c# - wrong number of arguments provided in nunit -

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developed testcase testcasesource in selenium using c#. after running test case in nunit, shows error "wrong number of arguments provided". , test case code

[testfixture] class testcases  {     static string[] exceldata= readdata("inputdata.xls", "data", "testcase1");       [setup]     public void setup()     {         //setupcode here      }    [test, testcasesource("exceldata")]     public void sample (string level,string username,string password,string firstname)     {        //testcase code here      }      [teardown]     public void teardown()     {         tstlogic.driverquit();     }

the 4 values retrieved , can see values in nunit. shows error "wrong number of arguments provided". can anyaone please help?

the method marked testcasesource supposed return bunch of "testcases" - each testcase set of inputs required test method. each test-input-set in case must have 4 string params.

so testcasesource method should returning object[] contains internal 4 member arrays. see following example

[test, testcasesource("dividecases")] public void dividetest(int n, int d, int q) {     assert.areequal( q, n / d ); }  static object[] dividecases = {     new object[] { 12, 3, 4 },     new object[] { 12, 2, 6 },     new object[] { 12, 4, 3 }  };

in case, think testcasesource method returning 4 strings. nunit reads 4 input-param-sets.. each containing 1 string. attempting call parameterized test method 4 params 1 string => error seeing.

e.g. can reproduce error setting dividecases this

private static int[] dividecases = new int[] { 12, 3, 4 };  // wrong. blow

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