fix(tests): do not use babel in our tests + new API for simple

e2e/__tests__/__snapshots__/simple.spec.ts.snap

@@ -0,0 +1,48 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`Simple test should pass with each template 1`] = `
+Object {
+  "default": jest exit code: 0
+    ===[ STDOUT ]===================================================================
+    
+    ===[ STDERR ]===================================================================
+    PASS __tests__/Hello.test.ts
+      Hello Class
+        ✓ should create a new Hello (XXms)
+    
+    Test Suites: 1 passed, 1 total
+    Tests:       1 passed, 1 total
+    Snapshots:   0 total
+    Time:        XXs
+    Ran all test suites.
+    ================================================================================,
+  "with-babel-7": jest exit code: 0
+    ===[ STDOUT ]===================================================================
+    
+    ===[ STDERR ]===================================================================
+    PASS __tests__/Hello.test.ts
+      Hello Class
+        ✓ should create a new Hello (XXms)
+    
+    Test Suites: 1 passed, 1 total
+    Tests:       1 passed, 1 total
+    Snapshots:   0 total
+    Time:        XXs
+    Ran all test suites.
+    ================================================================================,
+  "with-jest-22": jest exit code: 0
+    ===[ STDOUT ]===================================================================
+    
+    ===[ STDERR ]===================================================================
+    PASS __tests__/Hello.test.ts
+      Hello Class
+        ✓ should create a new Hello (XXms)
+    
+    Test Suites: 1 passed, 1 total
+    Tests:       1 passed, 1 total
+    Snapshots:   0 total
+    Time:        XXs
+    Ran all test suites.
+    ================================================================================,
+}
+`;

e2e/__tests__/simple.spec.ts

@@ -1,16 +1,14 @@
 import configureTestCase from '../__helpers__/test-case';
 
 describe('Simple test', () => {
-  it('should pass with babel 6', () => {
-    const testCase = configureTestCase('simple');
-    expect(testCase.run(0).status).toBe(0);
-  });
-  it('should pass with babel 7', () => {
-    const testCase = configureTestCase('simple', { template: 'with-babel-7' });
-    expect(testCase.run(0).status).toBe(0);
-  });
-  it('should pass with jest 22', () => {
-    const testCase = configureTestCase('simple', { template: 'with-jest-22' });
-    expect(testCase.run(0).status).toBe(0);
+  it('should pass with each template', () => {
+    const testCase = configureTestCase('simple', { args: ['--no-cache'] });
+    const result = testCase.runWithTemplates(
+      0,
+      'default',
+      'with-babel-7',
+      'with-jest-22',
+    );
+    expect(result).toMatchSnapshot();
   });
 });

jest.config.js

@@ -12,6 +12,7 @@ module.exports = {
   globals: {
     'ts-jest': {
       tsConfig: 'tsconfig.base.json',
+      useBabelJest: false,
     },
   },
 };