public void It_accepts_a_custom_empty_value()
{
var builder = new DelimitedStringBuilder<int>
{
EmptyValue = "-empty-"
};
var value = builder
.ToString();
Assert.AreEqual("-empty-", value);
}
public void It_can_be_used_to_create_SQL_statements()
{
var andBuilder = new DelimitedStringBuilder<object>
{
Separator = " AND ",
Prefix = "(",
Suffix = ")",
};
var orBuilder = new DelimitedStringBuilder<string>
{
Separator = " OR ",
Prefix = "(",
Suffix = ")",
};
andBuilder.Append("a = 1").Append("b = 2");
orBuilder.Append("c = 3").Append("d = 4");
andBuilder.Append(orBuilder);
var whereClause = andBuilder.ToString();
Assert.AreEqual("(a = 1) AND (b = 2) AND ((c = 3) OR (d = 4))", whereClause);
}
public void It_skips_nested_builders_that_are_empty()
{
var andBuilder = new DelimitedStringBuilder<object>
{
Separator = " AND ",
Prefix = "(",
Suffix = ")",
};
var orBuilder = new DelimitedStringBuilder<string>
{
Separator = " OR ",
Prefix = "(",
Suffix = ")",
};
andBuilder.Append("a = 1").Append("b = 2");
andBuilder.Append(orBuilder);
var whereClause = andBuilder.ToString();
Assert.AreEqual("(a = 1) AND (b = 2)", whereClause);
}
public void It_returns_the_empty_string_when_no_items_are_added()
{
var builder = new DelimitedStringBuilder<int>();
var value = builder
.ToString();
Assert.AreEqual("", value);
}
public void It_has_a_ToString_overload_that_uses_the_specified_items()
{
var builder = new DelimitedStringBuilder<int>
{
Separator = "|"
};
var value = builder.ToString(new List<int> { 1, 2, 3 });
Assert.AreEqual("1|2|3", value);
}
