,    `= ${format} =\nname = 'deno'\n= ${format} =\ndeno is awesome\n`,  ];
  // yaml is the default format, so it should be recognized without the format name  if (format === Format.YAML) {    testdata.push(`---\nname: deno\n---\n`);  }
  testdata.forEach((str) => {    assert(testFn(str));  });}
export function runTestInvalidInputTests(  format: Format,  testFn: (str: string) => boolean,) {  [    "",    "---",    `---${format}`,    `= ${format} =`,    "---\n",    `---${format}\n`,    `= ${format} =\n`,    `---\nasdasdasd`,  ].forEach((str) => {    assert(!testFn(str));  });}
export function runExtractTypeErrorTests(  format: Format,  extractFn: (str: string) => unknown,) {  [    "",    "---",    `---${format}`,    `= ${format} =`,    "---\n",    `---${format}\n`,    `= ${format} =\n`,    "---\nasdasdasd",  ].forEach((str) => {    assertThrows(() => extractFn(str), TypeError);  });}
export async function runExtractJSONTests(  extractFn: ExtractFn,) {  const str = await Deno.readTextFile(resolveTestDataPath("json.md"));  const content = extractFn(str);
  assert(content !== undefined);  assertEquals(    content.frontMatter,    `{  "title": "Three dashes followed by the format marks the spot",  "tags": [    "json",    "front-matter"  ],  "expanded-description": "with some ---json 🙃 crazy stuff in it"}`,  );  assertEquals(    content.body,    "don't break\n---\n{Also: \"---json this shouldn't be a problem\"}\n",  );  assertEquals(    content.attrs.title,    "Three dashes followed by the format marks the spot",  );  assertEquals(content.attrs.tags, ["json", "front-matter"]);  assertEquals(    content.attrs["expanded-description"],    "with some ---json 🙃 crazy stuff in it",  );}
export async function runExtractYAMLTests1(  extractFn: ExtractFn,) {  const str = await Deno.readTextFile(resolveTestDataPath("yaml1.md"));  const content = extractFn(str);
  assert(content !== undefined);  assertEquals(    content.frontMatter,    `title: Three dashes marks the spottags:  - yaml  - front-matter  - dashesexpanded-description: with some --- crazy stuff in it`,  );  assertEquals(    content.body,    "don't break\n---\nAlso this shouldn't be a problem\n",  );  assertEquals(content.attrs.title, "Three dashes marks the spot");  assertEquals(content.attrs.tags, ["yaml", "front-matter", "dashes"]);  assertEquals(    content.attrs["expanded-description"],    "with some --- crazy stuff in it",  );}
export async function runExtractYAMLTests2(  extractFn: ExtractFn,) {  const str = await Deno.readTextFile(resolveTestDataPath("yaml2.md"));  const content = extractFn(str);
  assert(content !== undefined);  assertEquals(    content.frontMatter,    `title: Three dashes marks the spottags:  - yaml  - front-matter  - dashesexpanded-description: with some --- crazy stuff in it`,  );  assertEquals(    content.body,    "don't break\n---\nAlso this shouldn't be a problem\n",  );  assertEquals(content.attrs.title, "Three dashes marks the spot");  assertEquals(content.attrs.tags, ["yaml", "front-matter", "dashes"]);  assertEquals(    content.attrs["expanded-description"],    "with some --- crazy stuff in it",  );}
export async function runExtractTOMLTests(  extractFn: ExtractFn,) {  const str = await Deno.readTextFile(resolveTestDataPath("toml.md"));  const content = extractFn(str);
  assert(content !== undefined);  assertEquals(    content.frontMatter,    `title = 'Three dashes followed by the format marks the spot'tags = ['toml', 'front-matter']'expanded-description' = 'with some ---toml 👌 crazy stuff in it'`,  );  assertEquals(    content.body,    "don't break\n---\nAlso = '---toml this shouldn't be a problem'\n",  );  assertEquals(    content.attrs.title,    "Three dashes followed by the format marks the spot",  );  assertEquals(content.attrs.tags, ["toml", "front-matter"]);  assertEquals(    content.attrs["expanded-description"],    "with some ---toml 👌 crazy stuff in it",  );}