chore: reactor tests

Author: ilyar

.github/workflows/qa.yml

@@ -62,4 +62,4 @@ jobs:
       - name: run build
         run: npm run build
       - name: run test
-        run: npm test
+        run: npm test -- --coverage

jest.config.js

@@ -0,0 +1,17 @@
+import type { Config } from 'jest';
+
+const config: Config = {
+    preset: 'ts-jest',
+    testEnvironment: 'node',
+    roots: ['<rootDir>/tests'],
+    verbose: true,
+    silent: false,
+    coverageThreshold: {
+        global: {
+            statements: 98.13,
+        },
+    },
+    coveragePathIgnorePatterns: ['tests/'],
+};
+
+export default config;