feat: add tests for findNodeAddonsForBindings()

Author: Mariusz Pasinski

packages/host/src/node/babel-plugin/plugin.test.ts

@@ -4,7 +4,7 @@ import path from "node:path";
 
 import { transformFileSync } from "@babel/core";
 
-import { plugin, type PluginOptions } from "./plugin.js";
+import { plugin, findNodeAddonForBindings, type PluginOptions } from "./plugin.js";
 import { setupTempDirectory } from "../test-utils.js";
 
 describe("plugin", () => {
@@ -112,3 +112,31 @@ describe("plugin", () => {
     };
   });
 });
+
+describe("findNodeAddonForBindings()", () => {
+  it("should look for addons in common paths", (context) => {
+    // Arrange
+    const expectedPaths = {
+      "addon_1": "addon_1.node",
+      "addon_2": "build/Release/addon_2.node",
+      "addon_3": "build/Debug/addon_3.node",
+      "addon_4": "build/addon_4.node",
+      "addon_5": "out/Release/addon_5.node",
+      "addon_6": "out/Debug/addon_6.node",
+      "addon_7": "Release/addon_7.node",
+      "addon_8": "Debug/addon_8.node",
+    };
+    const tempDirectoryPath = setupTempDirectory(context,
+      Object.fromEntries(
+        Object.values(expectedPaths)
+        .map((p) => [p, "// This is supposed to be a binary file"])
+      )
+    );
+    // Act & Assert
+    Object.entries(expectedPaths).forEach(([name, relPath]) => {
+      const expectedPath = path.join(tempDirectoryPath, relPath);
+      const actualPath = findNodeAddonForBindings(name, tempDirectoryPath);
+      assert.equal(actualPath, expectedPath);
+    });
+  });
+});

packages/host/src/node/babel-plugin/plugin.ts

@@ -60,7 +60,7 @@ const nodeBindingsSubdirs = [
   "./Release",
   "./Debug",
 ];
-function findNodeAddonForBindings(id: string, fromDir: string) {
+export function findNodeAddonForBindings(id: string, fromDir: string) {
   const idWithExt = id.endsWith(".node") ? id : `${id}.node`;
   // Support traversing the filesystem to find the Node-API module.
   // Currently, we check the most common directories like `bindings` does.