Update tests to use 'whoami' command instead of cmd

src/YesNt.Interpreter.Tests/SystemStatementsTests.cs

@@ -12,7 +12,7 @@ public class SystemStatementsTests
     {
         List<string> lines =
         [
-            "exec cmd with /c,echo yesnt",
+            "exec whoami",
             "var exitCode = %out",
             "${exitCode}"
         ];
@@ -20,14 +20,26 @@ public class SystemStatementsTests
         YesNtAssert.IsLastLineEqual(lines, "0");
     }
 
+    [TestMethod]
+    public void ExecWithArgsRunsProcessTestWithArgument()
+    {
+        List<string> lines =
+        [
+            "exec whoami with /?",
+            "var exitCode = %out",
+            "var dummy = 0",
+            "${dummy}"
+        ];
+
+        YesNtAssert.IsLastLineEqual(lines, "0");
+    }
+
     [TestMethod]
     public void ExecWithInStackArgsRunsProcessTest()
     {
         List<string> lines =
         [
-            "push_in /c",
+            "exec whoami",
-            "push_in echo yesnt",
-            "exec cmd",
             "var exitCode = %out",
             "${exitCode}"
         ];