Tmx.TestData.GetTestCase C# (CSharp) Method

        internal static ITestCase GetTestCase(
            ITestSuite testSuite,
            string testCaseName,
            string testCaseId,
            string testScenarioName,
            string testScenarioId,
            string testSuiteName,
            string testSuiteId,
            Guid testPlatformId)
        {
            ITestCase result = null;
            
            if (null == testSuite) {
                
                testSuite =
                    GetTestSuite(
                        testSuiteName,
                        testSuiteId,
                        testPlatformId);
                
            }
            
            if (null == testSuite)
                // better error description?
                return result;
            
            ITestScenario testScenario = null;
            
            if (null != testSuite)
                testScenario =
                    GetTestScenario(
                    testSuite,
                    testScenarioName,
                    testScenarioId,
                    testSuiteName,
                    testSuiteId,
                    testPlatformId);
            
            if (null == testScenario)
                // better error description?
                return result;
            
            if (null != testScenario && 0 < testScenario.TestCases.Count)
                foreach (var testCase in testScenario.TestCases)
                    if ((testCaseName == testCase.TestCaseName &&
                        testCaseId == testCase.TestCaseId) ||
                        (string.IsNullOrEmpty(testCaseName) && testCaseId == testCase.TestCaseId) ||
                        (string.IsNullOrEmpty(testCaseId) && testCaseName == testCase.TestCaseName)) {
                        
                        result = testCase;
                        break;
                    }
            
            return result;
        }