packages/vite-plugin/src/plugin.test.ts

@@ -1,9 +1,15 @@
 import path from "node:path"
-import type { Plugin, TransformPluginContext } from "vite"
+import type { Plugin } from "vite"
 import { describe, expect, it } from "vitest"
 import { effectViewPlugin } from "./index.js"
 
 
+type TransformHook = Extract<
+    NonNullable<Plugin["transform"]>,
+    (...args: never[]) => unknown
+>
+type TransformPluginContext = ThisParameterType<TransformHook>
+
 const runTransform = async (
     plugin: Plugin,
     code: string,
@@ -19,7 +25,7 @@ const runTransform = async (
 
     if (!result)
         return undefined
-    return typeof result === "string" ? result : result.code
+    return typeof result === "string" ? result : result.code?.toString()
 }
 
 const transform = (

packages/vite-plugin/src/runtime.test.ts

@@ -8,6 +8,12 @@ describe("refresh runtime", () => {
     const component = <A extends object>(value: A): A & Component.Component.Any =>
         value as A & Component.Component.Any
 
+    const refreshCell = (value: Component.Component.Any): Refreshable.Cell => {
+        if (!Refreshable.isRefreshable(value))
+            throw new Error("Expected a refreshable component")
+        return value[Refreshable.RefreshableTypeId]
+    }
+
     it("retains a cell and notifies subscribers for compatible updates", async () => {
         const hot = {
             data: {},
@@ -15,12 +21,12 @@ describe("refresh runtime", () => {
             invalidate: vi.fn(),
         }
         const first = register(component({ body: "first" }), hot, "module:View", "hooks")
-        const cell = (first as Record<PropertyKey, unknown>)[Refreshable.RefreshableTypeId] as Refreshable.Cell
+        const cell = refreshCell(first)
         const listener = vi.fn()
         cell.subscribe(listener)
 
         const second = register(component({ body: "second" }), hot, "module:View", "hooks")
-        const secondCell = (second as Record<PropertyKey, unknown>)[Refreshable.RefreshableTypeId]
+        const secondCell = refreshCell(second)
 
         expect(secondCell).toBe(cell)
         expect(cell.current).toBe(second)
@@ -40,7 +46,7 @@ describe("refresh runtime", () => {
             invalidate: vi.fn(),
         }
         const first = register(component({}), hot, "module:View", "one")
-        const cell = (first as Record<PropertyKey, unknown>)[Refreshable.RefreshableTypeId] as Refreshable.Cell
+        const cell = refreshCell(first)
 
         register(component({}), hot, "module:View", "two")
         expect(cell.snapshot.resetRevision).toBe(1)
@@ -52,7 +58,7 @@ describe("refresh runtime", () => {
     it("is inert outside a Vite hot context", () => {
         const descriptor = component({})
         expect(register(descriptor, undefined, "module:View", "hooks")).toBe(descriptor)
-        expect((descriptor as Record<PropertyKey, unknown>)[Refreshable.RefreshableTypeId]).toBeUndefined()
+        expect(Refreshable.isRefreshable(descriptor)).toBe(false)
     })
 
     it("invalidates when the module's View IDs change", () => {