public void ShouldAlwaysCreateNewInstanceOfDefaultFormat()
{
var firstFormat = CollectionFormat.CreateDefault()
.AddOptions(IncludeIndex)
.SetIndexValuePairPrefixAndSuffix("<", ">");
var firstToString = firstFormat.Compile();
var secondFormat = CollectionFormat.CreateDefault();
var secondToString = secondFormat.Compile();
Assert.That(secondFormat, Is.Not.SameAs(firstFormat));
Assert.That(secondToString, Is.Not.SameAs(firstToString));
Assert.That(
secondToString(new object[] { "John", "007", null, "Bond" }),
Is.EqualTo("['John', '007', '', 'Bond']")
);
}
public void ShouldCreateDefaultFormat()
{
ValueTuple <string, string> defaultPrefixAndSuffix = (null, null);
var format = CollectionFormat.CreateDefault();
var toString = format.Compile();
Assert.That(toString, Is.Not.Null);
Assert.That(format.IndexValueSeparator, Is.Null);
Assert.That(format.IndexValuePairSeparator, Is.EqualTo(", "));
Assert.That(format.ValuePrefixAndSuffix, Is.EqualTo(("'", "'")));
Assert.That(format.IndexPrefixAndSuffix, Is.EqualTo(defaultPrefixAndSuffix));
Assert.That(format.IndexValuePairPrefixAndSuffix, Is.EqualTo(defaultPrefixAndSuffix));
Assert.That(format.CollectionPrefixAndSuffix, Is.EqualTo(("[", "]")));
Assert.That(format.Options, Is.EqualTo(IncludeNullValues));
Assert.That(
toString(new object[] { "John", "007", null, "Bond" }),
Is.EqualTo("['John', '007', '', 'Bond']")
);
}
/// <summary>
/// Use <see cref="CollectionFormat"/> for converting members of <see cref="ICollection"/> type
/// to string. Only affects members which declared types are assignable to <see cref="ICollection"/>.
/// </summary>
/// <param name="setup">
/// Function accepting default <see cref="CollectionFormat"/> and returning modified version or brand new
/// instance to be used by <see cref="object.ToString"/> function being built. When it returns null than
/// default <see cref="CollectionFormat"/> (the one passed to it) will be used.
/// <see cref="CollectionFormat.CreateDefault"/> will be used when function is omitted (or null passed).
/// </param>
/// <returns>Updated <see cref="ToStringBuilder{TTarget}"/> instance.</returns>
public ToStringBuilder <TTarget> UseCollectionFormat(
Func <CollectionFormat, CollectionFormat> setup = null
)
{
return(Use <ICollection>(SetupFormat(CollectionFormat.CreateDefault(), setup).Compile()));
}
