public void With_null_existingConnection_throws()
{
Assert.Equal(
"existingConnection", Assert.Throws <ArgumentNullException>(() => Database.Exists((DbConnection)null)).ParamName);
}
public void With_whitespace_nameOrConnectionString_throws()
{
Assert.Equal(
Strings.ArgumentIsNullOrWhitespace("nameOrConnectionString"),
Assert.Throws <ArgumentException>(() => Database.Exists(" ")).Message);
}