Experiment new design for integration tests.

[sbernard31]

This aims to propose new design for integration tests to allow us to launch tests with different transport layer implementation.

See RegistrationTest2 to see what it looks like.

// Check client is not registered
client = givenClient.build();
assertThat(client).isNotRegisteredAt(server);

// Start it and wait for registration
client.start();
server.waitForNewRegistrationOf(client);
client.waitForRegistrationTo(server);

// Check client is well registered
assertThat(client).isRegisteredAt(server);
Registration registration = server.getRegistrationFor(client);
assertThat(registration.getObjectLinks()) //
        .isEqualTo(linkParser.parseCoreLinkFormat(
                "</>;rt=\"oma.lwm2m\";ct=\"60 110 112 1542 1543 11542 11543\",</1>;ver=1.1,</1/0>,</2>,</3>;ver=1.1,</3/0>,</3442/0>"
                        .getBytes()));

// Check for update
client.waitForUpdateTo(server, LIFETIME, TimeUnit.SECONDS);
server.waitForUpdateOf(registration);
assertThat(client).isRegisteredAt(server);

// Check deregistration
client.stop(true);
server.waitForDeregistrationOf(registration);
assertThat(client).isNotRegisteredAt(server);

I used :

• AssertJ : to write more elegant assertion (see LeshanTestClientAssert)
• Mockito : to verify listener call (see waitFor** methods in LeshanTestClient and LeshanTestServer

I also use a kind of Junit5 HACK to be able to use parameter in @BeforeEach, See junit-team/junit5#3157 for more details.

[sbernard31]

Exploring class-level parameterization feature discussion (junit-team/junit5#878) at Junit5 repo, I found more workaround for this missing feature. (See junit-team/junit5#3157 (comment))
I created 2 more commit to tests those solutions but not so good to me, I feel the first I tried is the better one 😬 ...

So I plan to start to migrate some tests using this way.
(Stop me if you think I go in a bad direction :grin)

[sbernard31]

(I moved forward about that in parameterize_integration_test branch)

[sbernard31]

The first way to parameterized tests are integrated in #1425.