Collection & Stream Types

Support for Collection Types

AutoParams offers extensive support for various collection types, enhancing its utility for more complex testing scenarios.

Arrays

AutoParams automatically generates array instances, each containing three elements by default.

Java

@ParameterizedTest
@AutoSource
void testMethod(int[] array1, String[] array2) {
}

Kotlin

@ParameterizedTest
@AutoSource
fun testMethod(array1: IntArray, array2: Array<String>) {
}

List Types

Both the List<E> interface and the ArrayList<E> class are supported. AutoParams generates list objects that contain a few elements.

Java

@ParameterizedTest
@AutoSource
void testMethod(List<String> list, ArrayList<UUID> arrayList) {
}

Kotlin

@ParameterizedTest
@AutoSource
fun testMethod(list: List<String>, arrayList: ArrayList<UUID>) {
}

Set Types

AutoParams also supports the Set<E> interface and the HashSet<E> class, generating set objects that contain a few elements.

Java

@ParameterizedTest
@AutoSource
void testMethod(Set<String> set, HashSet<UUID> hashSet) {
}

Kotlin

@ParameterizedTest
@AutoSource
fun testMethod(set: Set<String>, hashSet: HashSet<UUID>) {
}

Map Interface

Support extends to the Map<K, V> interface and the HashMap<K, V> class as well. AutoParams generates map objects containing a few key-value pairs.

Java

@ParameterizedTest
@AutoSource
void testMethod(Map<String, ComplexObject> map,
                HashMap<UUID, ComplexObject> hashMap) {
}

Kotlin

@ParameterizedTest
@AutoSource
fun testMethod(map: Map<String, ComplexObject>,
               hashMap: HashMap<UUID, ComplexObject>) {
}

This comprehensive support for collection types makes AutoParams an exceptionally versatile tool for generating test data, accommodating a wide variety of data structures to ensure thorough testing.

Support for Stream Types

AutoParams extends its versatility by offering support for various types of stream interfaces, further broadening your testing capabilities.

Generic Stream Interface

AutoParams supports the generic Stream<T> interface and generates stream objects containing a few elements.

Java

@ParameterizedTest
@AutoSource
void testMethod(Stream<ComplexObject> stream) {
}

Kotlin

@ParameterizedTest
@AutoSource
fun testMethod(stream: Stream<ComplexObject>) {
}

Stream Interfaces of Primitive Types

AutoParams also accommodates stream interfaces that are specific to primitive types, such as IntStream, LongStream, and DoubleStream.

Java

@ParameterizedTest
@AutoSource
void testMethod(IntStream arg1, LongStream arg2, DoubleStream arg3) {
}

Kotlin

@ParameterizedTest
@AutoSource
fun testMethod(arg1: IntStream, arg2: LongStream, arg3: DoubleStream) {
}

This added layer of support for stream types allows AutoParams to be a comprehensive solution for generating test data across a wide range of data structures and types, making your testing more robust and efficient.