diff --git a/webapp/packages/core-sdk/package.json b/webapp/packages/core-sdk/package.json
index a9bcb942db..657f5471e2 100644
--- a/webapp/packages/core-sdk/package.json
+++ b/webapp/packages/core-sdk/package.json
@@ -17,6 +17,7 @@
     "gql:gen:dev": "graphql-codegen --watch",
     "lint": "eslint ./src/ --ext .ts,.tsx",
     "lint-fix": "eslint ./src/ --ext .ts,.tsx --fix",
+    "test": "core-cli-test",
     "validate-dependencies": "core-cli-validate-dependencies"
   },
   "dependencies": {
diff --git a/webapp/packages/core-sdk/src/Resource/CachedDataResource.test.ts b/webapp/packages/core-sdk/src/Resource/CachedDataResource.test.ts
new file mode 100644
index 0000000000..090cc5c880
--- /dev/null
+++ b/webapp/packages/core-sdk/src/Resource/CachedDataResource.test.ts
@@ -0,0 +1,95 @@
+/*
+ * CloudBeaver - Cloud Database Manager
+ * Copyright (C) 2020-2023 DBeaver Corp and others
+ *
+ * Licensed under the Apache License, Version 2.0.
+ * you may not use this file except in compliance with the License.
+ */
+import { CachedDataResource } from './CachedDataResource';
+
+interface IEntityData {
+  id: string;
+  value: number;
+}
+
+const DEFAULT_STATE_GETTER: () => IEntityData[] = () => [];
+const DATA_MOCK_GETTER: () => IEntityData[] = () => [
+  {
+    id: '1',
+    value: 1,
+  },
+  {
+    id: '2',
+    value: 2,
+  },
+];
+
+async function fetchMock(): Promise<IEntityData[]> {
+  return new Promise(resolve => {
+    setTimeout(() => {
+      resolve(DATA_MOCK_GETTER());
+    }, 1);
+  });
+}
+
+class TestDataResource extends CachedDataResource<IEntityData[]> {
+  constructor() {
+    super(DEFAULT_STATE_GETTER);
+  }
+
+  protected async loader() {
+    const data = await fetchMock();
+    return data;
+  }
+}
+
+describe('CachedDataResource', () => {
+  let dataResource: TestDataResource;
+
+  beforeEach(() => {
+    dataResource = new TestDataResource();
+  });
+
+  test('should instantiate correctly', () => {
+    expect(dataResource).toBeInstanceOf(CachedDataResource);
+  });
+
+  test('should initialize with the default state', () => {
+    expect(dataResource.data).toEqual(DEFAULT_STATE_GETTER());
+  });
+
+  test('should load data', async () => {
+    await dataResource.load();
+    expect(dataResource.data).toEqual(DATA_MOCK_GETTER());
+  });
+
+  test('should be able to outdate the data', () => {
+    dataResource.markOutdated();
+    expect(dataResource.isOutdated()).toBe(true);
+  });
+
+  test('should run onDataOutdated handlers on data outdate', () => {
+    const handler = jest.fn();
+
+    dataResource.onDataOutdated.addHandler(handler);
+    dataResource.markOutdated();
+
+    expect(handler).toHaveBeenCalled();
+  });
+
+  test('should run onDataUpdate handlers on data update', () => {
+    const handler = jest.fn();
+
+    dataResource.onDataUpdate.addHandler(handler);
+    dataResource.dataUpdate();
+
+    expect(handler).toHaveBeenCalled();
+  });
+
+  test('should be able to clear the data', async () => {
+    await dataResource.load();
+    dataResource.clear();
+
+    expect(dataResource.data).toEqual([]);
+  });
+});
diff --git a/webapp/packages/core-sdk/src/Resource/CachedMapResource.test.ts b/webapp/packages/core-sdk/src/Resource/CachedMapResource.test.ts
new file mode 100644
index 0000000000..7981a80274
--- /dev/null
+++ b/webapp/packages/core-sdk/src/Resource/CachedMapResource.test.ts
@@ -0,0 +1,254 @@
+/*
+ * CloudBeaver - Cloud Database Manager
+ * Copyright (C) 2020-2023 DBeaver Corp and others
+ *
+ * Licensed under the Apache License, Version 2.0.
+ * you may not use this file except in compliance with the License.
+ */
+import { toJS } from 'mobx';
+
+import { CachedMapResource } from './CachedMapResource';
+import type { ResourceKey } from './ResourceKey';
+import { resourceKeyList } from './ResourceKeyList';
+
+interface IEntityData {
+  id: string;
+  value: number;
+}
+
+const ERROR_ITEM_ID = 'error';
+
+const DATA_MOCK_GETTER: () => IEntityData[] = () => [
+  {
+    id: '1',
+    value: 1,
+  },
+  {
+    id: '2',
+    value: 2,
+  },
+  {
+    id: ERROR_ITEM_ID,
+    value: 3,
+  },
+];
+
+const TEST_ERROR_MESSAGE = 'Test error';
+const DEFAULT_STATE_GETTER = () => new Map();
+
+async function fetchMock(key: ResourceKey<string> | undefined): Promise<IEntityData[]> {
+  const data = DATA_MOCK_GETTER();
+
+  return new Promise((resolve, reject) => {
+    setTimeout(() => {
+      if (key) {
+        if (key === ERROR_ITEM_ID) {
+          reject(new Error(TEST_ERROR_MESSAGE));
+        }
+
+        const item = data.find(d => d.id === key);
+        if (item) {
+          resolve([item]);
+        }
+      } else {
+        resolve(data);
+      }
+    }, 1);
+  });
+}
+
+class TestMapResource extends CachedMapResource<string, IEntityData> {
+  constructor() {
+    super(DEFAULT_STATE_GETTER);
+  }
+
+  protected async loader(key: ResourceKey<string>) {
+    const data = await fetchMock(key);
+    this.replace(resourceKeyList(data.map(d => d.id)), data);
+    return this.data;
+  }
+
+  protected validateKey(key: string): boolean {
+    return typeof key === 'string';
+  }
+}
+
+describe('CachedMapResource', () => {
+  let mapResource: TestMapResource;
+
+  beforeEach(() => {
+    mapResource = new TestMapResource();
+  });
+
+  test('should instantiate correctly', () => {
+    expect(mapResource).toBeInstanceOf(CachedMapResource);
+  });
+
+  test('should initialize with the initial value', () => {
+    expect(toJS(mapResource.data)).toEqual(DEFAULT_STATE_GETTER());
+  });
+
+  test('should return all entries', () => {
+    mapResource.set('key1', { id: 'key1', value: 1 });
+    mapResource.set('key2', { id: 'key2', value: 2 });
+    expect(mapResource.entries).toEqual([
+      ['key1', { id: 'key1', value: 1 }],
+      ['key2', { id: 'key2', value: 2 }],
+    ]);
+  });
+
+  test('should return all values', () => {
+    mapResource.set('key1', { id: 'key1', value: 1 });
+    mapResource.set('key2', { id: 'key2', value: 2 });
+    expect(mapResource.values).toEqual([
+      { id: 'key1', value: 1 },
+      { id: 'key2', value: 2 },
+    ]);
+  });
+
+  test('should return all keys', () => {
+    mapResource.set('key1', { id: 'key1', value: 1 });
+    mapResource.set('key2', { id: 'key2', value: 2 });
+    expect(mapResource.keys).toEqual(['key1', 'key2']);
+  });
+
+  test('should load data for a specific key', async () => {
+    await mapResource.load('1');
+    expect(mapResource.get('1')).toEqual({ id: '1', value: 1 });
+    expect(mapResource.get('2')).toBeUndefined(); // This key was not loaded
+  });
+
+  test('should NOT load data for a key that produces an error', async () => {
+    await expect(mapResource.load(ERROR_ITEM_ID)).rejects.toThrow(TEST_ERROR_MESSAGE);
+    expect(mapResource.get(ERROR_ITEM_ID)).toBeUndefined();
+  });
+
+  test('should mark loaded data as loaded', async () => {
+    await mapResource.load('1');
+    expect(mapResource.isLoaded('1')).toBe(true);
+  });
+
+  test('should set and get a value', () => {
+    mapResource.set('key1', { id: 'key1', value: 1 });
+    expect(mapResource.get('key1')).toStrictEqual({ id: 'key1', value: 1 });
+  });
+
+  test('should delete a value', () => {
+    mapResource.set('key1', { id: 'key1', value: 1 });
+    mapResource.delete('key1');
+    expect(mapResource.get('key1')).toBeUndefined();
+  });
+
+  test('should check if a key exists', () => {
+    mapResource.set('key1', { id: 'key1', value: 1 });
+    expect(mapResource.has('key1')).toBe(true);
+    expect(mapResource.has('key2')).toBe(false);
+  });
+
+  test('should replace multiple keys', () => {
+    mapResource.set('key1', { id: 'key1', value: 1 });
+    mapResource.set('key2', { id: 'key2', value: 2 });
+    mapResource.set('key4', { id: 'key4', value: 4 });
+
+    mapResource.replace(resourceKeyList(['key1', 'key3']), [
+      { id: 'key1', value: 11 },
+      { id: 'key3', value: 33 },
+    ]);
+
+    expect(mapResource.get('key1')).toStrictEqual({ id: 'key1', value: 11 });
+    expect(mapResource.get('key2')).toBeUndefined();
+    expect(mapResource.get('key3')).toStrictEqual({ id: 'key3', value: 33 });
+    expect(mapResource.data.size).toBe(2);
+  });
+
+  test('should outdated certain keys', () => {
+    mapResource.set('key1', { id: 'key1', value: 1 });
+    mapResource.set('key2', { id: 'key2', value: 2 });
+
+    mapResource.markOutdated('key1');
+
+    expect(mapResource.isOutdated('key1')).toBe(true);
+    expect(mapResource.isOutdated('key2')).toBe(false);
+  });
+
+  test('should run onDataOutdated handlers on data outdate', () => {
+    const handler = jest.fn();
+
+    mapResource.set('key1', { id: 'key1', value: 1 });
+    mapResource.set('key2', { id: 'key2', value: 2 });
+
+    mapResource.onDataOutdated.addHandler(key => {
+      handler();
+      expect(key).toBe('key1');
+    });
+
+    mapResource.markOutdated('key1');
+    expect(handler).toHaveBeenCalled();
+  });
+
+  test('should run onDataUpdate handlers on data update', () => {
+    const handler = jest.fn();
+
+    mapResource.set('key1', { id: 'key1', value: 1 });
+    mapResource.set('key2', { id: 'key2', value: 2 });
+
+    mapResource.onDataUpdate.addHandler(key => {
+      handler();
+      expect(key).toBe('key2');
+    });
+
+    mapResource.dataUpdate('key2');
+    expect(handler).toHaveBeenCalled();
+  });
+
+  test('should run onItemDelete handlers on data delete', () => {
+    const handler = jest.fn();
+
+    mapResource.set('key1', { id: 'key1', value: 1 });
+    mapResource.set('key2', { id: 'key2', value: 2 });
+
+    mapResource.onItemDelete.addHandler(key => {
+      handler();
+      expect(key).toBe('key1');
+    });
+
+    mapResource.delete('key1');
+    expect(handler).toHaveBeenCalled();
+  });
+
+  test('should run onItemUpdate handlers on item update', () => {
+    const handler = jest.fn();
+
+    mapResource.set('key1', { id: 'key1', value: 1 });
+    mapResource.set('key2', { id: 'key2', value: 2 });
+
+    mapResource.onItemUpdate.addHandler(key => {
+      handler();
+      expect(key).toBe('key2');
+    });
+
+    mapResource.set('key2', { id: 'key2', value: 22 });
+    expect(handler).toHaveBeenCalled();
+  });
+
+  test('should run onDataError handlers on data error', async () => {
+    const handler = jest.fn();
+
+    mapResource.set('key1', { id: 'key1', value: 1 });
+    mapResource.set('key2', { id: 'key2', value: 2 });
+
+    mapResource.onDataError.addHandler(data => {
+      handler();
+      expect(data.param).toBe(ERROR_ITEM_ID);
+      expect(data.exception.message).toBe(TEST_ERROR_MESSAGE);
+    });
+
+    await expect(mapResource.load(ERROR_ITEM_ID)).rejects.toThrow(TEST_ERROR_MESSAGE);
+    expect(handler).toHaveBeenCalled();
+  });
+
+  test('should be able to get an exception if the one occurred for the key', async () => {
+    await expect(mapResource.load(ERROR_ITEM_ID)).rejects.toThrow(TEST_ERROR_MESSAGE);
+    expect(mapResource.getException(ERROR_ITEM_ID)?.message).toBe(TEST_ERROR_MESSAGE);
+  });
+});
diff --git a/webapp/packages/core-sdk/src/Resource/CachedTreeResource.test.ts b/webapp/packages/core-sdk/src/Resource/CachedTreeResource.test.ts
new file mode 100644
index 0000000000..fa54970887
--- /dev/null
+++ b/webapp/packages/core-sdk/src/Resource/CachedTreeResource.test.ts
@@ -0,0 +1,138 @@
+/*
+ * CloudBeaver - Cloud Database Manager
+ * Copyright (C) 2020-2023 DBeaver Corp and others
+ *
+ * Licensed under the Apache License, Version 2.0.
+ * you may not use this file except in compliance with the License.
+ */
+import { CachedTreeChildrenKey, CachedTreeResource, CachedTreeRootChildrenKey } from './CachedTreeResource';
+import type { ResourceKey } from './ResourceKey';
+import { resourceKeyList } from './ResourceKeyList';
+
+interface IMockDataEntity {
+  name: string;
+}
+
+class TestTreeResource extends CachedTreeResource<IMockDataEntity> {
+  constructor() {
+    super();
+  }
+
+  protected async loader(key: ResourceKey<string>) {
+    return this.data;
+  }
+
+  protected validateKey(key: string): boolean {
+    return typeof key === 'string';
+  }
+}
+
+describe('CachedMapResource', () => {
+  let treeResource: TestTreeResource;
+
+  beforeEach(() => {
+    treeResource = new TestTreeResource();
+  });
+
+  test('should instantiate correctly', () => {
+    expect(treeResource).toBeInstanceOf(CachedTreeResource);
+  });
+
+  test('should set data correctly', () => {
+    treeResource.set('root', { name: 'root' });
+    expect(treeResource.get('root')).toEqual({ name: 'root' });
+  });
+
+  test('.has should check if node exists correctly', () => {
+    treeResource.set('root', { name: 'root' });
+    treeResource.set('root/level2', { name: 'level2' });
+
+    expect(treeResource.has('root/level2')).toBe(true);
+    expect(treeResource.has('root/level3')).toBe(false);
+  });
+
+  test('the node should be outdated after markOutdated is called on it', () => {
+    treeResource.set('root', { name: 'root' });
+    treeResource.set('root/level2', { name: 'level2' });
+    treeResource.markOutdated('root');
+
+    expect(treeResource.isOutdated('root')).toBe(true);
+    expect(treeResource.isOutdated('root/level2')).toBe(false);
+  });
+
+  test('the nodes metadata should be outdated after markOutdated is called on it', () => {
+    treeResource.set('root', { name: 'root' });
+    treeResource.set('root/level2', { name: 'level2' });
+    treeResource.markOutdated('root');
+
+    expect(treeResource.getMetadata('root').outdated).toBe(true);
+    expect(treeResource.getMetadata('root/level2').outdated).toBe(false);
+  });
+
+  test('should run onDataOutdated handlers on data outdate', () => {
+    const handler = jest.fn();
+    treeResource.set('root', { name: 'root' });
+    treeResource.set('root/level2', { name: 'level2' });
+
+    treeResource.onDataOutdated.addHandler(key => {
+      handler();
+      expect(key).toBe('root');
+    });
+
+    treeResource.markOutdated('root');
+
+    expect(treeResource.isOutdated('root')).toBe(true);
+    expect(handler).toHaveBeenCalled();
+  });
+
+  test('CachedTreeChildrenKey alias should return key children of the node', () => {
+    const handler = jest.fn();
+
+    treeResource.set('root', { name: 'root' });
+    treeResource.set('root/level2', { name: 'level2' });
+    treeResource.set('root/level2/level3', { name: 'level3' });
+
+    treeResource.onDataOutdated.addHandler(key => {
+      handler();
+      expect(key).toEqual(resourceKeyList(['root/level2']));
+    });
+
+    treeResource.markOutdated(CachedTreeChildrenKey('root'));
+
+    expect(handler).toHaveBeenCalled();
+  });
+
+  test('CachedTreeRootChildrenKey alias should return children for the root node', () => {
+    treeResource.set('root', { name: 'root' });
+    treeResource.set('root/level2', { name: 'level2' });
+    treeResource.set('root/level2/level3', { name: 'level3' });
+
+    expect(treeResource.get(CachedTreeRootChildrenKey)).toEqual([{ name: 'root' }]);
+  });
+
+  test('should be able to delete the node', () => {
+    treeResource.set('root', { name: 'root' });
+    treeResource.set('root/level2', { name: 'level2' });
+
+    treeResource.delete('root/level2');
+
+    expect(treeResource.has('root/level2')).toBe(false);
+    expect(treeResource.has('root')).toBe(true);
+  });
+
+  test('should run onItemDelete handlers on data delete', () => {
+    const handler = jest.fn();
+
+    treeResource.set('root', { name: 'root' });
+    treeResource.set('root/level2', { name: 'level2' });
+
+    treeResource.onItemDelete.addHandler(key => {
+      handler();
+      expect(key).toBe('root/level2');
+    });
+
+    treeResource.delete('root/level2');
+
+    expect(handler).toHaveBeenCalled();
+  });
+});