[OV JS] Perform inference in electron app in nodejs e2e test (openvin…

…otoolkit#27131)

### Details:
 - Extend e2e test of Node.js API by performing test inference

### Tickets:
 - 154192

src/bindings/js/node/tests/e2e/demo-electron-app/index.js

@@ -1,11 +1,39 @@
 const { app } = require('electron');
 const { addon: ov } = require('openvino-node');
 
-app.whenReady().then(() => {
-  console.log('Creating OpenVINO Runtime Core');
-  // eslint-disable-next-line @typescript-eslint/no-unused-vars
-  const core = new ov.Core();
-  console.log('Created OpenVINO Runtime Core');
+const epsilon = 0.5; // To avoid very small numbers
+const pathToModel = '../tests/unit/test_models/test_model_fp32.xml';
+
+main();
+
+async function main() {
+  await app.whenReady();
+
+  try {
+    console.log('Creating OpenVINO Runtime Core');
+    // eslint-disable-next-line @typescript-eslint/no-unused-vars
+    const core = new ov.Core();
+    console.log('Created OpenVINO Runtime Core');
+
+    const model = await core.readModel(pathToModel);
+    console.log('Model read successfully:', model);
+    const compiledModel = await core.compileModel(model, 'CPU');
+    const inferRequest = compiledModel.createInferRequest();
+    console.log('Infer request created:', inferRequest);
+
+    const tensorData = Float32Array.from(
+      { length: 3072 },
+      () => Math.random() + epsilon,
+    );
+    const tensor = new ov.Tensor(ov.element.f32, [1, 3, 32, 32], tensorData);
+    console.log('Tensor created:', tensor);
+
+    const result = await inferRequest.inferAsync([tensor]);
+    console.log('Infer request result:', result);
+  } catch (error) {
+    console.error('Error:', error);
+    app.exit(1);
+  }
 
   app.exit(0);
-});
+}

src/bindings/js/node/tests/e2e/electron-app.test.js

@@ -1,24 +1,17 @@
 /* global describe, it, before, after */
 const fs = require('node:fs');
+const util = require('node:util');
 const assert = require('node:assert');
 const { exec } = require('child_process');
+const execPromise = util.promisify(exec);
+const { testModels, downloadTestModel } = require('../unit/utils.js');
 
 describe('E2E testing for OpenVINO as an Electron dependency.', function() {
   this.timeout(50000);
 
-  before((done) => {
-    exec(
-      'cp -r ./tests/e2e/demo-electron-app/ demo-electron-app-project',
-      (error) => {
-        if (error) {
-          console.error(`exec error: ${error}`);
-
-          return done(error);
-        }
-
-        done();
-      },
-    );
+  before(async () => {
+    await downloadTestModel(testModels.testModelFP32);
+    await execPromise('cp -r ./tests/e2e/demo-electron-app/ demo-electron-app-project');
   });
 
   it('should install dependencies', (done) => {
@@ -37,7 +30,7 @@ describe('E2E testing for OpenVINO as an Electron dependency.', function() {
   });
 
   it('should run electron package and verify output', (done) => {
-    exec('cd demo-electron-app-project && npm start', (error, stdout) => {
+    exec(`cd demo-electron-app-project && npm start`, (error, stdout) => {
       if (error) {
         console.error(`exec error: ${error}`);
 
@@ -48,6 +41,14 @@ describe('E2E testing for OpenVINO as an Electron dependency.', function() {
         stdout.includes('Created OpenVINO Runtime Core'),
         'Check that openvino-node operates fine',
       );
+      assert(
+        stdout.includes('Model read successfully: ModelWrap {}'),
+        'Check that model is read successfully',
+      );
+      assert(
+        stdout.includes('Infer request result: { fc_out: TensorWrap {} }'),
+        'Check that infer request result is successful',
+      );
       done();
     });
   });