import test, { describe, beforeEach } from "node:test"
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import assert from "node:assert"
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import { FileTrieNode } from "./fileTrie"
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import { FullSlug } from "./path"
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interface TestData {
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title: string
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slug: string
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filePath: string
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}
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describe("FileTrie", () => {
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let trie: FileTrieNode<TestData>
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beforeEach(() => {
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trie = new FileTrieNode<TestData>([])
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})
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describe("constructor", () => {
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test("should create an empty trie", () => {
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assert.deepStrictEqual(trie.children, [])
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assert.strictEqual(trie.slug, "")
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assert.strictEqual(trie.displayName, "")
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assert.strictEqual(trie.data, null)
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})
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test("should set displayName from data title", () => {
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const data = {
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title: "Test Title",
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slug: "test",
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filePath: "test.md",
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}
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trie.add(data)
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assert.strictEqual(trie.children[0].displayName, "Test Title")
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})
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test("should be able to set displayName", () => {
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const data = {
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title: "Test Title",
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slug: "test",
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filePath: "test.md",
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}
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trie.add(data)
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trie.children[0].displayName = "Modified"
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assert.strictEqual(trie.children[0].displayName, "Modified")
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})
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})
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describe("add", () => {
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test("should add a file at root level", () => {
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const data = {
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title: "Test",
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slug: "test",
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filePath: "test.md",
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}
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trie.add(data)
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assert.strictEqual(trie.children.length, 1)
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assert.strictEqual(trie.children[0].slug, "test")
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assert.strictEqual(trie.children[0].data, data)
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})
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test("should handle index files", () => {
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const data = {
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title: "Index",
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slug: "index",
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filePath: "index.md",
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}
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trie.add(data)
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assert.strictEqual(trie.data, data)
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assert.strictEqual(trie.children.length, 0)
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})
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test("should add nested files", () => {
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const data1 = {
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title: "Nested",
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slug: "folder/test",
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filePath: "folder/test.md",
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}
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const data2 = {
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title: "Really nested index",
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slug: "a/b/c/index",
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filePath: "a/b/c/index.md",
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}
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trie.add(data1)
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trie.add(data2)
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assert.strictEqual(trie.children.length, 2)
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assert.strictEqual(trie.children[0].slug, "folder/index")
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assert.strictEqual(trie.children[0].children.length, 1)
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assert.strictEqual(trie.children[0].children[0].slug, "folder/test")
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assert.strictEqual(trie.children[0].children[0].data, data1)
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assert.strictEqual(trie.children[1].slug, "a/index")
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assert.strictEqual(trie.children[1].children.length, 1)
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assert.strictEqual(trie.children[1].data, null)
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assert.strictEqual(trie.children[1].children[0].slug, "a/b/index")
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assert.strictEqual(trie.children[1].children[0].children.length, 1)
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assert.strictEqual(trie.children[1].children[0].data, null)
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assert.strictEqual(trie.children[1].children[0].children[0].slug, "a/b/c/index")
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assert.strictEqual(trie.children[1].children[0].children[0].data, data2)
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assert.strictEqual(trie.children[1].children[0].children[0].children.length, 0)
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})
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})
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describe("filter", () => {
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test("should filter nodes based on condition", () => {
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const data1 = { title: "Test1", slug: "test1", filePath: "test1.md" }
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const data2 = { title: "Test2", slug: "test2", filePath: "test2.md" }
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trie.add(data1)
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trie.add(data2)
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trie.filter((node) => node.slug !== "test1")
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assert.strictEqual(trie.children.length, 1)
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assert.strictEqual(trie.children[0].slug, "test2")
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})
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})
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describe("map", () => {
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test("should apply function to all nodes", () => {
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const data1 = { title: "Test1", slug: "test1", filePath: "test1.md" }
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const data2 = { title: "Test2", slug: "test2", filePath: "test2.md" }
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trie.add(data1)
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trie.add(data2)
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trie.map((node) => {
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if (node.data) {
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node.data.title = "Modified"
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}
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})
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assert.strictEqual(trie.children[0].displayName, "Modified")
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assert.strictEqual(trie.children[1].displayName, "Modified")
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})
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test("map over folders should work", () => {
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const data1 = { title: "Test1", slug: "test1", filePath: "test1.md" }
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const data2 = {
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title: "Test2",
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slug: "a/b-with-space/test2",
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filePath: "a/b with space/test2.md",
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}
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trie.add(data1)
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trie.add(data2)
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trie.map((node) => {
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if (node.isFolder) {
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node.displayName = `Folder: ${node.displayName}`
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} else {
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node.displayName = `File: ${node.displayName}`
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}
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})
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assert.strictEqual(trie.children[0].displayName, "File: Test1")
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assert.strictEqual(trie.children[1].displayName, "Folder: a")
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assert.strictEqual(trie.children[1].children[0].displayName, "Folder: b with space")
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assert.strictEqual(trie.children[1].children[0].children[0].displayName, "File: Test2")
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})
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})
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describe("entries", () => {
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test("should return all entries", () => {
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const data1 = { title: "Test1", slug: "test1", filePath: "test1.md" }
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const data2 = {
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title: "Test2",
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slug: "a/b-with-space/test2",
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filePath: "a/b with space/test2.md",
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}
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trie.add(data1)
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trie.add(data2)
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const entries = trie.entries()
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assert.deepStrictEqual(
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entries.map(([path, node]) => [path, node.data]),
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[
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["index", trie.data],
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["test1", data1],
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["a/index", null],
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["a/b-with-space/index", null],
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["a/b-with-space/test2", data2],
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],
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)
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})
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})
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describe("fromEntries", () => {
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test("nested", () => {
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const trie = FileTrieNode.fromEntries([
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["index" as FullSlug, { title: "Root", slug: "index", filePath: "index.md" }],
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[
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"folder/file1" as FullSlug,
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{ title: "File 1", slug: "folder/file1", filePath: "folder/file1.md" },
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],
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[
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"folder/index" as FullSlug,
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{ title: "Folder Index", slug: "folder/index", filePath: "folder/index.md" },
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],
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[
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"folder/file2" as FullSlug,
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{ title: "File 2", slug: "folder/file2", filePath: "folder/file2.md" },
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],
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[
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"folder/folder2/index" as FullSlug,
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{
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title: "Subfolder Index",
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slug: "folder/folder2/index",
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filePath: "folder/folder2/index.md",
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},
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],
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])
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assert.strictEqual(trie.children.length, 1)
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assert.strictEqual(trie.children[0].slug, "folder/index")
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assert.strictEqual(trie.children[0].children.length, 3)
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assert.strictEqual(trie.children[0].children[0].slug, "folder/file1")
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assert.strictEqual(trie.children[0].children[1].slug, "folder/file2")
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assert.strictEqual(trie.children[0].children[2].slug, "folder/folder2/index")
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assert.strictEqual(trie.children[0].children[2].children.length, 0)
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})
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})
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describe("findNode", () => {
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test("should find root node with empty path", () => {
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const data = { title: "Root", slug: "index", filePath: "index.md" }
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trie.add(data)
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const found = trie.findNode([])
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assert.strictEqual(found, trie)
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})
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test("should find node at first level", () => {
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const data = { title: "Test", slug: "test", filePath: "test.md" }
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trie.add(data)
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const found = trie.findNode(["test"])
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assert.strictEqual(found?.data, data)
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})
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test("should find nested node", () => {
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const data = {
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title: "Nested",
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slug: "folder/subfolder/test",
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filePath: "folder/subfolder/test.md",
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}
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trie.add(data)
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const found = trie.findNode(["folder", "subfolder", "test"])
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assert.strictEqual(found?.data, data)
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// should find the folder and subfolder indexes too
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assert.strictEqual(
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trie.findNode(["folder", "subfolder", "index"]),
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trie.children[0].children[0],
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)
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assert.strictEqual(trie.findNode(["folder", "index"]), trie.children[0])
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})
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test("should return undefined for non-existent path", () => {
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const data = { title: "Test", slug: "test", filePath: "test.md" }
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trie.add(data)
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const found = trie.findNode(["nonexistent"])
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assert.strictEqual(found, undefined)
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})
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test("should return undefined for partial path", () => {
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const data = {
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title: "Nested",
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slug: "folder/subfolder/test",
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filePath: "folder/subfolder/test.md",
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}
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trie.add(data)
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const found = trie.findNode(["folder"])
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assert.strictEqual(found?.data, null)
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})
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})
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describe("getFolderPaths", () => {
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test("should return all folder paths", () => {
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const data1 = {
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title: "Root",
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slug: "index",
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filePath: "index.md",
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}
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const data2 = {
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title: "Test",
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slug: "folder/subfolder/test",
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filePath: "folder/subfolder/test.md",
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}
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const data3 = {
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title: "Folder Index",
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slug: "abc/index",
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filePath: "abc/index.md",
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}
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trie.add(data1)
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trie.add(data2)
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trie.add(data3)
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const paths = trie.getFolderPaths()
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assert.deepStrictEqual(paths, [
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"index",
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"folder/index",
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"folder/subfolder/index",
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"abc/index",
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])
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})
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})
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describe("sort", () => {
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test("should sort nodes according to sort function", () => {
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const data1 = { title: "A", slug: "a", filePath: "a.md" }
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const data2 = { title: "B", slug: "b", filePath: "b.md" }
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const data3 = { title: "C", slug: "c", filePath: "c.md" }
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trie.add(data3)
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trie.add(data1)
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trie.add(data2)
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trie.sort((a, b) => a.slug.localeCompare(b.slug))
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assert.deepStrictEqual(
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trie.children.map((n) => n.slug),
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["a", "b", "c"],
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)
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})
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})
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describe("pathToNode", () => {
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test("should return root node for empty path", () => {
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const data = { title: "Root", slug: "index", filePath: "index.md" }
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trie.add(data)
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const path = trie.ancestryChain([])
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assert.deepStrictEqual(path, [trie])
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})
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test("should return root node for index path", () => {
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const data = { title: "Root", slug: "index", filePath: "index.md" }
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trie.add(data)
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const path = trie.ancestryChain(["index"])
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assert.deepStrictEqual(path, [trie])
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})
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test("should return path to first level node", () => {
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const data = { title: "Test", slug: "test", filePath: "test.md" }
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trie.add(data)
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const path = trie.ancestryChain(["test"])
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assert.deepStrictEqual(path, [trie, trie.children[0]])
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})
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test("should return path to nested node", () => {
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const data = {
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title: "Nested",
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slug: "folder/subfolder/test",
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filePath: "folder/subfolder/test.md",
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}
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trie.add(data)
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const path = trie.ancestryChain(["folder", "subfolder", "test"])
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assert.deepStrictEqual(path, [
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trie,
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trie.children[0],
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trie.children[0].children[0],
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trie.children[0].children[0].children[0],
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])
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})
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test("should return undefined for non-existent path", () => {
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const data = { title: "Test", slug: "test", filePath: "test.md" }
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trie.add(data)
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const path = trie.ancestryChain(["nonexistent"])
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assert.strictEqual(path, undefined)
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})
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test("should return file data for intermediate folders", () => {
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const data1 = {
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title: "Root",
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slug: "index",
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filePath: "index.md",
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}
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const data2 = {
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title: "Test",
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slug: "folder/subfolder/test",
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filePath: "folder/subfolder/test.md",
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}
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const data3 = {
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title: "Folder Index",
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slug: "folder/index",
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filePath: "folder/index.md",
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}
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trie.add(data1)
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trie.add(data2)
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trie.add(data3)
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const path = trie.ancestryChain(["folder", "subfolder"])
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assert.deepStrictEqual(path, [trie, trie.children[0], trie.children[0].children[0]])
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assert.strictEqual(path[1].data, data3)
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})
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test("should return path for partial path", () => {
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const data = {
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title: "Nested",
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slug: "folder/subfolder/test",
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filePath: "folder/subfolder/test.md",
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}
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trie.add(data)
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const path = trie.ancestryChain(["folder"])
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assert.deepStrictEqual(path, [trie, trie.children[0]])
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})
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})
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})
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