== Hoverfly Java - Easy Creation of Stub Http Servers for Testing
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A Java native language binding for http://hoverfly.io/[Hoverfly^], a Go proxy which allows you to simulate http services in your unit tests. Another term for this is https://en.wikipedia.org/wiki/Service_virtualization[Service Virtualisation^].
== Features
== Documentation
Full documentation is available http://hoverfly-java.readthedocs.io/[here^]
== Maven Dependency
<dependency>
<groupId>io.specto</groupId>
<artifactId>hoverfly-java</artifactId>
<version>0.19.0</version>
<scope>test</scope>
</dependency>
== Example === Create API simulation using capture mode
// Capture and output HTTP traffic to json file
@ClassRule
public static HoverflyRule hoverflyRule = HoverflyRule.inCaptureMode("simulation.json");
// After the capturing, switch to inSimulationMode to spin up a stub server
@ClassRule
public static HoverflyRule hoverflyRule = HoverflyRule.inSimulationMode(defaultPath("simulation.json"));
// Or you can use both approaches at once. If json file not present in capture mode, if present in simulation mode
@ClassRule
public static HoverflyRule hoverflyRule = HoverflyRule.inCaptureOrSimulationMode("simulation.json");
=== Create API simulation using DSL
@ClassRule
public static HoverflyRule hoverflyRule = HoverflyRule.inSimulationMode(dsl(
service("www.my-test.com")
.get("/api/bookings/1")
.willReturn(created("http://localhost/api/bookings/1"))
));
@Test
public void shouldBeAbleToGetABookingUsingHoverfly() {
// When
final ResponseEntity<String> getBookingResponse = restTemplate.getForEntity("http://www.my-test.com/api/bookings/1", String.class);
// Then
assertEquals(bookFlightResponse.getStatusCode(), CREATED);
assertEquals(bookFlightResponse.getHeaders().getLocation(), "http://localhost/api/bookings/1");
}
Some code examples for the DSL are available https://github.com/SpectoLabs/hoverfly-java/blob/master/src/test/java/io/specto/hoverfly/ruletest/HoverflyDslTest.java[here^].
More code examples for the DSL using request matchers can be found https://github.com/SpectoLabs/hoverfly-java/blob/master/src/test/java/io/specto/hoverfly/ruletest/HoverflyDslMatcherTest.java[here^].
=== Verify requests
// Verify that at least one request to a specific endpoint with any query params
hoverflyRule.verify(service(matches("*.flight.*")).get("/api/bookings").anyQueryParams(), atLeastOnce());
// Verify that an external service/dependency was not called
hoverflyRule.verifyZeroRequestTo(service(matches("*.flight.*")));
// Verify all the stubbed requests were made at least once
hoverflyRule.verifyAll();
== Contributions
Contributions are welcome!
To submit a pull request you should fork the Hoverfly-Java repository, and make your change on a feature branch of your fork.
As of v0.10.2
, hoverfly binaries are no longer stored in the repository. You should run ./gradlew clean test
once to cache the binaries for development with your IDE.
If you have forked this project prior to v0.10.2
, please re-fork to get a slimmer version of the repository.
== Issues
Feel free to raise an issues on Github.
== License
Apache License version 2.0.
(c) https://ioco.uk/[iOCO^] 2024.