Test that demonstrates handing issue with broken imports on running t…

…ests 😭

When Webpack fails to resolve a dependency, Karma doesn’t get notified at all about the broken build, and the process just hangs.

Transpilation errors behave as expected.

spec/fixtures/project-content-with-invalid-import/src/index.spec.js

@@ -0,0 +1,5 @@
+import('name-that-is-invalid')
+
+describe('my project', function() {
+  it('should work not work at all', function() {})
+})

spec/integration/index.integration-spec.js

@@ -41,6 +41,8 @@ describe('[integration] sagui', function () {
   const projectContentCustomPrettierOptionsInEslintrc = path.join(__dirname, '../fixtures/project-content-with-custom-prettier-options-in-eslintrc')
   const projectContentWithDynamicImports = path.join(__dirname, '../fixtures/project-content-with-dynamic-import')
   const projectContentWithCaseMismatchInModulePath = path.join(__dirname, '../fixtures/project-with-case-mismatch-in-module-paths')
+  const projectContentWithInvalidImports = path.join(__dirname, '../fixtures/project-content-with-invalid-import')
+
   let projectPath, projectSrcPath
 
   beforeEach(function () {
@@ -482,5 +484,16 @@ npm-debug.log`)
           )
       })
     })
+
+    describe('when there are invalid imports', () => {
+      it('should not hang the test runner', async () => {
+        fs.copySync(projectContentWithInvalidImports, projectPath, { overwrite: true })
+        await sagui({ projectPath, action: actions.TEST_UNIT })
+          .then(
+            () => { throw new Error('It should have failed') },
+            (error) => expect(error).to.eql(1)
+          )
+      })
+    })
   })
 })