In MSTest you can do something like:
[TestMethod]
[DataSource("Microsoft.VisualStudio.TestTools.DataSource.CSV",
"testdata.csv", "testdata#csv", DataAccessMethod.Sequential)]
public void TestSomething()
{
double column1 = Convert.ToDouble(TestContext.DataRow["column1"]);
...
Assert.AreEqual(...);
}
What is the equivalent code in NUnit 2.5?
I got csv based data driven testing in NUnit working as follows:
Use the csv reader from code project, wrapped up in a private method returning IEnumerable in your test class, and then reference this with a TestCaseSource attribute on your test cases. Include your csv file in your project and set "Copy to Output Directory" to "Copy Always".
using System.Collections.Generic;
using System.IO;
using LumenWorks.Framework.IO.Csv;
using NUnit.Framework;
namespace mytests
{
class MegaTests
{
[Test, TestCaseSource("GetTestData")]
public void MyExample_Test(int data1, int data2, int expectedOutput)
{
var methodOutput = MethodUnderTest(data2, data1);
Assert.AreEqual(expectedOutput, methodOutput, string.Format("Method failed for data1: {0}, data2: {1}", data1, data2));
}
private int MethodUnderTest(int data2, int data1)
{
return 42; //todo: real implementation
}
private IEnumerable<int[]> GetTestData()
{
using (var csv = new CsvReader(new StreamReader("test-data.csv"), true))
{
while (csv.ReadNextRecord())
{
int data1 = int.Parse(csv[0]);
int data2 = int.Parse(csv[1]);
int expectedOutput = int.Parse(csv[2]);
yield return new[] { data1, data2, expectedOutput };
}
}
}
}
}
original post at: http://timwise.blogspot.com/2011/05/data-driven-test-in-nunit-with-csv.html