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| 1 | +import { mkdirSync, mkdtempSync, rmSync, writeFileSync } from "node:fs"; |
| 2 | +import { tmpdir } from "node:os"; |
| 3 | +import { join } from "node:path"; |
| 4 | +import { afterEach, beforeEach, describe, expect, it } from "vitest"; |
| 5 | +import { LocalLoader } from "./local-loader.js"; |
| 6 | + |
| 7 | +describe("LocalLoader", () => { |
| 8 | + let root: string; |
| 9 | + let skillsDir: string; |
| 10 | + let templatesDir: string; |
| 11 | + let promptsDir: string; |
| 12 | + |
| 13 | + beforeEach(() => { |
| 14 | + root = mkdtempSync(join(tmpdir(), "codebase-skills-")); |
| 15 | + skillsDir = join(root, "skills"); |
| 16 | + templatesDir = join(root, "templates"); |
| 17 | + promptsDir = join(root, "prompts"); |
| 18 | + }); |
| 19 | + |
| 20 | + afterEach(() => { |
| 21 | + rmSync(root, { recursive: true, force: true }); |
| 22 | + }); |
| 23 | + |
| 24 | + it("returns [] when no directories exist", async () => { |
| 25 | + const loader = new LocalLoader(root); |
| 26 | + await expect(loader.listSkills()).resolves.toEqual([]); |
| 27 | + await expect(loader.listTemplates()).resolves.toEqual([]); |
| 28 | + await expect(loader.listPrompts()).resolves.toEqual([]); |
| 29 | + }); |
| 30 | + |
| 31 | + it("loads a skill with full frontmatter", async () => { |
| 32 | + mkdirSync(skillsDir, { recursive: true }); |
| 33 | + writeFileSync( |
| 34 | + join(skillsDir, "optimize.md"), |
| 35 | + [ |
| 36 | + "---", |
| 37 | + "id: optimize", |
| 38 | + "name: Optimize hot path", |
| 39 | + "description: Refactor for performance", |
| 40 | + "tags: [perf, refactor]", |
| 41 | + 'preferredModel: "claude-opus-4-7"', |
| 42 | + "---", |
| 43 | + "", |
| 44 | + "You are a performance-focused engineer. Trim allocations.", |
| 45 | + "", |
| 46 | + ].join("\n"), |
| 47 | + ); |
| 48 | + const loader = new LocalLoader(root); |
| 49 | + const skills = await loader.listSkills(); |
| 50 | + expect(skills).toHaveLength(1); |
| 51 | + const s = skills[0]; |
| 52 | + expect(s.id).toBe("optimize"); |
| 53 | + expect(s.name).toBe("Optimize hot path"); |
| 54 | + expect(s.description).toBe("Refactor for performance"); |
| 55 | + expect(s.tags).toEqual(["perf", "refactor"]); |
| 56 | + expect(s.preferredModel).toBe("claude-opus-4-7"); |
| 57 | + expect(s.systemPrompt).toContain("performance-focused"); |
| 58 | + expect(s.source).toBe("user"); |
| 59 | + }); |
| 60 | + |
| 61 | + it("falls back to filename as id when frontmatter omits it", async () => { |
| 62 | + mkdirSync(skillsDir, { recursive: true }); |
| 63 | + writeFileSync(join(skillsDir, "summarize.md"), "Summarize the changes clearly."); |
| 64 | + const loader = new LocalLoader(root); |
| 65 | + const skills = await loader.listSkills(); |
| 66 | + expect(skills).toHaveLength(1); |
| 67 | + expect(skills[0].id).toBe("summarize"); |
| 68 | + expect(skills[0].name).toBe("summarize"); |
| 69 | + expect(skills[0].systemPrompt).toBe("Summarize the changes clearly."); |
| 70 | + }); |
| 71 | + |
| 72 | + it("loads a template + prompt from their respective dirs", async () => { |
| 73 | + mkdirSync(templatesDir, { recursive: true }); |
| 74 | + mkdirSync(promptsDir, { recursive: true }); |
| 75 | + writeFileSync( |
| 76 | + join(templatesDir, "nextjs.md"), |
| 77 | + ["---", "name: Next.js app", "---", "", "Scaffold a Next.js 15 project with app router."].join("\n"), |
| 78 | + ); |
| 79 | + writeFileSync( |
| 80 | + join(promptsDir, "explain-diff.md"), |
| 81 | + ["---", "name: Explain my diff", "---", "", "Explain the staged diff in plain English."].join("\n"), |
| 82 | + ); |
| 83 | + const loader = new LocalLoader(root); |
| 84 | + const templates = await loader.listTemplates(); |
| 85 | + const prompts = await loader.listPrompts(); |
| 86 | + expect(templates).toHaveLength(1); |
| 87 | + expect(templates[0].kind).toBe("template"); |
| 88 | + expect(templates[0].name).toBe("Next.js app"); |
| 89 | + expect(prompts).toHaveLength(1); |
| 90 | + expect(prompts[0].kind).toBe("prompt"); |
| 91 | + expect(prompts[0].body).toContain("staged diff"); |
| 92 | + }); |
| 93 | + |
| 94 | + it("ignores non-md files", async () => { |
| 95 | + mkdirSync(skillsDir, { recursive: true }); |
| 96 | + writeFileSync(join(skillsDir, "README"), "documentation"); |
| 97 | + writeFileSync(join(skillsDir, "junk.txt"), "ignored"); |
| 98 | + writeFileSync(join(skillsDir, "real.md"), "real skill body"); |
| 99 | + const loader = new LocalLoader(root); |
| 100 | + const skills = await loader.listSkills(); |
| 101 | + expect(skills).toHaveLength(1); |
| 102 | + expect(skills[0].id).toBe("real"); |
| 103 | + }); |
| 104 | + |
| 105 | + it("supports a file with no frontmatter at all", async () => { |
| 106 | + mkdirSync(skillsDir, { recursive: true }); |
| 107 | + writeFileSync(join(skillsDir, "raw.md"), "Just the body, nothing else.\n"); |
| 108 | + const loader = new LocalLoader(root); |
| 109 | + const skills = await loader.listSkills(); |
| 110 | + expect(skills).toHaveLength(1); |
| 111 | + expect(skills[0].id).toBe("raw"); |
| 112 | + expect(skills[0].systemPrompt).toBe("Just the body, nothing else.\n"); |
| 113 | + }); |
| 114 | + |
| 115 | + it("supports a file whose frontmatter is never closed (treats whole file as body)", async () => { |
| 116 | + mkdirSync(skillsDir, { recursive: true }); |
| 117 | + writeFileSync(join(skillsDir, "broken.md"), "---\nid: oops\nname: missing close\n\nstill body"); |
| 118 | + const loader = new LocalLoader(root); |
| 119 | + const skills = await loader.listSkills(); |
| 120 | + expect(skills).toHaveLength(1); |
| 121 | + expect(skills[0].id).toBe("broken"); // falls back to filename, since no frontmatter recognized |
| 122 | + }); |
| 123 | + |
| 124 | + it("parses bare-string and bracketed-list values", async () => { |
| 125 | + mkdirSync(skillsDir, { recursive: true }); |
| 126 | + writeFileSync( |
| 127 | + join(skillsDir, "test.md"), |
| 128 | + ["---", "name: My Skill", "tags: [a, b, c]", "---", "", "body"].join("\n"), |
| 129 | + ); |
| 130 | + const loader = new LocalLoader(root); |
| 131 | + const skills = await loader.listSkills(); |
| 132 | + expect(skills[0].name).toBe("My Skill"); |
| 133 | + expect(skills[0].tags).toEqual(["a", "b", "c"]); |
| 134 | + }); |
| 135 | +}); |
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