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claude-engineering-plugin/tests/gemini-writer.test.ts
Trevin Chow c2d60b47be
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refactor(install): prefer native plugin install across targets (#609)
Co-authored-by: John Cavanaugh <cavanaug@users.noreply.github.com>
2026-04-20 18:47:07 -07:00

365 lines
14 KiB
TypeScript

import { describe, expect, test } from "bun:test"
import { promises as fs } from "fs"
import path from "path"
import os from "os"
import { writeGeminiBundle } from "../src/targets/gemini"
import type { GeminiBundle } from "../src/types/gemini"
import { loadClaudePlugin } from "../src/parsers/claude"
import { convertClaudeToGemini } from "../src/converters/claude-to-gemini"
async function exists(filePath: string): Promise<boolean> {
try {
await fs.access(filePath)
return true
} catch {
return false
}
}
describe("writeGeminiBundle", () => {
test("removes stale generated agent skill dirs before writing Gemini generated skills", async () => {
const tempRoot = await fs.mkdtemp(path.join(os.tmpdir(), "gemini-cleanup-"))
const legacySkillPath = path.join(tempRoot, ".gemini", "skills", "security-reviewer", "SKILL.md")
await fs.mkdir(path.dirname(legacySkillPath), { recursive: true })
await fs.writeFile(
legacySkillPath,
`---\nname: security-reviewer\ndescription: ${JSON.stringify("Conditional code-review persona, selected when the diff touches auth middleware, public endpoints, user input handling, or permission checks. Reviews code for exploitable vulnerabilities.")}\n---\n\nLegacy agent\n`,
)
const bundle: GeminiBundle = {
generatedSkills: [
{
name: "security-reviewer",
content: "---\nname: security-reviewer\ndescription: Security\n---\n\nFresh generated skill.",
},
],
skillDirs: [],
commands: [],
}
await writeGeminiBundle(tempRoot, bundle)
const rewritten = await fs.readFile(legacySkillPath, "utf8")
expect(rewritten).toContain("Fresh generated skill.")
})
test("writes agents, skills, commands, and settings.json", async () => {
const tempRoot = await fs.mkdtemp(path.join(os.tmpdir(), "gemini-test-"))
const bundle: GeminiBundle = {
pluginName: "compound-engineering",
generatedSkills: [],
agents: [
{
name: "security-reviewer",
content: "---\nname: security-reviewer\ndescription: Security\n---\n\nReview code.",
},
],
skillDirs: [
{
name: "skill-one",
sourceDir: path.join(import.meta.dir, "fixtures", "sample-plugin", "skills", "skill-one"),
},
],
commands: [
{
name: "plan",
content: 'description = "Plan"\nprompt = """\nPlan the work.\n"""',
},
],
mcpServers: {
playwright: { command: "npx", args: ["-y", "@anthropic/mcp-playwright"] },
},
}
await writeGeminiBundle(tempRoot, bundle)
expect(await exists(path.join(tempRoot, ".gemini", "agents", "security-reviewer.md"))).toBe(true)
expect(await exists(path.join(tempRoot, ".gemini", "skills", "skill-one", "SKILL.md"))).toBe(true)
expect(await exists(path.join(tempRoot, ".gemini", "commands", "plan.toml"))).toBe(true)
expect(await exists(path.join(tempRoot, ".gemini", "settings.json"))).toBe(true)
expect(await exists(path.join(tempRoot, ".gemini", "compound-engineering", "install-manifest.json"))).toBe(true)
const agentContent = await fs.readFile(
path.join(tempRoot, ".gemini", "agents", "security-reviewer.md"),
"utf8",
)
expect(agentContent).toContain("Review code.")
const commandContent = await fs.readFile(
path.join(tempRoot, ".gemini", "commands", "plan.toml"),
"utf8",
)
expect(commandContent).toContain("Plan the work.")
const settingsContent = JSON.parse(
await fs.readFile(path.join(tempRoot, ".gemini", "settings.json"), "utf8"),
)
expect(settingsContent.mcpServers.playwright.command).toBe("npx")
})
test("transforms Task calls in copied SKILL.md files", async () => {
const tempRoot = await fs.mkdtemp(path.join(os.tmpdir(), "gemini-skill-transform-"))
const sourceSkillDir = path.join(tempRoot, "source-skill")
await fs.mkdir(sourceSkillDir, { recursive: true })
await fs.writeFile(
path.join(sourceSkillDir, "SKILL.md"),
`---
name: ce-plan
description: Planning workflow
---
Run these research agents:
- Task compound-engineering:research:repo-research-analyst(feature_description)
- Task compound-engineering:research:learnings-researcher(feature_description)
- Task compound-engineering:review:code-simplicity-reviewer()
`,
)
const bundle: GeminiBundle = {
generatedSkills: [],
skillDirs: [{ name: "ce-plan", sourceDir: sourceSkillDir }],
commands: [],
}
await writeGeminiBundle(tempRoot, bundle)
const installedSkill = await fs.readFile(
path.join(tempRoot, ".gemini", "skills", "ce-plan", "SKILL.md"),
"utf8",
)
expect(installedSkill).toContain("Use the @repo-research-analyst subagent to: feature_description")
expect(installedSkill).toContain("Use the @learnings-researcher subagent to: feature_description")
expect(installedSkill).toContain("Use the @code-simplicity-reviewer subagent")
expect(installedSkill).not.toContain("Task compound-engineering:")
})
test("namespaced commands create subdirectories", async () => {
const tempRoot = await fs.mkdtemp(path.join(os.tmpdir(), "gemini-ns-"))
const bundle: GeminiBundle = {
generatedSkills: [],
skillDirs: [],
commands: [
{
name: "workflows/plan",
content: 'description = "Plan"\nprompt = """\nPlan.\n"""',
},
],
}
await writeGeminiBundle(tempRoot, bundle)
expect(await exists(path.join(tempRoot, ".gemini", "commands", "workflows", "plan.toml"))).toBe(true)
})
test("does not double-nest when output root is .gemini", async () => {
const tempRoot = await fs.mkdtemp(path.join(os.tmpdir(), "gemini-home-"))
const geminiRoot = path.join(tempRoot, ".gemini")
const bundle: GeminiBundle = {
generatedSkills: [],
agents: [{ name: "reviewer", content: "Reviewer agent content" }],
skillDirs: [],
commands: [
{ name: "plan", content: "Plan content" },
],
}
await writeGeminiBundle(geminiRoot, bundle)
expect(await exists(path.join(geminiRoot, "agents", "reviewer.md"))).toBe(true)
expect(await exists(path.join(geminiRoot, "commands", "plan.toml"))).toBe(true)
// Should NOT double-nest under .gemini/.gemini
expect(await exists(path.join(geminiRoot, ".gemini"))).toBe(false)
})
test("handles empty bundles gracefully", async () => {
const tempRoot = await fs.mkdtemp(path.join(os.tmpdir(), "gemini-empty-"))
const bundle: GeminiBundle = {
generatedSkills: [],
skillDirs: [],
commands: [],
}
await writeGeminiBundle(tempRoot, bundle)
expect(await exists(tempRoot)).toBe(true)
})
test("backs up existing settings.json before overwrite", async () => {
const tempRoot = await fs.mkdtemp(path.join(os.tmpdir(), "gemini-backup-"))
const geminiRoot = path.join(tempRoot, ".gemini")
await fs.mkdir(geminiRoot, { recursive: true })
// Write existing settings.json
const settingsPath = path.join(geminiRoot, "settings.json")
await fs.writeFile(settingsPath, JSON.stringify({ mcpServers: { old: { command: "old-cmd" } } }))
const bundle: GeminiBundle = {
generatedSkills: [],
skillDirs: [],
commands: [],
mcpServers: {
newServer: { command: "new-cmd" },
},
}
await writeGeminiBundle(geminiRoot, bundle)
// New settings.json should have the new content
const newContent = JSON.parse(await fs.readFile(settingsPath, "utf8"))
expect(newContent.mcpServers.newServer.command).toBe("new-cmd")
// A backup file should exist
const files = await fs.readdir(geminiRoot)
const backupFiles = files.filter((f) => f.startsWith("settings.json.bak."))
expect(backupFiles.length).toBeGreaterThanOrEqual(1)
})
test("merges mcpServers into existing settings.json without clobbering other keys", async () => {
const tempRoot = await fs.mkdtemp(path.join(os.tmpdir(), "gemini-merge-"))
const geminiRoot = path.join(tempRoot, ".gemini")
await fs.mkdir(geminiRoot, { recursive: true })
// Write existing settings.json with other keys
const settingsPath = path.join(geminiRoot, "settings.json")
await fs.writeFile(settingsPath, JSON.stringify({
model: "gemini-2.5-pro",
mcpServers: { old: { command: "old-cmd" } },
}))
const bundle: GeminiBundle = {
generatedSkills: [],
skillDirs: [],
commands: [],
mcpServers: {
newServer: { command: "new-cmd" },
},
}
await writeGeminiBundle(geminiRoot, bundle)
const content = JSON.parse(await fs.readFile(settingsPath, "utf8"))
// Should preserve existing model key
expect(content.model).toBe("gemini-2.5-pro")
// Should preserve existing MCP server
expect(content.mcpServers.old.command).toBe("old-cmd")
// Should add new MCP server
expect(content.mcpServers.newServer.command).toBe("new-cmd")
})
test("removes previously managed Gemini artifacts that disappear on reinstall", async () => {
const tempRoot = await fs.mkdtemp(path.join(os.tmpdir(), "gemini-managed-cleanup-"))
await writeGeminiBundle(tempRoot, {
pluginName: "compound-engineering",
generatedSkills: [],
agents: [{ name: "old-agent", content: "---\nname: old-agent\n---\n\nBody" }],
skillDirs: [
{
name: "skill-one",
sourceDir: path.join(import.meta.dir, "fixtures", "sample-plugin", "skills", "skill-one"),
},
],
commands: [{ name: "old/cmd", content: 'description = "Old"\nprompt = """\nold\n"""' }],
})
await writeGeminiBundle(tempRoot, {
pluginName: "compound-engineering",
generatedSkills: [],
agents: [{ name: "new-agent", content: "---\nname: new-agent\n---\n\nBody" }],
skillDirs: [],
commands: [{ name: "new/cmd", content: 'description = "New"\nprompt = """\nnew\n"""' }],
})
expect(await exists(path.join(tempRoot, ".gemini", "skills", "skill-one", "SKILL.md"))).toBe(false)
expect(await exists(path.join(tempRoot, ".gemini", "agents", "old-agent.md"))).toBe(false)
expect(await exists(path.join(tempRoot, ".gemini", "agents", "new-agent.md"))).toBe(true)
expect(await exists(path.join(tempRoot, ".gemini", "commands", "old", "cmd.toml"))).toBe(false)
expect(await exists(path.join(tempRoot, ".gemini", "commands", "new", "cmd.toml"))).toBe(true)
})
test("namespaces managed install manifests per plugin so installs do not collide", async () => {
const tempRoot = await fs.mkdtemp(path.join(os.tmpdir(), "gemini-multi-plugin-"))
// Install plugin A first, with a skill and an agent
await writeGeminiBundle(tempRoot, {
pluginName: "compound-engineering",
generatedSkills: [],
agents: [{ name: "ce-agent", content: "---\nname: ce-agent\n---\n\nBody" }],
skillDirs: [
{
name: "ce-skill",
sourceDir: path.join(import.meta.dir, "fixtures", "sample-plugin", "skills", "skill-one"),
},
],
commands: [],
})
// Install plugin B into the same Gemini root
await writeGeminiBundle(tempRoot, {
pluginName: "coding-tutor",
generatedSkills: [],
agents: [{ name: "tutor-agent", content: "---\nname: tutor-agent\n---\n\nBody" }],
skillDirs: [
{
name: "tutor-skill",
sourceDir: path.join(import.meta.dir, "fixtures", "sample-plugin", "skills", "skill-one"),
},
],
commands: [],
})
// Both plugins must keep their own namespaced manifest
expect(await exists(path.join(tempRoot, ".gemini", "compound-engineering", "install-manifest.json"))).toBe(true)
expect(await exists(path.join(tempRoot, ".gemini", "coding-tutor", "install-manifest.json"))).toBe(true)
// Reinstall plugin A with no agents/skills — it must clean up only its own
// managed artifacts, leaving plugin B's intact (the bug the namespacing fix
// addresses: a shared manifest path would have lost B's manifest after A
// was installed, and a later A reinstall would skip B's stale-file cleanup).
await writeGeminiBundle(tempRoot, {
pluginName: "compound-engineering",
generatedSkills: [],
agents: [],
skillDirs: [],
commands: [],
})
expect(await exists(path.join(tempRoot, ".gemini", "agents", "ce-agent.md"))).toBe(false)
expect(await exists(path.join(tempRoot, ".gemini", "skills", "ce-skill"))).toBe(false)
expect(await exists(path.join(tempRoot, ".gemini", "agents", "tutor-agent.md"))).toBe(true)
expect(await exists(path.join(tempRoot, ".gemini", "skills", "tutor-skill"))).toBe(true)
expect(await exists(path.join(tempRoot, ".gemini", "coding-tutor", "install-manifest.json"))).toBe(true)
})
test("moves legacy Gemini CE artifacts to a namespaced backup", async () => {
const tempRoot = await fs.mkdtemp(path.join(os.tmpdir(), "gemini-legacy-artifacts-"))
const geminiRoot = path.join(tempRoot, ".gemini")
await fs.mkdir(path.join(geminiRoot, "skills", "reproduce-bug"), { recursive: true })
await fs.writeFile(path.join(geminiRoot, "skills", "reproduce-bug", "SKILL.md"), "legacy removed skill")
await fs.mkdir(path.join(geminiRoot, "skills", "bug-reproduction-validator"), { recursive: true })
await fs.writeFile(path.join(geminiRoot, "skills", "bug-reproduction-validator", "SKILL.md"), "legacy removed agent skill")
await fs.mkdir(path.join(geminiRoot, "agents"), { recursive: true })
await fs.writeFile(path.join(geminiRoot, "agents", "bug-reproduction-validator.md"), "legacy removed agent")
await fs.mkdir(path.join(geminiRoot, "commands"), { recursive: true })
await fs.writeFile(path.join(geminiRoot, "commands", "reproduce-bug.toml"), "legacy removed command")
await fs.writeFile(path.join(geminiRoot, "commands", "report-bug.toml"), "legacy deleted command")
const plugin = await loadClaudePlugin(path.join(import.meta.dir, "..", "plugins", "compound-engineering"))
const bundle = convertClaudeToGemini(plugin, {
agentMode: "subagent",
inferTemperature: true,
permissions: "none",
})
await writeGeminiBundle(geminiRoot, bundle)
expect(await exists(path.join(geminiRoot, "skills", "reproduce-bug"))).toBe(false)
expect(await exists(path.join(geminiRoot, "skills", "bug-reproduction-validator"))).toBe(false)
expect(await exists(path.join(geminiRoot, "agents", "bug-reproduction-validator.md"))).toBe(false)
expect(await exists(path.join(geminiRoot, "commands", "reproduce-bug.toml"))).toBe(false)
expect(await exists(path.join(geminiRoot, "commands", "report-bug.toml"))).toBe(false)
expect(await exists(path.join(geminiRoot, "compound-engineering", "legacy-backup"))).toBe(true)
})
})