Fixture Monkey is designed to easily generate controllable arbitrary instances. It allows you to reuse the same configurations of the instances in several tests.
You can write countless tests including edge cases, using just only one instance of the FixtureMonkey type. You can automatically generate instances of complex types and set fields with values from builders of the ArbitraryBuilder type. The well-defined builders can be reused in any test.
Each primitive type property is generated by Jqwik or kotest-property.
- JDK 1.8 or higher
- Jqwik 1.7.3
- Kotlin 1.8 or higher
- kotest-property 5.6.2
testImplementation("com.navercorp.fixturemonkey:fixture-monkey-starter:1.0.8")
testImplementation("com.navercorp.fixturemonkey:fixture-monkey-starter-kotlin:1.0.8")
<dependency>
<groupId>com.navercorp.fixturemonkey</groupId>
<artifactId>fixture-monkey-starter</artifactId>
<version>1.0.8</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.navercorp.fixturemonkey</groupId>
<artifactId>fixture-monkey-starter-kotlin</artifactId>
<version>1.0.8</version>
<scope>test</scope>
</dependency>
Add "lombok.anyConstructor.addConstructorProperties=true" in lombok.config
@Value
public class Order {
Long id;
String orderNo;
String productName;
int quantity;
long price;
List<String> items;
Instant orderedAt;
}
@Test
void sampleOrder() {
// given
FixtureMonkey sut = FixtureMonkey.builder()
.objectIntrospector(ConstructorPropertiesArbitraryIntrospector.INSTANCE)
.build();
// when
Order actual = sut.giveMeBuilder(Order.class)
.set(javaGetter(Order::getOrderNo), "1")
.set(javaGetter(Order::getProductName), "Line Sally")
.minSize(javaGetter(Order::getItems), 1)
.sample();
// then
then(actual.getOrderNo()).isEqualTo("1");
then(actual.getProductName()).isEqualTo("Line Sally");
then(actual.getItems()).hasSizeGreaterThanOrEqualTo(1);
}
data class Order (
val id: Long,
val orderNo: String,
val productName: String,
val quantity: Int,
val price: Long,
val items: List<String>,
val orderedAt: Instant
)
@Test
fun sampleOrder() {
// given
val sut = FixtureMonkey.builder()
.plugin(KotlinPlugin())
.build()
// when
val actual = sut.giveMeBuilder<Order>()
.setExp(Order::orderNo, "1")
.setExp(Order::productName, "Line Sally")
.minSizeExp(Order::items, 1)
.sample()
// then
then(actual.orderNo).isEqualTo("1")
then(actual.productName).isEqualTo("Line Sally")
then(actual.items).hasSizeGreaterThanOrEqualTo(1)
}
- FixtureMonkey Helper
- IntelliJ plugin that makes it easier to use Fixture Monkey string expressions & Kotlin DSL
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