test: extends coverage for sqlite service

src/app/services/sqlite.spec.ts

@@ -2,6 +2,7 @@ import { TestBed } from '@angular/core/testing';
 import { vi } from 'vitest';
 import { Sqlite } from './sqlite';
 import { WebSqlite } from 'angular-web-sqlite';
+import { BatchOp } from '../types/sqlite.type';
 
 describe('Sqlite', () => {
   let service: Sqlite;
@@ -9,7 +10,9 @@ describe('Sqlite', () => {
 
   beforeEach(() => {
     webSqlite = {
-      init: vi.fn(),
+      init: vi.fn().mockResolvedValue(undefined),
+      executeSql: vi.fn().mockResolvedValue({ rows: [] }),
+      batchSql: vi.fn().mockResolvedValue({ rows: [] }),
     };
 
     TestBed.configureTestingModule({
@@ -21,4 +24,44 @@ describe('Sqlite', () => {
   it('should be created', () => {
     expect(service).toBeTruthy();
   });
+
+  it('should init database', () => {
+    service.initializeDatabase('test').then(() => expect(webSqlite.init).toHaveBeenCalledTimes(1));
+  });
+
+  it('should call executeSql with the given parameters', () => {
+    const SQL_MOCK = `INSERT INTO MOCK VALUES ( ?, ? );`;
+    const PARAMS_MOCK = [1, 'MOCK'];
+    service
+      .executeQuery(SQL_MOCK, PARAMS_MOCK)
+      .then(() =>
+        expect(webSqlite.executeSql).toHaveBeenCalledExactlyOnceWith(SQL_MOCK, PARAMS_MOCK),
+      );
+  });
+
+  it('should call batchSql with the given parameters', () => {
+    const batch: BatchOp[] = [
+      ['DROP TABLE chain;', []],
+      ['DROP TABLE establishment;', []],
+    ];
+    service
+      .batchSqlOperations(batch)
+      .then(() => expect(webSqlite.batchSql).toHaveBeenCalledExactlyOnceWith(batch));
+  });
+
+  it('should drop all existing tables that are not sqlite engine related', () => {
+    const batchSqlOperationsSpy = vi
+      .spyOn(service, 'batchSqlOperations')
+      .mockResolvedValue({ rows: [] });
+    const TABLES_QUERY_RESULT_MOCK = {
+      rows: [{ name: 'chain' }, { name: 'establishment' }, { name: 'sqlite_sequence' }],
+    };
+    const expectedBatch = TABLES_QUERY_RESULT_MOCK.rows
+      .filter((r) => !r.name.startsWith('sqlite_'))
+      .map((table) => [`DROP TABLE ${table.name};`, []]);
+    webSqlite.executeSql = vi.fn().mockResolvedValue(TABLES_QUERY_RESULT_MOCK);
+    service
+      .dropAllTables()
+      .then(() => expect(batchSqlOperationsSpy).toHaveBeenCalledExactlyOnceWith(expectedBatch));
+  });
 });