test: introduce basic tests

.eslintrc.yml

@@ -6,17 +6,20 @@ ignorePatterns:
   - dist
   - plop
   - prisma
+  - jest.config.js
 plugins:
   - jest
   - '@typescript-eslint'
 parserOptions:
   ecmaVersion: 9
   sourceType: module
+  project: ./tsconfig.json
 extends:
   - eslint:recommended
   - plugin:@typescript-eslint/eslint-recommended
   - plugin:@typescript-eslint/recommended
   - plugin:jest/recommended
+  - plugin:jest/style
   - plugin:eslint-comments/recommended
   - prettier
 rules:

.gitignore

@@ -48,3 +48,6 @@ dist/
 
 # Prisma related files
 dmmf.json
+
+# Test artifacts
+.testArtifacts

package.json

@@ -45,6 +45,7 @@
     "@types/jest": "^27.0.1",
     "@types/node": "^14.17.9",
     "@types/ramda": "^0.27.44",
+    "@types/temp": "^0.9.1",
     "@typescript-eslint/eslint-plugin": "^4.29.2",
     "@typescript-eslint/parser": "^4.29.2",
     "eslint": "^7.32.0",
@@ -56,6 +57,7 @@
     "prettier": "^2.3.2",
     "prisma": "^2.29.1",
     "semantic-release": "^17.4.5",
+    "temp": "^0.9.4",
     "ts-jest": "^27.0.5",
     "typescript": "^4.3.5"
   },

tests/index.test.ts

@@ -0,0 +1,41 @@
+import { getGenerator } from '@prisma/sdk';
+import temp from 'temp';
+import path from 'path';
+import fs from 'fs';
+
+describe('given prisma-sequelize-generator,', () => {
+  beforeAll(() => {
+    temp.track();
+  });
+
+  afterAll(() => {
+    temp.cleanupSync();
+  });
+
+  it('should generate models.', async () => {
+    expect.hasAssertions();
+
+    const mockDir = temp.mkdirSync({ dir: path.join(__dirname, '../.testArtifacts') });
+
+    const generator = await getGenerator({
+      schemaPath: path.join(__dirname, '../prisma/schema.prisma'),
+      baseDir: mockDir,
+      printDownloadProgress: false,
+      skipDownload: true,
+    });
+
+    await generator.generate();
+
+    const expectedDir = path.join(mockDir, 'sequelize');
+    expect(fs.existsSync(expectedDir)).toBe(true);
+    expect(fs.existsSync(path.join(expectedDir, 'index.ts'))).toBe(true);
+    expect(fs.existsSync(path.join(expectedDir, 'config.json'))).toBe(true);
+    expect(fs.existsSync(path.join(expectedDir, 'models', 'index.ts'))).toBe(true);
+    expect(fs.existsSync(path.join(expectedDir, 'models', 'Post.ts'))).toBe(true);
+    expect(fs.existsSync(path.join(expectedDir, 'models', 'User.ts'))).toBe(true);
+    expect(fs.existsSync(path.join(expectedDir, 'utils', 'index.ts'))).toBe(true);
+    expect(fs.existsSync(path.join(expectedDir, 'utils', 'find.ts'))).toBe(true);
+
+    generator.stop();
+  });
+});

tsconfig.json

@@ -14,7 +14,8 @@
     "strictFunctionTypes": true
   },
   "include": [
-    "src"
+    "src/**/*.ts",
+    "tests/**/*.ts"
   ],
   "exclude": [
     "node_modules"