import { describe, expect, it } from "@effect/vitest"; import {  ARTIFACT_PREVIEW_FIGURES,  artifactPreviewFigure,  artifactPreviewKind,} from "./artifact-preview"; /** * The fallback: a real render beats the schematic. * * Every producer upstream fails open — the smoke render, the sanitizer, the * settled capture — so "there is always something to draw" is the property that * makes all of that safe, and it is pinned here. */describe("artifactPreviewKind", () => {  it("draws a captured render when there is one", () => {    expect(artifactPreviewKind({ kind: "layout", markup: "<div>x</div>" })).toBe("layout");  });   it("falls back to the schematic for an artifact with no preview", () => {    expect(artifactPreviewKind(null)).toBe("schematic");    expect(artifactPreviewKind(undefined)).toBe("schematic");  });   it("treats an empty preview as no preview", () => {    expect(artifactPreviewKind({ kind: "layout", markup: "" })).toBe("schematic");  });}); /** * The schematic stands in for a screenshot the product does not have, so its * only real promise is that it is a pure function of the artifact's id: the * same artifact draws the same figure on every render, reload, and reorder. * A `Math.random` regression would break exactly that and nothing else, which * is why it is pinned here rather than left to a visual check. */describe("artifactPreviewFigure", () => {  it("returns the same figure for the same artifact", () => {    const first = artifactPreviewFigure("art_5f3c9a12");    const second = artifactPreviewFigure("art_5f3c9a12");    expect(second).toBe(first);  });   it("only ever returns a known figure", () => {    for (let index = 0; index < 200; index += 1) {      expect(ARTIFACT_PREVIEW_FIGURES).toContain(artifactPreviewFigure(`art_${index}`));    }  });   it("spreads ids across every figure rather than collapsing onto one", () => {    const seen = new Set(      Array.from({ length: 200 }, (_, index) => artifactPreviewFigure(`art_${index.toString(16)}`)),    );    expect(seen.size).toBe(ARTIFACT_PREVIEW_FIGURES.length);  });   it("distinguishes ids that differ only in their last character", () => {    expect(artifactPreviewFigure("art_aaaaaaaa")).not.toBe(artifactPreviewFigure("art_aaaaaaab"));  });   it("survives an empty id instead of drawing nothing", () => {    expect(ARTIFACT_PREVIEW_FIGURES).toContain(artifactPreviewFigure(""));  });});