snapshot of https://github.com/shadcn-ui/ui.git (main, 2026-09-15; blobs > 131072B omitted)

apps/v4/app/(app)/(create)/lib/search-params.test.ts

@@ -0,0 +1,53 @@
+import { describe, expect, it } from "vitest"
+
+import { DEFAULT_CONFIG } from "@/registry/config"
+
+import { buildPresetUrlUpdate } from "./search-params"
+
+describe("buildPresetUrlUpdate", () => {
+  it("encodes design system params into preset and clears individual keys", () => {
+    const update = buildPresetUrlUpdate({
+      ...DEFAULT_CONFIG,
+      preset: "b0",
+      template: "next",
+      item: "preview-02",
+      size: 100,
+      custom: false,
+    })
+
+    expect(update.preset).toBeTypeOf("string")
+    expect(update.style).toBeNull()
+    expect(update.theme).toBeNull()
+    expect(update.baseColor).toBeNull()
+  })
+
+  it("preserves template when syncing preset from ?template=start", () => {
+    const update = buildPresetUrlUpdate({
+      ...DEFAULT_CONFIG,
+      preset: "b0",
+      template: "start",
+      item: "preview-02",
+      size: 100,
+      custom: false,
+    })
+
+    expect(update.template).toBe("start")
+    expect(update.preset).toBeTypeOf("string")
+  })
+
+  it("applies non-design-system updates from resolvedUpdates", () => {
+    const update = buildPresetUrlUpdate(
+      {
+        ...DEFAULT_CONFIG,
+        preset: "b0",
+        template: "next",
+        item: "preview-02",
+        size: 100,
+        custom: false,
+      },
+      { template: "vite" }
+    )
+
+    expect(update.template).toBe("vite")
+  })
+})