public void LogValues_WithNullAndEnumerable_IsNotMutatingParameter()
{
string format = "TestMessage {Param1} {Param2} {Param3} {Param4}";
int param1 = 1;
string param2 = null;
int[] param3 = new[] { 1, 2, 3, 4 };
string param4 = "string";
var logValues = new FormattedLogValues(format, param1, param2, param3, param4);
logValues.ToString();
var state = logValues.ToArray();
Assert.Equal(new[]
{
new KeyValuePair <string, object>("Param1", param1),
new KeyValuePair <string, object>("Param2", param2),
new KeyValuePair <string, object>("Param3", param3),
new KeyValuePair <string, object>("Param4", param4),
new KeyValuePair <string, object>("{OriginalFormat}", format),
}, state);
}