从Excel读取数据进行数据驱动测试时，Selenium C＃错误

Question

我正在尝试通过从Excel文件加载客户端代码以登录并执行其他操作来执行数据驱动的测试。我正在尝试对client_code列中的所有客户端进行测试。 我只需要读取client_code列并获取数据即可与这些客户端重复相同的测试。 我在以下代码中运行时得到Null值

任何帮助，将不胜感激，谢谢。

我正在使用ExcelDataReader v3.4.0，ExcelDataReader.DataSet v3.4.0，Selenium Webdriver v3.11.0

我的Excel表如下所示。

 client_code client_name 11111 Client1 22222 Client2 33333 Client3 44444 Client4 55555 Client5 

这是我的代码：

ExcelUtil.cs

 using ExcelDataReader; using System; using System.Collections.Generic; using System.Data; using System.IO; using System.Linq; using System.Runtime.Remoting.Messaging; using System.Text; using System.Threading.Tasks; namespace MyDemoAutomation { public class ExcelUtil { public DataTable ExcelToDatable(string fileName) { // open file and returns as stream FileStream stream = File.Open(fileName, FileMode.Open, FileAccess.Read); // create openXmlReader via ExcelReaderFactory IExcelDataReader excelReader = ExcelReaderFactory.CreateOpenXmlReader(stream); //Set the first row as column name var result1 = excelReader.AsDataSet(new ExcelDataSetConfiguration() { ConfigureDataTable = (_) => new ExcelDataTableConfiguration() { UseHeaderRow = true } }); // Return as dataset DataSet result = excelReader.AsDataSet(); // Get all tables DataTableCollection table = result.Tables; // Store in Database DataTable resultTable = table["Sheet1"]; // return return resultTable; } List<DataCollection> dataCol = new List<DataCollection>(); public void PopulateInCollection(string fileName) { DataTable table = ExcelToDatable(fileName); for (int row = 1; row <= table.Rows.Count; row++) { for (int col = 0; col < table.Columns.Count; col++) { DataCollection dtTable = new DataCollection() { rowNumber = row, colName = table.Columns[col].ColumnName, colValue = table.Rows[row - 1][col].ToString() }; dataCol.Add(dtTable); } } } public string ReadData(int rowNumber, string columnName) { try { // Retriving data using LINQ to reduce much of iterations string data = (from colData in dataCol where colData.colName == columnName && colData.rowNumber == rowNumber select colData.colValue).SingleOrDefault(); return data.ToString(); } catch (Exception e) { return null; } } internal class DataCollection { public int rowNumber { get; internal set; } public string colName { get; internal set; } public string colValue { get; internal set; } } } } 

测试类别：

  [Test] public void DataDrivenTest_FromExcel() { Driver = new ChromeDriver(); ExcelUtil util = new ExcelUtil(); util.PopulateInCollection(@"C:\\dan\\AutomationTest\\TestData\\test.xlsx"); Driver.FindElement(By.Id("contentPlaceholder_txtClientCode")).SendKeys(util.ReadData(i)); Driver.FindElement(By.XPath("//*[@id='btnLogin']")).Click(); Driver.FindElement(By.XPath("//*[@id='tabContent0']/table/tbody/tr[2]/td[1]")).Click(); Driver.FindElement(By.Id("contentPlaceholder_txtcloseButton")).Click(); Driver.Quit } 

Answer 1

您可以：

读取EXCEL文件：

class ExcelReader
 {
 public List<TestCaseData> ReadExcelData(string excelFile, string sheetname)
 {
    string cmdText = "SELECT * FROM [" + sheetname+ "$]";

    if (!File.Exists(excelFile))
        throw new Exception(string.Format("File name: {0}", excelFile), new 
    FileNotFoundException());

    string connectionStr = 
     string.Format("Provider=Microsoft.ACE.OLEDB.12.0;Data Source={0};Extended Properties=\"Excel 12.0 Xml;HDR=YES\";", excelFile);
    var ret = new List<TestCaseData>();
    using (var connection = new OleDbConnection(connectionStr))
    {
        connection.Open();
        var command = new OleDbCommand(cmdText, connection);
        var reader = command.ExecuteReader();
        if (reader == null)
            throw new Exception(string.Format("No data return from file, 
        file name:{0}", excelFile));
        while (reader.Read())
        {
            var row = new List<string>();
            var feildCnt = reader.FieldCount;
            for (var i = 0; i < feildCnt; i++)
                row.Add(reader.GetValue(i).ToString());
            ret.Add(new TestCaseData(row.ToArray()));
        }
    }
    return ret;
}

您的测试用例将保持如下所示：

      [TestFixture]
class TC_1
{

  public static IEnumerable<TestCaseData> BudgetData
    {
        get
        {
            List<TestCaseData> testCaseDataList = new ExcelReader().ReadExcelData(//path//document.xlsx",
                "SheetName");
            if (testCaseDataList != null)
                foreach (TestCaseData testCaseData in testCaseDataList)
                    yield return testCaseData;
        }
    }


    [Test]     
    [TestCaseSource(typeof(TC_1), "BudgetData")]
    public void TestCase1(string attribbutte1, string .....)
    {
     ........................................

注意：您需要安装引用“ Acces数据库引擎”以读取Excel文件

注意2：默认情况下，第一行是标题，对于每一新行，TC将被执行

执行相同的代码5次更改数据

Answer 2

@Miguel D'Alessio，您好，我尝试运行您提供的代码。 下面是我运行时出现错误的确切复制粘贴代码。 谢谢。

ExcelReader类别：

 namespace Automation { class ExcelReader { public List<TestCaseData> ReadExcelData(string excelFile, string sheetname) { string cmdText = "SELECT * FROM [" + sheetname + "$]"; if (!File.Exists(excelFile)) throw new Exception(string.Format("File name: {0}", excelFile), new FileNotFoundException()); string connectionStr = string.Format("Provider=Microsoft.ACE.OLEDB.12.0;Data Source={0};Extended Properties=\\"Excel 12.0 Xml;HDR=YES\\";", excelFile); var ret = new List<TestCaseData>(); using (var connection = new OleDbConnection(connectionStr)) { connection.Open(); var command = new OleDbCommand(cmdText, connection); var reader = command.ExecuteReader(); if (reader == null) throw new Exception(string.Format("No data return from file, file name:{ 0 }", excelFile)); while (reader.Read()) { var row = new List<string>(); var feildCnt = reader.FieldCount; for (var i = 0; i < feildCnt; i++) row.Add(reader.GetValue(i).ToString()); ret.Add(new TestCaseData(row.ToArray())); } } return ret; } } } 

测试类别：

 namespace Automation { [TestFixture] class Excel_TC_1 { private readonly string testCaseData; public static IEnumerable<TestCaseData> BudgetData { get { List<TestCaseData> testCaseDataList = new ExcelReader().ReadExcelData(@"C:\\Safety_dan\\AutomationTest\\TestData\\test.xlsx", "Sheet1"); if (testCaseDataList != null) foreach (TestCaseData testCaseData in testCaseDataList) yield return testCaseData; } } [Test] [TestCaseSource(typeof(Excel_TC_1), "BudgetData")] public void TestCase1(string attribbutte1) { // Login CcLoginPageObject ccPageLogin = new CcLoginPageObject(); ClientLoginPageObject clientLoginPage = new ClientLoginPageObject(); ccPageLogin.Login("username", "password"); // Loading client code: Driver.FindElement(By.Id("ClientsSearch")).SendKeys(testCaseData); } } } 

错误：

 Test Name: TestCase1 Test FullName: Automation.Excel_TC_1.TestCase1 Test Source: C:\\Safety_dan\\-localRepoVisualStudioC#\\Automation\\Excel_TC_1.cs : line 32 Test Outcome: Failed Test Duration: 0:00:00.005 Result StackTrace: at System.Data.OleDb.OleDbServicesWrapper.GetDataSource(OleDbConnectionString constr, DataSourceWrapper& datasrcWrapper) at System.Data.OleDb.OleDbConnectionInternal..ctor(OleDbConnectionString constr, OleDbConnection connection) at System.Data.OleDb.OleDbConnectionFactory.CreateConnection(DbConnectionOptions options, DbConnectionPoolKey poolKey, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningObject) at System.Data.ProviderBase.DbConnectionFactory.CreateConnection(DbConnectionOptions options, DbConnectionPoolKey poolKey, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection, DbConnectionOptions userOptions) at System.Data.ProviderBase.DbConnectionFactory.CreateNonPooledConnection(DbConnection owningConnection, DbConnectionPoolGroup poolGroup, DbConnectionOptions userOptions) at System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection owningConnection, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal oldConnection, DbConnectionInternal& connection) at System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions) at System.Data.ProviderBase.DbConnectionClosed.TryOpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions) at System.Data.ProviderBase.DbConnectionInternal.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) at System.Data.OleDb.OleDbConnection.Open() at Automation.ExcelReader.ReadExcelData(String excelFile, String sheetname) in C:\\Safety_dan\\-localRepoVisualStudioC#\\Automation\\Excel_TC_1.cs:line 27 at Automation.Excel_TC_1.<get_BudgetData>d__2.MoveNext() in C:\\Safety_dan\\-localRepoVisualStudioC#\\Automation\\Excel_TC_1.cs:line 20 at NUnit.Framework.TestCaseSourceAttribute.GetTestCasesFor(IMethodInfo method) in C:\\src\\nunit\\nunit\\src\\NUnitFramework\\framework\\Attributes\\TestCaseSourceAttribute.cs:line 177 Result Message: System.InvalidOperationException : The 'Microsoft.ACE.OLEDB.12.0' provider is not registered on the local machine.