279 lines
		
	
	
		
			9.7 KiB
		
	
	
	
		
			TypeScript
		
	
	
	
	
	
			
		
		
	
	
			279 lines
		
	
	
		
			9.7 KiB
		
	
	
	
		
			TypeScript
		
	
	
	
	
	
import test, { describe } from "node:test"
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import * as path from "./path"
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import assert from "node:assert"
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import { FullSlug, TransformOptions } from "./path"
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describe("typeguards", () => {
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  test("isSimpleSlug", () => {
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    assert(path.isSimpleSlug(""))
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    assert(path.isSimpleSlug("abc"))
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    assert(path.isSimpleSlug("abc/"))
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    assert(path.isSimpleSlug("notindex"))
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    assert(path.isSimpleSlug("notindex/def"))
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    assert(!path.isSimpleSlug("//"))
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    assert(!path.isSimpleSlug("index"))
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    assert(!path.isSimpleSlug("https://example.com"))
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    assert(!path.isSimpleSlug("/abc"))
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    assert(!path.isSimpleSlug("abc/index"))
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    assert(!path.isSimpleSlug("abc#anchor"))
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    assert(!path.isSimpleSlug("abc?query=1"))
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    assert(!path.isSimpleSlug("index.md"))
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    assert(!path.isSimpleSlug("index.html"))
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  })
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  test("isRelativeURL", () => {
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    assert(path.isRelativeURL("."))
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    assert(path.isRelativeURL(".."))
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    assert(path.isRelativeURL("./abc/def"))
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    assert(path.isRelativeURL("./abc/def#an-anchor"))
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    assert(path.isRelativeURL("./abc/def?query=1#an-anchor"))
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    assert(path.isRelativeURL("../abc/def"))
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    assert(path.isRelativeURL("./abc/def.pdf"))
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    assert(!path.isRelativeURL("abc"))
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    assert(!path.isRelativeURL("/abc/def"))
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    assert(!path.isRelativeURL(""))
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    assert(!path.isRelativeURL("./abc/def.html"))
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    assert(!path.isRelativeURL("./abc/def.md"))
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  })
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  test("isFullSlug", () => {
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    assert(path.isFullSlug("index"))
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    assert(path.isFullSlug("abc/def"))
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    assert(path.isFullSlug("html.energy"))
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    assert(path.isFullSlug("test.pdf"))
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    assert(!path.isFullSlug("."))
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    assert(!path.isFullSlug("./abc/def"))
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    assert(!path.isFullSlug("../abc/def"))
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    assert(!path.isFullSlug("abc/def#anchor"))
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    assert(!path.isFullSlug("abc/def?query=1"))
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    assert(!path.isFullSlug("note with spaces"))
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  })
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  test("isFilePath", () => {
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    assert(path.isFilePath("content/index.md"))
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    assert(path.isFilePath("content/test.png"))
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    assert(!path.isFilePath("../test.pdf"))
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    assert(!path.isFilePath("content/test"))
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    assert(!path.isFilePath("./content/test"))
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  })
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})
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describe("transforms", () => {
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  function asserts<Inp, Out>(
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    pairs: [string, string][],
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    transform: (inp: Inp) => Out,
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    checkPre: (x: any) => x is Inp,
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    checkPost: (x: any) => x is Out,
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  ) {
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    for (const [inp, expected] of pairs) {
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      assert(checkPre(inp), `${inp} wasn't the expected input type`)
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      const actual = transform(inp)
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      assert.strictEqual(
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        actual,
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        expected,
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        `after transforming ${inp}, '${actual}' was not '${expected}'`,
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      )
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      assert(checkPost(actual), `${actual} wasn't the expected output type`)
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    }
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  }
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  test("simplifySlug", () => {
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    asserts(
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      [
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        ["index", ""],
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        ["abc", "abc"],
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        ["abc/index", "abc/"],
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        ["abc/def", "abc/def"],
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      ],
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      path.simplifySlug,
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      path.isFullSlug,
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      path.isSimpleSlug,
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    )
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  })
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  test("slugifyFilePath", () => {
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    asserts(
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      [
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        ["content/index.md", "content/index"],
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        ["content/index.html", "content/index"],
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        ["content/_index.md", "content/index"],
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        ["/content/index.md", "content/index"],
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        ["content/cool.png", "content/cool.png"],
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        ["index.md", "index"],
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        ["test.mp4", "test.mp4"],
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        ["note with spaces.md", "note-with-spaces"],
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      ],
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      path.slugifyFilePath,
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      path.isFilePath,
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      path.isFullSlug,
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    )
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  })
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  test("transformInternalLink", () => {
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    asserts(
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      [
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        ["", "."],
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        [".", "."],
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        ["./", "./"],
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        ["./index", "./"],
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        ["./index#abc", "./#abc"],
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        ["./index.html", "./"],
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        ["./index.md", "./"],
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        ["./index.css", "./index.css"],
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        ["content", "./content"],
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        ["content/test.md", "./content/test"],
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        ["content/test.pdf", "./content/test.pdf"],
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        ["./content/test.md", "./content/test"],
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        ["../content/test.md", "../content/test"],
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        ["tags/", "./tags/"],
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        ["/tags/", "./tags/"],
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        ["content/with spaces", "./content/with-spaces"],
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        ["content/with spaces/index", "./content/with-spaces/"],
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        ["content/with spaces#and Anchor!", "./content/with-spaces#and-anchor"],
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      ],
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      path.transformInternalLink,
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      (_x: string): _x is string => true,
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      path.isRelativeURL,
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    )
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  })
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  test("pathToRoot", () => {
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    asserts(
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      [
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        ["index", "."],
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        ["abc", "."],
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        ["abc/def", ".."],
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        ["abc/def/ghi", "../.."],
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        ["abc/def/index", "../.."],
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      ],
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      path.pathToRoot,
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      path.isFullSlug,
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      path.isRelativeURL,
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    )
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  })
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})
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describe("link strategies", () => {
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  const allSlugs = [
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    "a/b/c",
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    "a/b/d",
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    "a/b/index",
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    "e/f",
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    "e/g/h",
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    "index",
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    "a/test.png",
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  ] as FullSlug[]
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  describe("absolute", () => {
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    const opts: TransformOptions = {
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      strategy: "absolute",
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      allSlugs,
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    }
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    test("from a/b/c", () => {
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      const cur = "a/b/c" as FullSlug
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      assert.strictEqual(path.transformLink(cur, "a/b/d", opts), "../../a/b/d")
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      assert.strictEqual(path.transformLink(cur, "a/b/index", opts), "../../a/b/")
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      assert.strictEqual(path.transformLink(cur, "e/f", opts), "../../e/f")
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      assert.strictEqual(path.transformLink(cur, "e/g/h", opts), "../../e/g/h")
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      assert.strictEqual(path.transformLink(cur, "index", opts), "../../")
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      assert.strictEqual(path.transformLink(cur, "index.png", opts), "../../index.png")
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      assert.strictEqual(path.transformLink(cur, "index#abc", opts), "../../#abc")
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      assert.strictEqual(path.transformLink(cur, "tag/test", opts), "../../tag/test")
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      assert.strictEqual(path.transformLink(cur, "a/b/c#test", opts), "../../a/b/c#test")
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      assert.strictEqual(path.transformLink(cur, "a/test.png", opts), "../../a/test.png")
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    })
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    test("from a/b/index", () => {
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      const cur = "a/b/index" as FullSlug
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      assert.strictEqual(path.transformLink(cur, "a/b/d", opts), "../../a/b/d")
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      assert.strictEqual(path.transformLink(cur, "a/b", opts), "../../a/b")
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      assert.strictEqual(path.transformLink(cur, "index", opts), "../../")
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    })
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    test("from index", () => {
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      const cur = "index" as FullSlug
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      assert.strictEqual(path.transformLink(cur, "index", opts), "./")
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      assert.strictEqual(path.transformLink(cur, "a/b/c", opts), "./a/b/c")
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      assert.strictEqual(path.transformLink(cur, "a/b/index", opts), "./a/b/")
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    })
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  })
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  describe("shortest", () => {
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    const opts: TransformOptions = {
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      strategy: "shortest",
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      allSlugs,
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    }
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    test("from a/b/c", () => {
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      const cur = "a/b/c" as FullSlug
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      assert.strictEqual(path.transformLink(cur, "d", opts), "../../a/b/d")
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      assert.strictEqual(path.transformLink(cur, "h", opts), "../../e/g/h")
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      assert.strictEqual(path.transformLink(cur, "a/b/index", opts), "../../a/b/")
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      assert.strictEqual(path.transformLink(cur, "a/b/index.png", opts), "../../a/b/index.png")
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      assert.strictEqual(path.transformLink(cur, "a/b/index#abc", opts), "../../a/b/#abc")
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      assert.strictEqual(path.transformLink(cur, "index", opts), "../../")
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      assert.strictEqual(path.transformLink(cur, "index.png", opts), "../../index.png")
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      assert.strictEqual(path.transformLink(cur, "test.png", opts), "../../a/test.png")
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      assert.strictEqual(path.transformLink(cur, "index#abc", opts), "../../#abc")
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    })
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    test("from a/b/index", () => {
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      const cur = "a/b/index" as FullSlug
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      assert.strictEqual(path.transformLink(cur, "d", opts), "../../a/b/d")
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      assert.strictEqual(path.transformLink(cur, "h", opts), "../../e/g/h")
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      assert.strictEqual(path.transformLink(cur, "a/b/index", opts), "../../a/b/")
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      assert.strictEqual(path.transformLink(cur, "index", opts), "../../")
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    })
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    test("from index", () => {
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      const cur = "index" as FullSlug
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      assert.strictEqual(path.transformLink(cur, "d", opts), "./a/b/d")
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      assert.strictEqual(path.transformLink(cur, "h", opts), "./e/g/h")
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      assert.strictEqual(path.transformLink(cur, "a/b/index", opts), "./a/b/")
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      assert.strictEqual(path.transformLink(cur, "index", opts), "./")
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    })
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  })
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  describe("relative", () => {
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    const opts: TransformOptions = {
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      strategy: "relative",
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      allSlugs,
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    }
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    test("from a/b/c", () => {
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      const cur = "a/b/c" as FullSlug
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      assert.strictEqual(path.transformLink(cur, "d", opts), "./d")
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      assert.strictEqual(path.transformLink(cur, "index", opts), "./")
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      assert.strictEqual(path.transformLink(cur, "../../../index", opts), "../../../")
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      assert.strictEqual(path.transformLink(cur, "../../../index.png", opts), "../../../index.png")
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      assert.strictEqual(path.transformLink(cur, "../../../index#abc", opts), "../../../#abc")
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      assert.strictEqual(path.transformLink(cur, "../../../", opts), "../../../")
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      assert.strictEqual(
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        path.transformLink(cur, "../../../a/test.png", opts),
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        "../../../a/test.png",
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      )
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      assert.strictEqual(path.transformLink(cur, "../../../e/g/h", opts), "../../../e/g/h")
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      assert.strictEqual(path.transformLink(cur, "../../../e/g/h", opts), "../../../e/g/h")
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      assert.strictEqual(path.transformLink(cur, "../../../e/g/h#abc", opts), "../../../e/g/h#abc")
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    })
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    test("from a/b/index", () => {
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      const cur = "a/b/index" as FullSlug
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      assert.strictEqual(path.transformLink(cur, "../../index", opts), "../../")
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      assert.strictEqual(path.transformLink(cur, "../../", opts), "../../")
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      assert.strictEqual(path.transformLink(cur, "../../e/g/h", opts), "../../e/g/h")
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      assert.strictEqual(path.transformLink(cur, "c", opts), "./c")
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    })
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    test("from index", () => {
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      const cur = "index" as FullSlug
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      assert.strictEqual(path.transformLink(cur, "e/g/h", opts), "./e/g/h")
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      assert.strictEqual(path.transformLink(cur, "a/b/index", opts), "./a/b/")
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    })
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  })
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})
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