MQE-1713: Generate/run test in single suite context

- Added unit test for different exception message

Author: KevinBKozan

dev/tests/unit/Magento/FunctionalTestFramework/Suite/SuiteGeneratorTest.php

@@ -145,7 +145,7 @@ public function testGenerateEmptySuite()
         $mockSuiteGenerator->generateSuite("basicTestSuite");
     }
 
-    public function testInvalidTestRef()
+    public function testInvalidSuiteTestPair()
     {
         // Mock Suite1 => Test1 and Suite2 => Test2
         $suiteDataArrayBuilder = new SuiteDataArrayBuilder();
@@ -188,6 +188,30 @@ public function testInvalidTestRef()
         $mockSuiteGenerator->generateAllSuites($manifest);
     }
 
+    public function testNonExistentSuiteTestPair()
+    {
+        $testDataArrayBuilder = new TestDataArrayBuilder();
+        $mockSimpleTest = $testDataArrayBuilder
+            ->withName('Test1')
+            ->withAnnotations(['group' => [['value' => 'group1']]])
+            ->withTestActions()
+            ->build();
+        $mockTestData = ['tests' => array_merge($mockSimpleTest)];
+        $this->setMockTestAndSuiteParserOutput($mockTestData, []);
+
+        // Make invalid manifest
+        $suiteConfig = ['Suite3' => ['Test1']];
+        $manifest = TestManifestFactory::makeManifest('default', $suiteConfig);
+
+        // Set up Expected Exception
+        $this->expectException(TestReferenceException::class);
+        $this->expectExceptionMessageRegExp('#Suite3 is not defined#');
+
+        // parse and generate suite object with mocked data and manifest
+        $mockSuiteGenerator = SuiteGenerator::getInstance();
+        $mockSuiteGenerator->generateAllSuites($manifest);
+    }
+
     /**
      * Function used to set mock for parser return and force init method to run between tests.
      *