diff --git a/packages/backend/src/managers/catalogManager.spec.ts b/packages/backend/src/managers/catalogManager.spec.ts
new file mode 100644
index 000000000..8d7ccc2cf
--- /dev/null
+++ b/packages/backend/src/managers/catalogManager.spec.ts
@@ -0,0 +1,134 @@
+/**********************************************************************
+ * Copyright (C) 2024 Red Hat, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ ***********************************************************************/
+
+/* eslint-disable @typescript-eslint/no-explicit-any */
+
+import { beforeEach, describe, expect, test, vi } from 'vitest';
+import content from '../ai-test.json';
+import userContent from '../ai-user-test.json';
+import type { Webview } from '@podman-desktop/api';
+import { CatalogManager } from '../managers/catalogManager';
+
+import * as fs from 'node:fs';
+
+vi.mock('./ai.json', () => {
+  return {
+    default: content,
+  };
+});
+
+vi.mock('node:fs', () => {
+  return {
+    existsSync: vi.fn(),
+    promises: {
+      readFile: vi.fn(),
+    },
+  };
+});
+
+vi.mock('@podman-desktop/api', () => {
+  return {
+    fs: {
+      createFileSystemWatcher: () => ({
+        onDidCreate: vi.fn(),
+        onDidDelete: vi.fn(),
+        onDidChange: vi.fn(),
+      }),
+    },
+  };
+});
+
+const mocks = vi.hoisted(() => ({
+  withProgressMock: vi.fn(),
+}));
+
+vi.mock('@podman-desktop/api', async () => {
+  return {
+    window: {
+      withProgress: mocks.withProgressMock,
+    },
+    ProgressLocation: {
+      TASK_WIDGET: 'TASK_WIDGET',
+    },
+    fs: {
+      createFileSystemWatcher: () => ({
+        onDidCreate: vi.fn(),
+        onDidDelete: vi.fn(),
+        onDidChange: vi.fn(),
+      }),
+    },
+  };
+});
+
+let catalogManager: CatalogManager;
+
+beforeEach(async () => {
+  const appUserDirectory = '.';
+
+  // Creating CatalogManager
+  catalogManager = new CatalogManager(appUserDirectory, {
+    postMessage: vi.fn(),
+  } as unknown as Webview);
+  vi.resetAllMocks();
+  vi.mock('node:fs');
+});
+
+describe('invalid user catalog', () => {
+  beforeEach(async () => {
+    vi.spyOn(fs.promises, 'readFile').mockResolvedValue('invalid json');
+    await catalogManager.loadCatalog();
+  });
+
+  test('expect correct model is returned with valid id', () => {
+    const model = catalogManager.getModelById('llama-2-7b-chat.Q5_K_S');
+    expect(model).toBeDefined();
+    expect(model.name).toEqual('Llama-2-7B-Chat-GGUF');
+    expect(model.registry).toEqual('Hugging Face');
+    expect(model.url).toEqual(
+      'https://huggingface.co/TheBloke/Llama-2-7B-Chat-GGUF/resolve/main/llama-2-7b-chat.Q5_K_S.gguf',
+    );
+  });
+
+  test('expect error if id does not correspond to any model', () => {
+    expect(() => catalogManager.getModelById('unknown')).toThrowError('No model found having id unknown');
+  });
+});
+
+test('expect correct model is returned from default catalog with valid id when no user catalog exists', async () => {
+  vi.spyOn(fs, 'existsSync').mockReturnValue(false);
+  await catalogManager.loadCatalog();
+  const model = catalogManager.getModelById('llama-2-7b-chat.Q5_K_S');
+  expect(model).toBeDefined();
+  expect(model.name).toEqual('Llama-2-7B-Chat-GGUF');
+  expect(model.registry).toEqual('Hugging Face');
+  expect(model.url).toEqual(
+    'https://huggingface.co/TheBloke/Llama-2-7B-Chat-GGUF/resolve/main/llama-2-7b-chat.Q5_K_S.gguf',
+  );
+});
+
+test('expect correct model is returned with valid id when the user catalog is valid', async () => {
+  vi.spyOn(fs, 'existsSync').mockReturnValue(true);
+  vi.spyOn(fs.promises, 'readFile').mockResolvedValue(JSON.stringify(userContent));
+
+  await catalogManager.loadCatalog();
+  const model = catalogManager.getModelById('model1');
+  expect(model).toBeDefined();
+  expect(model.name).toEqual('Model 1');
+  expect(model.registry).toEqual('Hugging Face');
+  expect(model.url).toEqual('https://model1.example.com');
+});
diff --git a/packages/backend/src/managers/catalogManager.ts b/packages/backend/src/managers/catalogManager.ts
index db1e390bd..4a251ec57 100644
--- a/packages/backend/src/managers/catalogManager.ts
+++ b/packages/backend/src/managers/catalogManager.ts
@@ -53,6 +53,15 @@ export class CatalogManager {
   public getModels(): ModelInfo[] {
     return this.catalog.models;
   }
+
+  public getModelById(modelId: string): ModelInfo {
+    const model = this.getModels().find(m => modelId === m.id);
+    if (!model) {
+      throw new Error(`No model found having id ${modelId}`);
+    }
+    return model;
+  }
+
   public getRecipes(): Recipe[] {
     return this.catalog.recipes;
   }
diff --git a/packages/backend/src/studio-api-impl.spec.ts b/packages/backend/src/studio-api-impl.spec.ts
index 727937e72..1cb114b9a 100644
--- a/packages/backend/src/studio-api-impl.spec.ts
+++ b/packages/backend/src/studio-api-impl.spec.ts
@@ -18,7 +18,7 @@
 
 /* eslint-disable @typescript-eslint/no-explicit-any */
 
-import { beforeEach, describe, expect, test, vi } from 'vitest';
+import { beforeEach, expect, test, vi } from 'vitest';
 import content from './ai-test.json';
 import userContent from './ai-user-test.json';
 import type { ApplicationManager } from './managers/applicationManager';
@@ -106,51 +106,6 @@ beforeEach(async () => {
   vi.mock('node:fs');
 });
 
-describe('invalid user catalog', () => {
-  beforeEach(async () => {
-    vi.spyOn(fs.promises, 'readFile').mockResolvedValue('invalid json');
-    await catalogManager.loadCatalog();
-  });
-
-  test('expect correct model is returned with valid id', async () => {
-    const model = await studioApiImpl.getModelById('llama-2-7b-chat.Q5_K_S');
-    expect(model).toBeDefined();
-    expect(model.name).toEqual('Llama-2-7B-Chat-GGUF');
-    expect(model.registry).toEqual('Hugging Face');
-    expect(model.url).toEqual(
-      'https://huggingface.co/TheBloke/Llama-2-7B-Chat-GGUF/resolve/main/llama-2-7b-chat.Q5_K_S.gguf',
-    );
-  });
-
-  test('expect error if id does not correspond to any model', async () => {
-    await expect(() => studioApiImpl.getModelById('unknown')).rejects.toThrowError('No model found having id unknown');
-  });
-});
-
-test('expect correct model is returned from default catalog with valid id when no user catalog exists', async () => {
-  vi.spyOn(fs, 'existsSync').mockReturnValue(false);
-  await catalogManager.loadCatalog();
-  const model = await studioApiImpl.getModelById('llama-2-7b-chat.Q5_K_S');
-  expect(model).toBeDefined();
-  expect(model.name).toEqual('Llama-2-7B-Chat-GGUF');
-  expect(model.registry).toEqual('Hugging Face');
-  expect(model.url).toEqual(
-    'https://huggingface.co/TheBloke/Llama-2-7B-Chat-GGUF/resolve/main/llama-2-7b-chat.Q5_K_S.gguf',
-  );
-});
-
-test('expect correct model is returned with valid id when the user catalog is valid', async () => {
-  vi.spyOn(fs, 'existsSync').mockReturnValue(true);
-  vi.spyOn(fs.promises, 'readFile').mockResolvedValue(JSON.stringify(userContent));
-
-  await catalogManager.loadCatalog();
-  const model = await studioApiImpl.getModelById('model1');
-  expect(model).toBeDefined();
-  expect(model.name).toEqual('Model 1');
-  expect(model.registry).toEqual('Hugging Face');
-  expect(model.url).toEqual('https://model1.example.com');
-});
-
 test('expect pull application to call the withProgress api method', async () => {
   vi.spyOn(fs, 'existsSync').mockReturnValue(true);
   vi.spyOn(fs.promises, 'readFile').mockResolvedValue(JSON.stringify(userContent));
diff --git a/packages/backend/src/studio-api-impl.ts b/packages/backend/src/studio-api-impl.ts
index edc4b989c..522c530a6 100644
--- a/packages/backend/src/studio-api-impl.ts
+++ b/packages/backend/src/studio-api-impl.ts
@@ -63,21 +63,13 @@ export class StudioApiImpl implements StudioAPI {
     return this.recipeStatusRegistry.getStatuses();
   }
 
-  async getModelById(modelId: string): Promise<ModelInfo> {
-    const model = this.catalogManager.getModels().find(m => modelId === m.id);
-    if (!model) {
-      throw new Error(`No model found having id ${modelId}`);
-    }
-    return model;
-  }
-
   async pullApplication(recipeId: string): Promise<void> {
     const recipe = this.catalogManager.getRecipes().find(recipe => recipe.id === recipeId);
     if (!recipe) throw new Error('Not found');
 
     // the user should have selected one model, we use the first one for the moment
     const modelId = recipe.models[0];
-    const model = await this.getModelById(modelId);
+    const model = this.catalogManager.getModelById(modelId);
 
     // Do not wait for the pull application, run it separately
     podmanDesktopApi.window