fixed interface test for CI mode

Author: DavertMik

test/runner/interface_test.js

@@ -156,7 +156,12 @@ describe('CodeceptJS Interface', () => {
       expect(output).toContain('OK')
       expect(output).toContain('0 passed')
       expect(output).toContain('2 skipped')
-      expect(err).toBeFalsy()
+      if (process.env.CI) {
+        // we notify that no tests were executed, which is not expected on CI
+        expect(err).toBeTruthy()
+      } else {
+        expect(err).toBeFalsy()
+      }
       done()
     })
   })