源码快照 @ 2026-09-01 (source-only, 剔除非源码素材)

tools/scripts/css-has-performance-policy.test.mjs

@@ -0,0 +1,114 @@
+import assert from "node:assert/strict";
+import test from "node:test";
+
+import {
+  analyzeCssHasPerformance,
+  isCssHasPerformancePath
+} from "./css-has-performance-policy.mjs";
+
+test("rejects :has() on document and large dynamic component subjects", () => {
+  const source = [
+    "body:has(.modal-open) { overflow: hidden; }",
+    ".workbench-window[data-mode='custom']:has(.editor) { display: grid; }",
+    ".shell .agent-gui-transcript-row:not(:has(.tool-row)) { margin: 0; }"
+  ].join("\n");
+
+  const diagnostics = analyzeCssHasPerformance({
+    path: "packages/example/styles.css",
+    source
+  });
+
+  assert.deepEqual(
+    diagnostics.map(({ line, subject }) => ({ line, subject })),
+    [
+      { line: 1, subject: "body" },
+      { line: 2, subject: ".workbench-window" },
+      { line: 3, subject: ".agent-gui-transcript-row" }
+    ]
+  );
+});
+
+test("allows bounded local subjects and descendant controls inside large surfaces", () => {
+  const source = [
+    ".workbench-window .local-button:has(svg) { color: red; }",
+    ".agent-gui-node__conversation-item:has([data-state='open']) {}",
+    ".dialog:not(:has(.actions)) .controls {}"
+  ].join("\n");
+
+  assert.deepEqual(
+    analyzeCssHasPerformance({
+      path: "packages/example/styles.css",
+      source
+    }),
+    []
+  );
+});
+
+test("handles selector lists, nested at-rules, comments, and strings", () => {
+  const source = [
+    "@media (min-width: 1px) {",
+    "  /* .workbench-window:has(.ignored) {} */",
+    "  .safe,",
+    "  .agent-gui-node__timeline:has(.streaming) {",
+    '    content: ".workbench-window:has(.ignored)";',
+    "  }",
+    "}"
+  ].join("\n");
+
+  const diagnostics = analyzeCssHasPerformance({
+    path: "packages/example/styles.css",
+    source
+  });
+
+  assert.equal(diagnostics.length, 1);
+  assert.equal(diagnostics[0]?.line, 4);
+  assert.equal(diagnostics[0]?.subject, ".agent-gui-node__timeline");
+  assert.match(diagnostics[0]?.selector ?? "", /\.safe,/u);
+});
+
+test("comments cannot hide a forbidden :has() subject", () => {
+  const diagnostics = analyzeCssHasPerformance({
+    path: "packages/example/styles.css",
+    source: ".workbench-window/* comment */:has(.editor) {}"
+  });
+
+  assert.equal(diagnostics[0]?.subject, ".workbench-window");
+});
+
+test("does not confuse similarly prefixed local classes with forbidden roots", () => {
+  const source = [
+    ".workbench-window__title:has(.status) {}",
+    ".agent-gui-node__timeline-label:has(svg) {}",
+    ".desktop-dock-popup:has(.item) {}"
+  ].join("\n");
+
+  assert.deepEqual(
+    analyzeCssHasPerformance({
+      path: "packages/example/styles.css",
+      source
+    }),
+    []
+  );
+});
+
+test("CSS performance path scope covers production stylesheets only", () => {
+  assert.equal(
+    isCssHasPerformancePath(
+      "packages/agent/gui/app/renderer/agentactivity.css"
+    ),
+    true
+  );
+  assert.equal(
+    isCssHasPerformancePath("apps/desktop/src/renderer/styles.css"),
+    true
+  );
+  assert.equal(
+    isCssHasPerformancePath("packages/example/dist/styles.css"),
+    false
+  );
+  assert.equal(isCssHasPerformancePath("tools/fixtures/negative.css"), false);
+  assert.equal(
+    isCssHasPerformancePath("packages/example/styles.test.css"),
+    false
+  );
+});