test(canvas/config): add pure-function tests for parseYaml and toYaml
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Cover parseYaml: empty input, blanks, comments, booleans, numbers,
lists, objects, 2-level nesting (env.required pattern), round-trip.
Cover toYaml: name/desc, version/tier, runtime, runtime_config,
effort/task_budget, prompt_files/skills/tools lists, a2a/delegation/
sandbox nested blocks, null-omission, trailing newline, full round-trip.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
This commit is contained in:
Molecule AI · core-fe 2026-05-10 03:37:44 +00:00
parent 9cb5f43140
commit 9b91bda2ed

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@ -0,0 +1,313 @@
// @vitest-environment jsdom
/**
* Tests for yaml-utils.ts parseYaml and toYaml pure functions.
*/
import { describe, expect, it } from "vitest";
import { parseYaml, toYaml } from "../yaml-utils";
import type { ConfigData } from "../form-inputs";
const FULL_CONFIG: ConfigData = {
name: "my-agent",
description: "A helpful assistant",
version: "1.0.0",
tier: 4,
model: "claude-4-7",
runtime: "claude-code",
runtime_config: { model: "claude-4-7", required_env: ["ANTHROPIC_API_KEY"], timeout: 120 },
effort: "medium",
task_budget: 100,
prompt_files: ["system.md"],
skills: ["web-search", "code"],
tools: ["bash"],
a2a: { port: 8000, streaming: true, push_notifications: true },
delegation: { retry_attempts: 3, retry_delay: 5, timeout: 120, escalate: true },
sandbox: { backend: "docker", memory_limit: "256m", timeout: 30 },
};
const MINIMAL_CONFIG: ConfigData = {
name: "",
description: "",
version: "1.0.0",
tier: 1,
model: "",
runtime: "",
prompt_files: [],
skills: [],
tools: [],
a2a: { port: 8000, streaming: true, push_notifications: true },
delegation: { retry_attempts: 3, retry_delay: 5, timeout: 120, escalate: true },
sandbox: { backend: "docker", memory_limit: "256m", timeout: 30 },
};
// ─── parseYaml ─────────────────────────────────────────────────────────────────
describe("parseYaml", () => {
it("returns empty object for empty input", () => {
expect(parseYaml("")).toEqual({});
});
it("returns empty object for blank lines only", () => {
expect(parseYaml("\n\n \n")).toEqual({});
});
it("returns empty object for comment-only input", () => {
expect(parseYaml("# hello\n# world")).toEqual({});
});
it("parses simple key-value pairs", () => {
const result = parseYaml("name: hello\nversion: 1.0");
expect(result).toEqual({ name: "hello", version: "1.0" });
});
it("trims whitespace around values", () => {
const result = parseYaml("name: hello \nversion: 1.0 ");
expect(result).toEqual({ name: "hello", version: "1.0" });
});
it("parses boolean true", () => {
expect(parseYaml("streaming: true")).toEqual({ streaming: true });
});
it("parses boolean false", () => {
expect(parseYaml("streaming: false")).toEqual({ streaming: false });
});
it("parses integer numbers", () => {
expect(parseYaml("port: 8000\ntimeout: 120")).toEqual({ port: 8000, timeout: 120 });
});
it("parses string values that look like numbers", () => {
// Keys that have no space before colon would have been parsed as numbers
// but since the YAML has `key: value` format, it should be string
expect(parseYaml("model: claude-4-7")).toEqual({ model: "claude-4-7" });
});
it("parses a top-level list", () => {
const result = parseYaml("skills:\n - web-search\n - code");
expect(result).toEqual({ skills: ["web-search", "code"] });
});
it("parses a top-level object", () => {
const result = parseYaml("a2a:\n port: 8000\n streaming: true");
expect(result).toEqual({ a2a: { port: 8000, streaming: true } });
});
it("skips blank lines within content", () => {
const result = parseYaml("name: hello\n\nversion: 1.0\n\n");
expect(result).toEqual({ name: "hello", version: "1.0" });
});
it("skips comment lines within content", () => {
const result = parseYaml("name: hello\n# this is a comment\nversion: 1.0");
expect(result).toEqual({ name: "hello", version: "1.0" });
});
it("parses a 2-level nested list (env.required pattern)", () => {
const result = parseYaml("env:\n required:\n - ANTHROPIC_API_KEY\n - OPENAI_API_KEY");
expect(result).toEqual({ env: { required: ["ANTHROPIC_API_KEY", "OPENAI_API_KEY"] } });
});
it("parses empty list marker `[]`", () => {
const result = parseYaml("prompt_files: []");
expect(result).toEqual({ prompt_files: [] });
});
it("handles multiple mixed structures in one document", () => {
const yaml = `name: test-agent
version: 1.0.0
tier: 4
runtime: claude-code
skills:
- web-search
a2a:
port: 8000
streaming: true`;
const result = parseYaml(yaml);
expect(result).toEqual({
name: "test-agent",
version: "1.0.0",
tier: 4,
runtime: "claude-code",
skills: ["web-search"],
a2a: { port: 8000, streaming: true },
});
});
it("leaves unrecognised top-level lines as-is (skipped)", () => {
// Lines that don't match the pattern are skipped
const result = parseYaml("name: hello\n[invalid line]\nversion: 1.0");
expect(result).toEqual({ name: "hello", version: "1.0" });
});
});
// ─── toYaml ─────────────────────────────────────────────────────────────────────
describe("toYaml", () => {
it("produces output for minimal config (required fields only)", () => {
const out = toYaml(MINIMAL_CONFIG);
// skills: [] and tools: [] are always emitted
expect(out).toContain("version: 1.0.0");
expect(out).toContain("tier: 1");
expect(out).toContain("skills: []");
expect(out).toContain("tools: []");
expect(out).toContain("a2a:");
expect(out).toContain("delegation:");
expect(out).toContain("sandbox:");
});
it("writes name and description fields", () => {
const cfg: ConfigData = { ...MINIMAL_CONFIG, name: "my-agent", description: "desc" };
const out = toYaml(cfg);
expect(out).toContain("name: my-agent");
expect(out).toContain("description: desc");
});
it("writes version and tier", () => {
const cfg: ConfigData = { ...MINIMAL_CONFIG, tier: 4 };
const out = toYaml(cfg);
expect(out).toContain("version: 1.0.0");
expect(out).toContain("tier: 4");
});
it("writes runtime with a blank line separator before it", () => {
const cfg: ConfigData = { ...MINIMAL_CONFIG, runtime: "claude-code" };
const out = toYaml(cfg);
expect(out).toContain("runtime: claude-code");
});
it("writes runtime_config as a nested block", () => {
const cfg: ConfigData = {
...MINIMAL_CONFIG,
runtime: "claude-code",
runtime_config: { model: "claude-4-7", required_env: ["KEY"], timeout: 120 },
};
const out = toYaml(cfg);
expect(out).toContain("runtime_config:");
expect(out).toContain(" model: claude-4-7");
expect(out).toContain(" required_env:");
expect(out).toContain(" - KEY");
expect(out).toContain(" timeout: 120");
});
it("omits runtime_config when empty", () => {
const cfg: ConfigData = { ...MINIMAL_CONFIG, runtime: "claude-code" };
const out = toYaml(cfg);
// runtime_config key should not appear
expect(out).not.toContain("runtime_config:");
});
it("writes effort when set", () => {
const cfg: ConfigData = { ...MINIMAL_CONFIG, effort: "high" };
const out = toYaml(cfg);
expect(out).toContain("effort: high");
});
it("omits effort when empty string", () => {
const cfg: ConfigData = { ...MINIMAL_CONFIG, effort: "" };
const out = toYaml(cfg);
expect(out).not.toContain("effort:");
});
it("writes task_budget when positive", () => {
const cfg: ConfigData = { ...MINIMAL_CONFIG, task_budget: 100 };
const out = toYaml(cfg);
expect(out).toContain("task_budget: 100");
});
it("omits task_budget when zero", () => {
const cfg: ConfigData = { ...MINIMAL_CONFIG, task_budget: 0 };
const out = toYaml(cfg);
expect(out).not.toContain("task_budget:");
});
it("writes prompt_files as a list block", () => {
const cfg: ConfigData = { ...MINIMAL_CONFIG, prompt_files: ["system.md", "ethics.md"] };
const out = toYaml(cfg);
expect(out).toContain("prompt_files:");
expect(out).toContain(" - system.md");
expect(out).toContain(" - ethics.md");
});
it("writes skills as a list block", () => {
const cfg: ConfigData = { ...MINIMAL_CONFIG, skills: ["web-search", "code"] };
const out = toYaml(cfg);
expect(out).toContain("skills:");
expect(out).toContain(" - web-search");
expect(out).toContain(" - code");
});
it("writes tools as a list block", () => {
const cfg: ConfigData = { ...MINIMAL_CONFIG, tools: ["bash", "read"] };
const out = toYaml(cfg);
expect(out).toContain("tools:");
expect(out).toContain(" - bash");
expect(out).toContain(" - read");
});
it("writes a2a as a nested block", () => {
const cfg: ConfigData = { ...MINIMAL_CONFIG, a2a: { port: 9000, streaming: false, push_notifications: false } };
const out = toYaml(cfg);
expect(out).toContain("a2a:");
expect(out).toContain(" port: 9000");
expect(out).toContain(" streaming: false");
expect(out).toContain(" push_notifications: false");
});
it("writes delegation as a nested block", () => {
const cfg: ConfigData = { ...MINIMAL_CONFIG, delegation: { retry_attempts: 5, retry_delay: 10, timeout: 60, escalate: false } };
const out = toYaml(cfg);
expect(out).toContain("delegation:");
expect(out).toContain(" retry_attempts: 5");
expect(out).toContain(" retry_delay: 10");
expect(out).toContain(" timeout: 60");
expect(out).toContain(" escalate: false");
});
it("writes sandbox backend block", () => {
const cfg: ConfigData = { ...MINIMAL_CONFIG, sandbox: { backend: "aws-lambda", memory_limit: "512m", timeout: 15 } };
const out = toYaml(cfg);
expect(out).toContain("sandbox:");
expect(out).toContain(" backend: aws-lambda");
expect(out).toContain(" memory_limit: 512m");
expect(out).toContain(" timeout: 15");
});
it("omits empty/null/undefined fields entirely", () => {
const cfg: ConfigData = {
...MINIMAL_CONFIG,
name: "test",
model: "", // omitted
description: "", // omitted
};
const out = toYaml(cfg);
expect(out).not.toContain("model:");
expect(out).not.toContain("description:");
expect(out).toContain("name: test");
});
it("produces a trailing newline", () => {
const out = toYaml(MINIMAL_CONFIG);
expect(out.endsWith("\n")).toBe(true);
});
it("round-trips FULL_CONFIG through parse → toYaml → parse", () => {
// parseYaml produces plain Record, so a2a/delegation/sandbox
// come out as objects — toYaml handles them via the cast.
const round = parseYaml(toYaml(FULL_CONFIG));
expect(round).toMatchObject({
name: "my-agent",
description: "A helpful assistant",
version: "1.0.0",
tier: 4,
runtime: "claude-code",
effort: "medium",
task_budget: 100,
prompt_files: ["system.md"],
skills: ["web-search", "code"],
tools: ["bash"],
});
expect(round.a2a).toMatchObject({ port: 8000, streaming: true, push_notifications: true });
expect(round.delegation).toMatchObject({ retry_attempts: 3, retry_delay: 5, timeout: 120, escalate: true });
expect(round.sandbox).toMatchObject({ backend: "docker", memory_limit: "256m", timeout: 30 });
});
});