test(diffs): split render coverage from config tests

This commit is contained in:
Vincent Koc 2026-04-03 18:39:02 +09:00
parent 4bfa9260ce
commit e1093a3177
2 changed files with 220 additions and 217 deletions

View File

@ -1,12 +1,6 @@
import fs from "node:fs";
import {
disposeHighlighter,
RegisteredCustomThemes,
ResolvedThemes,
ResolvingThemes,
} from "@pierre/diffs";
import AjvPkg from "ajv";
import { afterEach, describe, expect, it, vi } from "vitest";
import { describe, expect, it, vi } from "vitest";
import {
DEFAULT_DIFFS_PLUGIN_SECURITY,
DEFAULT_DIFFS_TOOL_DEFAULTS,
@ -16,7 +10,6 @@ import {
resolveDiffsPluginSecurity,
resolveDiffsPluginViewerBaseUrl,
} from "./config.js";
import { renderDiffDocument } from "./render.js";
import { buildViewerUrl, normalizeViewerBaseUrl } from "./url.js";
import {
getServedViewerAsset,
@ -403,215 +396,6 @@ describe("diffs viewer URL helpers", () => {
});
});
describe("renderDiffDocument", () => {
afterEach(async () => {
await disposeHighlighter();
});
it("renders before/after input into a complete viewer document", async () => {
const rendered = await renderDiffDocument(
{
kind: "before_after",
before: "const value = 1;\n",
after: "const value = 2;\n",
path: "src/example.ts",
},
{
presentation: DEFAULT_DIFFS_TOOL_DEFAULTS,
image: resolveDiffImageRenderOptions({ defaults: DEFAULT_DIFFS_TOOL_DEFAULTS }),
expandUnchanged: false,
},
);
expect(rendered.title).toBe("src/example.ts");
expect(rendered.fileCount).toBe(1);
expect(rendered.html).toContain("data-openclaw-diff-root");
expect(rendered.html).toContain("src/example.ts");
expect(rendered.html).toContain("../../assets/viewer.js");
expect(rendered.imageHtml).toContain("../../assets/viewer.js");
expect(rendered.imageHtml).toContain("max-width: 960px;");
expect(rendered.imageHtml).toContain("--diffs-font-size: 16px;");
expect(rendered.html).toContain("min-height: 100vh;");
expect(rendered.html).toContain('"diffIndicators":"bars"');
expect(rendered.html).toContain('"disableLineNumbers":false');
expect(rendered.html).toContain("--diffs-line-height: 24px;");
expect(rendered.html).toContain("--diffs-font-size: 15px;");
expect(rendered.html).not.toContain("fonts.googleapis.com");
});
it("resolves viewer assets under an optional base path", async () => {
const rendered = await renderDiffDocument(
{
kind: "before_after",
before: "const value = 1;\n",
after: "const value = 2;\n",
},
{
presentation: DEFAULT_DIFFS_TOOL_DEFAULTS,
image: resolveDiffImageRenderOptions({ defaults: DEFAULT_DIFFS_TOOL_DEFAULTS }),
expandUnchanged: false,
},
);
const html = rendered.html ?? "";
const loaderSrc = html.match(/<script type="module" src="([^"]+)"><\/script>/)?.[1];
expect(loaderSrc).toBe("../../assets/viewer.js");
expect(
new URL(loaderSrc ?? "", "https://example.com/openclaw/plugins/diffs/view/id/token").pathname,
).toBe("/openclaw/plugins/diffs/assets/viewer.js");
});
it("downgrades invalid language hints to plain text", async () => {
const rendered = await renderDiffDocument(
{
kind: "before_after",
before: "const value = 1;\n",
after: "const value = 2;\n",
lang: "not-a-real-language",
},
{
presentation: DEFAULT_DIFFS_TOOL_DEFAULTS,
image: resolveDiffImageRenderOptions({ defaults: DEFAULT_DIFFS_TOOL_DEFAULTS }),
expandUnchanged: false,
},
);
const html = rendered.html ?? "";
expect(rendered.title).toBe("Text diff");
expect(html).toContain("diff.txt");
expect(html).not.toContain("not-a-real-language");
const payloads = [...html.matchAll(/data-openclaw-diff-payload>(.*?)<\/script>/g)].map(
(match) => parseViewerPayloadJson(match[1] ?? ""),
);
expect(payloads).toHaveLength(1);
expect(payloads[0]?.langs).toEqual(["text"]);
expect(payloads[0]?.oldFile?.lang).toBeUndefined();
expect(payloads[0]?.newFile?.lang).toBeUndefined();
});
it("renders multi-file patch input", async () => {
const patch = [
"diff --git a/a.ts b/a.ts",
"--- a/a.ts",
"+++ b/a.ts",
"@@ -1 +1 @@",
"-const a = 1;",
"+const a = 2;",
"diff --git a/b.ts b/b.ts",
"--- a/b.ts",
"+++ b/b.ts",
"@@ -1 +1 @@",
"-const b = 1;",
"+const b = 2;",
].join("\n");
const rendered = await renderDiffDocument(
{
kind: "patch",
patch,
title: "Workspace patch",
},
{
presentation: {
...DEFAULT_DIFFS_TOOL_DEFAULTS,
layout: "split",
theme: "dark",
},
image: resolveDiffImageRenderOptions({
defaults: DEFAULT_DIFFS_TOOL_DEFAULTS,
fileQuality: "hq",
fileMaxWidth: 1180,
}),
expandUnchanged: true,
},
);
expect(rendered.title).toBe("Workspace patch");
expect(rendered.fileCount).toBe(2);
expect(rendered.html).toContain("Workspace patch");
expect(rendered.imageHtml).toContain("max-width: 1180px;");
});
it("re-registers pierre theme loaders before rendering", async () => {
await disposeHighlighter();
const originalLightLoader = RegisteredCustomThemes.get("pierre-light");
const originalDarkLoader = RegisteredCustomThemes.get("pierre-dark");
const brokenLoader = async () => {
throw new Error("broken pierre theme loader");
};
RegisteredCustomThemes.set("pierre-light", brokenLoader);
RegisteredCustomThemes.set("pierre-dark", brokenLoader);
ResolvedThemes.delete("pierre-light");
ResolvedThemes.delete("pierre-dark");
ResolvingThemes.delete("pierre-light");
ResolvingThemes.delete("pierre-dark");
try {
const rendered = await renderDiffDocument(
{
kind: "before_after",
before: "const value = 1;\n",
after: "const value = 2;\n",
path: "src/example.ts",
},
{
presentation: DEFAULT_DIFFS_TOOL_DEFAULTS,
image: resolveDiffImageRenderOptions({ defaults: DEFAULT_DIFFS_TOOL_DEFAULTS }),
expandUnchanged: false,
},
);
expect(rendered.fileCount).toBe(1);
expect(rendered.html).toContain("src/example.ts");
expect(RegisteredCustomThemes.get("pierre-light")).not.toBe(brokenLoader);
expect(RegisteredCustomThemes.get("pierre-dark")).not.toBe(brokenLoader);
} finally {
if (originalLightLoader) {
RegisteredCustomThemes.set("pierre-light", originalLightLoader);
} else {
RegisteredCustomThemes.delete("pierre-light");
}
if (originalDarkLoader) {
RegisteredCustomThemes.set("pierre-dark", originalDarkLoader);
} else {
RegisteredCustomThemes.delete("pierre-dark");
}
await disposeHighlighter();
}
});
it("rejects patches that exceed file-count limits", async () => {
const patch = Array.from({ length: 129 }, (_, i) => {
return [
`diff --git a/f${i}.ts b/f${i}.ts`,
`--- a/f${i}.ts`,
`+++ b/f${i}.ts`,
"@@ -1 +1 @@",
"-const x = 1;",
"+const x = 2;",
].join("\n");
}).join("\n");
await expect(
renderDiffDocument(
{
kind: "patch",
patch,
},
{
presentation: DEFAULT_DIFFS_TOOL_DEFAULTS,
image: resolveDiffImageRenderOptions({ defaults: DEFAULT_DIFFS_TOOL_DEFAULTS }),
expandUnchanged: false,
},
),
).rejects.toThrow("too many files");
});
});
describe("viewer assets", () => {
it("prefers the built plugin asset layout when present", async () => {
const stat = vi.fn(async (path: string) => {

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@ -0,0 +1,219 @@
import {
disposeHighlighter,
RegisteredCustomThemes,
ResolvedThemes,
ResolvingThemes,
} from "@pierre/diffs";
import { afterEach, describe, expect, it } from "vitest";
import { DEFAULT_DIFFS_TOOL_DEFAULTS, resolveDiffImageRenderOptions } from "./config.js";
import { renderDiffDocument } from "./render.js";
import { parseViewerPayloadJson } from "./viewer-payload.js";
describe("renderDiffDocument", () => {
afterEach(async () => {
await disposeHighlighter();
});
it("renders before/after input into a complete viewer document", async () => {
const rendered = await renderDiffDocument(
{
kind: "before_after",
before: "const value = 1;\n",
after: "const value = 2;\n",
path: "src/example.ts",
},
{
presentation: DEFAULT_DIFFS_TOOL_DEFAULTS,
image: resolveDiffImageRenderOptions({ defaults: DEFAULT_DIFFS_TOOL_DEFAULTS }),
expandUnchanged: false,
},
);
expect(rendered.title).toBe("src/example.ts");
expect(rendered.fileCount).toBe(1);
expect(rendered.html).toContain("data-openclaw-diff-root");
expect(rendered.html).toContain("src/example.ts");
expect(rendered.html).toContain("../../assets/viewer.js");
expect(rendered.imageHtml).toContain("../../assets/viewer.js");
expect(rendered.imageHtml).toContain("max-width: 960px;");
expect(rendered.imageHtml).toContain("--diffs-font-size: 16px;");
expect(rendered.html).toContain("min-height: 100vh;");
expect(rendered.html).toContain('"diffIndicators":"bars"');
expect(rendered.html).toContain('"disableLineNumbers":false');
expect(rendered.html).toContain("--diffs-line-height: 24px;");
expect(rendered.html).toContain("--diffs-font-size: 15px;");
expect(rendered.html).not.toContain("fonts.googleapis.com");
});
it("resolves viewer assets under an optional base path", async () => {
const rendered = await renderDiffDocument(
{
kind: "before_after",
before: "const value = 1;\n",
after: "const value = 2;\n",
},
{
presentation: DEFAULT_DIFFS_TOOL_DEFAULTS,
image: resolveDiffImageRenderOptions({ defaults: DEFAULT_DIFFS_TOOL_DEFAULTS }),
expandUnchanged: false,
},
);
const html = rendered.html ?? "";
const loaderSrc = html.match(/<script type="module" src="([^"]+)"><\/script>/)?.[1];
expect(loaderSrc).toBe("../../assets/viewer.js");
expect(
new URL(loaderSrc ?? "", "https://example.com/openclaw/plugins/diffs/view/id/token").pathname,
).toBe("/openclaw/plugins/diffs/assets/viewer.js");
});
it("downgrades invalid language hints to plain text", async () => {
const rendered = await renderDiffDocument(
{
kind: "before_after",
before: "const value = 1;\n",
after: "const value = 2;\n",
lang: "not-a-real-language",
},
{
presentation: DEFAULT_DIFFS_TOOL_DEFAULTS,
image: resolveDiffImageRenderOptions({ defaults: DEFAULT_DIFFS_TOOL_DEFAULTS }),
expandUnchanged: false,
},
);
const html = rendered.html ?? "";
expect(rendered.title).toBe("Text diff");
expect(html).toContain("diff.txt");
expect(html).not.toContain("not-a-real-language");
const payloads = [...html.matchAll(/data-openclaw-diff-payload>(.*?)<\/script>/g)].map(
(match) => parseViewerPayloadJson(match[1] ?? ""),
);
expect(payloads).toHaveLength(1);
expect(payloads[0]?.langs).toEqual(["text"]);
expect(payloads[0]?.oldFile?.lang).toBeUndefined();
expect(payloads[0]?.newFile?.lang).toBeUndefined();
});
it("renders multi-file patch input", async () => {
const patch = [
"diff --git a/a.ts b/a.ts",
"--- a/a.ts",
"+++ b/a.ts",
"@@ -1 +1 @@",
"-const a = 1;",
"+const a = 2;",
"diff --git a/b.ts b/b.ts",
"--- a/b.ts",
"+++ b/b.ts",
"@@ -1 +1 @@",
"-const b = 1;",
"+const b = 2;",
].join("\n");
const rendered = await renderDiffDocument(
{
kind: "patch",
patch,
title: "Workspace patch",
},
{
presentation: {
...DEFAULT_DIFFS_TOOL_DEFAULTS,
layout: "split",
theme: "dark",
},
image: resolveDiffImageRenderOptions({
defaults: DEFAULT_DIFFS_TOOL_DEFAULTS,
fileQuality: "hq",
fileMaxWidth: 1180,
}),
expandUnchanged: true,
},
);
expect(rendered.title).toBe("Workspace patch");
expect(rendered.fileCount).toBe(2);
expect(rendered.html).toContain("Workspace patch");
expect(rendered.imageHtml).toContain("max-width: 1180px;");
});
it("re-registers pierre theme loaders before rendering", async () => {
await disposeHighlighter();
const originalLightLoader = RegisteredCustomThemes.get("pierre-light");
const originalDarkLoader = RegisteredCustomThemes.get("pierre-dark");
const brokenLoader = async () => {
throw new Error("broken pierre theme loader");
};
RegisteredCustomThemes.set("pierre-light", brokenLoader);
RegisteredCustomThemes.set("pierre-dark", brokenLoader);
ResolvedThemes.delete("pierre-light");
ResolvedThemes.delete("pierre-dark");
ResolvingThemes.delete("pierre-light");
ResolvingThemes.delete("pierre-dark");
try {
const rendered = await renderDiffDocument(
{
kind: "before_after",
before: "const value = 1;\n",
after: "const value = 2;\n",
path: "src/example.ts",
},
{
presentation: DEFAULT_DIFFS_TOOL_DEFAULTS,
image: resolveDiffImageRenderOptions({ defaults: DEFAULT_DIFFS_TOOL_DEFAULTS }),
expandUnchanged: false,
},
);
expect(rendered.fileCount).toBe(1);
expect(rendered.html).toContain("src/example.ts");
expect(RegisteredCustomThemes.get("pierre-light")).not.toBe(brokenLoader);
expect(RegisteredCustomThemes.get("pierre-dark")).not.toBe(brokenLoader);
} finally {
if (originalLightLoader) {
RegisteredCustomThemes.set("pierre-light", originalLightLoader);
} else {
RegisteredCustomThemes.delete("pierre-light");
}
if (originalDarkLoader) {
RegisteredCustomThemes.set("pierre-dark", originalDarkLoader);
} else {
RegisteredCustomThemes.delete("pierre-dark");
}
await disposeHighlighter();
}
});
it("rejects patches that exceed file-count limits", async () => {
const patch = Array.from({ length: 129 }, (_, i) => {
return [
`diff --git a/f${i}.ts b/f${i}.ts`,
`--- a/f${i}.ts`,
`+++ b/f${i}.ts`,
"@@ -1 +1 @@",
"-const x = 1;",
"+const x = 2;",
].join("\n");
}).join("\n");
await expect(
renderDiffDocument(
{
kind: "patch",
patch,
},
{
presentation: DEFAULT_DIFFS_TOOL_DEFAULTS,
image: resolveDiffImageRenderOptions({ defaults: DEFAULT_DIFFS_TOOL_DEFAULTS }),
expandUnchanged: false,
},
),
).rejects.toThrow("too many files");
});
});