import { describe, expect, it } from "vitest";

import { failureCount, renderReport } from "./verify-billing-boundary-baseline.mjs";

describe("verify-billing-boundary-baseline", () => {
  it("does not count successful gate output as failures", () => {
    expect(failureCount("lint", "warning only", "", 0)).toBe(0);
    expect(failureCount("vitest-billing-boundary", "Tests 30 passed", "", 0)).toBe(0);
    expect(failureCount("billing-inventory", "total matches: 12", "", 0)).toBe(0);
  });

  it("counts failed typecheck diagnostics conservatively", () => {
    const output = "src/a.ts(1,1): error TS2307: Cannot find module\nsrc/b.ts(2,2): error TS2322: Type mismatch";

    expect(failureCount("typecheck", output, "", 1)).toBe(2);
  });

  it("renders required Billing Boundary report sections", () => {
    const report = renderReport([
      {
        id: "billing-inventory",
        command: "read-only billing inventory",
        exitCode: 0,
        durationMs: 10,
        failureCount: 0,
        fingerprint: { hash: "abc123", excerpt: "total matches: 0" },
      },
    ]);

    expect(report).toContain("# Billing Boundary Baseline Health");
    expect(report).toContain("## billing-inventory");
    expect(report).toContain("Output Fingerprint: abc123");
  });
});